Skip to content
Visiting or new to Scottsdale? Start here
Scottsdale.tips
Breed association The booster clubs Since 1952 The all-volunteer club behind the Scottsdale Arabian Horse Show

The Arabian Horse Association of Arizona: The Breeders' Club That Made Scottsdale the Arabian Capital of the World

The Arabian Horse Association of Arizona is the volunteer club, founded at a Phoenix hotel in August 1952 with Ed Tweed as president, that stages the Scottsdale Arabian Horse Show every February. The show began at the Arizona Biltmore with a few dozen horses and now draws more than 2,400, the world's largest. It is why the city built WestWorld.

Illustration for Arabian Horse Association of Arizona: the all-volunteer club behind the scottsdale arabian horse show

The 30-second version

  • Arabian owners met at the Hotel Westward Ho in Phoenix in August 1952 and elected Edwin J. Tweed of Brusally Ranch president; the club incorporated in 1955.
  • The first all-Arabian show ran at the Arizona Biltmore in the mid-1950s; Anne McCormick's Paradise Park hosted it from 1957-58, and by 1961 it drew 300 horses from 39 states.
  • Kaiser-Aetna evicted the show from the old McCormick ranch in 1978; it moved to Paradise Park II on Bell Road in 1979 and to WestWorld in February 1989.
  • Entries peaked at 2,460 horses in 1985, the top of the tax-shelter bubble; the Tax Reform Act of 1986 collapsed the market and registrations fell 15,000 a year.
  • Today's show runs eleven days with 2,400-plus horses and $3 million in prize money; the association reported $5.6 million in revenue in fiscal 2025 and holds WestWorld through 2033.

The gap it was created to fill

In the early 1950s the Valley had a few wealthy newcomers breeding Arabians, the Wrigleys at the Arizona Biltmore stables, the McCormicks on their ranch, Ed Tweed at Brusally Ranch, but no club, no show and no way to prove a horse closer than California. The national breed body wanted a state association. In August 1952 a small group met at the Hotel Westward Ho in Phoenix, formed the Arabian Horse Association of Arizona and elected Tweed president; by the mid-1950s it was staging its own all-Arabian show.

Founded

1952

Founded by

Edwin J. 'Ed' Tweed, Brusally Ranch (first president), Hal Clay (vice president), Dorothy Clyde Long (secretary-treasurer)

Legal shape

501(c)(5) agricultural organization, Arizona nonprofit (incorporated 1955; IRS ruling May 1972)

Where

WestWorld of Scottsdale, 16601 N. Pima Rd. (show grounds)

Mission since founding

Expanded

Grew into new work ahead of any documented need, usually following the money.

How it began

Improvised

Grew out of what a few people were already doing; the paperwork came later.

Official site

scottsdaleshow.com ↗

How it’s run

Who decides
An elected volunteer board of members; presidents rotate, with Mike Beethe named for 2027
Who pays
Show entries, stall rentals, gate, vendor and sponsor revenue, about $5.6 million a year
Who belongs
Several hundred dues-paying owners, breeders and enthusiasts, open to anyone, up from about a dozen in 1952

Why it matters

The Arabian Horse Association of Arizona is the volunteer club of owners and breeders, founded at a Phoenix hotel in August 1952, that has staged the Scottsdale Arabian Horse Show every winter since the mid-1950s and never handed it off. Every February about 2,400 horses, their owners, grooms and buyers from three continents fill WestWorld for eleven days, and the city counts the bill in nine figures.

The club matters out of all proportion to its size because the show came first. Before the golf tournament, the car auction and the resorts, what drew money to Scottsdale in February was horses, and the people who bred them, the Wrigleys, the McCormicks and Ed Tweed, were the city’s first winter aristocracy. WestWorld exists because the show needed a home, the Princess and WestWorld corridor grew up around it, and the global Arabian trade treats Scottsdale as its capital because this club made it one.

Where to find it today

WestWorld of Scottsdale, 16601 N. Pima Rd., for the February show and the September Arabian National Breeder Finals. scottsdaleshow.com for membership, the smaller club shows and the association’s own history pages. McCormick Ranch, where street names like Arabian Trail mark where Paradise Park stood. The western heritage guide explains what you are watching once you get there.

How it started

The Arabians came to the Valley with money. The Philip K. Wrigley family, who owned the Arizona Biltmore, shipped their horses from Chicago each winter and kept them at the hotel’s stables. Fowler and Anne McCormick bought their first Arabian in 1948 and were, by Arizona Highways’ account, “the first of the larger breeders to settle in the Valley.” Edwin J. “Ed” Tweed, a Chicago businessman, founded Brusally Ranch in 1950 seven miles north of Scottsdale; his stallion Skorage would win 22 halter championships. By the early 1950s Arizona had seventeen Arabian breeders, fourteen of them around Paradise Valley, and nowhere to show.

In August 1952, at the Hotel Westward Ho in downtown Phoenix, a small group of owners formed the Arabian Horse Association of Arizona, electing Tweed president, Hal Clay vice president and Dorothy Clyde Long secretary-treasurer. The first exhibitions were modest affairs at the Casa Blanca Inn. The first real competition came at the Arizona Biltmore arena, sponsored by Helen Wrigley, the McCormicks and Tweed. The association’s own history dates it to 1954 with 102 horses; the show’s publicity and most retellings say 1955 and about fifty horses from a dozen farms, and the show numbers its editions from 1956. The club incorporated in 1955.

Anne McCormick then built Paradise Park, a masonry-walled arena with palm trees on the northern part of her ranch, and from 1957 or 1958 the All-Arabian Horse Show was held there. The 1961 show drew more than 300 horses from 39 states, Canada and Mexico, and Arizona Highways, in January 1962, called it “the most important Arabian show in the United States” six years after it began. More than eighty percent of exhibitors were small owners, the detail that explains the club’s survival: a show for everyone who owned an Arabian, run by the people who owned the most.

The decisions that locked it in

One show, every February. The club could have been a social circle that put on exhibitions. Instead it committed to a single annual competition and built everything around it, which is why the association today has a $5.6 million budget, a largely volunteer workforce, and a date the Valley’s winter horse calendar still turns on.

Polish blood. In the spring of 1963 Anne McCormick imported the Russian-bred stallion Naborr, the first Russian Arabian registered in America since 1913, and Tweed’s trainer Steve Spalding brought fourteen Polish and three Russian horses back to Brusally. By one count Scottsdale came to hold 72 Polish imports, more than the rest of the country combined; the LaCroix family’s Lasma Arabians became the breed’s most aggressive marketer, and the show became the place a Polish-bred horse made its reputation.

Stay in Scottsdale, twice. Anne McCormick died on May 25, 1969. Her will asked that the show remain on the ranch for ten years, but the club could not reach terms with the estate for 1969 and 1970 and moved to Kemper Marley’s property at Bell and Tatum roads before returning in 1971. The ranch had been sold in 1970 to Kaiser-Aetna, and on March 1, 1978, as the 24th show closed, the developer served notice to vacate; the land became houses, and McCormick Ranch named the streets after horse breeds. The club could have taken the show to Phoenix or California. It leased 85 acres of state land on Bell Road west of Scottsdale Road, built Paradise Park II, and opened there in 1979 on borrowed time.

Take the city’s offer. The city had wanted a horse grounds since the airport’s runway expansion closed Cholla Park. In July 1982 it signed a cost-sharing agreement with the U.S. Bureau of Reclamation for 132 acres of a flood-retention basin protecting the Central Arizona Project canal; Horseman’s Park broke ground on November 3, 1982, took in 224 more acres in 1985, and in 1986 the city hired K-Lin Corporation under Howard Keim to run it and build the covered Equidome, dedicated February 8, 1987. Renamed HorseWorld in 1988, it received the show in February 1989. WestWorld, as it became in 1990, was a landlord the club could not be evicted by and one with a motive to invest: the city spent $51.3 million on the Tony Nelssen Equestrian Center in 2013, and on January 13, 2015, approved contract 2015-012-COS giving the association the grounds each February and September from 2014 through 2023, with a ten-year extension at the club’s election to 2033.

The years it nearly ended

The association’s near-death experiences were about land, and then about money that was not its own. The evictions of 1969 and 1978 ended with the club on new ground inside the city and the show bigger. The third crisis it could not control.

In the early 1980s the Arabian became, in one industry history’s words, “living art” for investors who needed losses. Breeding operations qualified as tax shelters only if the animals kept reproducing, so they did: more than 100,000 purebreds were registered between 1982 and 1986, more than in the previous 65 years combined. The mare NH Love Potion sold for $2.55 million in 1984; the stallion Padron was syndicated for $11 million. Scottsdale was the epicenter, with Lasma’s auctions and farms built like resorts, and the show hit its all-time peak of 2,460 horses in 1985.

Then the Tax Reform Act of 1986 ended the passive-loss deductions the shelters ran on, and the market collapsed. Registrations fell by more than 15,000 a year from 1986 to 1991; horses that had sold for six figures were repossessed, dumped at low-end auctions or sent to slaughter; by decade’s end average prices were back to $10,000 to $25,000. Farms around Scottsdale failed. The association had taken none of the shelter money and could do nothing but keep showing. It did, and over the 1990s the show rebuilt itself on a different economy: Gulf and European buyers for whom the Arabian was heritage rather than a deduction. That the club owned no farm, no horses and no debt is why it is still here and most of the 1985 exhibitors are not.

What it set out to do, and what it does now

The 1952 purpose was “to promote interest in the Arabian horse,” and the first show was a breeders’ showcase for a dozen members. Today’s statement adds welfare, education, youth programs and preservation of the breed’s heritage, and the club has several hundred members. The real change is scale and partners. A members’ show has become an eleven-day commercial event with 350 vendors, $3 million in prize money, a 300,000-person gate and a city that commissions studies to prove its worth: close to $100 million a year by the figure the city and the association both use, inside a WestWorld total an Arizona State University study put at $163.6 million in state GDP for 2023-24. The association became a tourism institution, and the city’s interest is the hotel tax. The club still runs the show, and the city, for all its investment, is the landlord.

Who the record leaves out

The club’s own history is a history of founders and venues. The grooms, trainers and barn help who have done the work for seventy years appear nowhere in it, and no one has recorded their account of show week. The small owners who were eighty percent of exhibitors in 1961 are a statistic; their names are in old programs, not online. The 1980s are told as a story of prices, not of the people who bought a share of a stallion on a banker’s advice and lost it, or of the horses that went to slaughter. The ground under the show was federal flood-control land before the city leased it, and whose desert it was before that is not part of the account. And the women who built the show, Anne McCormick above all, appear as benefactors; who actually ran the club’s committees in its first decades is not public.

What it didn’t have to become

The show did not have to stay in Scottsdale. In 1978 a club with no land and a developer’s eviction notice had every reason to go where the showgrounds already were, and the Arabian world would have followed; California had the horses and the facilities. The club chose a state-land lease on Bell Road instead, and a decade later the city, which had built HorseWorld for exactly this tenant, made the choice permanent. Without that, WestWorld is a flood-control basin with a soccer field, Barrett-Jackson finds another town, and Scottsdale’s February belongs to golf alone. The breeders’ club of 1952 set out to show its horses close to home, and kept insisting on the close-to-home part until the city built it a home.

Who paid for it at the start, and what they got

The breeders were the first patrons. The Wrigleys lent the Biltmore arena for the first show; Helen Wrigley, the McCormicks and Tweed sponsored it. Anne McCormick then built Paradise Park on her ranch, and her will asked that the show stay ten years after her 1969 death. After Kaiser-Aetna's 1978 eviction the club leased state land on Bell Road, and since 1989 the City of Scottsdale has been landlord at WestWorld under agreements now running to 2033.

The decisions that locked it in

Each one could have gone another way. What was chosen, what was on the table instead, and what the choice made permanent.

  1. 01 1952–1955

    Form a state association and stage an all-Arabian show at the Arizona Biltmore rather than keep showing in open-breed events.

    Held in place by Habit

    Instead, it could have
    Remain a loose circle of breeders exhibiting at the Casa Blanca Inn and in California.
    What it locked in
    A single annual February show became the club's reason for being, and the show's calendar still sets the Valley's winter horse season.
  2. 02 1957–1958

    Move the show onto Anne McCormick's ranch at Paradise Park, a purpose-built masonry arena with palm trees.

    Held in place by Relationships

    Instead, it could have
    Stay at the Biltmore or rotate among members' ranches.
    What it locked in
    The show grew to more than 300 horses from 39 states by 1961 and became, in Arizona Highways' words, 'the most important Arabian show in the United States' within six years; it also tied the club's fate to one family's land.
  3. 03 1979

    After eviction, build Paradise Park II on leased state land off Bell Road instead of leaving Scottsdale.

    Held in place by The people who depend on it

    Instead, it could have
    Move to Phoenix, Tucson or a California showground that already existed.
    What it locked in
    The show stayed a Scottsdale event through the 1980s boom, and the city noticed what it was worth.
  4. 04 1989

    Move the show to the city's HorseWorld, now WestWorld, built on Bureau of Reclamation flood-control land and run by a city contractor.

    Held in place by Law & contracts

    Instead, it could have
    Try to buy land and build a permanent private showground at the peak of the crash.
    What it locked in
    A public landlord with reasons to invest: the Equidome in 1987, the $51 million Tony Nelssen Equestrian Center in 2013, and a use agreement that runs, with extension, to 2033.
  5. 05 2015

    Sign a long-term contract with the city (2015-012-COS) covering the February show and the September Arabian National Breeder Finals.

    Held in place by Law & contracts

    Instead, it could have
    Year-to-year bookings that left both the show and the city exposed to a rival venue's offer.
    What it locked in
    The association became WestWorld's anchor tenant on paper as well as in fact, and the city's own economic studies now count its show at close to $100 million a year.

What it set out to do, and what it does

Mission since founding: Expanded. Grew into new work ahead of any documented need, usually following the money.

Then

Founded in August 1952 'to promote interest in the Arabian horse' (the association's own history of the Westward Ho meeting); the first show was the All-Arabian Horse Show.

Now

A nonprofit 'comprised of Arabian horse owners, breeders, and enthusiasts worldwide' with four stated aims: education on ownership and welfare, promotion of breeding and competition, opportunities for interaction, and preserving the Arabian horse and its heritage (scottsdaleshow.com, 2025).

The years it nearly ended

What threatened it, and what was given up to get through.

  • 1969–1970

    After Anne McCormick's death in May 1969 the club could not reach terms to stay at Paradise Park and moved the show to Kemper Marley's property at Bell and Tatum roads for two years before returning to the ranch in 1971.

  • 1978–1979

    On March 1, 1978, as the 24th show ended, Kaiser-Aetna, which had bought the McCormick ranch in 1970 for houses, gave the association notice to vacate. The club scrambled onto 85 acres of state land on Bell Road west of Scottsdale Road, built Paradise Park II and opened there in 1979, knowing the lease would not last.

  • 1986–1989

    The Tax Reform Act of 1986 ended the passive-loss shelters that had inflated Arabian prices to seven figures; registrations fell by more than 15,000 a year, farms failed and horses went to auction and to slaughter. The show that had drawn 2,460 horses in 1985 kept running, and in February 1989 it moved to the city's new HorseWorld, which gave it a home it did not own and could not lose.

The people behind it

Founders, the long servers, and the names that recur. Linked names have their own profile.

  • Edwin J. 'Ed' Tweed Founding president; Brusally Ranch breeder 1952
  • Hal Clay Founding vice president 1952
  • Dorothy Clyde Long Founding secretary-treasurer 1952
  • Anne McCormick Built Paradise Park, the show's home for two decades 1957–1969
  • Helen Wrigley Co-sponsor of the first show at the Biltmore 1955
  • Howard Keim K-Lin Corporation operator who built WestWorld's Equidome 1986–1993

Where it has been

Its homes, oldest first. Where the place has a guide on this site, the name links to it.

  1. 1952–1952

    Hotel Westward Ho, Phoenix (founding meeting)

    618 N Central Ave, Phoenix

  2. 1954–1956

    Arizona Biltmore arena

    2400 E Missouri Ave, Phoenix

  3. 1957–1978

    Paradise Park, McCormick Ranch

  4. 1979–1988

    Paradise Park II

    Bell Road west of Scottsdale Road

  5. 1989 – today

    WestWorld of Scottsdale

    16601 N Pima Rd

Connected guides on this site

The people on its boards, the places it built or runs, and the rules it works under.

Its decades 1950s1960s1970s1980s1990s2000s2010s2020s

Arabian Horse Association of Arizona by the numbers

August 1952

Founded

Arizona Biltmore, mid-1950s

First show

February 1989

At WestWorld since

2,400+

Horses today

The timeline

  1. 1952

    Arabian owners meet in August at the Hotel Westward Ho in Phoenix, form the Arabian Horse Association of Arizona and elect Ed Tweed of Brusally Ranch president, with Hal Clay vice president and Dorothy Clyde Long secretary-treasurer; early exhibitions are held at the Casa Blanca Inn.

  2. 1954–1955

    The first All-Arabian Horse Show is staged at the Arizona Biltmore arena, the Wrigleys' hotel, sponsored by Helen Wrigley, the McCormicks and Tweed; the association is incorporated in 1955 and the show becomes an annual February event from 1956.

  3. 1957–1958

    The show moves to Paradise Park, the walled arena Anne McCormick built on her ranch; Arizona Highways calls it the country's most important Arabian show by 1962.

  4. 1963

    Anne McCormick imports the Russian-bred stallion Naborr and Tweed brings fourteen Polish and three Russian Arabians to Brusally Ranch, making Scottsdale the center of the Polish-Arabian trade.

  5. 1969–1971

    Anne McCormick dies on May 25, 1969; unable to agree on terms, the club holds the 1969 and 1970 shows on Kemper Marley's land at Bell and Tatum, then returns to the ranch in 1971.

  6. 1978–1979

    Kaiser-Aetna serves notice to vacate on March 1, 1978; the club builds Paradise Park II on 85 acres of state land on Bell Road and opens there in 1979.

  7. 1985–1986

    Entries peak at 2,460 horses as Arabian prices reach seven figures on tax-shelter money; the Tax Reform Act of 1986 ends the passive-loss deductions and the market collapses.

  8. 1989

    The show moves in February to the city's HorseWorld, renamed WestWorld in 1990, the same winter Barrett-Jackson arrives.

  9. 2013–2015

    The city opens the $51 million Tony Nelssen Equestrian Center in November 2013; on January 13, 2015, the council approves a contract with the association running from 2014 to 2023 with a ten-year extension option.

  10. 2025

    The 70th show draws more than 2,400 horses and $3 million in prize money; the city's consultants put the show's local impact near $100 million a year.

Questions people actually ask

Who runs the Scottsdale Arabian Horse Show?

The Arabian Horse Association of Arizona, a volunteer-run nonprofit of Arabian owners, breeders and enthusiasts founded in 1952. It produces the February show and the September Arabian National Breeder Finals at WestWorld under a long-term agreement with the City of Scottsdale, which owns the grounds.

When was the Arabian Horse Association of Arizona founded?

The club dates itself to a meeting at the Hotel Westward Ho in Phoenix in August 1952, with Ed Tweed as first president, and was incorporated in 1955. Its first all-Arabian show at the Arizona Biltmore is dated 1954 by the association and 1955 by most other accounts; the show's numbering counts from 1956.

Where was the Arabian show held before WestWorld?

At the Arizona Biltmore for its first year or two, then on Anne McCormick's ranch at Paradise Park from the late 1950s until 1978, with a two-year stint on Kemper Marley's property at Bell and Tatum in 1969 and 1970. After Kaiser-Aetna's eviction notice the club built Paradise Park II on Bell Road, used from 1979 through 1988, and moved to WestWorld in February 1989.

What happened to Arabian horse prices in the 1980s?

Breeding operations became tax shelters, and prices for top horses reached the millions: the mare NH Love Potion sold for $2.55 million in 1984 and the stallion Padron was syndicated for $11 million. More than 100,000 Arabians were registered between 1982 and 1986. The Tax Reform Act of 1986 ended the passive-loss deductions, the market collapsed, and registrations fell by more than 15,000 a year into the early 1990s.

Can anyone join the Arabian Horse Association of Arizona?

Yes. Membership is open to owners, breeders and enthusiasts, and the club has grown from about a dozen members at its founding to several hundred. Members volunteer at the February show and smaller shows during the year; details and dues are on scottsdaleshow.com.

The record, and its holes

Where the facts come from, and what we looked for and could not find. A missing record is a finding, not an apology.

What we couldn’t find

  • The founding date is contested even by the club's own pages: the association's history dates the first meeting to August 1952 and the first show to 1954 with 102 horses, while the show's own marketing, Wikipedia and this site's event guide give 1955 and about 50 horses from twelve farms. The show's numbering (the 70th in 2025) counts from 1956. This profile uses 1952 for the club and notes the conflict.
  • No incorporation papers, bylaws or early minutes are online; the 1955 incorporation date comes from secondary summaries and the IRS ruling is dated May 1972. Not public
  • Attendance and economic-impact figures ($52 million, $98 million, 300,000 visitors) come from the association, the city and consultants, not independent audits, and they measure different things in different years.
  • The record of the 1986 crash is national. We found no account of how many Scottsdale farms failed, how entries changed in 1986 to 1988, or how the club's own finances fared, beyond the 1985 peak of 2,460 horses. Never written down
  • The association's history gives 1957 to 1978 for the show's years on McCormick land, with 1969 and 1970 at Kemper Marley's property; this site's McCormick profile says Paradise Park hosted shows through 1968. We follow the association here.

Sources

Vernacular & LexiconThe Arabian Horse ShowBell Road / Frank Lloyd Wright BoulevardState Trust LandMcCormick RanchBed tax (and the tourism fund)ASUBarrett-JacksonThe CAP

Facts checked: October 2, 2026 • Curated by the Scottsdale.tips editors • Written from the organization’s own records, the press and the archives; boards, budgets and names change. Corrections are welcome.