370 Lakeside Triathlon
6:45 AM startOpen water swim

from $30
RegisterSaint Peters triathlons
1 upcoming triathlon in Saint Peters, listed by date with entry fees from race registration.
6:45 AM startOpen water swim

From 9 triathlons with official results in the last two years, 783 finishers in all. Saint Peters has too few scored triathlons for its own numbers, so these cover all of Missouri.
Entry for upcoming triathlons in Missouri usually runs from $75 to $118, with a typical fee of $95 before processing fees.
Typical times are the middle finisher across these races, weighted by field size. School meets, stair climbs, and results with timing errors are left out.