David Chen

Bib: 20730MAge: 29

Sunnyvale, CA

0:00
0:00
/ mi
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Overall
#0 / 3608
Top 12%
Gender (Male)
#0 / 1949
Top 18%
Division (M25-29)
#0 / 458
Top 17%
Race Day Weather
56°/46°F
overcast clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
1.2M
10:35
Rank: #640
Start1.2M
10:35 | 8:49/mi
4.9M
39:25
Rank: #587 (+53)
1.2M4.9M
28:50 | 7:48/mi
11.9M
1:33:46
Rank: #432 (+155)
4.9M11.9M
54:21 | 7:46/mi
Finish· 13.11 mi
1:43:42
Rank: #433 (-1)
11.9MFinish
9:56 | 8:13/mi

The Course

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Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
1.2M
1.20 mi08:49:0910:358:4910:35
8:49
-
4.9M
4.90 mi09:17:5939:258:0328:50
7:48
-1:01
11.9M
11.90 mi10:12:201:33:467:5354:21
7:46
-0:02
Finish
13.11 mi10:22:161:43:427:559:56
8:13
+0:27

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

7:46 /mi

Average Pace

7:55 /mi

Slowest Pace

8:49 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:33:07

90% of race

Time at Steady Pace

10:35

10% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:55 /mi

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Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨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.

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0mi3.3mi6.6mi9.8mi13.1mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
1.2M
1.20 mi08:49:0910:358:4910:35
8:49
#640
4.9M
4.90 mi09:17:5939:258:0328:50
7:48
#587
11.9M
11.90 mi10:12:201:33:467:5354:21
7:46
#432
Finish
13.11 mi10:22:161:43:427:559:56
8:13
#433
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
1.2M1.20 mi1.20 mi640493112640(Top 18%)493(Top 25%)112(Top 24%)
4.9M4.90 mi3.70 mi587+53451+42102+10586(Top 16%)452(Top 23%)108(Top 24%)
11.9M11.90 mi7.00 mi432+155347+10476+26373(Top 10%)306(Top 16%)68(Top 15%)
Finish13.11 mi1.21 mi433-134779-3485(Top 13%)376(Top 19%)87(Top 19%)

Segment Performance Analysis

Start → 1.2M

0.0 - 1.2 mi

Top 18%
×9stories
+110ft-10ft

Overall

640

Males

493

M25-29

112

1.2M→4.9M

1.2 - 4.9 mi

Top 16%
×14stories
+243ft-126ft

Overall

586

Males

452

M25-29

108

4.9M→11.9M

4.9 - 11.9 mi

Top 10%
×22stories
+186ft-427ft

Overall

373

Males

306

M25-29

68

11.9M→Finish

11.9 - 13.1 mi

Top 13%
×1human
+7ft-8ft

Overall

485

Males

376

M25-29

87

Passing Analysis

Category:
Athletes Passed
266*
Passed By
59
Net Change
+207
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 1.2M----#640
1.2M4.9M98*45+53#640#587
4.9M11.9M1572+155#587#432
11.9MFinish1112-1#432#433
TOTALS266*59+207

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Official Timing Data

The San Francisco Marathon

The San Francisco Marathon