Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialAnne E Lansdown
#837 · 1:28:05 · F42 · Group P · DR
Wave start 8:42 AM (P-DR)
Athlete B
OfficialHeather S Clark
#842 · 1:31:26 · F51 · Group L · DR
Wave start 8:39 AM (L-DR)
Interpretation
Anne (P-DR) started at 8:42 AM; Heather (L-DR) started at 8:39 AM. That gave Heather a 3 minutes head start on Anne. On foot, Anne ran 1:28:05 and Heather ran 1:31:26 — Anne was 3:21 faster than Heather. Anne took official place 837th (time-based 868th) and Heather took official place 842nd (time-based 934th). Anne was faster on foot and finished ahead on the official clock too. Biggest swing: Anne gained 4:18 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Heather S Clark (L-DR) started 3 min earlier than Anne (P-DR).
- Overall place Δ
- -5
- Actual time Δ
- -3:21
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 3 min (Heather earlier)
- Finish clock Δ
- -0:21
- Section place Δ
- +14
Δ = Anne − Heather. Negative means Anne is ahead/faster.
Race timeline
Computed- Heather (L-DR) started at 8:39 AM.
- Anne (P-DR) started at 8:42 AM, 3:00 later.
- Actual running time: Anne was 3:21 faster on foot than Heather.
- Finish clock: Anne crossed the line 0:21 ahead of Heather — Anne wins this head-to-head.
Δ (A − B): actual -3:21 · finish clock -0:21.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Anne | Heather | Δ |
|---|---|---|---|
| Start to Top of Stairs | 9:40 | 11:19 | -1:39 |
| Stairs to Windy Gap | 7:18 | 8:38 | -1:20 |
| Windy Gap to Muir Woods | 8:02 | 7:30 | +0:32 |
| Muir Woods to Cardiac | 31:07 | 35:25 | -4:18 |
| Cardiac to White Gate | 18:49 | 17:35 | +1:14 |
| White Gate to The Stile | 10:04 | 8:39 | +1:25 |
| The Stile to Finish | 3:05 | 2:20 | +0:45 |
Δ negative = Anne ran the segment faster.