Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialAdam G Shapiro
#689 · 1:11:20 · M25 · Group SCR · DR
Wave start 8:52 AM (SCR-DR)
Athlete B
OfficialMatthew Adan
#685 · 1:12:08 · M31 · Group Z · DR
Wave start 8:51 AM (Z-DR)
Interpretation
Adam (SCR-DR) started at 8:52 AM; Matthew (Z-DR) started at 8:51 AM. That gave Matthew a 1 minute head start on Adam. On foot, Adam ran 1:11:20 and Matthew ran 1:12:08 — Adam was 0:48 faster than Matthew. Adam took official place 689th (time-based 360th) and Matthew took official place 685th (time-based 393rd). Matthew's head start was enough to flip the official order even though Adam was faster on foot. Biggest swing: Adam gained 0:48 from Windy Gap to Muir Woods.
Deltas
ComputedWave start
Matthew Adan (Z-DR) started 1 min earlier than Adam (SCR-DR).
- Overall place Δ
- +4
- Actual time Δ
- -0:48
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 1 min (Matthew earlier)
- Finish clock Δ
- +0:12
- Section place Δ
- -13
Δ = Adam − Matthew. Negative means Adam is ahead/faster.
Race timeline
Computed- Matthew (Z-DR) started at 8:51 AM.
- Adam (SCR-DR) started at 8:52 AM, 1:00 later.
- Actual running time: Adam was 0:48 faster on foot than Matthew.
- Finish clock: Matthew crossed the line 0:12 ahead of Adam — Matthew wins this head-to-head.
Δ (A − B): actual -0:48 · finish clock +0:12.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Adam | Matthew | Δ |
|---|---|---|---|
| Start to Top of Stairs | 8:28 | 8:21 | +0:07 |
| Stairs to Windy Gap | 6:07 | 5:43 | +0:24 |
| Windy Gap to Muir Woods | 6:15 | 7:03 | -0:48 |
| Muir Woods to Cardiac | 27:04 | 27:32 | -0:28 |
| Cardiac to White Gate | 14:49 | 14:40 | +0:09 |
| White Gate to The Stile | 6:53 | 6:58 | -0:05 |
| The Stile to Finish | 1:44 | 1:51 | -0:07 |
Δ negative = Adam ran the segment faster.