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SF MARATHON 2ND HALF 2026

Heidi Chang

Bib: 25296•F•Age: 26

Chicago, IL

0:00
0:00
/ mi
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Overall
#0 / 3840
Gender (Female)
#0 / 1760
Top 39%
Division (F25-29)
#0 / 495
Top 40%
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
2M
20:08
Rank: #2089
Start → 2M
10:04/mi
20:08 split
4M
39:18
Rank: #2037 (+52)
2M → 4M
9:35/mi
19:10 split
6M
1:04:23
Rank: #2090 (-53)
4M → 6M
12:32/mi
25:05 split
8M
1:19:24
Rank: #2017 (+73)
6M → 8M
7:30/mi
15:01 split
10M
1:40:51
Rank: #2011 (+6)
8M → 10M
10:44/mi
21:27 split
12M
2:03:21
Rank: #2002 (+9)
10M → 12M
11:15/mi
22:30 split
Finish· 13.11 mi
2:15:02
Rank: #1975 (+27)
12M → Finish
10:32/mi
11:41 split

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:04:23
Pace10:44 /mi
2nd Half
Distance7.11 mi
Time1:10:39
Pace9:56 /mi
📊Positive Split: 9.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi09:09:1920:0810:0420:08
10:04
-
4M
4.00 mi09:28:2939:189:5019:10
9:35
-0:29
6M
6.00 mi09:53:341:04:2310:4425:05
12:32
+2:57
8M
8.00 mi10:08:351:19:249:5515:01
7:30
-5:02
10M
10.00 mi10:30:021:40:5110:0521:27
10:44
+3:14
12M
12.00 mi10:52:322:03:2110:1722:30
11:15
+0:31
Finish
13.11 mi11:04:132:15:0210:1811:41
10:32
-0:43

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

7:30 /mi

Average Pace

10:18 /mi

Slowest Pace

12:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

34:11

25% of race

Time at Steady Pace

1:15:46

56% of race

Time at Slower Pace

25:05

19% of race

Average Pace: 10:18 /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 mi09:09:1920:0810:0420:08
10:04
#2089
4M
4.00 mi09:28:2939:189:5019:10
9:35
#2037
6M
6.00 mi09:53:341:04:2310:4425:05
12:32
#2090
8M
8.00 mi10:08:351:19:249:5515:01
7:30
#2017
10M
10.00 mi10:30:021:40:5110:0521:27
10:44
#2011
12M
12.00 mi10:52:322:03:2110:1722:30
11:15
#2002
Finish
13.11 mi11:04:132:15:0210:1811:41
10:32
#1975
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
2M2.00 mi2.00 mi20897392072052(Top 53%)764(Top 43%)226(Top 46%)
4M4.00 mi2.00 mi2037+52709+30202+52048(Top 53%)722(Top 41%)205(Top 41%)
6M6.00 mi2.00 mi2090-53730-21207-52180(Top 57%)783(Top 44%)229(Top 46%)
8M8.00 mi2.00 mi2017+73696+34197+101800(Top 47%)596(Top 34%)171(Top 35%)
10M10.00 mi2.00 mi2011+6694+2203-62053(Top 53%)730(Top 41%)216(Top 44%)
12M12.00 mi2.00 mi2002+9701-7202+12052(Top 53%)764(Top 43%)226(Top 46%)
Finish13.11 mi1.11 mi1975+27686+15199+31878(Top 49%)688(Top 39%)204(Top 41%)

Segment Performance Analysis

10M→12M

0.0 - 2.0 mi

Top 53%
×9story building
+138ft-68ft

Overall

2052

Females

764

F25-29

227

2M→4M

2.0 - 4.0 mi

Top 53%
×13story building
+163ft-19ft

Overall

2048

Females

722

F25-29

205

4M→6M

4.0 - 6.0 mi

Top 57%
×4story building
+55ft-83ft

Overall

2180

Females

783

F25-29

230

6M→8M

6.0 - 8.0 mi

Top 47%
×10story building
+65ft-151ft

Overall

1800

Females

596

F25-29

171

8M→10M

8.0 - 10.0 mi

Top 53%
×10story building
+61ft-174ft

Overall

2053

Females

730

F25-29

217

10M→12M

10.0 - 12.0 mi

Top 53%
×3story building
+41ft-53ft

Overall

2052

Females

764

F25-29

227

12M→Finish

12.0 - 13.1 mi

Top 49%
×1human
+6ft-6ft

Overall

1878

Females

688

F25-29

204

Passing Analysis

Category:
Athletes Passed
357*
Passed By
243
Net Change
+114
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#2089
2M → 4M11462+52#2089#2037
4M → 6M3689-53#2037#2090
6M → 8M763+73#2090#2017
8M → 10M50*44+6#2017#2011
10M → 12M4233+9#2011#2002
12M → Finish39*12+27#2002#1975
TOTALS357*243+114

* 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