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SF MARATHON 2ND HALF 2026

Kathleen Chang

Bib: 22911•F•Age: 27

Stanford, CA

0:00
0:00
/ mi
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Overall
#0 / 3840
Top 22%
Gender (Female)
#0 / 1760
Top 12%
Division (F25-29)
#0 / 495
Top 12%
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Course Elevation
9–292 ft
≈
×24story building
•▲ 548 ft climb · ▼ 587 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2M
8:34/mi
17:09
↑ 138↓ 680.7%
4M
7:53/mi
32:54
↑ 1631.4%
6M
10:23/mi
53:41
↑ 55↓ 830.3%
8M
6:23/mi
1:06:27
↑ 65↓ 1510.8%
10M
9:04/mi
1:24:34
↑ 61↓ 1741.1%
12M
9:26/mi
1:43:27
↑ 41↓ 530.1%
Finish· 13.11 mi
9:20/mi
1:53:48
→ flat

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time53:41
Pace8:57 /mi
2nd Half
Distance7.11 mi
Time1:00:07
Pace8:27 /mi
📊Positive Split: 12.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi08:51:3517:098:3417:09
8:34
-
4M
4.00 mi09:07:2032:548:1415:45
7:53
-0:41
6M
6.00 mi09:28:0753:418:5720:47
10:23
+2:30
8M
8.00 mi09:40:531:06:278:1812:46
6:23
-4:00
10M
10.00 mi09:59:001:24:348:2718:07
9:04
+2:41
12M
12.00 mi10:17:531:43:278:3718:53
9:26
+0:22
Finish
13.11 mi10:28:141:53:488:4110:21
9:20
-0:06

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

6:23 /mi

Average Pace

8:41 /mi

Slowest Pace

10:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

28:31

25% of race

Time at Steady Pace

1:04:30

57% of race

Time at Slower Pace

20:47

18% of race

Average Pace: 8:41 /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 mi08:51:3517:098:3417:09
8:34
#844
4M
4.00 mi09:07:2032:548:1415:45
7:53
#771
6M
6.00 mi09:28:0753:418:5720:47
10:23
#777
8M
8.00 mi09:40:531:06:278:1812:46
6:23
#756
10M
10.00 mi09:59:001:24:348:2718:07
9:04
#801
12M
12.00 mi10:17:531:43:278:3718:53
9:26
#832
Finish
13.11 mi10:28:141:53:488:4110:21
9:20
#841
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
2M2.00 mi2.00 mi844204521012(Top 26%)296(Top 17%)77(Top 16%)
4M4.00 mi2.00 mi771+73183+2151+1739(Top 19%)180(Top 10%)51(Top 10%)
6M6.00 mi2.00 mi777-618353-2804(Top 21%)190(Top 11%)55(Top 11%)
8M8.00 mi2.00 mi756+21175+849+4724(Top 19%)167(Top 9%)49(Top 10%)
10M10.00 mi2.00 mi801-45196-2159-10981(Top 26%)267(Top 15%)73(Top 15%)
12M12.00 mi2.00 mi832-31210-1461-21012(Top 26%)296(Top 17%)77(Top 16%)
Finish13.11 mi1.11 mi841-9212-2611163(Top 30%)359(Top 20%)102(Top 21%)

Segment Performance Analysis

10M→12M

0.0 - 2.0 mi

Top 26%
×9story building
+138ft-68ft

Overall

1012

Females

296

F25-29

78

2M→4M

2.0 - 4.0 mi

Top 19%
×13story building
+163ft-19ft

Overall

739

Females

180

F25-29

51

4M→6M

4.0 - 6.0 mi

Top 21%
×4story building
+55ft-83ft

Overall

804

Females

190

F25-29

56

6M→8M

6.0 - 8.0 mi

Top 19%
×10story building
+65ft-151ft

Overall

724

Females

167

F25-29

49

8M→10M

8.0 - 10.0 mi

Top 26%
×10story building
+61ft-174ft

Overall

981

Females

267

F25-29

74

10M→12M

10.0 - 12.0 mi

Top 26%
×3story building
+41ft-53ft

Overall

1012

Females

296

F25-29

78

12M→Finish

12.0 - 13.1 mi

Top 30%
×1human
+6ft-6ft

Overall

1163

Females

359

F25-29

102

Passing Analysis

Category:
Athletes Passed
176*
Passed By
173
Net Change
+3
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#844
2M → 4M8512+73#844#771
4M → 6M3238-6#771#777
6M → 8M276+21#777#756
8M → 10M13*58-45#756#801
10M → 12M738-31#801#832
12M → Finish1221-9#832#841
TOTALS176*173+3

* 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