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SF MARATHON 1ST HALF 2026

Shani Boyd

Bib: 19100•F•Age: 31

Novato, CA

0:00
0:00
/ mi
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Overall
#0 / 6575
Gender (Female)
#0 / 2930
Division (F30-34)
#0 / 651
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2M
13:22/mi
26:45
→ flat
4M
15:35/mi
57:54
↑ 67↓ 69
6M
16:25/mi
1:30:45
↑ 1231.1%
8M
8:46/mi
1:48:16
↑ 166↓ 531.1%
9.6M
8:46/mi
2:02:18
↑ 68↓ 1931.5%
10M
8:46/mi
2:05:48
↓ 241.1%
10.5M
8:46/mi
2:10:11
↓ 732.7%
12M
8:46/mi
2:23:19
↑ 2803.2%
Finish· 13.11 mi
15:59/mi
2:41:03
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6M
Distance6.00 mi
Time1:30:45
Pace15:08 /mi
2nd Half✓ Faster
Distance7.11 mi
Time1:10:18
Pace9:53 /mi
📊Negative Split: 22.5% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:16:3326:4513:2226:45
13:22
-
4M
4.00 mi07:47:4257:5414:2931:09
15:35
+2:13
6M
6.00 mi08:20:331:30:4515:0832:51
16:25
+0:50
8M
8.00 mi08:38:041:48:1613:3217:31
8:46
-7:39
9.6M
9.60 mi08:52:062:02:1812:4414:01
8:46
0:00
10M
10.00 mi08:55:362:05:4812:353:30
8:46
0:00
10.5M
10.50 mi08:59:592:10:1112:244:23
8:46
0:00
12M
12.00 mi09:13:072:23:1911:5713:09
8:46
0:00
Finish
13.11 mi09:30:512:41:0312:1717:44
15:59
+7:13

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

8:46 /mi

Average Pace

12:17 /mi

Slowest Pace

16:25 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

52:34

33% of race

Time at Slower Pace

1:48:29

67% of race

Average Pace: 12:17 /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 mi07:16:3326:4513:2226:45
13:22
#6480
4M
4.00 mi07:47:4257:5414:2931:09
15:35
#6533
6M
6.00 mi08:20:331:30:4515:0832:51
16:25
#6550
8M
8.00 mi08:38:041:48:1613:3217:31
8:46
#6247
9.6M
9.60 mi08:52:062:02:1812:4414:01
8:46
#6010
10M
10.00 mi08:55:362:05:4812:353:30
8:46
#5502
10.5M
10.50 mi08:59:592:10:1112:244:23
8:46
#5621
12M
12.00 mi09:13:072:23:1911:5713:09
8:46
#4423
Finish
13.11 mi09:30:512:41:0312:1717:44
15:59
#4828
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF30-34Seg. OverallSeg. FemalesSeg. F30-34
2M2.00 mi2.00 mi6480285763754(Top 0.8%)9(Top 0.3%)1(Top 0.2%)
4M4.00 mi2.00 mi6533-532892-35647-106559(Top 100%)2910(Top 99%)647(Top 99%)
6M6.00 mi2.00 mi6550-172905-13648-16570(Top 100%)2918(Top 100%)650(Top 100%)
8M8.00 mi2.00 mi6247+3032696+209614+341052(Top 16%)191(Top 7%)40(Top 6%)
9.6M9.60 mi1.60 mi6010+2372547+149590+242433(Top 37%)853(Top 29%)184(Top 28%)
10M10.00 mi0.40 mi5502+5082239+308523+6722(Top 0.3%)10(Top 0.3%)1(Top 0.2%)
10.5M10.50 mi0.50 mi5621-1192308-69541-186495(Top 99%)2894(Top 99%)648(Top 100%)
12M12.00 mi1.50 mi4423+11981654+654390+15154(Top 0.8%)9(Top 0.3%)1(Top 0.2%)
Finish13.11 mi1.11 mi4828-4051875-221442-526338(Top 96%)2802(Top 96%)629(Top 97%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 0.8%
~flat
+5ft-3ft

Overall

54

Females

9

F30-34

1

2M→4M

2.0 - 4.0 mi

Top 100%
×4story building
+67ft-69ft

Overall

6559

Females

2910

F30-34

653

4M→6M

4.0 - 6.0 mi

Top 100%
×9story building
+123ft-9ft

Overall

6570

Females

2918

F30-34

656

6M→8M

6.0 - 8.0 mi

Top 16%
×12story building
+166ft-53ft

Overall

1052

Females

191

F30-34

41

8M→9.6M

8.0 - 9.6 mi

Top 37%
×13story building
+68ft-193ft

Overall

2433

Females

853

F30-34

185

9.6M→10M

9.6 - 10.0 mi

Top 0.3%
×2story building
+0ft-24ft

Overall

22

Females

10

F30-34

1

10M→10.5M

10.0 - 10.5 mi

Top 99%
×6story building
+1ft-73ft

Overall

6495

Females

2894

F30-34

650

10.5M→12M

10.5 - 12.0 mi

Top 0.8%
×21story building
+280ft-26ft

Overall

54

Females

9

F30-34

1

12M→Finish

12.0 - 13.1 mi

Top 96%
×7story building
+14ft-89ft

Overall

6338

Females

2802

F30-34

629

Passing Analysis

Category:
Athletes Passed
2301*
Passed By
649
Net Change
+1652
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#6480
2M → 4M10*63-53#6480#6533
4M → 6M21*38-17#6533#6550
6M → 8M303*0+303#6550#6247
8M → 9.6M239*2+237#6247#6010
9.6M → 10M5080+508#6010#5502
10M → 10.5M2121-119#5502#5621
10.5M → 12M1201*3+1198#5621#4423
12M → Finish17*422-405#4423#4828
TOTALS2301*649+1652

* 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

Race Place Events

Race Place Events