San Francisco Marathon logo
SF MARATHON 1ST HALF 2023

James Chhen

Bib: 14903•M•Age: 24

San Francisco, CA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 6072
Gender (Male)
#0 / 3331
M20-29
#0 / 333
Race Day Weather
60°/50°F
overcast clouds

⏱️ Race Timeline

Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
1.40M
9:38/mi
13:29
→ flat
2.13M
21:36/mi
29:15
→ flat
6.43M
14:06/mi
1:29:53
↑ 274↓ 780.9%
6.62M
-51:-50/mi
1:20:13
↑ 161.6%
10.65M
13:00/mi
2:12:36
↑ 153↓ 3611.0%
Finish· 13.11 mi
12:51/mi
2:44:12
↑ 244↓ 1141.0%

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via 6.62MFaster
Distance6.62 mi
Time1:20:13
Pace12:07 /mi
2nd Half
Distance6.49 mi
Time1:23:59
Pace12:57 /mi
📊Positive Split: 4.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
1.40M
1.40 mi07:10:4513:299:3813:29
9:38
-
2.13M
2.13 mi07:26:3129:1513:4415:46
21:36
+11:58
6.43M
6.43 mi08:27:091:29:5313:591:00:38
14:06
-7:30
6.62M
6.62 mi08:17:291:20:1312:07
-51:-50
-65:56
10.65M
10.65 mi09:09:522:12:3612:2752:23
13:00
+64:50
Finish
13.11 mi09:41:282:44:1212:3231:36
12:51
-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

-52:-50 /mi

Average Pace

12:32 /mi

Slowest Pace

21:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:44:12

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 12:31 /mi

Loading chart...
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
1.40M
1.40 mi07:10:4513:299:3813:29
9:38
#3479
2.13M
2.13 mi07:26:3129:1513:4415:46
21:36
#4155
6.43M
6.43 mi08:27:091:29:5313:591:00:38
14:06
#4729
6.62M
6.62 mi08:17:291:20:1312:07
-51:-50
#4500
10.65M
10.65 mi09:09:522:12:3612:2752:23
13:00
#4989
Finish
13.11 mi09:41:282:44:1212:3231:36
12:51
#5063
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM20-29Seg. OverallSeg. MalesSeg. M20-29
1.40M1.40 mi1.40 mi347921902613479(Top 57%)2190(Top 66%)261(Top 78%)
2.13M2.13 mi0.73 mi4155-6762539-349288-274818(Top 79%)2826(Top 85%)304(Top 91%)
6.43M6.43 mi4.30 mi4729-5742813-274304-164967(Top 82%)2901(Top 87%)309(Top 93%)
6.62M6.62 mi0.19 mi4500+2292709+104298+6---
10.65M10.65 mi4.03 mi4989-4892911-202304-65480(Top 90%)3082(Top 93%)313(Top 94%)
Finish13.11 mi2.46 mi5063-742928-17303+15349(Top 88%)3022(Top 91%)303(Top 91%)

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 57%
~flat
+3ft-2ft

Overall

3479

Males

2190

M20-24

261

1.40M→2.13M

1.4 - 2.1 mi

Top 79%
~flat
+3ft-1ft

Overall

4818

Males

2826

M20-24

304

2.13M→6.43M

2.1 - 6.4 mi

Top 82%
×17story building
+274ft-78ft

Overall

4967

Males

2901

M20-24

309

6.43M→6.62M

6.4 - 6.6 mi

×1story
+16ft-0ft

Overall

-

Males

-

M20-24

-

6.62M→10.65M

6.6 - 10.7 mi

Top 90%
×21story building
+153ft-361ft

Overall

5480

Males

3082

M20-24

313

10.65M→Finish

10.7 - 13.1 mi

Top 88%
×17story building
+244ft-114ft

Overall

5349

Males

3022

M20-24

303

Passing Analysis

Category:
Athletes Passed
403*
Passed By
1987
Net Change
-1584
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 1.40M----#3479
1.40M → 2.13M24700-676#3479#4155
2.13M → 6.43M103*677-574#4155#4729
6.43M → 6.62M2301+229#4729#4500
6.62M → 10.65M16*505-489#4500#4989
10.65M → Finish30*104-74#4989#5063
TOTALS403*1987-1584

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

📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

The San Francisco Marathon

The San Francisco Marathon

Race Place Events

Race Place Events