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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

Gary C Byrd

#623 · 1:19:46 · M62 · Group L · DR

Wave start 8:39 AM (L-DR)

Athlete B

Official

Jeff Marks

#628 · 1:13:15 · M53 · Group U · DR

Wave start 8:46 AM (U-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

Gary (L-DR) started at 8:39 AM; Jeff (U-DR) started at 8:46 AM. That gave Gary a 7 minutes head start on Jeff. On foot, Gary ran 1:19:46 and Jeff ran 1:13:15 — Jeff was 6:31 faster than Gary. Gary took official place 623rd (time-based 644th) and Jeff took official place 628th (time-based 430th). Gary's head start was enough to flip the official order even though Jeff was faster on foot. Biggest swing: Jeff gained 1:41 from Cardiac to White Gate.

Deltas

Computed

Wave start

Gary C Byrd (L-DR) started 7 min earlier than Jeff (U-DR).

Overall place Δ
-5
Actual time Δ
+6:31
Section gap Δ
±0 (same section)
Wave start Δ
7 min (Gary earlier)
Finish clock Δ
-0:29
Section place Δ
-5

Δ = GaryJeff. Negative means Gary is ahead/faster.

Race timeline

Computed
Gary (L-DR) · start 8:39 AM1:19:46
Jeff (U-DR) · start 8:46 AM1:13:15
Earliest wave start (8:39 AM)Last finish (+1:20:15)
  • Gary (L-DR) started at 8:39 AM.
  • Jeff (U-DR) started at 8:46 AM, 7:00 later.
  • Actual running time: Jeff was 6:31 faster on foot than Gary.
  • Finish clock: Gary crossed the line 0:29 ahead of Jeff Gary wins this head-to-head.

Δ (A − B): actual +6:31 · finish clock -0:29.

Position through the course

Official

Segment-by-segment splits

Official
Segment-by-segment splits comparing the two selected athletes.
SegmentGaryJeffΔ
Start to Top of Stairs10:178:34+1:43
Stairs to Windy Gap6:586:24+0:34
Windy Gap to Muir Woods6:546:13+0:41
Muir Woods to Cardiac29:1628:16+1:00
Cardiac to White Gate16:1014:29+1:41
White Gate to The Stile7:557:15+0:40
The Stile to Finish2:162:04+0:12

Δ negative = Gary ran the segment faster.