Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialMarshall Roslyn
#832 · 1:21:58 · M46 · Group W · DR
Wave start 8:48 AM (W-DR)
Athlete B
OfficialLisa A Barringer
#834 · 1:32:59 · F54 · Group J · DR
Wave start 8:37 AM (J-DR)
Interpretation
Marshall (W-DR) started at 8:48 AM; Lisa (J-DR) started at 8:37 AM. That gave Lisa a 11 minutes head start on Marshall. On foot, Marshall ran 1:21:58 and Lisa ran 1:32:59 — Marshall was 11:01 faster than Lisa. Marshall took official place 832nd (time-based 706th) and Lisa took official place 834th (time-based 964th). Marshall was faster on foot and finished ahead on the official clock too. Biggest swing: Marshall gained 2:52 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Lisa A Barringer (J-DR) started 11 min earlier than Marshall (W-DR).
- Overall place Δ
- -2
- Actual time Δ
- -11:01
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 11 min (Lisa earlier)
- Finish clock Δ
- -0:01
- Section place Δ
- +13
Δ = Marshall − Lisa. Negative means Marshall is ahead/faster.
Race timeline
Computed- Lisa (J-DR) started at 8:37 AM.
- Marshall (W-DR) started at 8:48 AM, 11:00 later.
- Actual running time: Marshall was 11:01 faster on foot than Lisa.
- Finish clock: Marshall crossed the line 0:01 ahead of Lisa — Marshall wins this head-to-head.
Δ (A − B): actual -11:01 · finish clock -0:01.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Marshall | Lisa | Δ |
|---|---|---|---|
| Start to Top of Stairs | 8:52 | 10:32 | -1:40 |
| Stairs to Windy Gap | 7:23 | 8:27 | -1:04 |
| Windy Gap to Muir Woods | 6:56 | 7:35 | -0:39 |
| Muir Woods to Cardiac | 32:33 | 35:25 | -2:52 |
| Cardiac to White Gate | 16:27 | 19:14 | -2:47 |
| White Gate to The Stile | 7:40 | 9:25 | -1:45 |
| The Stile to Finish | 2:07 | 2:21 | -0:14 |
Δ negative = Marshall ran the segment faster.