Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialDavid W Erskine
#1375 · 2:38:57 · M76 · Group AAA · DR
Wave start 8:27 AM (AAA-DR)
Athlete B
OfficialRobert J Stumpf
#1377 · 2:41:13 · M78 · Group AAA · DR
Wave start 8:27 AM (AAA-DR)
Comparison report
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The PDF includes the interpretation, deltas, race timeline, position-through-the-course chart, and segment-by-segment splits shown below.
Interpretation
David (AAA-DR) started at 8:27 AM; Robert (AAA-DR) started at 8:27 AM. Both left the line at the same moment. On foot, David ran 2:38:57 and Robert ran 2:41:13 — David was 2:16 faster than Robert. David took official place 1375th (time-based 1376th) and Robert took official place 1377th (time-based 1382nd). David was faster on foot and finished ahead on the official clock too. Biggest swing: David gained 4:35 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Both started in the same wave.
- Overall place Δ
- -2
- Actual time Δ
- -2:16
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- ±0 min
- Finish clock Δ
- -2:16
- Section place Δ
- -2
Δ = David − Robert. Negative means David is ahead/faster.
Race timeline
Computed- David (AAA-DR) started at 8:27 AM.
- Robert (AAA-DR) also started at 8:27 AM.
- Actual running time: David was 2:16 faster on foot than Robert.
- Finish clock: David crossed the line 2:16 ahead of Robert — David wins this head-to-head.
Δ (A − B): actual -2:16 · finish clock -2:16.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | David | Robert | Δ |
|---|---|---|---|
| Start to Top of Stairs | 16:20 | 17:35 | -1:15 |
| Stairs to Windy Gap | 12:34 | 13:48 | -1:14 |
| Windy Gap to Muir Woods | 16:01 | 14:41 | +1:20 |
| Muir Woods to Cardiac | 49:58 | 54:33 | -4:35 |
| Cardiac to White Gate | 38:03 | 36:53 | +1:10 |
| White Gate to The Stile | 20:27 | 18:09 | +2:18 |
| The Stile to Finish | 5:34 | 5:34 | ±0:00 |
Δ negative = David ran the segment faster.