Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialRowan E Prindiville
#177 · 1:01:51 · M18 · Group Z · INV
Wave start 8:24 AM (Z-INV)
Athlete B
OfficialDavid W Wood
#178 · 1:10:54 · M58 · Group P · INV
Wave start 8:15 AM (P-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
Rowan (Z-INV) started at 8:24 AM; David (P-INV) started at 8:15 AM. That gave David a 9 minutes head start on Rowan. On foot, Rowan ran 1:01:51 and David ran 1:10:54 — Rowan was 9:03 faster than David. Rowan took official place 177th (time-based 105th) and David took official place 178th (time-based 352nd). Rowan was faster on foot and finished ahead on the official clock too. Biggest swing: Rowan gained 3:56 from Muir Woods to Cardiac.
Deltas
ComputedWave start
David W Wood (P-INV) started 9 min earlier than Rowan (Z-INV).
- Overall place Δ
- -1
- Actual time Δ
- -9:03
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 9 min (David earlier)
- Finish clock Δ
- -0:03
- Section place Δ
- +9
Δ = Rowan − David. Negative means Rowan is ahead/faster.
Race timeline
Computed- David (P-INV) started at 8:15 AM.
- Rowan (Z-INV) started at 8:24 AM, 9:00 later.
- Actual running time: Rowan was 9:03 faster on foot than David.
- Finish clock: Rowan crossed the line 0:03 ahead of David — Rowan wins this head-to-head.
Δ (A − B): actual -9:03 · finish clock -0:03.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Rowan | David | Δ |
|---|---|---|---|
| Start to Top of Stairs | 6:27 | 7:58 | -1:31 |
| Stairs to Windy Gap | 5:08 | 6:21 | -1:13 |
| Windy Gap to Muir Woods | 5:05 | 5:21 | -0:16 |
| Muir Woods to Cardiac | 24:48 | 28:44 | -3:56 |
| Cardiac to White Gate | 12:33 | 13:40 | -1:07 |
| White Gate to The Stile | 6:17 | 6:48 | -0:31 |
| The Stile to Finish | 1:33 | 2:02 | -0:29 |
Δ negative = Rowan ran the segment faster.