Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialMark Callon
#76 · 1:05:42 · M57 · Group Q · INV
Wave start 8:16 AM (Q-INV)
Athlete B
OfficialEmma Wilka
#81 · 1:16:52 · F9 · Group D · INV
Wave start 8:05 AM (D-INV)
Comparison report
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The PDF includes the interpretation, deltas, race timeline, position-through-the-course chart, and segment-by-segment splits shown below.
Interpretation
Mark (Q-INV) started at 8:16 AM; Emma (D-INV) started at 8:05 AM. That gave Emma a 11 minutes head start on Mark. On foot, Mark ran 1:05:42 and Emma ran 1:16:52 — Mark was 11:10 faster than Emma. Mark took official place 76th (time-based 199th) and Emma took official place 81st (time-based 548th). Mark was faster on foot and finished ahead on the official clock too. Biggest swing: Mark gained 6:25 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Emma Wilka (D-INV) started 11 min earlier than Mark (Q-INV).
- Overall place Δ
- -5
- Actual time Δ
- -11:10
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 11 min (Emma earlier)
- Finish clock Δ
- -0:10
- Section place Δ
- +13
Δ = Mark − Emma. Negative means Mark is ahead/faster.
Race timeline
Computed- Emma (D-INV) started at 8:05 AM.
- Mark (Q-INV) started at 8:16 AM, 11:00 later.
- Actual running time: Mark was 11:10 faster on foot than Emma.
- Finish clock: Mark crossed the line 0:10 ahead of Emma — Mark wins this head-to-head.
Δ (A − B): actual -11:10 · finish clock -0:10.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Mark | Emma | Δ |
|---|---|---|---|
| Start to Top of Stairs | 7:25 | 8:21 | -0:56 |
| Stairs to Windy Gap | 5:30 | 6:39 | -1:09 |
| Windy Gap to Muir Woods | 5:43 | 6:43 | -1:00 |
| Muir Woods to Cardiac | 23:32 | 29:57 | -6:25 |
| Cardiac to White Gate | 14:02 | 16:00 | -1:58 |
| White Gate to The Stile | 7:39 | 7:15 | +0:24 |
| The Stile to Finish | 1:51 | 1:57 | -0:06 |
Δ negative = Mark ran the segment faster.