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SF MARATHON 1ST HALF 2026

Stefanie Chan

Bib: 16319•F•Age: 37

Union City, CA

0:00
0:00
/ mi
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Overall
#0 / 6575
Gender (Female)
#0 / 2930
Division (F35-39)
#0 / 388
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
2M
22:20
Rank: #4978
Start → 2M
11:10/mi
22:20 split
4M
44:20
Rank: #4534 (+444)
2M → 4M
11:00/mi
22:00 split
6M
1:06:51
Rank: #4413 (+121)
4M → 6M
11:15/mi
22:31 split
8M
1:29:12
Rank: #4156 (+257)
6M → 8M
11:10/mi
22:21 split
9.6M
1:47:04
Rank: #4375 (-219)
8M → 9.6M
11:10/mi
17:52 split
10M
1:55:56
Rank: #4383 (-8)
9.6M → 10M
22:12/mi
8:52 split
10.5M
1:58:44
Rank: #4394 (-11)
10M → 10.5M
5:36/mi
2:48 split
12M
2:23:42
Rank: #4457 (-63)
10.5M → 12M
16:39/mi
24:58 split
Finish· 13.11 mi
2:36:10
Rank: #4419 (+38)
12M → Finish
11:14/mi
12:28 split

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:06:51
Pace11:09 /mi
2nd Half
Distance7.11 mi
Time1:29:19
Pace12:34 /mi
📊Positive Split: 33.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:08:2922:2011:1022:20
11:10
-
4M
4.00 mi07:30:2944:2011:0522:00
11:00
-0:10
6M
6.00 mi07:53:001:06:5111:0922:31
11:15
+0:15
8M
8.00 mi08:15:211:29:1211:0922:21
11:10
-0:05
9.6M
9.60 mi08:33:131:47:0411:0917:52
11:10
0:00
10M
10.00 mi08:42:051:55:5611:368:52
22:12
+11:02
10.5M
10.50 mi08:44:531:58:4411:182:48
5:36
-16:36
12M
12.00 mi09:09:512:23:4211:5924:58
16:39
+11:03
Finish
13.11 mi09:22:192:36:1011:5512:28
11:14
-5:25

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

5:36 /mi

Average Pace

11:55 /mi

Slowest Pace

22:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:48

2% of race

Time at Steady Pace

1:59:32

77% of race

Time at Slower Pace

33:50

22% of race

Average Pace: 11:55 /mi

Loading chart...
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 mi07:08:2922:2011:1022:20
11:10
#4978
4M
4.00 mi07:30:2944:2011:0522:00
11:00
#4534
6M
6.00 mi07:53:001:06:5111:0922:31
11:15
#4413
8M
8.00 mi08:15:211:29:1211:0922:21
11:10
#4156
9.6M
9.60 mi08:33:131:47:0411:0917:52
11:10
#4375
10M
10.00 mi08:42:051:55:5611:368:52
22:12
#4383
10.5M
10.50 mi08:44:531:58:4411:182:48
5:36
#4394
12M
12.00 mi09:09:512:23:4211:5924:58
16:39
#4457
Finish
13.11 mi09:22:192:36:1011:5512:28
11:14
#4419
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 69%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

11:40

Segment Time

12:58/mi

Pace

0.90 mi

Distance

Overall

4539

Women

1788

Division

210

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF35-39Seg. OverallSeg. FemalesSeg. F35-39
2M2.00 mi2.00 mi497819382414636(Top 71%)1840(Top 63%)232(Top 60%)
4M4.00 mi2.00 mi4534+4441675+263208+334192(Top 64%)1508(Top 51%)188(Top 48%)
6M6.00 mi2.00 mi4413+1211621+54200+84190(Top 64%)1515(Top 52%)190(Top 49%)
8M8.00 mi2.00 mi4156+2571464+157186+143732(Top 57%)1278(Top 44%)165(Top 43%)
9.6M9.60 mi1.60 mi4375-2191606-142199-135195(Top 79%)2171(Top 74%)273(Top 70%)
10M10.00 mi0.40 mi4383-81623-17200-14619(Top 70%)1829(Top 62%)218(Top 56%)
10.5M10.50 mi0.50 mi4394-111626-3197+34640(Top 71%)1797(Top 61%)224(Top 58%)
12M12.00 mi1.50 mi4457-631675-49208-114636(Top 71%)1840(Top 63%)232(Top 60%)
Finish13.11 mi1.11 mi4419+381656+19205+34280(Top 65%)1655(Top 56%)215(Top 55%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 71%
~flat
+5ft-3ft

Overall

4636

Females

1840

F35-39

232

2M→4M

2.0 - 4.0 mi

Top 64%
×4story building
+67ft-69ft

Overall

4192

Females

1508

F35-39

188

4M→6M

4.0 - 6.0 mi

Top 64%
×9story building
+123ft-9ft

Overall

4190

Females

1515

F35-39

190

6M→8M

6.0 - 8.0 mi

Top 57%
×12story building
+166ft-53ft

Overall

3732

Females

1278

F35-39

165

8M→9.6M

8.0 - 9.6 mi

Top 79%
×13story building
+68ft-193ft

Overall

5195

Females

2171

F35-39

273

9.6M→10M

9.6 - 10.0 mi

Top 70%
×2story building
+0ft-24ft

Overall

4619

Females

1829

F35-39

218

10M→10.5M

10.0 - 10.5 mi

Top 71%
×6story building
+1ft-73ft

Overall

4640

Females

1797

F35-39

224

10.5M→12M

10.5 - 12.0 mi

Top 71%
×21story building
+280ft-26ft

Overall

4636

Females

1840

F35-39

232

12M→Finish

12.0 - 13.1 mi

Top 65%
×7story building
+14ft-89ft

Overall

4280

Females

1655

F35-39

215

Passing Analysis

Category:
Athletes Passed
1223*
Passed By
664
Net Change
+559
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#4978
2M → 4M48036+444#4978#4534
4M → 6M208*87+121#4534#4413
6M → 8M310*53+257#4413#4156
8M → 9.6M31250-219#4156#4375
9.6M → 10M4654-8#4375#4383
10M → 10.5M819-11#4383#4394
10.5M → 12M74*137-63#4394#4457
12M → Finish66*28+38#4457#4419
TOTALS1223*664+559

* 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

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