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SF MARATHON 1ST HALF 2026

Chelsea Henshaw

Bib: 16722•F•Age: 26

London

0:00
0:00
/ mi
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Overall
#0 / 6575
Top 38%
Gender (Female)
#0 / 2930
Top 26%
Division (F25-29)
#0 / 674
Top 28%
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
10:19/mi
20:39
→ flat
4M
10:04/mi
40:46
↑ 67↓ 69
6M
10:04/mi
1:00:53
↑ 1231.1%
8M
10:46/mi
1:22:26
↑ 166↓ 531.1%
9.6M
7:45/mi
1:34:50
↑ 68↓ 1931.5%
10M
18:29/mi
1:42:13
↓ 241.1%
10.5M
4:50/mi
1:44:38
↓ 732.7%
12M
13:49/mi
2:05:22
↑ 2803.2%
Finish· 13.11 mi
9:10/mi
2:15:32
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:00:53
Pace10:09 /mi
2nd Half
Distance7.11 mi
Time1:14:39
Pace10:30 /mi
📊Positive Split: 22.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:01:3920:3910:1920:39
10:19
-
4M
4.00 mi07:21:4640:4610:1120:07
10:04
-0:15
6M
6.00 mi07:41:531:00:5310:0920:07
10:04
0:00
8M
8.00 mi08:03:261:22:2610:1821:33
10:46
+0:42
9.6M
9.60 mi08:15:501:34:509:5312:24
7:45
-3:01
10M
10.00 mi08:23:131:42:1310:137:23
18:29
+10:44
10.5M
10.50 mi08:25:381:44:389:582:25
4:50
-13:39
12M
12.00 mi08:46:222:05:2210:2720:44
13:49
+8:59
Finish
13.11 mi08:56:322:15:3210:2010:10
9:10
-4:39

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

4:50 /mi

Average Pace

10:20 /mi

Slowest Pace

18:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

14:49

11% of race

Time at Steady Pace

1:32:36

68% of race

Time at Slower Pace

28:07

21% of race

Average Pace: 10:20 /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 mi07:01:3920:3910:1920:39
10:19
#3605
4M
4.00 mi07:21:4640:4610:1120:07
10:04
#3172
6M
6.00 mi07:41:531:00:5310:0920:07
10:04
#2990
8M
8.00 mi08:03:261:22:2610:1821:33
10:46
#3040
9.6M
9.60 mi08:15:501:34:509:5312:24
7:45
#2660
10M
10.00 mi08:23:131:42:1310:137:23
18:29
#2631
10.5M
10.50 mi08:25:381:44:389:582:25
4:50
#2629
12M
12.00 mi08:46:222:05:2210:2720:44
13:49
#2582
Finish
13.11 mi08:56:322:15:3210:2010:10
9:10
#2507
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 40%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

9:48

Segment Time

10:54/mi

Pace

0.90 mi

Distance

Overall

2611

Women

809

Division

205

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
2M2.00 mi2.00 mi360512282982581(Top 39%)824(Top 28%)217(Top 32%)
4M4.00 mi2.00 mi3172+4331020+208242+562885(Top 44%)891(Top 30%)212(Top 31%)
6M6.00 mi2.00 mi2990+182935+85228+142756(Top 42%)823(Top 28%)206(Top 31%)
8M8.00 mi2.00 mi3040-50932+3227+13272(Top 50%)1037(Top 35%)254(Top 38%)
9.6M9.60 mi1.60 mi2660+380799+133197+301288(Top 20%)427(Top 15%)112(Top 17%)
10M10.00 mi0.40 mi2631+29787+12192+52676(Top 41%)856(Top 29%)207(Top 31%)
10.5M10.50 mi0.50 mi2629+2784+31922699(Top 41%)858(Top 29%)211(Top 31%)
12M12.00 mi1.50 mi2582+47784195-32581(Top 39%)824(Top 28%)217(Top 32%)
Finish13.11 mi1.11 mi2507+75750+34191+41843(Top 28%)500(Top 17%)134(Top 20%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 39%
~flat
+5ft-3ft

Overall

2581

Females

824

F25-29

217

2M→4M

2.0 - 4.0 mi

Top 44%
×4story building
+67ft-69ft

Overall

2885

Females

891

F25-29

212

4M→6M

4.0 - 6.0 mi

Top 42%
×9story building
+123ft-9ft

Overall

2756

Females

823

F25-29

206

6M→8M

6.0 - 8.0 mi

Top 50%
×12story building
+166ft-53ft

Overall

3272

Females

1037

F25-29

254

8M→9.6M

8.0 - 9.6 mi

Top 20%
×13story building
+68ft-193ft

Overall

1288

Females

427

F25-29

112

9.6M→10M

9.6 - 10.0 mi

Top 41%
×2story building
+0ft-24ft

Overall

2676

Females

856

F25-29

207

10M→10.5M

10.0 - 10.5 mi

Top 41%
×6story building
+1ft-73ft

Overall

2699

Females

858

F25-29

211

10.5M→12M

10.5 - 12.0 mi

Top 39%
×21story building
+280ft-26ft

Overall

2581

Females

824

F25-29

217

12M→Finish

12.0 - 13.1 mi

Top 28%
×7story building
+14ft-89ft

Overall

1843

Females

500

F25-29

134

Passing Analysis

Category:
Athletes Passed
1447*
Passed By
349
Net Change
+1098
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#3605
2M → 4M46633+433#3605#3172
4M → 6M22644+182#3172#2990
6M → 8M120*170-50#2990#3040
8M → 9.6M39010+380#3040#2660
9.6M → 10M5122+29#2660#2631
10M → 10.5M97+2#2631#2629
10.5M → 12M10457+47#2629#2582
12M → Finish81*6+75#2582#2507
TOTALS1447*349+1098

* 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