COURSE
Rhoto Ironman 70.3 Boulder is a Long distance triathlon consisting of:
1.2 mile swim, 56 mile bike, 13.1 mile run.
* NOTE: Course details subject to change for reasons of safety and distance accuracy.
SWIM - 1.2 Miles
The swim will consist of one lap in the Boulder Reservoir.
The start will be from the left to right (or left /north west) side of the beach to the right (or south east) side of the beach.
BIKE - 56 Miles
The course starts at the Boulder Reservoir parking lot, heads south on 51st to Jay road and west to Highway 36.
Rolling along 36 north towards Lyons , the first aid station is at mile 6. Continue along 36 and turn east on St. Vrain Road .
Enjoy the smooth pavement downhill of St. Vrain Road to where it "t's" at 75th Street. Make a right on 75th, and continue all the way as it turns into 73rd.
We will make a right turn on Monarch Road (at IBM), going down Monarch for 0.6 mile before making a u-turn back to 73rd.
Once back at 73rd, make a right and continue to the Diagonal. This turnaround on Monarch will be done on both loops.
Head south west on the Diagonal toward Boulder , Right on Jay road, and continue on Jay for the second loop on the same route.
When you reach Jay and 51st after your second loop, make a right and return north on 51st street back to the Reservoir.
RUN - 13.1 Miles
The start is at the bike transition area on the south side of the Reservoir near the main pavilion.
Run west on the asphalt/gravel to the front gate.
Turn right and continue north on 55th Street, passing Monarch road, going about halfway to Niwot Road.
Turn around at the Turn-Around marker, go back to Monarch Rd. and turn left and head east on Monarch to the Canal Road entrance.
Pick up the canal road and head south around the Reservoir to the Transition area.
Runners will do two loops.