Masters Men: Chelanga Dominates Chicago 13.1 in Sub-64

• Sam Chelanga, 1:03:52 (4:52/mi): Won the Masters Men field outright — a full 6:08 clear of 2nd place.
• Luke Baltrusch, 1:10:00: Closed hard with the 21st-fastest men's split on the 8K–10K segment, moving from 26th to 21st among men to secure 2nd in Masters.
• Hector Zavala, 1:13:48: Faded from 24th to 38th among men across the back half, surrendering 4th place to Carlos Spallanzani's steady march through the field.
• Walter Martinez, 55, and Bob Geiger, 55: Led the 55-and-older contingent in 19th (1:23:52, 6:24/mi) and 20th (1:24:07, 6:25/mi) respectively, capping a deep top-20.

Sam Chelanga turned the Masters Men race into a solo time trial from the gun. Running 4:52 per mile across 13.1 miles, the 40-year-old from Fayetteville, NC, finished in 1:03:52 — a margin so commanding that 2nd place Luke Baltrusch, in 1:10:00, would have needed to run an entirely different race to threaten him. Chelanga also posted the 7th-fastest men's split on the 8K–10K segment in the entire men's field, a reminder that his pace wasn't just dominant among Masters — it was elite by any measure on the day.

Behind Chelanga, the battle for the podium had real drama. Baltrusch, a Chicago local, ran with purpose through the middle miles, posting the 21st-fastest men's 8K–10K split to climb from 26th to 21st among men and lock down 2nd in 1:10:00. Ben Bocher of Naperville finished 3rd in 1:12:01, his 26th-fastest men's split on the 15K-to-finish segment showing a strong close. Hector Zavala, meanwhile, had a different story: he was 24th among men at 8K but faded all the way to 38th by the line, finishing 4th in 1:13:48.

Carlos Spallanzani, 50, from León, Guatemala, was the quiet mover of the race — climbing steadily from 63rd to 54th among men to finish 5th in 1:16:11. Three Chicago locals — Nicolas Delgado (1:16:48), Thomas Shanabruch (1:17:04), and Angel Duchi (1:18:37) — rounded out the top eight, all age 45, making that cohort the backbone of the Masters field's middle tier. In a field of 1,644 Masters Men, the depth was real — and on a clear, comfortable 60°F morning in Chicago, the times reflected it.