M20-24: Kidanu dominates a scorching Boston morning

• Tsegay Kidanu, 21, wins in 28:18 — a 4:33/mi clip through 85°F heat — holding the men's field lead from start to finish.
• 36-second gap to 2nd: Wesley Kiptoo (28:54, 4:39/mi) held 8th among men throughout and never threatened the front.
• Marcelo Rocha climbs to the podium: 18th among men at the opening checkpoint, he worked his way to 12th by the finish — including the 6th-fastest men's split on the 8K-to-finish stretch in the field.
• JP Flavin and Erik Linden rounded out the top five at 30:27 and 31:23, with Linden posting the 24th-fastest men's closing split in the field.

In a field of 309 in the M20-24 age group, on a morning that pushed 85°F with thick humidity, Tsegay Kidanu made it look controlled. The 21-year-old led among men from the gun, sat 4th among men through the 5K checkpoint, and never slipped. His 28:18 — 4:33 per mile — was the kind of performance that commands a race rather than just wins it, and the 5th-fastest men's split between 5K and 8K in the field underscored that he wasn't coasting through the back half either.

Behind him, Wesley Kiptoo was a model of consistency — 8th among men at every checkpoint, 8th at the line, 28:54 on the clock. Solid, unwavering, and 36 seconds adrift. The real mover in the top five was Marcelo Rocha, who spent most of the race buried in the pack. Starting outside the top 15 among men, the 24-year-old chipped away steadily and finished 3rd in M20-24 at 29:33, his 6th-fastest men's split on the final 8K-to-finish segment doing the heavy lifting.

JP Flavin (30:27) and Erik Linden (31:23) were rock-steady in their own right — 19th and 26th among men at the finish, respectively — before a significant gap opened to Ben Burgess in 6th at 34:26. From there, a tight cluster of Boston-area runners filled out the top ten, with Christopher Kimball (35:07) and Roman Silen (35:21) separated by just 14 seconds in 8th and 9th. On a day that punished anyone who went out too hard, the M20-24 age group delivered a clean, well-paced front end.