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
OfficialJon Winston
#873 · 1:21:30 · M33 · Group Y · DR
Wave start 8:50 AM (Y-DR)
Interpretation
Mary (L-DR) started at 8:39 AM; Jon (Y-DR) started at 8:50 AM. That gave Mary a 11 minutes head start on Jon. On foot, Mary ran 1:32:11 and Jon ran 1:21:30 — Jon was 10:41 faster than Mary. Mary took official place 871st (time-based 948th) and Jon took official place 873rd (time-based 693rd). Mary's head start was enough to flip the official order even though Jon was faster on foot. Biggest swing: Jon gained 4:25 from Cardiac to White Gate.
Deltas
ComputedWave start
Mary Ludlam (L-DR) started 11 min earlier than Jon (Y-DR).
- Overall place Δ
- -2
- Actual time Δ
- +10:41
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 11 min (Mary earlier)
- Finish clock Δ
- -0:19
- Section place Δ
- -42
Δ = Mary − Jon. Negative means Mary is ahead/faster.
Race timeline
Computed- Mary (L-DR) started at 8:39 AM.
- Jon (Y-DR) started at 8:50 AM, 11:00 later.
- Actual running time: Jon was 10:41 faster on foot than Mary.
- Finish clock: Mary crossed the line 0:19 ahead of Jon — Mary wins this head-to-head.
Δ (A − B): actual +10:41 · finish clock -0:19.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Mary | Jon | Δ |
|---|---|---|---|
| Start to Top of Stairs | 10:18 | 8:24 | +1:54 |
| Stairs to Windy Gap | 7:43 | 7:26 | +0:17 |
| Windy Gap to Muir Woods | 6:53 | 6:20 | +0:33 |
| Muir Woods to Cardiac | 34:19 | 32:37 | +1:42 |
| Cardiac to White Gate | 20:45 | 16:20 | +4:25 |
| White Gate to The Stile | 9:18 | 8:03 | +1:15 |
| The Stile to Finish | 2:55 | 2:20 | +0:35 |
Δ negative = Mary ran the segment faster.