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SF MARATHON 1ST HALF 2025

Jinchi Wei

Bib: 18331•M•Age: 32

Ellicott City, MD

0:00
0:00
/ mi
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Overall
#0 / 7100
Gender (Male)
#0 / 3977
Division (M30-34)
#0 / 872
Race Day Weather
56°/46°F
light rain

⏱️ Race Timeline

Start
0:00:00
Race begins
1.81M
18:49
Rank: #4713
Start → 1.81M
18:49 | 10:24/mi
5.34M
56:32
Rank: #4560 (+153)
1.81M → 5.34M
37:43 | 10:41/mi
6.15M
1:05:26
Rank: #4492 (+68)
5.34M → 6.15M
8:54 | 11:00/mi
10.54M
1:53:16
Rank: #4261 (+231)
6.15M → 10.54M
47:50 | 10:54/mi
11.05M
2:01:10
Rank: #4254 (+7)
10.54M → 11.05M
7:54 | 15:29/mi
Finish· 13.11 mi
2:24:15
Rank: #4209 (+45)
11.05M → Finish
23:05 | 11:13/mi

The Course

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Half Splits

1st Half· via 6.15MFaster
Distance6.15 mi
Time1:05:26
Pace10:38 /mi
2nd Half
Distance6.96 mi
Time1:18:49
Pace11:20 /mi
📊Positive Split: 20.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
1.81M
1.81 mi06:54:2618:4910:2418:49
10:24
-
5.34M
5.34 mi07:32:0956:3210:3537:43
10:41
+0:17
6.15M
6.15 mi07:41:031:05:2610:388:54
11:00
+0:19
10.54M
10.54 mi08:28:531:53:1610:4547:50
10:54
-0:06
11.05M
11.05 mi08:36:472:01:1010:587:54
15:29
+4:35
Finish
13.11 mi08:59:522:24:1511:0023:05
11:13
-4:16

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

10:24 /mi

Average Pace

11:00 /mi

Slowest Pace

15:29 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:16:21

95% of race

Time at Slower Pace

7:54

5% of race

Average Pace: 11:00 /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 mi06:54:2618:4910:2418:49
10:24
#4713
5.34M
5.34 mi07:32:0956:3210:3537:43
10:41
#4560
6.15M
6.15 mi07:41:031:05:2610:388:54
11:00
#4492
10.54M
10.54 mi08:28:531:53:1610:4547:50
10:54
#4261
11.05M
11.05 mi08:36:472:01:1010:587:54
15:29
#4254
Finish
13.11 mi08:59:522:24:1511:0023:05
11:13
#4209
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM30-34Seg. OverallSeg. MalesSeg. M30-34
1.81M1.81 mi1.81 mi471329586414713(Top 66%)2958(Top 74%)641(Top 74%)
5.34M5.34 mi3.53 mi4560+1532888+70625+164573(Top 64%)2901(Top 73%)631(Top 72%)
6.15M6.15 mi0.81 mi4492+682854+34617+84117(Top 58%)2665(Top 67%)580(Top 67%)
10.54M10.54 mi4.39 mi4261+2312736+118590+274128(Top 58%)2661(Top 67%)583(Top 67%)
11.05M11.05 mi0.51 mi4254+72729+7597-74274(Top 60%)2691(Top 68%)598(Top 69%)
Finish13.11 mi2.06 mi4209+452676+53588+94091(Top 58%)2543(Top 64%)554(Top 64%)

Segment Performance Analysis

Start → 1.81M

0.0 - 1.8 mi

Top 66%
~flat
+4ft-3ft

Overall

4713

Males

2958

M30-34

641

1.81M→5.34M

1.8 - 5.3 mi

Top 64%
×4stories
+80ft-74ft

Overall

4573

Males

2901

M30-34

631

5.34M→6.15M

5.3 - 6.2 mi

Top 58%
×10stories
+126ft-4ft

Overall

4117

Males

2665

M30-34

580

6.15M→10.54M

6.2 - 10.5 mi

Top 58%
×21stories
+230ft-361ft

Overall

4128

Males

2661

M30-34

583

10.54M→11.05M

10.5 - 11.1 mi

Top 60%
×14stories
+172ft-0ft

Overall

4274

Males

2691

M30-34

598

11.05M→Finish

11.1 - 13.1 mi

Top 58%
×7stories
+97ft-114ft

Overall

4091

Males

2543

M30-34

554

Passing Analysis

Category:
Athletes Passed
939*
Passed By
435
Net Change
+504
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 1.81M----#4713
1.81M → 5.34M342*189+153#4713#4560
5.34M → 6.15M10739+68#4560#4492
6.15M → 10.54M325*94+231#4492#4261
10.54M → 11.05M6154+7#4261#4254
11.05M → Finish104*59+45#4254#4209
TOTALS939*435+504

* 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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The San Francisco Marathon

The San Francisco Marathon

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