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 Hafferty
#127 · 1:00:58 · M36 · Group Y · INV
Wave start 8:23 AM (Y-INV)
Athlete B
OfficialAdam Roeder
#126 · 59:56 · M31 · Group Z · INV
Wave start 8:24 AM (Z-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; Adam (Z-INV) started at 8:24 AM. That gave David a 1 minute head start on Adam. On foot, David ran 1:00:58 and Adam ran 59:56 — Adam was 1:02 faster than David. David took official place 127th (time-based 77th) and Adam took official place 126th (time-based 65th). Adam was faster on foot and finished ahead on the official clock too. Biggest swing: Adam gained 1:20 from Muir Woods to Cardiac.
Deltas
ComputedWave start
David Hafferty (Y-INV) started 1 min earlier than Adam (Z-INV).
- Overall place Δ
- +1
- Actual time Δ
- +1:02
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 1 min (David earlier)
- Finish clock Δ
- +0:02
- Section place Δ
- +7
Δ = David − Adam. Negative means David is ahead/faster.
Race timeline
Computed- David (Y-INV) started at 8:23 AM.
- Adam (Z-INV) started at 8:24 AM, 1:00 later.
- Actual running time: Adam was 1:02 faster on foot than David.
- Finish clock: Adam crossed the line 0:02 ahead of David — Adam wins this head-to-head.
Δ (A − B): actual +1:02 · finish clock +0:02.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | David | Adam | Δ |
|---|---|---|---|
| Start to Top of Stairs | 7:05 | 7:08 | -0:03 |
| Stairs to Windy Gap | 5:21 | 5:03 | +0:18 |
| Windy Gap to Muir Woods | 5:08 | 5:25 | -0:17 |
| Muir Woods to Cardiac | 23:08 | 21:48 | +1:20 |
| Cardiac to White Gate | 12:13 | 12:20 | -0:07 |
| White Gate to The Stile | 6:21 | 6:28 | -0:07 |
| The Stile to Finish | 1:42 | 1:44 | -0:02 |
Δ negative = David ran the segment faster.