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SF MARATHON 1ST HALF 2025

Amy Amerlin

Bib: 427•F•Age: 4

Palo Alto, CA

0:00
0:00
/ mi
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Overall
#0 / 7100
Gender (Female)
#0 / 3107
F19 & Under
#0 / 80
Race Day Weather
56°/46°F
light rain

⏱️ Race Timeline

Start
0:00:00
Race begins
1.81M
23:27
Rank: #6900
Start → 1.81M
23:27 | 12:57/mi
5.34M
1:12:40
Rank: #6898 (+2)
1.81M → 5.34M
49:13 | 13:57/mi
6.15M
1:24:36
Rank: #6878 (+20)
5.34M → 6.15M
11:56 | 14:44/mi
10.54M
2:30:34
Rank: #6884 (-6)
6.15M → 10.54M
1:05:58 | 15:02/mi
11.05M
2:38:14
Rank: #6837 (+47)
10.54M → 11.05M
7:40 | 15:02/mi
Finish· 13.11 mi
3:09:30
Rank: #6815 (+22)
11.05M → Finish
31:16 | 15:11/mi

The Course

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Half Splits

1st Half· via 6.15MFaster
Distance6.15 mi
Time1:24:36
Pace13:45 /mi
2nd Half
Distance6.96 mi
Time1:44:54
Pace15:04 /mi
📊Positive Split: 24.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
1.81M
1.81 mi07:12:5923:2712:5723:27
12:57
-
5.34M
5.34 mi08:02:121:12:4013:3649:13
13:57
+1:00
6.15M
6.15 mi08:14:081:24:3613:4511:56
14:44
+0:47
10.54M
10.54 mi09:20:062:30:3414:171:05:58
15:02
+0:18
11.05M
11.05 mi09:27:462:38:1414:197:40
15:02
0:00
Finish
13.11 mi09:59:023:09:3014:2731:16
15:11
+0:09

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

12:57 /mi

Average Pace

14:27 /mi

Slowest Pace

15:11 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:12:40

38% of race

Time at Steady Pace

1:56:50

62% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 14:27 /mi

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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
1.81M
1.81 mi07:12:5923:2712:5723:27
12:57
#6900
5.34M
5.34 mi08:02:121:12:4013:3649:13
13:57
#6898
6.15M
6.15 mi08:14:081:24:3613:4511:56
14:44
#6878
10.54M
10.54 mi09:20:062:30:3414:171:05:58
15:02
#6884
11.05M
11.05 mi09:27:462:38:1414:197:40
15:02
#6837
Finish
13.11 mi09:59:023:09:3014:2731:16
15:11
#6815
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF19 & UnderSeg. OverallSeg. FemalesSeg. F19 & Under
1.81M1.81 mi1.81 mi69002987776900(Top 97%)2987(Top 96%)77(Top 96%)
5.34M5.34 mi3.53 mi6898+22982+5776903(Top 97%)2981(Top 96%)77(Top 96%)
6.15M6.15 mi0.81 mi6878+202973+9776761(Top 95%)2909(Top 94%)76(Top 95%)
10.54M10.54 mi4.39 mi6884-62981-8776856(Top 97%)2974(Top 96%)77(Top 96%)
11.05M11.05 mi0.51 mi6837+472950+3176+13934(Top 55%)1408(Top 45%)39(Top 49%)
Finish13.11 mi2.06 mi6815+222936+14766650(Top 94%)2890(Top 93%)73(Top 91%)

Segment Performance Analysis

Start → 1.81M

0.0 - 1.8 mi

Top 97%
~flat
+4ft-3ft

Overall

6900

Females

2987

F0-14

1

1.81M→5.34M

1.8 - 5.3 mi

Top 97%
×4stories
+80ft-74ft

Overall

6903

Females

2981

F0-14

1

5.34M→6.15M

5.3 - 6.2 mi

Top 95%
×10stories
+126ft-4ft

Overall

6761

Females

2909

F0-14

1

6.15M→10.54M

6.2 - 10.5 mi

Top 97%
×21stories
+230ft-361ft

Overall

6856

Females

2974

F0-14

1

10.54M→11.05M

10.5 - 11.1 mi

Top 55%
×14stories
+172ft-0ft

Overall

3934

Females

1408

F0-14

1

11.05M→Finish

11.1 - 13.1 mi

Top 94%
×7stories
+97ft-114ft

Overall

6650

Females

2890

F0-14

1

Passing Analysis

Category:
Athletes Passed
235*
Passed By
150
Net Change
+85
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 1.81M----#6900
1.81M → 5.34M72*70+2#6900#6898
5.34M → 6.15M3010+20#6898#6878
6.15M → 10.54M45*51-6#6878#6884
10.54M → 11.05M470+47#6884#6837
11.05M → Finish41*19+22#6837#6815
TOTALS235*150+85

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

📊

Passing Visuals

Category:
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🔥Passing Intensity

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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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