F60-64: Guerrero rules the 60s on a blistering Chicago morning

• Angelica Guerrero won the F60-64 age group in 1:46:06 (8:06/mi), more than two minutes clear of runner-up Libby Harvey-Hill.
• Libby Harvey-Hill closed hard — her 214th-fastest split among women on the 15K-to-finish stretch helped her hold off Carolyn Sullivan by nearly three minutes.
• Susan Harrold was the age group's biggest mover, climbing from outside the top 680 among women at the start to 416th by the finish, powered by the 305th-fastest women's split on that same closing stretch.
• 66 women finished in the F60-64 age group on a demanding day: 79°F, 20 mph winds, and only 26% humidity.

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Angelica Guerrero — a Chicagoan racing on home streets — delivered the most controlled performance of the F60-64 field. She moved steadily through the women's race in the opening miles, cracking the top 175 among women by the halfway point before the heat and wind took their toll on pacing across the back half. Still, her 8:06-per-mile average held firm and her margin at the line told the full story: 2:02 over second place in conditions that punished anyone who went out too hard.

Libby Harvey-Hill started conservatively — she was 289th among women at the first checkpoint — but ran the second half of the race progressively better. Her finishing kick was one of the sharper ones in the age group, and she crossed in 1:48:08 to claim second. Carolyn Sullivan rounded out the podium in 1:51:06, her strongest segment coming between 8K and 10K, where she posted the 314th-fastest women's split on that stretch.

Ann Marie Phaneuf and Susan Harrold waged a quiet battle for fourth and fifth. Phaneuf held a positional edge through the middle miles but faded slightly; Harrold, meanwhile, was relentless in her pursuit. From well outside the top 680 women at the gun, she reeled in runner after runner and finished just 48 seconds behind Phaneuf at 1:53:51. Kayoko Hamamura rounded out the top six at 1:54:02, keeping it close through a field of 66 who earned every second on a genuinely tough Chicago morning.