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SF MARATHON 1ST HALF 2025

Natalie Leung

San Francisco, CA

Bib: 15597 F 23

0:00
0:00
/ mi
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Overall
#0 / 7100
Gender (Female)
#0 / 3107
Top 43%
F20-29
#0 / 410
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
10:34/mi
19:07
→ flat
5.34M
10:38/mi
56:39
↑ 80↓ 74
6.15M
10:47/mi
1:05:23
↑ 126
10.54M
10:36/mi
1:51:55
↑ 230↓ 361
11.05M
15:45/mi
1:59:57
↑ 172
Finish· 13.11 mi
10:15/mi
2:21:03
↑ 97↓ 114
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6.15M
1:05:2310:38 /mi⚡ faster
2nd Half
1:15:4010:52 /mi+15.7%
Positive split — 15.7% 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
19:0710:341.81 mi19:07
10:34
-
5.34M
56:3910:373.53 mi37:32
10:38
+0:04
6.15M
1:05:2310:380.81 mi8:44
10:47
+0:09
10.54M
1:51:5510:374.39 mi46:32
10:36
-0:11
11.05M
1:59:5710:510.51 mi8:02
15:45
+5:09
Finish(13.11 mi)
2:21:0310:462.06 mi21:06
10:15
-5:30
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

10:15 /mi

Average Pace

10:46 /mi

Slowest Pace

15:45 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:13:01

94% of race

Time at Slower Pace

8:02

6% of race

Average Pace: 10:46 /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. DistOverallFemalesF20-29Seg. OverallSeg. FemalesSeg. F20-29
1.81M1.81 mi5000189629050001896290
5.34M3.53 mi4606+3941686+210261+2944851611257
6.15M0.81 mi4471+1351615+71258+338201305224
10.54M4.39 mi4062+4091415+200224+3437301274203
11.05M0.51 mi4095-331432-17227-344081649261
Finish(13.11 mi)2.06 mi3861+2341336+96217+102776902161

Segment Performance Analysis

Start → 1.81M

0.0 - 1.8 mi

Top 70%
~flat
+4ft-3ft

Overall

5000

Females

1896

F20-24

291

1.81M→5.34M

1.8 - 5.3 mi

Top 63%
×4story building
+80ft-74ft

Overall

4485

Females

1611

F20-24

258

5.34M→6.15M

5.3 - 6.2 mi

Top 54%
×10story building
+126ft-4ft

Overall

3820

Females

1305

F20-24

225

6.15M→10.54M

6.2 - 10.5 mi

Top 53%
×21story building
+230ft-361ft

Overall

3730

Females

1274

F20-24

204

10.54M→11.05M

10.5 - 11.1 mi

Top 62%
×14story building
+172ft-0ft

Overall

4408

Females

1649

F20-24

262

11.05M→Finish

11.1 - 13.1 mi

Top 39%
×7story building
+97ft-114ft

Overall

2776

Females

902

F20-24

161

Passing Analysis

Category:
▲Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 1.81M-#5000
1.81M → 5.34M
109503*+394
#5000 → #4606
5.34M → 6.15M
16151+135
#4606 → #4471
6.15M → 10.54M
44453*+409
#4471 → #4062
10.54M → 11.05M
6431-33
#4062 → #4095
11.05M → Finish
9243*+234
#4095 → #3861
TOTALS
2421381*+1139
#5000 → #3861

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

Passing Visualized

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

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