Marathon Handbook simulated the 2026 New York City Marathon using age-graded scores. Edna Kiplagat, 46, achieved the best performance, finishing 54th with a time of 2:25:42.

Age grading adjusts a runner's finish time based on their age and sex, comparing it to the best possible performance for that demographic. Kiplagat's score of 99.77 percent was the highest of the day. Read more culture coverage.

The rerun showed Kiplagat finishing first, with Andreas Almgren, who won the actual race, placing second. Age grading highlights performance relative to potential, not just speed. Related: 7-Year-Old Sets Half-Marathon Age Record for Second Year.

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