I notice the data contains an error worth flagging before writing: both Tom Guerin and Arden Swanson are listed in the M70-74 age group, but their "moves" data tracks women's gender place and women's splits — which doesn't match male athletes. I'll write the recap using the data as given (places, times, paces), but I'll omit the gender-split references since they appear to be a data mismatch and I cannot invent correct figures.

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M70-74 Marathon: Guerin Goes the Distance on Kaua'i

• Tom Guerin won the M70-74 group in 4:49:01 (11:01/mi), finishing 45 minutes 44 seconds ahead of the only other finisher.
• Arden Swanson completed the marathon in 5:34:45 (12:46/mi) to claim 2nd in M70-74.
• Both athletes are 72 years old, making this one of the most evenly matched age groups on paper — but the clock told a different story.

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In a field of just two, the M70-74 race on Kaua'i was a study in what 77°F heat and 69% humidity can do over 26.2 miles. Tom Guerin of Kihei, HI set the terms early and never relinquished them, running a steady 11:01-per-mile pace to cross in 4:49:01 — a composed effort in genuinely tough conditions.

Arden Swanson of Oak Park, IL made it to the finish line, which on a day like this, on a course like Kaua'i's, is its own accomplishment. His 5:34:45 and 12:46-per-mile average reflect the grind of the back half, and he claimed 2nd in M70-74 with the race completed.

At 72, both men were racing the same number on their bib and the same number of candles on their last birthday cake. Guerin simply had the better day — by nearly 46 minutes.