Personal Records Personal Records
Event Mark State National Date
600m 1:48.94 #7,314 Jan 9, 2026
800m 2:27.64 #15,859 Jan 23, 2026
1000m 3:19.46 #8,759 Dec 12, 2025
1600m 5:37.34 #18,750 Jan 2, 2026
600m 1:48.94 #7,314 Jan 9, 2026
800m 2:27.64 #15,859 Jan 23, 2026
1000m 3:19.46 #8,759 Dec 12, 2025
1600m 5:37.34 #18,750 Jan 2, 2026
See where Cooper ranks State & National rankings, available to MileSplit PRO subscribers. Join MileSplit PRO
Results Results
PRO

See all 6 of Cooper Duff’s results

Full performance history, included with MileSplit PRO.

Subscribe to view results

2026 - Indoor

600 Meter Run

800 Meter Run

1000 Meter Run

1600 Meter Run

College Progression Tracker

Your 1600m performance is better than XX% of Division I athletes when they were Senior in high school.