Personal Records Personal Records
Event Mark State National Date
100m 10.54 #479 Apr 10, 2026
150m 16.60 Feb 25, 2026
200m 21.15 #195 Apr 10, 2026
300m 36.73 Feb 16, 2026
400m 49.02 #1,357 Apr 21, 2026
100m 10.54 #479 Apr 10, 2026
150m 16.60 Feb 25, 2026
200m 21.15 #195 Apr 10, 2026
300m 36.73 Feb 16, 2026
400m 49.02 #1,357 Apr 21, 2026
See where Jonathon ranks State & National rankings, available to MileSplit PRO subscribers. Join MileSplit PRO
Results Results
PRO

See all 32 of Jonathon Slack’s results

Full performance history, included with MileSplit PRO.

Subscribe to view results

2026 - Outdoor

100 Meter Dash

150 Meter Dash

200 Meter Dash

300 Meter Dash

400 Meter Dash

College Progression Tracker

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