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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

Ian Oprendek

#1364 · 2:10:01 · M28 · Group Z · DR

Wave start 8:51 AM (Z-DR)

Athlete B

Official

Doug M Karpa

#1367 · 2:18:14 · M57 · Group Q · DR

Wave start 8:43 AM (Q-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

Ian (Z-DR) started at 8:51 AM; Doug (Q-DR) started at 8:43 AM. That gave Doug a 8 minutes head start on Ian. On foot, Ian ran 2:10:01 and Doug ran 2:18:14 — Ian was 8:13 faster than Doug. Ian took official place 1364th (time-based 1331st) and Doug took official place 1367th (time-based 1349th). Ian was faster on foot and finished ahead on the official clock too. Biggest swing: Ian gained 3:36 from White Gate to The Stile.

Deltas

Computed

Wave start

Doug M Karpa (Q-DR) started 8 min earlier than Ian (Z-DR).

Overall place Δ
-3
Actual time Δ
-8:13
Section gap Δ
±0 (same section)
Wave start Δ
8 min (Doug earlier)
Finish clock Δ
-0:13
Section place Δ
-38

Δ = IanDoug. Negative means Ian is ahead/faster.

Race timeline

Computed
Ian (Z-DR) · start 8:51 AM2:10:01
Doug (Q-DR) · start 8:43 AM2:18:14
Earliest wave start (8:43 AM)Last finish (+2:18:14)
  • Doug (Q-DR) started at 8:43 AM.
  • Ian (Z-DR) started at 8:51 AM, 8:00 later.
  • Actual running time: Ian was 8:13 faster on foot than Doug.
  • Finish clock: Ian crossed the line 0:13 ahead of Doug Ian wins this head-to-head.

Δ (A − B): actual -8:13 · finish clock -0:13.

Position through the course

Official

Segment-by-segment splits

Official
Segment-by-segment splits comparing the two selected athletes.
SegmentIanDougΔ
Start to Top of Stairs12:4313:16-0:33
Stairs to Windy Gap11:4710:05+1:42
Windy Gap to Muir Woods8:368:42-0:06
Muir Woods to Cardiac48:2952:00-3:31
Cardiac to White Gate28:2330:18-1:55
White Gate to The Stile16:3620:12-3:36
The Stile to Finish3:273:41-0:14

Δ negative = Ian ran the segment faster.