Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialRoy A Rivers
#170 · 1:19:28 · M69 · Group E · INV
Wave start 8:06 AM (E-INV)
Athlete B
OfficialJonathan M Bretan
#173 · 1:03:36 · M43 · Group X · INV
Wave start 8:22 AM (X-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
Roy (E-INV) started at 8:06 AM; Jonathan (X-INV) started at 8:22 AM. That gave Roy a 16 minutes head start on Jonathan. On foot, Roy ran 1:19:28 and Jonathan ran 1:03:36 — Jonathan was 15:52 faster than Roy. Roy took official place 170th (time-based 631st) and Jonathan took official place 173rd (time-based 146th). Roy's head start was enough to flip the official order even though Jonathan was faster on foot. Biggest swing: Jonathan gained 7:32 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Roy A Rivers (E-INV) started 16 min earlier than Jonathan (X-INV).
- Overall place Δ
- -3
- Actual time Δ
- +15:52
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 16 min (Roy earlier)
- Finish clock Δ
- -0:08
- Section place Δ
- -9
Δ = Roy − Jonathan. Negative means Roy is ahead/faster.
Race timeline
Computed- Roy (E-INV) started at 8:06 AM.
- Jonathan (X-INV) started at 8:22 AM, 16:00 later.
- Actual running time: Jonathan was 15:52 faster on foot than Roy.
- Finish clock: Roy crossed the line 0:08 ahead of Jonathan — Roy wins this head-to-head.
Δ (A − B): actual +15:52 · finish clock -0:08.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | Roy | Jonathan | Δ |
|---|---|---|---|
| Start to Top of Stairs | 10:07 | 7:05 | +3:02 |
| Stairs to Windy Gap | 7:28 | 5:46 | +1:42 |
| Windy Gap to Muir Woods | 6:08 | 5:01 | +1:07 |
| Muir Woods to Cardiac | 31:45 | 24:13 | +7:32 |
| Cardiac to White Gate | 14:40 | 12:59 | +1:41 |
| White Gate to The Stile | 7:06 | 6:30 | +0:36 |
| The Stile to Finish | 2:14 | 2:02 | +0:12 |
Δ negative = Roy ran the segment faster.