Betting On OTB Colorado Online

As of 2025, horse racing in Colorado is centered on Arapahoe Park, located in the Denver suburb of Aurora. The track’s live season showcases Thoroughbreds, Quarter Horses, and Arabians, with a stakes calendar highlighted by the Mile High Futurity for two-year-old Quarter Horses, the Mile High Derby for three-year-old Quarter Horses, and the Gold Rush Futurity for two-year-old Thoroughbreds. Beyond the track itself, fans can also enjoy year-round wagering through off-track betting (OTB) facilities across Colorado, making it easy to follow and bet on races statewide and nationwide.

OTB Colorado Betting Sites

With today’s online racebooks and betting apps, horseplayers can jump into the action anytime, anywhere—whether on a computer, tablet, or phone. These platforms are built to be safe, secure, and effortless to use, giving you instant access to races at Arapahoe Park and tracks across the globe. On top of that, they deliver market-leading odds and exclusive bonuses you simply won’t find at the racetrack.

Here are the best sites for betting horse racing in Colorado:

Colorado Race Tracks

As of 2025, Colorado’s live horse racing scene is centered on a single venue: Arapahoe Park in Aurora. The track continues to host competitive meets featuring Thoroughbreds, Quarter Horses, and Arabian horses.

Arapahoe Park opened in 1984 after the previous racetrack in Colorado, Centennial Race Track, closed in 1983. However, the track was only open for a season before it went bankrupt and closed. Luckily for horse racing in Colorado, Arapahoe was not torn down after it closed. In 1992 it was purchased by new ownership, renovated, and reopened for live racing.

Arapahoe traditionally held its live racing season from late spring through the summer. However, in 2024 the meet was shifted to the fall due to extensive backstretch renovations. For 2025, the schedule remains in the fall, with live racing set from September 12 through November 16, striking a balance between the track’s historic summer calendar and last year’s delayed meet.

Colorado Horse Races

The signature Thoroughbred event at Arapahoe Park is the Gold Rush Futurity, a six-furlong sprint for two-year-olds that attracts contenders from beyond Colorado’s borders. Alongside it, the track hosts a series of Colorado-bred stakes that spotlight the state’s homegrown Thoroughbreds.

For Quarter Horses, the highlights of the calendar include the Mile High Futurity for two-year-olds and the Mile High Derby for three-year-olds, each featuring trials and finals that draw competitive fields from across the region. Earlier in the fall meet, Arapahoe also stages the Rocky Mountain Futurity and Rocky Mountain Derby, complemented by a full program of Colorado-bred and Colorado-preferred stakes for Quarter Horses of all ages.

Major stakes for Arabian horses in Colorado include the Emirates Breeders Arabian VIP Stakes and Emirates Breeders Arabian VIP Distaff.

Off Track Betting in Colorado

Horse racing and pari-mutuel wagering in Colorado are regulated by the Division of Racing Events, part of the Colorado Department of Revenue. In addition to live and simulcast wagering at Arapahoe Park in Aurora, there are 10 licensed off-track betting (OTB) facilities across the state that accept simulcast wagers year-round. Horse racing fans can gather at these venues to wager not only on local races but on tracks everywhere via simulcast.