Head-to-head
Pick two athletes to see how the race played out between them — by actual time, head start, and checkpoint.
Athlete A
OfficialDavid T Lam
#397 · 1:10:15 · M41 · Group Y · INV
Wave start 8:23 AM (Y-INV)
Athlete B
OfficialHeidi K Hugo
#402 · 1:33:25 · F66 · Group AAA · INV
Wave start 8:00 AM (AAA-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
David (Y-INV) started at 8:23 AM; Heidi (AAA-INV) started at 8:00 AM. That gave Heidi a 23 minutes head start on David. On foot, David ran 1:10:15 and Heidi ran 1:33:25 — David was 23:10 faster than Heidi. David took official place 397th (time-based 334th) and Heidi took official place 402nd (time-based 970th). David was faster on foot and finished ahead on the official clock too. Biggest swing: David gained 8:59 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Heidi K Hugo (AAA-INV) started 23 min earlier than David (Y-INV).
- Overall place Δ
- -5
- Actual time Δ
- -23:10
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 23 min (Heidi earlier)
- Finish clock Δ
- -0:10
- Section place Δ
- +68
Δ = David − Heidi. Negative means David is ahead/faster.
Race timeline
Computed- Heidi (AAA-INV) started at 8:00 AM.
- David (Y-INV) started at 8:23 AM, 23:00 later.
- Actual running time: David was 23:10 faster on foot than Heidi.
- Finish clock: David crossed the line 0:10 ahead of Heidi — David wins this head-to-head.
Δ (A − B): actual -23:10 · finish clock -0:10.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | David | Heidi | Δ |
|---|---|---|---|
| Start to Top of Stairs | 8:16 | 11:20 | -3:04 |
| Stairs to Windy Gap | 6:05 | 8:27 | -2:22 |
| Windy Gap to Muir Woods | 5:36 | 7:45 | -2:09 |
| Muir Woods to Cardiac | 26:26 | 35:25 | -8:59 |
| Cardiac to White Gate | 14:53 | 18:33 | -3:40 |
| White Gate to The Stile | 7:07 | 9:08 | -2:01 |
| The Stile to Finish | 1:52 | 2:47 | -0:55 |
Δ negative = David ran the segment faster.