Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialMary Ludlam
#871 · 1:32:11 · F51 · Group L · DR
Wave start 8:39 AM (L-DR)
Athlete B
OfficialAlbert Collell
#872 · 1:21:19 · M39 · Group Y · DR
Wave start 8:50 AM (Y-DR)
Interpretation
Mary (L-DR) started at 8:39 AM; Albert (Y-DR) started at 8:50 AM. That gave Mary a 11 minutes head start on Albert. On foot, Mary ran 1:32:11 and Albert ran 1:21:19 — Albert was 10:52 faster than Mary. Mary took official place 871st (time-based 948th) and Albert took official place 872nd (time-based 686th). Mary's head start was enough to flip the official order even though Albert was faster on foot. Biggest swing: Albert gained 5:19 from Cardiac to White Gate.
Deltas
ComputedWave start
Mary Ludlam (L-DR) started 11 min earlier than Albert (Y-DR).
- Overall place Δ
- -1
- Actual time Δ
- +10:52
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 11 min (Mary earlier)
- Finish clock Δ
- -0:08
- Section place Δ
- -41
Δ = Mary − Albert. Negative means Mary is ahead/faster.
Race timeline
Computed- Mary (L-DR) started at 8:39 AM.
- Albert (Y-DR) started at 8:50 AM, 11:00 later.
- Actual running time: Albert was 10:52 faster on foot than Mary.
- Finish clock: Mary crossed the line 0:08 ahead of Albert — Mary wins this head-to-head.
Δ (A − B): actual +10:52 · finish clock -0:08.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Mary | Albert | Δ |
|---|---|---|---|
| Start to Top of Stairs | 10:18 | 10:39 | -0:21 |
| Stairs to Windy Gap | 7:43 | 7:14 | +0:29 |
| Windy Gap to Muir Woods | 6:53 | 6:08 | +0:45 |
| Muir Woods to Cardiac | 34:19 | 31:58 | +2:21 |
| Cardiac to White Gate | 20:45 | 15:26 | +5:19 |
| White Gate to The Stile | 9:18 | 7:46 | +1:32 |
| The Stile to Finish | 2:55 | 2:08 | +0:47 |
Δ negative = Mary ran the segment faster.