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SF MARATHON 2ND HALF 2026

Justin Chang

Bib: 301•M•Age: 27

San Gabriel, CA

0:00
0:00
/ mi
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Overall
#0 / 3840
Top 1%
Gender (Male)
#0 / 2065
Top 2%
Division (M25-29)
#0 / 503
Top 2%
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
2M
11:48
Rank: #27
Start → 2M
11:48 | 5:54/mi
4M
22:56
Rank: #24 (+3)
2M → 4M
11:08 | 5:34/mi
6M
41:50
Rank: #71 (-47)
4M → 6M
18:54 | 9:27/mi
8M
50:36
Rank: #54 (+17)
6M → 8M
8:46 | 4:23/mi
10M
1:02:56
Rank: #47 (+7)
8M → 10M
12:20 | 6:10/mi
12M
1:16:02
Rank: #45 (+2)
10M → 12M
13:06 | 6:33/mi
Finish· 13.11 mi
1:22:44
Rank: #42 (+3)
12M → Finish
6:42 | 6:02/mi

The Course

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Half Splits

1st Half· via 6M
Distance6.00 mi
Time41:50
Pace6:58 /mi
2nd Half✓ Faster
Distance7.11 mi
Time40:54
Pace5:45 /mi
📊Negative Split: 2.2% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi08:41:4911:485:5411:48
5:54
-
4M
4.00 mi08:52:5722:565:4411:08
5:34
-0:20
6M
6.00 mi09:11:5141:506:5818:54
9:27
+3:53
8M
8.00 mi09:20:3750:366:198:46
4:23
-5:04
10M
10.00 mi09:32:571:02:566:1812:20
6:10
+1:47
12M
12.00 mi09:46:031:16:026:2013:06
6:33
+0:23
Finish
13.11 mi09:52:451:22:446:196:42
6:02
-0:31

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

4:23 /mi

Average Pace

6:19 /mi

Slowest Pace

9:27 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

8:46

11% of race

Time at Steady Pace

55:04

67% of race

Time at Slower Pace

18:54

23% of race

Average Pace: 6:19 /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 mi08:41:4911:485:5411:48
5:54
#27
4M
4.00 mi08:52:5722:565:4411:08
5:34
#24
6M
6.00 mi09:11:5141:506:5818:54
9:27
#71
8M
8.00 mi09:20:3750:366:198:46
4:23
#54
10M
10.00 mi09:32:571:02:566:1812:20
6:10
#47
12M
12.00 mi09:46:031:16:026:2013:06
6:33
#45
Finish
13.11 mi09:52:451:22:446:196:42
6:02
#42
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
2M2.00 mi2.00 mi27241037(Top 1.0%)34(Top 2%)13(Top 3%)
4M4.00 mi2.00 mi24+322+29+125(Top 0.7%)23(Top 1%)9(Top 2%)
6M6.00 mi2.00 mi71-4760-3819-10352(Top 9%)279(Top 14%)74(Top 15%)
8M8.00 mi2.00 mi54+1747+1316+315(Top 0.4%)14(Top 0.7%)8(Top 2%)
10M10.00 mi2.00 mi47+740+714+232(Top 0.8%)30(Top 1%)12(Top 2%)
12M12.00 mi2.00 mi45+239+113+137(Top 1.0%)34(Top 2%)13(Top 3%)
Finish13.11 mi1.11 mi42+336+312+118(Top 0.5%)15(Top 0.7%)5(Top 1.0%)

Segment Performance Analysis

10M→12M

0.0 - 2.0 mi

Top 1.0%
×9stories
+138ft-68ft

Overall

37

Males

34

M25-29

13

2M→4M

2.0 - 4.0 mi

Top 0.7%
×13stories
+163ft-19ft

Overall

25

Males

23

M25-29

9

4M→6M

4.0 - 6.0 mi

Top 9%
×4stories
+55ft-83ft

Overall

352

Males

279

M25-29

74

6M→8M

6.0 - 8.0 mi

Top 0.4%
×10stories
+65ft-151ft

Overall

15

Males

14

M25-29

8

8M→10M

8.0 - 10.0 mi

Top 0.8%
×10stories
+61ft-174ft

Overall

32

Males

30

M25-29

12

10M→12M

10.0 - 12.0 mi

Top 1.0%
×3stories
+41ft-53ft

Overall

37

Males

34

M25-29

13

12M→Finish

12.0 - 13.1 mi

Top 0.5%
×1human
+6ft-6ft

Overall

18

Males

15

M25-29

5

Passing Analysis

Category:
Athletes Passed
33
Passed By
48
Net Change
-15
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#27
2M → 4M30+3#27#24
4M → 6M148-47#24#71
6M → 8M170+17#71#54
8M → 10M70+7#54#47
10M → 12M20+2#47#45
12M → Finish30+3#45#42
TOTALS3348-15
📊

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