Preliminary results · 1,398 finishers · source dipsea.orgLoaded 16 Jun 2026 · preliminary results may change

Head-to-head

Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.

Athlete A

Official

Collin Atkinson

#560 · 1:02:21 · M34 · Group Y · DR

Wave start 8:50 AM (Y-DR)

Athlete B

Official

Zach Flanzman

#556 · 1:01:08 · M34 · Group Y · DR

Wave start 8:50 AM (Y-DR)

Comparison report

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Interpretation

Collin (Y-DR) started at 8:50 AM; Zach (Y-DR) started at 8:50 AM. Both left the line at the same moment. On foot, Collin ran 1:02:21 and Zach ran 1:01:08 — Zach was 1:13 faster than Collin. Collin took official place 560th (time-based 119th) and Zach took official place 556th (time-based 87th). Zach was faster on foot and finished ahead on the official clock too. Biggest swing: Zach gained 0:42 from Cardiac to White Gate.

Deltas

Computed

Wave start

Both started in the same wave.

Overall place Δ: +4
Actual time Δ: +1:13
Section gap Δ: ±0 (same section)
Wave start Δ: ±0 min
Finish clock Δ: +1:13
Section place Δ: +3

Δ = Collin − Zach. Negative means Collin is ahead/faster.

Race timeline

Computed

Collin (Y-DR) · start 8:50 AM1:02:21

Zach (Y-DR) · start 8:50 AM1:01:08

Earliest wave start (8:50 AM)Last finish (+1:02:21)

Collin (Y-DR) started at 8:50 AM.
Zach (Y-DR) also started at 8:50 AM.
Actual running time: Zach was 1:13 faster on foot than Collin.
Finish clock: Zach crossed the line 1:13 ahead of Collin — Zach wins this head-to-head.

Δ (A − B): actual +1:13 · finish clock +1:13.

Position through the course

Official

Segment-by-segment splits

Official

Segment-by-segment splits comparing the two selected athletes.
Segment	Collin	Zach	Δ
Start to Top of Stairs	7:24	7:44	-0:20
Stairs to Windy Gap	5:32	5:12	+0:20
Windy Gap to Muir Woods	5:24	5:35	-0:11
Muir Woods to Cardiac	23:41	23:04	+0:37
Cardiac to White Gate	12:12	11:30	+0:42
White Gate to The Stile	6:16	6:14	+0:02
The Stile to Finish	1:52	1:49	+0:03

Δ negative = Collin ran the segment faster.

Open Collin's dashboard · Open Zach's dashboard