Kelvin Chang

Bib: 24620MAge: 25

Redwood City, CA

0:00
0:00
/ mi
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Overall
#0 / 3840
Top 47%
Gender (Male)
#0 / 2065
Division (M25-29)
#0 / 503
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Course Elevation
9292 ft
×24story building
548 ft climb · 587 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2M
8:53/mi
17:47
138680.7%
4M
9:16/mi
36:18
1631.4%
6M
12:01/mi
1:00:21
55830.3%
8M
7:29/mi
1:15:19
651510.8%
10M
10:18/mi
1:35:54
611741.1%
12M
11:24/mi
1:58:43
41530.1%
Finish· 13.11 mi
11:31/mi
2:11:29
→ flat

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:00:21
Pace10:04 /mi
2nd Half
Distance7.11 mi
Time1:11:08
Pace10:00 /mi
📊Positive Split: 17.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi08:56:1617:478:5317:47
8:53
-
4M
4.00 mi09:14:4736:189:0518:31
9:16
+0:23
6M
6.00 mi09:38:501:00:2110:0424:03
12:01
+2:45
8M
8.00 mi09:53:481:15:199:2514:58
7:29
-4:32
10M
10.00 mi10:14:231:35:549:3520:35
10:18
+2:49
12M
12.00 mi10:37:121:58:439:5422:49
11:24
+1:06
Finish
13.11 mi10:49:582:11:2910:0212:46
11:31
+0:07

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

7:29 /mi

Average Pace

10:02 /mi

Slowest Pace

12:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

51:16

39% of race

Time at Steady Pace

20:35

16% of race

Time at Slower Pace

59:38

45% of race

Average Pace: 10:02 /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.

Loading...
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
2M
2.00 mi08:56:1617:478:5317:47
8:53
#1099
4M
4.00 mi09:14:4736:189:0518:31
9:16
#1476
6M
6.00 mi09:38:501:00:2110:0424:03
12:01
#1630
8M
8.00 mi09:53:481:15:199:2514:58
7:29
#1651
10M
10.00 mi10:14:231:35:549:3520:35
10:18
#1681
12M
12.00 mi10:37:121:58:439:5422:49
11:24
#1753
Finish
13.11 mi10:49:582:11:2910:0212:46
11:31
#1820
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
2M2.00 mi2.00 mi10997942062145(Top 56%)1315(Top 64%)340(Top 68%)
4M4.00 mi2.00 mi1476-3771018-224263-571809(Top 47%)1187(Top 57%)298(Top 59%)
6M6.00 mi2.00 mi1630-1541112-94288-251871(Top 49%)1238(Top 60%)317(Top 63%)
8M8.00 mi2.00 mi1651-211120-8292-41777(Top 46%)1178(Top 57%)304(Top 60%)
10M10.00 mi2.00 mi1681-301134-14295-31796(Top 47%)1178(Top 57%)304(Top 60%)
12M12.00 mi2.00 mi1753-721159-25301-62145(Top 56%)1315(Top 64%)340(Top 68%)
Finish13.11 mi1.11 mi1820-671190-31308-72441(Top 64%)1452(Top 70%)367(Top 73%)

Segment Performance Analysis

10M→12M

0.0 - 2.0 mi

Top 56%
×9story building
+138ft-68ft

Overall

2145

Males

1315

M25-29

340

2M→4M

2.0 - 4.0 mi

Top 47%
×13story building
+163ft-19ft

Overall

1809

Males

1187

M25-29

298

4M→6M

4.0 - 6.0 mi

Top 49%
×4story building
+55ft-83ft

Overall

1871

Males

1238

M25-29

317

6M→8M

6.0 - 8.0 mi

Top 46%
×10story building
+65ft-151ft

Overall

1777

Males

1178

M25-29

304

8M→10M

8.0 - 10.0 mi

Top 47%
×10story building
+61ft-174ft

Overall

1796

Males

1178

M25-29

304

10M→12M

10.0 - 12.0 mi

Top 56%
×3story building
+41ft-53ft

Overall

2145

Males

1315

M25-29

340

12M→Finish

12.0 - 13.1 mi

Top 64%
×1human
+6ft-6ft

Overall

2441

Males

1452

M25-29

367

Passing Analysis

Category:
Athletes Passed
100*
Passed By
821
Net Change
-721
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#1099
2M4M17394-377#1099#1476
4M6M12166-154#1476#1630
6M8M2546-21#1630#1651
8M10M20*50-30#1651#1681
10M12M1991-72#1681#1753
12MFinish7*74-67#1753#1820
TOTALS100*821-721

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

📊

Passing Visuals

Category:
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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