Has anyone ever tried to structure a triathlon to present an equal challenge in all three segments?
It seems to me that the distances for each segment in triathlon are somewhat random. Yes, I know the history of where the ironman distances came from, and I assume somebody put some thought into the distances for the Olympic structure. But it seems to me that those distances were established based on “challenging” distances in the individual sports of running, biking, and swimming, and not based on creating an equal challenge in all three.
I would like to see an “equal challenge” triathlon. The way I would do it would be to set up the distances so that the fastest athlete in each split turned in a time of about an hour. Here’s how I figure it, using the pacing for male competitors:
**Swim: **In olympic distance races, the fastest male swim split seems to be around 14 min, which translates to about a 15:30 mile pace. I doubt that they could keep up that kind of pace for an hour. In the USMS 1 hour postal championship, the winning men seem to swim 5800 yards or more, which is 3.2 miles, but that’s in a pool and they don’t have to do the other segments. In Ironman distance races, the fastest swimmers come out in 48 minutes, with variations depending on the course, which comes out to exactly 3 miles/hr pace. So I’d set this distance at 3 miles. Makes for a nice triangular course if you have a big lake.
**Bike: **Fastest cyclists in non-draft olympic races seem to finish in 57-58 minutes, which is 25.7 miles per hour. Fastest half-ironman times seem to be around 2:25, which is 23.2 mph. 25 miles seems to be the right distance for a 1 hour winning split, especially since a 3 mile swim would take a greater toll than a 1500 meter swim.
Run: The fastest nonpro runners in olympic distance triathlons seem to turn in about a 6 min/mile pace. The fastest nonpro runners in half-ironman races also seem to turn in a 6 min mile pace. Some of the pros can go a little faster, although not many. Using a 6 min pace leads to a nice, even 10 mile run segment.
So how about a triathlon that’s a 3 mile swim, 25 mile bike, and 10 mile run?
Lee