Triathlon Calendar United States 2025-2026

Holiday Classic Triathlon

Anthem, Arizona

Triathlon

Join the 25th Annual Anthem Holiday Classic in Anthem Arizona on Dec 13, 2025 for triathlon, aquabike and duathlon races featuring a heated pool swim, bike loops and a 5 km run. Chip timed with medals, hoodies and post race snacks.

Key West Triathlon

Key West, Florida

Triathlon

Ironman 70.3 Florida

Haines City, Florida

Triathlon

Join PLAYTRI IRONMAN 70.3 Florida in Haines City for a scenic lake swim, rolling bike and run courses around Lake Eva Park. Competitive and community friendly, this race offers on site bike rentals and pro support to get you to the start.

Tinsel Triathlon

Hemet, California

Triathlon

Dive into the festive 39th Annual Tinsel Triathlon in Hemet, CA on Dec 14, 2025, a reverse sprint tri that finishes in a heated 25 meter pool. Choose solo, relay, challenged athlete or 5K only and earn a Tinsel finisher medal.

20-21

Sa - Su

Raid the Rock Adventure Race

Little Rock, Arkansas

Multisport

Raid the Rock in Little Rock Dec 20 21 2025 offers 8 hour and 24 hour adventure courses that demand map and compass navigation plus trekking, mountain biking and paddling. Enter solo or as a team for a rugged challenge.

Wednesday

Corpus Christi Triathlon

Corpus Christi, Texas

Triathlon

January 2026

Jan

Tri Flake Winter Triathlon

Anchorage, Alaska

Triathlon

Take on snow, sweat and scenery at the Tri Flake Winter Triathlon in Kincaid Park, Anchorage. Race solo or as a team through a 6K run, about 13K of snow biking and a 6K skate ski before a stadium finish and winter celebration.

Jan

OSU Indoor Triathlon

Columbus, Ohio

Triathlon

Join OSU's Indoor Triathlon on January 25, 2026 for a time based indoor swim, bike and track run that doubles as a USAT Collegiate Nationals qualifier. Enjoy post race food, t shirts and prizes.

Jan

Mora Winter Triathlon

Mora, Minnesota

Triathlon

Join the Mora Winter Triathlon and Duathlon at Vasaloppet Nordic Ski Area in Mora MN on January 25, 2026. Tackle snowy trails with a 5 km run, a fat bike leg and a ski leg, or choose the run then ski duathlon for a bold winter challenge.

February 2026

Super Bowl Duathlon

Clermont, Florida

Duathlon

Hit Lake Louisa State Park on Feb 7, 2026 for the Super Bowl Duathlon, a run, bike, run event with sprint and super sprint options. USAT sanctioned with chip timing and a 130 participant cap for a fast, friendly race day.

Apex Adventure Race - SWFL

Venice, Florida

Multisport

Apex Endurance Challenge in Venice FL features trail races and multisport adventure events for solo or team entrants. Choose 50K or 25K trail races, or timed 4 Hour and 8 Hour courses combining biking, kayaking and trail running.

14-16

Sa - Mo

Susitna 100

Big Lake, Alaska

Multisport

Challenge yourself on winter trails near Big Lake, Alaska, with the remote Susitna 100 or the scenic Little Su 50K in February. Gear checks, live tracking, and a festive post race party keep the focus on safety and celebration.

Mt. Taylor Winter Quadrathlon

Grants, New Mexico

Multisport

Challenge yourself at the 43rd Mt Taylor Winter Quadrathlon on Feb 14, 2026 in Grants NM, a four discipline mountain race up to the 11,301 ft summit. Steep snowy climbs, sweeping views, aid stations and GPS tracking await.

Chilly Willy Duathlon

St. Petersburg, Florida

Duathlon

Kick off your season at the Chilly Willy Duathlon in Fort De Soto Park, St. Petersburg on Feb 15, 2026. Choose short or long courses, enjoy crisp coastal scenery, chip timed results, and a long sleeve finisher shirt.

Tri Faster Indoor Triathlon

Greenfield, Wisconsin

Triathlon

Take on a fast paced indoor triathlon at WAC in Greenfield. Short timed swim, spin and treadmill stages with waves of eight, prizes and postrace refreshments offer a fun winter challenge for ages 12 to 100.

19-21

Th - Sa

Florida ANVIL Ultra Triathlon

Clermont, Florida

Triathlon

The Winter Challenge Off-Road Triathlon

Springfield, South Carolina

Triathlon

Tackle an off road multisport challenge at Dome Farms near Springfield SC, featuring a trail run, flatwater kayak and mountain bike across scenic farm terrain. The event is now scheduled for February 21, 2026, with camping popular and refund options..

Frozen Hare 2

Broomall, Pennsylvania

Triathlon

Join the Frozen Hare final race on Feb 21, 2026 in Broomall PA at an outdoor heated 25 meter pool kept near 81F. Pick swim, run, triathlon or aquathlon courses, grab a race tee if you register by Feb 1 and enjoy on site parking.

Chilly Cheeks Duathlon

Greenwood Village, Colorado

Duathlon

Take on the Chilly Cheeks Duathlon in Englewood Colorado on Feb 21, 2026 with a crisp run bike run course of 2.5 miles 10.8 miles 2.5 miles. Chip timing, marshals and warm post race treats make this a fun winter challenge.