Vinny Mauri, 25, was on pace for a record-breaking finish at the Chicago Marathon. For the first 30 kilometers, he was ahead of the American record set by Conner Mantz. Mauri's time of 1:28:15 at 30K suggested a potential finish of 2:04:07.

Despite slowing in the final 12 kilometers, Mauri finished 10th in 2:06:45. He was the third American to cross the line, behind Clayton Young and Charles Hicks. Mauri's performance marked his second marathon, following a win at Glass City. Read more culture coverage.

Mauri's first marathon win in Toledo was the fastest by an American. His Chicago performance, though slower, showed his potential against a competitive field. His 2:06:45 finish was 51 seconds slower than his debut. Related: Charles Hicks Aims for First American Finish in Chicago Marathon.

This original Runner World brief is based on reporting from Marathon Handbook. Visit the source for its complete reporting, context and any later corrections.