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 Leipsic
#516 · 1:31:14 · M61 · Group M · INV
Wave start 8:13 AM (M-INV)
Athlete B
OfficialEric M Spector
#515 · 1:44:05 · M79 · 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 (M-INV) started at 8:13 AM; Eric (AAA-INV) started at 8:00 AM. That gave Eric a 13 minutes head start on David. On foot, David ran 1:31:14 and Eric ran 1:44:05 — David was 12:51 faster than Eric. David took official place 516th (time-based 931st) and Eric took official place 515th (time-based 1156th). Eric's head start was enough to flip the official order even though David was faster on foot. Biggest swing: David gained 4:32 from Muir Woods to Cardiac.
Deltas
ComputedWave start
Eric M Spector (AAA-INV) started 13 min earlier than David (M-INV).
- Overall place Δ
- +1
- Actual time Δ
- -12:51
- Section gap Δ
- ±0 (same section)
- Wave start Δ
- 13 min (Eric earlier)
- Finish clock Δ
- +0:09
- Section place Δ
- +17
Δ = David − Eric. Negative means David is ahead/faster.
Race timeline
Computed- Eric (AAA-INV) started at 8:00 AM.
- David (M-INV) started at 8:13 AM, 13:00 later.
- Actual running time: David was 12:51 faster on foot than Eric.
- Finish clock: Eric crossed the line 0:09 ahead of David — Eric wins this head-to-head.
Δ (A − B): actual -12:51 · finish clock +0:09.
Position through the course
OfficialSegment-by-segment splits
Official| Segment | David | Eric | Δ |
|---|---|---|---|
| Start to Top of Stairs | 11:07 | 12:02 | -0:55 |
| Stairs to Windy Gap | 7:33 | 9:30 | -1:57 |
| Windy Gap to Muir Woods | 8:46 | 8:59 | -0:13 |
| Muir Woods to Cardiac | 33:24 | 37:56 | -4:32 |
| Cardiac to White Gate | 18:20 | 22:01 | -3:41 |
| White Gate to The Stile | 9:23 | 10:48 | -1:25 |
| The Stile to Finish | 2:41 | 2:49 | -0:08 |
Δ negative = David ran the segment faster.