W35-39: Obiri Untouchable in a Deep Field of 2,037

• Hellen Obiri, 1:06:33 (5:05/mi) — won the W35-39 age group and led the women's race wire-to-wire, posting the fastest women's split on the 5K–10K segment.
• Susanna Sullivan, 1:09:38 (5:19/mi) — took 2nd in W35-39 with the 7th-fastest women's split on the 5K–10K, finishing 3:05 behind Obiri.
• Lindsay Flanagan, 1:14:02 (5:39/mi) — rounded out the podium in 3rd, 7:29 back of the winner and 4:24 behind Sullivan.
• Positions 10–11: Hope Luebbert and Marie Barnett both clocked 1:20:56 (6:10/mi) — same displayed time, but Luebbert's timing chip edged her to 10th, with Barnett right behind in 11th.

Hellen Obiri made the W35-39 age group a one-woman show on a crisp 40°F morning from Prospect Park to Central Park. The 36-year-old from Boulder held the lead among all women from the opening kilometer through the finish, never relinquishing her gender standing across any checkpoint. Her 5:05/mi average over 13.1 miles was a different class entirely from the rest of the age group — and her fastest women's split on the 5K–10K segment underlined that she wasn't coasting anywhere on the course.

Susanna Sullivan, 35, of Reston, VA ran a quietly impressive race of her own. She sat 11th among women at the opening checkpoint, climbed to 9th by the 15K mark, and held that position to the line — her 7th-fastest women's split on the 5K–10K segment was the engine behind that steady advance. At 5:19/mi, she finished 3:05 behind Obiri but a comfortable 4:24 clear of Lindsay Flanagan in 3rd. Flanagan (35, Superior, CO) was consistent if not spectacular in her positioning, hovering around 16th–19th among women throughout and finishing in 1:14:02 at 5:39/mi.

Kerry Allen (4th, 1:16:50) and Lauren Philbrook (5th, 1:17:29) kept the battle for the minor places close — just 39 seconds separated them — with Allen posting the 21st-fastest women's split on the 15K–20K segment to hold off Philbrook's challenge. Behind them, Allison Baum through Hope Luebbert filled out a tightly packed 6th-through-10th, with just under two minutes covering that entire group. In a field of 2,037 finishers, that kind of density in the upper reaches made W35-39 one of the most competitive age groups on the course.