November 16, 2025

The Oilman Texas Triathlon is southeast Texas' favorite locally-produced Half Iron Distance Triathlon. New last year was the Sprint distance triathlon, offering more options to more athletes. Our field limit for 2025 is pending parking and resort booking, and will be announced in September, but as of August we DO foresee selling out, especially the Sprint.

Half distance athletes will enjoy a 1.2 mile swim in Lake Conroe, 56 mile bike in scenic Montgomery County, and a 13.1 mile run all starting and ending at the beautiful Margaritaville Lake Resort Lake Conroe!  The Sprint distance will include a 500 meter swim, 11 mile bike and a 5k run through the Margaritaville neighborhoods and golf course.

NEW: For 2025, we will be adding a 5K and Kids Duathlon on Saturday morning, along with the funnest not-triathlon you will ever ‘race’ - the 5 O’Clock Somewhere Pool Tri (limited to resort guests and day pass holders).

Come Join Us!

WHAT TO EXPECT

Half-Iron Distance Triathlon:

1.2 Mile Swim, 56 Mile Bike, 13.1 Mile Run

The Oilman Half-Iron Distance Triathlon consists of a 1.2 mile open-water swim in Lake Conroe; a 56 mile bike through scenic Montgomery county, and a 13.1 mile run, all starting and ending at the beautiful Margaritaville Resort at Lake Conroe.

The Swim: Typically wetsuit legal; the swim features a beach lagoon time-trial start and a roughly triangular course with a ladder exit to transition. Wetsuit strippers assist with wetsuit removal.

The Bike: The course is essentially one large loop in Montgomery County. Athletes will repeat the first few miles of the course while beginning and finishing the route. The course itself winds through portions of the national forest, and features rolling hills with plenty of flats to recover.

The Run: The run course features multiple loops of both the front and back nines of the Margaritaville Golf Course. The vast bulk of the course takes place on protected golf cart paths and winds through various portions of the resort and adjacent neighborhood’s surface streets.

Please Note: The Aquathon option eliminates the run portion of the event, but is identical otherwise.

WHAT TO EXPECT

Sprint Distance Triathlon:

500 Meter Open Water Swim, 11 Mile Bike, 5K Run

The Oilman Sprint Distance Triathlon consists of a 500 meter open-water swim in Lake Conroe; an 11 mile bike through scenic Montgomery county, and a 5k run, all starting and ending at the beautiful Margaritaville Resort at Lake Conroe.

The Swim: Typically wetsuit legal; the swim features a beach lagoon time-trial start and a one-turn course with a ladder exit to transition. Wetsuit strippers assist with wetsuit removal.

The Bike: The course is an out and back that shares the road with the initial portion of the Half-Iron distance course. The course itself features an even mix of a few rolling hills and flats.

The Run: The run course takes place on portions of the Margaritaville Golf Course on protected golf cart paths, and winds through various portions of the resort and adjacent neighborhood’s surface streets.

NEW: Saturday Races (5K, Kids Duathlon, 5 O’clock Somewhere Fun Tri)

New this year, we’re bringing in some fun activities for the whole family to encourage you to come out and spend the weekend with us!

On Saturday November 15th, Join us for:

7:00am - Family 5K

8:00am - Kids Du (Parakeets) - .6 Mile run, 1.6 Mile Bike, .5 Mile Run

8:25am - Kids Du (Parrots) - 1 Mile Run, 3 Mile Bike, .9 Mile Run

5:00pm - Join us for the best pool party with a triathlon twist, the 5 O’Clock Somewhere “Fun Tri” - Resort guests and day pass holders can dodge dangerous animals, barrel around like a race car driver, and slide their way into a beach front party at Land Shark Grille. Joined by America’s best race announcers, Fitz Koehler and SkaiLive