BOULDER — In 26 days, Boulder woman Laura Knoblach finished the equivalent of 20 Ironman Triathlons and set a world record for a Double Deca Ultra Triathlon last week in León, Mexico. After swimming 48 miles in a pool (yes, a swimming pool), biking 2,240 miles in 4.3-mile laps and running 524 miles in 1.3-mile laps at León’s Metropolitan Park — add it all up and it equals the driving distance from Denver to Atlanta and back — Knoblach finished in 633 hours, 41 minutes and 39 seconds.