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SF MARATHON 1ST HALF 2025

Jennifer He

Mountain View, CA

Bib: 15866 F 25

0:00
0:00
/ mi
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Overall
#0 / 7100
Gender (Female)
#0 / 3107
Division (F25-29)
#0 / 761
Race Day Weather
56°/46°F
light rain

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
1.81M
10:55/mi
19:45
→ flat
5.34M
10:59/mi
58:30
↑ 80↓ 74
6.15M
11:40/mi
1:07:57
↑ 126
10.54M
10:59/mi
1:56:08
↑ 230↓ 361
11.05M
14:54/mi
2:03:44
↑ 172
Finish· 13.11 mi
11:11/mi
2:26:45
↑ 97↓ 114
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6.15M
1:07:5711:03 /mi⚡ faster
2nd Half
1:18:4811:19 /mi+16.0%
Positive split — 16.0% slower in the second half
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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
1.81M
19:4510:551.81 mi19:45
10:55
-
5.34M
58:3010:573.53 mi38:45
10:59
+0:04
6.15M
1:07:5711:030.81 mi9:27
11:40
+0:41
10.54M
1:56:0811:014.39 mi48:11
10:59
-0:41
11.05M
2:03:4411:120.51 mi7:36
14:54
+3:55
Finish(13.11 mi)
2:26:4511:122.06 mi23:01
11:11
-3:43
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

10:55 /mi

Average Pace

11:12 /mi

Slowest Pace

14:54 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:19:09

95% of race

Time at Slower Pace

7:36

5% of race

Average Pace: 11:12 /mi

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Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi3.3mi6.6mi9.8mi13.1mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
1.81M1.81 mi5582220257855822202578
5.34M3.53 mi5134+4481970+232524+5449981896512
6.15M0.81 mi5092+421946+24514+1049251844508
10.54M4.39 mi4680+4121730+216464+5042311515424
11.05M0.51 mi4607+731696+34459+538651376374
Finish(13.11 mi)2.06 mi4485+1221652+44448+1140521514414

Segment Performance Analysis

Start → 1.81M

0.0 - 1.8 mi

Top 79%
~flat
+4ft-3ft

Overall

5582

Females

2202

F25-29

579

1.81M→5.34M

1.8 - 5.3 mi

Top 70%
×4story building
+80ft-74ft

Overall

4998

Females

1896

F25-29

513

5.34M→6.15M

5.3 - 6.2 mi

Top 69%
×10story building
+126ft-4ft

Overall

4925

Females

1844

F25-29

509

6.15M→10.54M

6.2 - 10.5 mi

Top 60%
×21story building
+230ft-361ft

Overall

4231

Females

1515

F25-29

424

10.54M→11.05M

10.5 - 11.1 mi

Top 54%
×14story building
+172ft-0ft

Overall

3865

Females

1376

F25-29

375

11.05M→Finish

11.1 - 13.1 mi

Top 57%
×7story building
+97ft-114ft

Overall

4052

Females

1514

F25-29

414

Passing Analysis

Category:
▲Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 1.81M-#5582
1.81M → 5.34M
78526*+448
#5582 → #5134
5.34M → 6.15M
3981+42
#5134 → #5092
6.15M → 10.54M
30442*+412
#5092 → #4680
10.54M → 11.05M
2194+73
#4680 → #4607
11.05M → Finish
28150*+122
#4607 → #4485
TOTALS
1961293*+1097
#5582 → #4485

* Includes athletes who did not complete a segment (DNF/DNQ).

Passing Visualized

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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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