Chun-Ju Chang

Bib: 14768MAge: 35

San Francisco, CA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 4103
Top 15%
Gender (Male)
#0 / 2158
Top 22%
Division (M35-39)
#0 / 298
Top 22%
Race Day Weather
54°/44°F
overcast clouds

⏱️ Race Timeline

Course Elevation
10277 ft
×22story building
774 ft climb · 557 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2.2M
7:23/mi
16:14
→ flat
5.7M
9:24/mi
49:09
100780.1%
6.43M
12:28/mi
58:15
1473.8%
8.3M
6:55/mi
1:11:10
88530.3%
11.45M
8:48/mi
1:38:53
2933310.2%
FINISH· 13.11 mi
8:24/mi
1:52:49
61910.3%

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.

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2.2M
2.20 mi06:54:0216:147:2316:14
7:23
-
5.7M
5.70 mi07:26:5749:098:3732:55
9:24
+2:01
6.43M
6.43 mi07:36:0358:159:049:06
12:28
+3:04
8.3M
8.30 mi07:48:581:11:108:3412:55
6:55
-5:33
11.45M
11.45 mi08:16:411:38:538:3827:43
8:48
+1:53
FINISH
13.11 mi08:30:371:52:498:3613:56
8:24
-0:24

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

6:55 /mi

Average Pace

8:36 /mi

Slowest Pace

12:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

29:09

26% of race

Time at Steady Pace

1:14:34

66% of race

Time at Slower Pace

9:06

8% of race

Average Pace: 8:36 /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
2.2M
2.20 mi06:54:0216:147:2316:14
7:23
#685
5.7M
5.70 mi07:26:5749:098:3732:55
9:24
#872
6.43M
6.43 mi07:36:0358:159:049:06
12:28
#878
8.3M
8.30 mi07:48:581:11:108:3412:55
6:55
#805
11.45M
11.45 mi08:16:411:38:538:3827:43
8:48
#704
FINISH
13.11 mi08:30:371:52:498:3613:56
8:24
#616
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM35-39Seg. OverallSeg. MalesSeg. M35-39
2.2M2.20 mi2.20 mi68552967685(Top 17%)529(Top 25%)67(Top 22%)
5.7M5.70 mi3.50 mi872-187655-12683-16983(Top 24%)715(Top 33%)97(Top 33%)
6.43M6.43 mi0.73 mi878-6666-1188-5935(Top 23%)700(Top 32%)90(Top 30%)
8.3M8.30 mi1.87 mi805+73617+4980+8605(Top 15%)481(Top 22%)66(Top 22%)
11.45M11.45 mi3.15 mi704+101550+6772+8560(Top 14%)438(Top 20%)63(Top 21%)
FINISH13.11 mi1.66 mi616+88485+6567+5288(Top 7%)236(Top 11%)33(Top 11%)

Segment Performance Analysis

Start → 2.2M

0.0 - 2.2 mi

Top 17%
~flat
+6ft-3ft

Overall

685

Males

529

M35-39

67

2.2M→5.7M

2.2 - 5.7 mi

Top 24%
×5story building
+100ft-78ft

Overall

983

Males

715

M35-39

98

5.7M→6.43M

5.7 - 6.4 mi

Top 23%
×12story building
+147ft-0ft

Overall

935

Males

700

M35-39

91

6.43M→8.3M

6.4 - 8.3 mi

Top 15%
×4story building
+88ft-53ft

Overall

605

Males

481

M35-39

66

8.3M→11.45M

8.3 - 11.4 mi

Top 14%
×20story building
+293ft-331ft

Overall

560

Males

438

M35-39

63

11.45M→FINISH

11.4 - 13.1 mi

Top 7%
×7story building
+61ft-91ft

Overall

288

Males

236

M35-39

33

Passing Analysis

Category:
Athletes Passed
313*
Passed By
244
Net Change
+69
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2.2M----#685
2.2M5.7M24211-187#685#872
5.7M6.43M2026-6#872#878
6.43M8.3M763+73#878#805
8.3M11.45M105*4+101#805#704
11.45MFINISH88*0+88#704#616
TOTALS313*244+69

* 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
Share Feedback

Official Timing Data

The San Francisco Marathon

The San Francisco Marathon