Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialMason W Marks
#861 · 1:18:55 · M24 · Group SCR · DR
Wave start 8:52 AM (SCR-DR)
Athlete B
OfficialKathryn Byram
#858 · 1:27:47 · F26 · Group Q · DR
Wave start 8:43 AM (Q-DR)
Interpretation
Mason (SCR-DR) started at 8:52 AM; Kathryn (Q-DR) started at 8:43 AM. That gave Kathryn a 9 minutes head start on Mason. On foot, Mason ran 1:18:55 and Kathryn ran 1:27:47 — Mason was 8:52 faster than Kathryn. Mason took official place 861st (time-based 611th) and Kathryn took official place 858th (time-based 859th). Kathryn's head start was enough to flip the official order even though Mason was faster on foot. Biggest swing: Mason gained 1:57 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Kathryn Byram (Q-DR) started 9 min earlier than Mason (SCR-DR).
- Overall place Δ
- +3
- Actual time Δ
- -8:52
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 9 min (Kathryn earlier)
- Finish clock Δ
- +0:08
- Section place Δ
- -28
Δ = Mason − Kathryn. Negative means Mason is ahead/faster.
Race timeline
Computed- Kathryn (Q-DR) started at 8:43 AM.
- Mason (SCR-DR) started at 8:52 AM, 9:00 later.
- Actual running time: Mason was 8:52 faster on foot than Kathryn.
- Finish clock: Kathryn crossed the line 0:08 ahead of Mason — Kathryn wins this head-to-head.
Δ (A − B): actual -8:52 · finish clock +0:08.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Mason | Kathryn | Δ |
|---|---|---|---|
| Start to Top of Stairs | 8:28 | 10:53 | -2:25 |
| Stairs to Windy Gap | 7:48 | 7:32 | +0:16 |
| Windy Gap to Muir Woods | 6:02 | 7:48 | -1:46 |
| Muir Woods to Cardiac | 31:24 | 33:21 | -1:57 |
| Cardiac to White Gate | 15:35 | 17:32 | -1:57 |
| White Gate to The Stile | 7:37 | 8:28 | -0:51 |
| The Stile to Finish | 2:01 | 2:13 | -0:12 |
Δ negative = Mason ran the segment faster.