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SF MARATHON 1ST HALF 2026

Stephanie Jackson

Bib: 17875•F•Age: 25

Los Altos Hills, CA

0:00
0:00
/ mi
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Overall
#0 / 6575
Gender (Female)
#0 / 2930
Division (F25-29)
#0 / 674
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
10:50/mi
21:40
→ flat
4M
11:28/mi
44:36
↑ 67↓ 69
6M
13:47/mi
1:12:11
↑ 1231.1%
8M
12:54/mi
1:38:00
↑ 166↓ 531.1%
9.6M
9:25/mi
1:53:04
↑ 68↓ 1931.5%
10M
25:07/mi
2:03:06
↓ 241.1%
10.5M
6:26/mi
2:06:19
↓ 732.7%
12M
17:12/mi
2:32:07
↑ 2803.2%
Finish· 13.11 mi
13:04/mi
2:46:37
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:12:11
Pace12:02 /mi
2nd Half
Distance7.11 mi
Time1:34:26
Pace13:17 /mi
📊Positive Split: 30.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:07:5621:4010:5021:40
10:50
-
4M
4.00 mi07:30:5244:3611:0922:56
11:28
+0:38
6M
6.00 mi07:58:271:12:1112:0227:35
13:47
+2:19
8M
8.00 mi08:24:161:38:0012:1525:49
12:54
-0:53
9.6M
9.60 mi08:39:201:53:0411:4715:04
9:25
-3:29
10M
10.00 mi08:49:222:03:0612:1910:02
25:07
+15:42
10.5M
10.50 mi08:52:352:06:1912:023:13
6:26
-18:41
12M
12.00 mi09:18:232:32:0712:4125:48
17:12
+10:46
Finish
13.11 mi09:32:532:46:3712:4314:30
13:04
-4:08

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

6:26 /mi

Average Pace

12:43 /mi

Slowest Pace

25:07 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

18:17

11% of race

Time at Steady Pace

1:52:30

68% of race

Time at Slower Pace

35:50

22% of race

Average Pace: 12:43 /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 mi07:07:5621:4010:5021:40
10:50
#4453
4M
4.00 mi07:30:5244:3611:0922:56
11:28
#4651
6M
6.00 mi07:58:271:12:1112:0227:35
13:47
#5471
8M
8.00 mi08:24:161:38:0012:1525:49
12:54
#5471
9.6M
9.60 mi08:39:201:53:0411:4715:04
9:25
#5191
10M
10.00 mi08:49:222:03:0612:1910:02
25:07
#5258
10.5M
10.50 mi08:52:352:06:1912:023:13
6:26
#5272
12M
12.00 mi09:18:232:32:0712:4125:48
17:12
#5237
Finish
13.11 mi09:32:532:46:3712:4314:30
13:04
#5256
Faster pace
Steady pace
Slower pace
Featured Segment

Garmin Challenge

Top 86%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

13:15

Segment Time

14:44/mi

Pace

0.90 mi

Distance

Overall

5654

Women

2394

Division

573

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
2M2.00 mi2.00 mi445316354144973(Top 76%)2042(Top 70%)493(Top 73%)
4M4.00 mi2.00 mi4651-1981741-106435-214825(Top 73%)1865(Top 64%)459(Top 68%)
6M6.00 mi2.00 mi5471-8202206-465541-1066208(Top 94%)2673(Top 91%)627(Top 93%)
8M8.00 mi2.00 mi54712200+6535+65369(Top 82%)2148(Top 73%)501(Top 74%)
9.6M9.60 mi1.60 mi5191+2802045+155505+303270(Top 50%)1232(Top 42%)301(Top 45%)
10M10.00 mi0.40 mi5258-672084-39513-85644(Top 86%)2410(Top 82%)564(Top 84%)
10.5M10.50 mi0.50 mi5272-142096-12514-15818(Top 88%)2490(Top 85%)589(Top 87%)
12M12.00 mi1.50 mi5237+352095+1509+54973(Top 76%)2042(Top 70%)493(Top 73%)
Finish13.11 mi1.11 mi5256-192118-23515-65602(Top 85%)2401(Top 82%)580(Top 86%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 76%
~flat
+5ft-3ft

Overall

4973

Females

2042

F25-29

493

2M→4M

2.0 - 4.0 mi

Top 73%
×4story building
+67ft-69ft

Overall

4825

Females

1865

F25-29

460

4M→6M

4.0 - 6.0 mi

Top 94%
×9story building
+123ft-9ft

Overall

6208

Females

2673

F25-29

628

6M→8M

6.0 - 8.0 mi

Top 82%
×12story building
+166ft-53ft

Overall

5369

Females

2148

F25-29

502

8M→9.6M

8.0 - 9.6 mi

Top 50%
×13story building
+68ft-193ft

Overall

3270

Females

1232

F25-29

301

9.6M→10M

9.6 - 10.0 mi

Top 86%
×2story building
+0ft-24ft

Overall

5644

Females

2410

F25-29

565

10M→10.5M

10.0 - 10.5 mi

Top 88%
×6story building
+1ft-73ft

Overall

5818

Females

2490

F25-29

590

10.5M→12M

10.5 - 12.0 mi

Top 76%
×21story building
+280ft-26ft

Overall

4973

Females

2042

F25-29

493

12M→Finish

12.0 - 13.1 mi

Top 85%
×7story building
+14ft-89ft

Overall

5602

Females

2401

F25-29

580

Passing Analysis

Category:
Athletes Passed
738*
Passed By
1541
Net Change
-803
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#4453
2M → 4M117315-198#4453#4651
4M → 6M18*838-820#4651#5471
6M → 8M111*1110#5471#5471
8M → 9.6M29212+280#5471#5191
9.6M → 10M2592-67#5191#5258
10M → 10.5M1024-14#5258#5272
10.5M → 12M118*83+35#5272#5237
12M → Finish47*66-19#5237#5256
TOTALS738*1541-803

* 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