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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

Jonah Marucchi

#561 · 1:01:22 · M26 · Group Z · DR

Wave start 8:51 AM (Z-DR)

Comparison report

Download the full report as a PDF, share the file, or send a link to this view.

The PDF includes the interpretation, deltas, race timeline, position-through-the-course chart, and segment-by-segment splits shown below.

Interpretation

Collin (Y-DR) started at 8:50 AM; Jonah (Z-DR) started at 8:51 AM. That gave Collin a 1 minute head start on Jonah. On foot, Collin ran 1:02:21 and Jonah ran 1:01:22 — Jonah was 0:59 faster than Collin. Collin took official place 560th (time-based 119th) and Jonah took official place 561st (time-based 92nd). Collin's head start was enough to flip the official order even though Jonah was faster on foot. Biggest swing: Jonah gained 0:29 from Muir Woods to Cardiac.

Deltas

Computed

Wave start

Collin Atkinson (Y-DR) started 1 min earlier than Jonah (Z-DR).

Overall place Δ
-1
Actual time Δ
+0:59
Section gap Δ
±0 (same section)
Wave start Δ
1 min (Collin earlier)
Finish clock Δ
-0:01
Section place Δ
+4

Δ = CollinJonah. Negative means Collin is ahead/faster.

Race timeline

Computed
Collin (Y-DR) · start 8:50 AM1:02:21
Jonah (Z-DR) · start 8:51 AM1:01:22
Earliest wave start (8:50 AM)Last finish (+1:02:22)
  • Collin (Y-DR) started at 8:50 AM.
  • Jonah (Z-DR) started at 8:51 AM, 1:00 later.
  • Actual running time: Jonah was 0:59 faster on foot than Collin.
  • Finish clock: Collin crossed the line 0:01 ahead of Jonah Collin wins this head-to-head.

Δ (A − B): actual +0:59 · finish clock -0:01.

Position through the course

Official

Segment-by-segment splits

Official
Segment-by-segment splits comparing the two selected athletes.
SegmentCollinJonahΔ
Start to Top of Stairs7:247:36-0:12
Stairs to Windy Gap5:325:19+0:13
Windy Gap to Muir Woods5:245:24±0:00
Muir Woods to Cardiac23:4123:12+0:29
Cardiac to White Gate12:1212:24-0:12
White Gate to The Stile6:165:52+0:24
The Stile to Finish1:521:35+0:17

Δ negative = Collin ran the segment faster.