Overall Time
1:27:56
Rank
#666
Age Group
#141 in AG
Overall Time
1:27:55
Rank
#664
Age Group
#35 in AG
Side-by-side percentile ranking within each athlete's division
Top-level times compared side by side (positive = first athlete is slower)
Time difference per split (positive = Jack Mazurek is slower)
Watch both athletes move through the course in real time, scaled to your chosen replay length.
Race Replay
Jack Mazurek
2025 Chicago
VS
Marshall Mattera
2025 Chicago
powered by rox-coach.com
Unlock your potential with our pace calculator tool.
Pace Calculator →