The Megahertz Stakes is a Grade III American Thoroughbred horse race for fillies and mares that are four years old or older, over a distance of 1 mile on the turf held annually in January at Santa Anita Park, Arcadia, California. The event currently carries a purse of $100,000.

History The race was inaugurated in 2011 and the event was run over the 1 mile distance.

The event is named in honor of the British mare Megahertz (GB) who was trained by the National Museum of Racing and Hall of Fame trainer Robert J. Frankel. Megahertz won two Grade I events including the 2005 Yellow Ribbon Stakes which was run at Santa Anita Park and the GII Santa Barbara Handicap twice (2003–2004).

In 2016 the event was upgraded to a Grade III event.

Records Speed record: 1 mile: 1:33.09 - A Jealous Woman (2013)

Margins: lengths – (2012)

Most wins by a jockey: 2 – Flavien Prat (2019, 2024)

Most wins by a trainer 2 – John Shirreffs (2016, 2020) 2 – Neil D. Drysdale (2012, 2018) 2 – Philip D'Amato (2015, 2024) 2 – Doug F. O'Neill (2014, 2026)

Winners Year Winner Age Jockey Trainer Owner Distance Time Purse Grade Ref2026 Princesa Moche (PER) 6 Mirco Demuro Doug F. O'NeillRancho San Roberto 1 mile1:36.09$102,000III2025 Rashmi 5 Frankie Dettori Jonathan Thomas Augustin Stables 1 mile 1:34.19$101,000III2024 Bellabel (IRE) 5 Flavien Prat Philip D'Amato Agave Racing Stable, Benowitz Family Trust, CYBT, Michael Nentwig & Ray Pagano 1 mile 1:36.16$101,000III2023 Quattroelle (IRE) 5 Hector Berrios Jeff Mullins Red Baron's Farm and Rancho Temescal 1 mile 1:35.04$101,000III2022 Canoodling 4 Roimes Chirinos Mike Puype B4 Farms 1 mile 1:37.30$101,000III2021 Mucho Unusual 4 Joel Rosario Tim Yakteen George Krikorian 1 mile 1:35.89$98,000III2020 Carressa 4 Victor Espinoza John Shirreffs Mercedes Stables, West Point Thor., S. Dilworth, D.&D. Ingordo & S.F. Mooney 1 mile 1:34.64$101,000III2019 Vasilika 5 Flavien Prat All Schlaich Stables, Hollendorfer, Gatto Racing, & G. Todaro 1 mile 1:34.82$100,351III2018 6 Neil D. Drysdale Gainesway Stable 1 mile 1:34.24$100,690III2017 Prize Exhibit (GB) 5 Mike E. Smith D P Racing 1 mile 1:35.56$100,690III2016 Keri Belle 5 Alex O. Solis John Shirreffs Mr. & Mrs. Jerome S. Moss 1 mile 1:36.30$101,750III2015 Fanticola 5 Martin Garcia Philip D'Amato Anthony Fanticola & Josep Scardino 1 mile 1:35.11$81,250 Listed 2014 Dancingtothestars 6 Mario Gutierrez Doug F. O'Neill Ren-Mar Thoroughbred 1 mile 1:33.77$91,000 Listed 2013 A Jealous Woman 7 Brice Blanc Francis Meza Three Cent Stable 1 mile 1:33.09$92,500 Listed 2012 5 Joseph Talamo Neil D. Drysdale Robert S. Evans 1 mile 1:34.95$78,500 Listed 2011 It Tiz 4 David R. Flores Mark Glatt Allen & Susan Branch 1 mile 1:34.83$79,150 Listed

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