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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

Jonnie A Alper

#1158 · 1:46:00 · M62 · Group L · DR

Wave start 8:39 AM (L-DR)

Athlete B

Official

Daniel T Reid

#1155 · 1:36:32 · M47 · Group W · DR

Wave start 8:48 AM (W-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

Jonnie (L-DR) started at 8:39 AM; Daniel (W-DR) started at 8:48 AM. That gave Jonnie a 9 minutes head start on Daniel. On foot, Jonnie ran 1:46:00 and Daniel ran 1:36:32 — Daniel was 9:28 faster than Jonnie. Jonnie took official place 1158th (time-based 1179th) and Daniel took official place 1155th (time-based 1047th). Daniel was faster on foot and finished ahead on the official clock too. Biggest swing: Daniel gained 4:17 from Cardiac to White Gate.

Deltas

Computed

Wave start

Jonnie A Alper (L-DR) started 9 min earlier than Daniel (W-DR).

Overall place Δ
+3
Actual time Δ
+9:28
Section gap Δ
±0 (same section)
Wave start Δ
9 min (Jonnie earlier)
Finish clock Δ
+0:28
Section place Δ
-4

Δ = JonnieDaniel. Negative means Jonnie is ahead/faster.

Race timeline

Computed
Jonnie (L-DR) · start 8:39 AM1:46:00
Daniel (W-DR) · start 8:48 AM1:36:32
Earliest wave start (8:39 AM)Last finish (+1:46:00)
  • Jonnie (L-DR) started at 8:39 AM.
  • Daniel (W-DR) started at 8:48 AM, 9:00 later.
  • Actual running time: Daniel was 9:28 faster on foot than Jonnie.
  • Finish clock: Daniel crossed the line 0:28 ahead of Jonnie Daniel wins this head-to-head.

Δ (A − B): actual +9:28 · finish clock +0:28.

Position through the course

Official

Segment-by-segment splits

Official
Segment-by-segment splits comparing the two selected athletes.
SegmentJonnieDanielΔ
Start to Top of Stairs12:2011:13+1:07
Stairs to Windy Gap9:039:20-0:17
Windy Gap to Muir Woods8:097:08+1:01
Muir Woods to Cardiac40:5138:57+1:54
Cardiac to White Gate22:0317:46+4:17
White Gate to The Stile10:329:15+1:17
The Stile to Finish3:022:53+0:09

Δ negative = Jonnie ran the segment faster.