Justin Chen
Bib: 21148•M•Age: 20
Stanford, CA
⏱️ Race Timeline
The Course
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Checkpoint Splits
| Checkpoint | Distance | Time of Day | Time | Avg Pace | Segment Time | Segment Pace | Diff |
|---|---|---|---|---|---|---|---|
1.2M | 1.20 mi | 08:49:27 | 12:58 | 10:48 | 12:58 | 10:48 | - |
4.9M | 4.90 mi | 09:26:23 | 49:54 | 10:11 | 36:56 | 9:59 | -0:49 |
11.9M | 11.90 mi | 11:08:56 | 2:32:27 | 12:49 | 1:42:33 | 14:39 | +4:40 |
Finish | 13.11 mi | 11:22:51 | 2:46:22 | 12:41 | 13:55 | 11:31 | -3:08 |
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
9:59 /mi
Average Pace
12:41 /mi
Slowest Pace
14:39 /mi
📊Segments
Segment Time Comparison
Time at Faster Pace
36:56
22% of race
Time at Steady Pace
26:53
16% of race
Time at Slower Pace
1:42:33
62% of race
Average Pace: 12:41 /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
Overall Pace Trend
| Checkpoint | Distance | Time of Day | Time | Avg Pace | Segment | Pace | Trend | Rank |
|---|---|---|---|---|---|---|---|---|
1.2M | 1.20 mi | 08:49:27 | 12:58 | 10:48 | 12:58 | 10:48 | #2135 | |
4.9M | 4.90 mi | 09:26:23 | 49:54 | 10:11 | 36:56 | 9:59 | #2251 | |
11.9M | 11.90 mi | 11:08:56 | 2:32:27 | 12:49 | 1:42:33 | 14:39 | #3178 | |
Finish | 13.11 mi | 11:22:51 | 2:46:22 | 12:41 | 13:55 | 11:31 | #3119 |
Checkpoint and Segment Rankings
| Checkpoint | Distance | Seg. Dist | Overall | Males | M20-29 | Seg. Overall | Seg. Males | Seg. M20-29 |
|---|---|---|---|---|---|---|---|---|
| 1.2M | 1.20 mi | 1.20 mi | 2135 | 1320 | 180 | 2135(Top 59%) | 1320(Top 68%) | 180(Top 78%) |
| 4.9M | 4.90 mi | 3.70 mi | 2251-116 | 1387-67 | 191-11 | 2273(Top 63%) | 1396(Top 72%) | 191(Top 82%) |
| 11.9M | 11.90 mi | 7.00 mi | 3178-927 | 1775-388 | 223-32 | 3418(Top 95%) | 1868(Top 96%) | 227(Top 98%) |
| Finish | 13.11 mi | 1.21 mi | 3119+59 | 1744+31 | 219+4 | 2336(Top 65%) | 1375(Top 71%) | 183(Top 79%) |
Segment Performance Analysis
Start → 1.2M
0.0 - 1.2 mi
Overall
2135
Males
1320
M20-24
180
1.2M→4.9M
1.2 - 4.9 mi
Overall
2273
Males
1396
M20-24
191
4.9M→11.9M
4.9 - 11.9 mi
Overall
3418
Males
1868
M20-24
227
11.9M→Finish
11.9 - 13.1 mi
Overall
2336
Males
1375
M20-24
183
Passing Analysis
| Segment | Athletes Passed | Passed By | Net Change | Start Rank | End Rank |
|---|---|---|---|---|---|
| Start → 1.2M | - | - | - | - | #2135 |
| 1.2M → 4.9M | 106* | 222 | -116 | #2135 | #2251 |
| 4.9M → 11.9M | 7* | 934 | -927 | #2251 | #3178 |
| 11.9M → Finish | 59* | 0 | +59 | #3178 | #3119 |
| TOTALS | 172* | 1156 | -984 |
* Includes athletes who did not complete a segment (DNF/DNQ).
Passing Visuals
🔄Passing Circle
🌊Position Flow
🏃Race Lanes
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Race managed by
The San Francisco Marathon
