SF Half Marathon NB25-29: Alexandra Ruiz Owns the Field

• Sole finisher and winner: Alexandra Ruiz, 26, Emeryville, CA — 2:15:20 (10:19/mi)
• Consistent women's field presence: held 3rd among women from start to finish
• Standout split: 3rd-fastest women's split on the 2.2M→5.7M segment

Alexandra Ruiz was the NB25-29 field — all of it — crossing the line in 2:15:20 at a 10:19/mi pace to claim the win by default and by merit. Racing solo in your division doesn't make the effort any less real, and Ruiz made hers count.

What stands out is how she positioned herself in the broader women's race. Ruiz held 3rd among women from the opening miles all the way to the finish line — a steady, unflinching performance with no drift and no fade. She didn't just survive the field; she sat comfortably in the top tier of it for the entire 13.1 miles through San Francisco's foggy, humid morning.

Her best moment came on the 2.2M→5.7M stretch, where she posted the 3rd-fastest women's split on that segment. In a race where the women's field was far larger than her one-person NB25-29 cohort, that kind of pace relative to the whole field is the real measure of what she brought to race day. Ruiz ran a complete, composed half marathon — and she ran it well.