Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialSpencer A Fast
#860 · 1:27:53 · M57 · Group Q · DR
Wave start 8:43 AM (Q-DR)
Athlete B
OfficialMason W Marks
#861 · 1:18:55 · M24 · Group SCR · DR
Wave start 8:52 AM (SCR-DR)
Interpretation
Spencer (Q-DR) started at 8:43 AM; Mason (SCR-DR) started at 8:52 AM. That gave Spencer a 9 minutes head start on Mason. On foot, Spencer ran 1:27:53 and Mason ran 1:18:55 — Mason was 8:58 faster than Spencer. Spencer took official place 860th (time-based 861st) and Mason took official place 861st (time-based 611th). Spencer's head start was enough to flip the official order even though Mason was faster on foot. Biggest swing: Mason gained 3:45 from Cardiac to White Gate.
Deltas
ComputedWave start
Spencer A Fast (Q-DR) started 9 min earlier than Mason (SCR-DR).
- Overall place Δ
- -1
- Actual time Δ
- +8:58
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 9 min (Spencer earlier)
- Finish clock Δ
- -0:02
- Section place Δ
- +29
Δ = Spencer − Mason. Negative means Spencer is ahead/faster.
Race timeline
Computed- Spencer (Q-DR) started at 8:43 AM.
- Mason (SCR-DR) started at 8:52 AM, 9:00 later.
- Actual running time: Mason was 8:58 faster on foot than Spencer.
- Finish clock: Spencer crossed the line 0:02 ahead of Mason — Spencer wins this head-to-head.
Δ (A − B): actual +8:58 · finish clock -0:02.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Spencer | Mason | Δ |
|---|---|---|---|
| Start to Top of Stairs | 10:06 | 8:28 | +1:38 |
| Stairs to Windy Gap | 7:23 | 7:48 | -0:25 |
| Windy Gap to Muir Woods | 9:11 | 6:02 | +3:09 |
| Muir Woods to Cardiac | 30:36 | 31:24 | -0:48 |
| Cardiac to White Gate | 19:20 | 15:35 | +3:45 |
| White Gate to The Stile | 8:55 | 7:37 | +1:18 |
| The Stile to Finish | 2:22 | 2:01 | +0:21 |
Δ negative = Spencer ran the segment faster.