Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialGregg Walker
#693 · 1:21:39 · M58 · Group P · DR
Wave start 8:42 AM (P-DR)
Athlete B
OfficialAdam G Shapiro
#689 · 1:11:20 · M25 · Group SCR · DR
Wave start 8:52 AM (SCR-DR)
Interpretation
Gregg (P-DR) started at 8:42 AM; Adam (SCR-DR) started at 8:52 AM. That gave Gregg a 10 minutes head start on Adam. On foot, Gregg ran 1:21:39 and Adam ran 1:11:20 — Adam was 10:19 faster than Gregg. Gregg took official place 693rd (time-based 696th) and Adam took official place 689th (time-based 360th). Adam was faster on foot and finished ahead on the official clock too. Biggest swing: Adam gained 4:43 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Gregg Walker (P-DR) started 10 min earlier than Adam (SCR-DR).
- Overall place Δ
- +4
- Actual time Δ
- +10:19
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 10 min (Gregg earlier)
- Finish clock Δ
- +0:19
- Section place Δ
- +13
Δ = Gregg − Adam. Negative means Gregg is ahead/faster.
Race timeline
Computed- Gregg (P-DR) started at 8:42 AM.
- Adam (SCR-DR) started at 8:52 AM, 10:00 later.
- Actual running time: Adam was 10:19 faster on foot than Gregg.
- Finish clock: Adam crossed the line 0:19 ahead of Gregg — Adam wins this head-to-head.
Δ (A − B): actual +10:19 · finish clock +0:19.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Gregg | Adam | Δ |
|---|---|---|---|
| Start to Top of Stairs | 9:54 | 8:28 | +1:26 |
| Stairs to Windy Gap | 7:13 | 6:07 | +1:06 |
| Windy Gap to Muir Woods | 6:28 | 6:15 | +0:13 |
| Muir Woods to Cardiac | 31:47 | 27:04 | +4:43 |
| Cardiac to White Gate | 16:08 | 14:49 | +1:19 |
| White Gate to The Stile | 7:53 | 6:53 | +1:00 |
| The Stile to Finish | 2:16 | 1:44 | +0:32 |
Δ negative = Gregg ran the segment faster.