Personal Records Personal Records
Event Mark State National Date
600m 1:27.94 #698 Jan 23, 2026
800m 1:55.98 #1,375 May 30, 2026
1000m 2:39.35 #537 Feb 7, 2026
1600m 4:33.22 #6,747 May 12, 2026
5K 16:51.44 #13,996 Sep 20, 2025
600m 1:27.94 #698 Jan 23, 2026
1000m 2:39.35 #537 Feb 7, 2026
1600m 4:38.03 #2,255 Jan 31, 2026
1 Mile 4:46.30 #2,605 Jan 9, 2026
800m 1:55.98 #1,375 May 30, 2026
1600m 4:33.22 #6,747 May 12, 2026
5K 16:51.44 #13,996 Sep 20, 2025
See where Duncan ranks State & National rankings, available to MileSplit PRO subscribers. Join MileSplit PRO
Results Results

To see all performances, subscribe to

MileSplit Logo
Join Now

Already a Pro member?

2026 - Outdoor

800 Meter Run

1600 Meter Run

2026 - Indoor

600 Meter Run

1000 Meter Run

1600 Meter Run

One Mile Run

2025 - Cc

5000 Meter Run

2025 - Outdoor

800 Meter Run

1600 Meter Run

2024 - Outdoor

1600 Meter Run

College Progression Tracker

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