Sampson Gu
Bib: 3877•M•Age: 30
Millbrae, CA
⏱️ Race Timeline
Watch your race unfold from start to finish
Course Map & Elevation
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Checkpoint Splits
| Checkpoint | Distance | Time of Day | Time | Avg Pace | Segment Time | Segment Pace | Diff |
|---|---|---|---|---|---|---|---|
1.81M | 1.81 mi | 05:29:15 | 13:01 | 7:11 | 13:01 | 7:11 | - |
6.52M | 6.52 mi | 06:03:37 | 47:23 | 7:16 | 34:22 | 7:18 | +0:07 |
10.89M | 10.89 mi | 06:35:56 | 1:19:42 | 7:19 | 32:19 | 7:24 | +0:06 |
Garmin Hill Challenge | 11.40 mi | 06:40:03 | 1:23:49 | 7:21 | 4:07 | 8:04 | +0:40 |
14.95M | 14.95 mi | 07:04:20 | 1:48:06 | 7:14 | 24:17 | 6:50 | -1:14 |
18M | 18.00 mi | 07:30:24 | 2:14:10 | 7:27 | 26:04 | 8:33 | +1:43 |
24.69M | 24.69 mi | 08:24:55 | 3:08:41 | 7:39 | 54:31 | 8:09 | -0:24 |
Finish | 26.22 mi | 08:37:01 | 3:20:47 | 7:40 | 12:06 | 7:55 | -0:14 |
Checkpoints & Pacing
📈Pace Line
Pace Progression
Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.
Fastest Pace
6:50 /mi
Average Pace
7:40 /mi
Slowest Pace
8:33 /mi
📊Segments
Segment Time Comparison
Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.
Time at Faster Pace
1:43:59
52% of race
Time at Steady Pace
1:10:44
35% of race
Time at Slower Pace
26:04
13% of race
Average Pace: 7:39 /mi
🎨Heatmap
Pace Heatmap
Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.
Click or hover over segments to see details
✨Sparklines
Checkpoint Splits with Pace Trends
Enhanced split table showing pace trends through mini sparkline visualizations.
Overall Pace Trend
| Checkpoint | Distance | Time of Day | Time | Avg Pace | Segment | Pace | Trend | Rank |
|---|---|---|---|---|---|---|---|---|
1.81M | 1.81 mi | 05:29:15 | 13:01 | 7:11 | 13:01 | 7:11 | #299 | |
6.52M | 6.52 mi | 06:03:37 | 47:23 | 7:16 | 34:22 | 7:18 | #278 | |
10.89M | 10.89 mi | 06:35:56 | 1:19:42 | 7:19 | 32:19 | 7:24 | #285 | |
Garmin Hill Challenge | 11.40 mi | 06:40:03 | 1:23:49 | 7:21 | 4:07 | 8:04 | #286 | |
14.95M | 14.95 mi | 07:04:20 | 1:48:06 | 7:14 | 24:17 | 6:50 | #292 | |
18M | 18.00 mi | 07:30:24 | 2:14:10 | 7:27 | 26:04 | 8:33 | #297 | |
24.69M | 24.69 mi | 08:24:55 | 3:08:41 | 7:39 | 54:31 | 8:09 | #312 | |
Finish | 26.22 mi | 08:37:01 | 3:20:47 | 7:40 | 12:06 | 7:55 | #316 |
Checkpoint and Segment Rankings
| Checkpoint | Distance | Seg. Dist | Overall | Males | M30-34 | Seg. Overall | Seg. Males | Seg. M30-34 |
|---|---|---|---|---|---|---|---|---|
| 1.81M | 1.81 mi | 1.81 mi | 299 | 277 | 60 | 299(Top 5%) | 277(Top 7%) | 60(Top 7%) |
| 6.52M | 6.52 mi | 4.71 mi | 278+21 | 259+18 | 60 | 280(Top 5%) | 262(Top 6%) | 59(Top 7%) |
| 10.89M | 10.89 mi | 4.37 mi | 285-7 | 266-7 | 62-2 | 294(Top 5%) | 274(Top 7%) | 62(Top 8%) |
| Garmin Hill Challenge | 11.40 mi | 0.51 mi | 286-1 | 266 | 61+1 | 687(Top 12%) | 611(Top 15%) | 139(Top 17%) |
| 14.95M | 14.95 mi | 3.55 mi | 292-6 | 272-6 | 62-1 | 366(Top 6%) | 341(Top 8%) | 78(Top 9%) |
| 18M | 18.00 mi | 3.05 mi | 297-5 | 278-6 | 64-2 | 429(Top 8%) | 390(Top 9%) | 88(Top 11%) |
| 24.69M | 24.69 mi | 6.69 mi | 312-15 | 285-7 | 64 | 418(Top 7%) | 370(Top 9%) | 78(Top 9%) |
| Finish | 26.22 mi | 1.53 mi | 316-4 | 289-4 | 65-1 | 691(Top 12%) | 595(Top 14%) | 129(Top 16%) |
Segment Performance Analysis
Start → 1.81M
0.0 - 1.8 mi
Overall
299
Males
277
M30-34
61
1.81M→6.52M
1.8 - 6.5 mi
Overall
280
Males
262
M30-34
60
6.52M→10.89M
6.5 - 10.9 mi
Overall
294
Males
274
M30-34
63
10.89M→Garmin Hill Challenge
10.9 - 11.4 mi
Overall
687
Males
611
M30-34
140
Garmin Hill Challenge→14.95M
11.4 - 14.9 mi
Overall
366
Males
341
M30-34
79
14.95M→18M
14.9 - 18.0 mi
Overall
429
Males
390
M30-34
89
18M→24.69M
18.0 - 24.7 mi
Overall
418
Males
370
M30-34
78
24.69M→Finish
24.7 - 26.2 mi
Overall
691
Males
595
M30-34
129
Passing Analysis
| Segment | Athletes Passed | Passed By | Net Change | Start Rank | End Rank |
|---|---|---|---|---|---|
| Start → 1.81M | - | - | - | - | #299 |
| 1.81M → 6.52M | 30* | 9 | +21 | #299 | #278 |
| 6.52M → 10.89M | 6 | 13 | -7 | #278 | #285 |
| 10.89M → Garmin Hill Challenge | 8 | 9 | -1 | #285 | #286 |
| Garmin Hill Challenge → 14.95M | 9 | 15 | -6 | #286 | #292 |
| 14.95M → 18M | 11 | 16 | -5 | #292 | #297 |
| 18M → 24.69M | 29* | 44 | -15 | #297 | #312 |
| 24.69M → Finish | 6 | 10 | -4 | #312 | #316 |
| TOTALS | 99* | 116 | -17 |
* Includes athletes who did not complete a segment (DNF/DNQ).
Passing Visuals
📈Position Graph
🎨Heatmap Timeline
🔄Passing Circle
🌊Position Flow
🏃Race Lanes
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Race managed by
The San Francisco Marathon
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