Kenya's David Cheruiyot won the Houston Marathon in an unofficial time of 2:12:31, his third win in the race.
Ethiopia's Dire Tune set a record — 2:24:39 — in the women's event, breaking her own mark of 2:26.
Cheruiyot pulled clear of Ethiopia's Kasime Adilo over the last 400 meters of the 26.2-mile race.
Penn State grad James Carney won the Houston half-marathon, also the USATF national championship, with a time of 1:02:21.
Kate O'Neill ran 1:11:57 to take the women's title.Carney's pace was 4:46 per mile while O'Neill averaged 5:30 for the event.