M20-29 at Way Too Cool 50K: Riedel Dominates, Hefner Holds Firm

By MyRace AIMarch 7, 2026
  • Sean Riedel won the M20-29 group in 3:37:18 (6:60/mi), leading among men from the first checkpoint to the last and posting the fastest men's split on the Fire Station→Quarry segment.
  • Jayson Hefner ran a composed race to claim 2nd in 3:55:31, sitting 5th among men at the opening checkpoint and never wavering — he held that position through every subsequent split, also logging the 6th-fastest men's split on the ALT→Goat Hill leg.
  • Nick Muzik made the most notable move of the day, climbing from 16th among men at the midpoint all the way to 13th by the finish to secure 3rd in 4:28:03.
  • The gap from 1st to 13th spanned over 4 hours, with Derek Sivillo rounding out the 13-man field in 7:44:54.

Sean Riedel was never seriously challenged. The 27-year-old from Santa Cruz led among men at every single checkpoint, running 31 miles of Northern California trail at a 6:60/mi average — a pace that left the rest of the M20-29 group in a different race entirely. His fastest-men's-split on the Fire Station→Quarry stretch underscored that this wasn't a survival run; it was a controlled statement of intent from wire to wire.

Behind him, Jayson Hefner was the picture of consistency. The Fairfield native settled into 5th among men early and simply refused to be moved — forward or back — across all six checkpoints. His 3:55:31 finish, nearly 18 minutes back of Riedel, was earned through discipline rather than drama. Nick Muzik, meanwhile, provided the group's most interesting subplot: the Reno-based 29-year-old was bouncing between 13th and 17th among men through the middle miles before finding another gear on the Goat Hill→HWY 49 segment — where he posted the 9th-fastest men's split — and ultimately locking in 3rd in 4:28:03.

Christian Klahn rounded out the podium in 4th with a 4:44:23, while Nate Challis and the rest of the field navigated the back half of the day at paces ranging from 10:31 to nearly 15 minutes per mile. All 13 starters crossed the line — no small thing over 31 miles of Cool terrain — with Derek Sivillo's 7:44:54 closing out the M20-29 story just under eight hours after Riedel had already called it a day.

AI recap · generated from official results

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