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SF MARATHON 1ST HALF 2025

Kenneth Chen

new york, NY

Bib: 14327 M 33

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

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
10 ft elev
1.81M
9:15/mi
16:44
→ flat
12 ft elev
5.34M
9:40/mi
50:51
↑ 80↓ 74
19 ft elev
6.15M
12:01/mi
1:00:35
↑ 1262.8%
149 ft elev
10.54M
11:04/mi
1:49:08
↑ 230↓ 3610.6%
20 ft elev
11.05M
17:15/mi
1:57:56
↑ 1726.4%
213 ft elev
Finish· 13.11 mi
12:06/mi
2:22:51
↑ 97↓ 1140.2%
205 ft elev
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6.15M
1:00:359:51 /mi⚡ faster
2nd Half
1:22:1611:49 /mi+35.8%
Positive split — 35.8% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
1.81M
1.81 mi06:52:2016:449:1516:44
9:15
-
5.34M
5.34 mi07:26:2750:519:3134:07
9:40
+0:25
6.15M
6.15 mi07:36:111:00:359:519:44
12:01
+2:21
10.54M
10.54 mi08:24:441:49:0810:2148:33
11:04
-0:57
11.05M
11.05 mi08:33:321:57:5610:408:48
17:15
+6:11
Finish
13.11 mi08:58:272:22:5110:5424:55
12:06
-5:09

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

9:15 /mi

Average Pace

10:54 /mi

Slowest Pace

17:15 /mi

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Fastest
Middle
Slowest
Average

Segments

Segment Time Comparison

Time at Faster Pace

50:51

36% of race

Time at Steady Pace

1:23:12

58% of race

Time at Slower Pace

8:48

6% of race

Average Pace: 10:54 /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.

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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 mi06:52:2016:449:1516:44
9:15
#2380
5.34M
5.34 mi07:26:2750:519:3134:07
9:40
#2722
6.15M
6.15 mi07:36:111:00:359:519:44
12:01
#3136
10.54M
10.54 mi08:24:441:49:0810:2148:33
11:04
#3668
11.05M
11.05 mi08:33:321:57:5610:408:48
17:15
#3822
Finish
13.11 mi08:58:272:22:5110:5424:55
12:06
#4052
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM30-34Seg. OverallSeg. MalesSeg. M30-34
1.81M1.81 mi1.81 mi2380172937123801729371
5.34M5.34 mi3.53 mi2722-3421914-185410-3929052021441
6.15M6.15 mi0.81 mi3136-4142150-236459-4952423205709
10.54M10.54 mi4.39 mi3668-5322424-274525-6643292756606
11.05M11.05 mi0.51 mi3822-1542507-83540-1553333191702
Finish13.11 mi2.06 mi4052-2302607-100567-2750562996654

Segment Performance Analysis

Start → 1.81M

0.0 - 1.8 mi

Top 34%
~flat
+4ft-3ft

Overall

2380

Males

1729

M30-34

371

1.81M→5.34M

1.8 - 5.3 mi

Top 41%
×4story building
+80ft-74ft

Overall

2905

Males

2021

M30-34

441

5.34M→6.15M

5.3 - 6.2 mi

Top 74%
×10story building
+126ft-4ft

Overall

5242

Males

3205

M30-34

709

6.15M→10.54M

6.2 - 10.5 mi

Top 61%
×21story building
+230ft-361ft

Overall

4329

Males

2756

M30-34

606

10.54M→11.05M

10.5 - 11.1 mi

Top 75%
×14story building
+172ft-0ft

Overall

5333

Males

3191

M30-34

702

11.05M→Finish

11.1 - 13.1 mi

Top 71%
×7story building
+97ft-114ft

Overall

5056

Males

2996

M30-34

654

Passing Analysis

Category:
Athletes Passed
173*
Passed By
1845
Net Change
-1672
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 1.81M----#2380
1.81M → 5.34M96*438-342#2380#2722
5.34M → 6.15M1415-414#2722#3136
6.15M → 10.54M43*575-532#3136#3668
10.54M → 11.05M8162-154#3668#3822
11.05M → Finish25*255-230#3822#4052
TOTALS173*1845-1672

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

Passing Charts

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