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SF MARATHON 1ST HALF 2026

Rebecca Shaw

Bib: 17929•F•Age: 30

Santa Monica, CA

0:00
0:00
/ mi
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Overall
#0 / 6575
Gender (Female)
#0 / 2930
Top 39%
Division (F30-34)
#0 / 651
Top 39%
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
10:48/mi
21:37
→ flat
4M
10:56/mi
43:28
↑ 67↓ 69
6M
10:29/mi
1:04:27
↑ 1231.1%
8M
10:07/mi
1:24:42
↑ 166↓ 531.1%
9.6M
10:07/mi
1:40:54
↑ 68↓ 1931.5%
10M
19:44/mi
1:48:47
↓ 241.1%
10.5M
5:24/mi
1:51:29
↓ 732.7%
12M
14:13/mi
2:12:49
↑ 2803.2%
Finish· 13.11 mi
10:25/mi
2:24:22
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:04:27
Pace10:45 /mi
2nd Half
Distance7.11 mi
Time1:19:55
Pace11:14 /mi
📊Positive Split: 24.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:04:4021:3710:4821:37
10:48
-
4M
4.00 mi07:26:3143:2810:5221:51
10:56
+0:08
6M
6.00 mi07:47:301:04:2710:4520:59
10:29
-0:27
8M
8.00 mi08:07:451:24:4210:3520:15
10:07
-0:22
9.6M
9.60 mi08:23:571:40:5410:3116:12
10:07
0:00
10M
10.00 mi08:31:501:48:4710:537:53
19:44
+9:37
10.5M
10.50 mi08:34:321:51:2910:372:42
5:24
-14:20
12M
12.00 mi08:55:522:12:4911:0421:20
14:13
+8:49
Finish
13.11 mi09:07:252:24:2211:0111:33
10:25
-3:48

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

5:24 /mi

Average Pace

11:01 /mi

Slowest Pace

19:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:42

2% of race

Time at Steady Pace

1:52:27

78% of race

Time at Slower Pace

29:13

20% of race

Average Pace: 11:01 /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 mi07:04:4021:3710:4821:37
10:48
#4386
4M
4.00 mi07:26:3143:2810:5221:51
10:56
#4222
6M
6.00 mi07:47:301:04:2710:4520:59
10:29
#3841
8M
8.00 mi08:07:451:24:4210:3520:15
10:07
#3413
9.6M
9.60 mi08:23:571:40:5410:3116:12
10:07
#3519
10M
10.00 mi08:31:501:48:4710:537:53
19:44
#3484
10.5M
10.50 mi08:34:321:51:2910:372:42
5:24
#3500
12M
12.00 mi08:55:522:12:4911:0421:20
14:13
#3373
Finish
13.11 mi09:07:252:24:2211:0111:33
10:25
#3365
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 52%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

10:35

Segment Time

11:46/mi

Pace

0.90 mi

Distance

Overall

3410

Women

1181

Division

271

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF30-34Seg. OverallSeg. FemalesSeg. F30-34
2M2.00 mi2.00 mi438616013702929(Top 45%)980(Top 33%)218(Top 33%)
4M4.00 mi2.00 mi4222+1641523+78349+214117(Top 63%)1464(Top 50%)329(Top 51%)
6M6.00 mi2.00 mi3841+3811329+194305+443298(Top 50%)1081(Top 37%)245(Top 38%)
8M8.00 mi2.00 mi3413+4281126+203262+432529(Top 38%)701(Top 24%)163(Top 25%)
9.6M9.60 mi1.60 mi3519-1061177-51271-94155(Top 63%)1641(Top 56%)372(Top 57%)
10M10.00 mi0.40 mi3484+351165+12265+63336(Top 51%)1153(Top 39%)261(Top 40%)
10.5M10.50 mi0.50 mi3500-161171-6268-34120(Top 63%)1519(Top 52%)348(Top 53%)
12M12.00 mi1.50 mi3373+1271128+43259+92929(Top 45%)980(Top 33%)218(Top 33%)
Finish13.11 mi1.11 mi3365+81129-1257+23370(Top 51%)1191(Top 41%)267(Top 41%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 45%
~flat
+5ft-3ft

Overall

2929

Females

980

F30-34

219

2M→4M

2.0 - 4.0 mi

Top 63%
×4story building
+67ft-69ft

Overall

4117

Females

1464

F30-34

332

4M→6M

4.0 - 6.0 mi

Top 50%
×9story building
+123ft-9ft

Overall

3298

Females

1081

F30-34

247

6M→8M

6.0 - 8.0 mi

Top 38%
×12story building
+166ft-53ft

Overall

2529

Females

701

F30-34

165

8M→9.6M

8.0 - 9.6 mi

Top 63%
×13story building
+68ft-193ft

Overall

4155

Females

1641

F30-34

374

9.6M→10M

9.6 - 10.0 mi

Top 51%
×2story building
+0ft-24ft

Overall

3336

Females

1153

F30-34

263

10M→10.5M

10.0 - 10.5 mi

Top 63%
×6story building
+1ft-73ft

Overall

4120

Females

1519

F30-34

350

10.5M→12M

10.5 - 12.0 mi

Top 45%
×21story building
+280ft-26ft

Overall

2929

Females

980

F30-34

219

12M→Finish

12.0 - 13.1 mi

Top 51%
×7story building
+14ft-89ft

Overall

3370

Females

1191

F30-34

267

Passing Analysis

Category:
Athletes Passed
1429*
Passed By
408
Net Change
+1021
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#4386
2M → 4M270106+164#4386#4222
4M → 6M388*7+381#4222#3841
6M → 8M438*10+428#3841#3413
8M → 9.6M61167-106#3413#3519
9.6M → 10M5520+35#3519#3484
10M → 10.5M622-16#3484#3500
10.5M → 12M16538+127#3500#3373
12M → Finish46*38+8#3373#3365
TOTALS1429*408+1021

* 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