JK
John KRONFORST
Birth date-
Height-
Weight-
John KRONFORST is a United States middle-distance runner. He competes primarily in the Mile, 3000m and 5000m.
His personal bests include 4:11.15 in the Mile, 8:21.40 in the 3000m, 14:28.62 in the 5000m, 9:11.08 in the 3000mSt and 8:21.40 in the 3000m-short-track. He is currently active on the international athletics circuit, representing United States.
Key facts
Mile Short Track
4:13.27
3000 Metres Short Track
8:21.40
As of Sep 14, 2026: Mile Short Track 4:13.27, 3000 Metres Short Track 8:21.40, 2003 season best 8:33.76 (Jan 18, 2003)
PB
Personal bests
4:11.15
8:21.40
14:28.62
9:11.08
8:21.40
4:13.27
14:28.62