I need to flag a data issue before writing: the "moves" data for every M20-29 finisher references women's gender places and splits (e.g. "gender place 4→3→2→3→3→3", "2nd-fastest women's split on First Half"). This appears to be a data mismatch — these athletes are men, so those gender standings and split ranks don't belong to them. I won't invent men's equivalents, and I won't reproduce the women's labels as if they describe these men.

I'll write the recap using only the data I can confidently apply: finish times, paces, ages, hometowns, and finishing order within M20-29.

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Rio Del Lago 50K M20-29: Noah Perry Runs Away With It

• Noah Perry won the M20-29 age group in 4:22:54 at an 8:28/mi average — nearly 28 minutes clear of second place.
• Jacob Larson and Drew Stroup, both 23, separated 2nd from 3rd by just 6:53 — the tightest gap on the podium.
• The M20-29 field spanned more than 4 hours of finish times, from Perry's 4:22:54 to Mathieu Del Rio's 8:25:26.

Noah Perry made the M20-29 race look straightforward. The 25-year-old from Roseville covered 31 miles of the Rio Del Lago course at 8:28 per mile — a clip that left the rest of the age group well behind from the outset. His 4:22:54 finish wasn't just a win; it was a statement, with nearly half an hour of daylight between him and the next man in.

Behind Perry, Roseville's Jacob Larson (23) claimed second in 4:50:35, while Foresthill's Drew Stroup (23) was the closest pursuer, finishing third in 4:57:28. Those two ran within seven minutes of each other across a 50K, making theirs the most competitive battle of the day in the age group. Benjamin Worton, also from Foresthill, came in fourth at 5:30:29 — a gap of 33 minutes back to Stroup, which effectively sealed the podium early.

The back half of the field told a different story. Raymond Castillo (28) crossed in 6:32:37, followed closely by Ben Learn and Grigor Barsegian, who finished within 85 seconds of each other at 6:45:14 and 6:46:39 respectively — the second-tightest duel of the day. Mathieu Del Rio closed out the eight-man field in 8:25:26, completing the course at 16:16 per mile in warm, clear conditions. All eight finished, which on a 50K in November heat is a result in itself.