San Francisco Marathon logo
SF MARATHON 2023

Justin Kyle Chang

Bib: 3990•M•Age: 22

American Canyon, CA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 4888
Top 6%
Gender (Male)
#0 / 3570
Top 8%
M20-29
#0 / 457
Top 12%
Race Day Weather
69°/59°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
2.2 Miles
15:47
Rank: #819
Start → 2.2 Miles
15:47 | 7:10/mi
5.7 Miles
46:59
Rank: #947 (-128)
2.2 Miles → 5.7 Miles
31:12 | 8:55/mi
6.43 Miles
55:03
Rank: #868 (+79)
5.7 Miles → 6.43 Miles
8:04 | 11:03/mi
10.92 Miles
1:29:34
Rank: #779 (+89)
6.43 Miles → 10.92 Miles
34:31 | 7:41/mi
Garmin Hill Challenge· 11.42 mi
1:34:29
Rank: #769 (+10)
10.92 Miles → Garmin Hill Challenge
4:55 | 9:50/mi
14.95 Miles
1:58:46
Rank: #615 (+154)
Garmin Hill Challenge → 14.95 Miles
24:17 | 6:53/mi
18 Miles
2:22:13
Rank: #441 (+174)
14.95 Miles → 18 Miles
23:27 | 7:41/mi
24 Miles
3:05:39
Rank: #311 (+130)
18 Miles → 24 Miles
43:26 | 7:14/mi
Finish· 26.22 mi
3:22:40
Rank: #292 (+19)
24 Miles → Finish
17:01 | 7:40/mi

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
2.2 Miles
2.20 mi05:39:0515:477:1015:47
7:10
-
5.7 Miles
5.70 mi06:10:1746:598:1531:12
8:55
+1:45
6.43 Miles
6.43 mi06:18:2155:038:348:04
11:03
+2:08
10.92 Miles
10.92 mi06:52:521:29:348:1234:31
7:41
-3:22
Garmin Hill Challenge
11.42 mi06:57:471:34:298:164:55
9:50
+2:09
14.95 Miles
14.95 mi07:22:041:58:467:5724:17
6:53
-2:57
18 Miles
18.00 mi07:45:312:22:137:5423:27
7:41
+0:48
24 Miles
24.00 mi08:28:573:05:397:4443:26
7:14
-0:27
Finish
26.22 mi08:45:583:22:407:4417:01
7:40
+0:26

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

6:53 /mi

Average Pace

7:44 /mi

Slowest Pace

11:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

24:17

12% of race

Time at Steady Pace

2:14:12

66% of race

Time at Slower Pace

44:11

22% of race

Average Pace: 7:44 /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...
0mi6.6mi13.1mi19.7mi26.2mi
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
2.2 Miles
2.20 mi05:39:0515:477:1015:47
7:10
#819
5.7 Miles
5.70 mi06:10:1746:598:1531:12
8:55
#947
6.43 Miles
6.43 mi06:18:2155:038:348:04
11:03
#868
10.92 Miles
10.92 mi06:52:521:29:348:1234:31
7:41
#779
Garmin Hill Challenge
11.42 mi06:57:471:34:298:164:55
9:50
#769
14.95 Miles
14.95 mi07:22:041:58:467:5724:17
6:53
#615
18 Miles
18.00 mi07:45:312:22:137:5423:27
7:41
#441
24 Miles
24.00 mi08:28:573:05:397:4443:26
7:14
#311
Finish
26.22 mi08:45:583:22:407:4417:01
7:40
#292
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM20-29Seg. OverallSeg. MalesSeg. M20-29
2.2 Miles2.20 mi2.20 mi819741113819(Top 17%)741(Top 21%)113(Top 25%)
5.7 Miles5.70 mi3.50 mi947-128853-112135-221048(Top 21%)940(Top 26%)143(Top 31%)
6.43 Miles6.43 mi0.73 mi868+79785+68127+8600(Top 12%)542(Top 15%)102(Top 22%)
10.92 Miles10.92 mi4.49 mi779+89709+76117+10637(Top 13%)585(Top 16%)104(Top 23%)
Garmin Hill Challenge11.42 mi0.50 mi769+10702+7118-1643(Top 13%)603(Top 17%)126(Top 28%)
14.95 Miles14.95 mi3.53 mi615+154566+136106+12311(Top 6%)294(Top 8%)54(Top 12%)
18 Miles18.00 mi3.05 mi441+174409+15776+3092(Top 2%)86(Top 2%)21(Top 5%)
24 Miles24.00 mi6.00 mi311+130292+11753+23129(Top 3%)119(Top 3%)28(Top 6%)
Finish26.22 mi2.22 mi292+19275+1754-1298(Top 6%)274(Top 8%)49(Top 11%)

Segment Performance Analysis

Start → 2.2 Miles

0.0 - 2.2 mi

Top 17%
×1human
+8ft-12ft

Overall

819

Males

741

M20-24

114

2.2 Miles→5.7 Miles

2.2 - 5.7 mi

Top 21%
×6stories
+92ft-87ft

Overall

1048

Males

940

M20-24

144

5.7 Miles→6.43 Miles

5.7 - 6.4 mi

Top 12%
×11stories
+137ft-3ft

Overall

600

Males

542

M20-24

103

6.43 Miles→10.92 Miles

6.4 - 10.9 mi

Top 13%
×21stories
+225ft-318ft

Overall

637

Males

585

M20-24

105

10.92 Miles→Garmin Hill Challenge

10.9 - 11.4 mi

Top 13%
×11stories
+134ft-123ft

Overall

643

Males

603

M20-24

127

Garmin Hill Challenge→14.95 Miles

11.4 - 14.9 mi

Top 6%
×16stories
+234ft-225ft

Overall

311

Males

294

M20-24

55

14.95 Miles→18 Miles

14.9 - 18.0 mi

Top 2%
×12stories
+165ft-60ft

Overall

92

Males

86

M20-24

22

18 Miles→24 Miles

18.0 - 24.0 mi

Top 3%
×21stories
+142ft-377ft

Overall

129

Males

119

M20-24

28

24 Miles→Finish

24.0 - 26.2 mi

Top 6%
~flat
+2ft-2ft

Overall

298

Males

274

M20-24

49

Passing Analysis

Category:
Athletes Passed
711*
Passed By
184
Net Change
+527
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2.2 Miles----#819
2.2 Miles → 5.7 Miles33161-128#819#947
5.7 Miles → 6.43 Miles823+79#947#868
6.43 Miles → 10.92 Miles98*9+89#868#779
10.92 Miles → Garmin Hill Challenge155+10#779#769
Garmin Hill Challenge → 14.95 Miles1540+154#769#615
14.95 Miles → 18 Miles174*0+174#615#441
18 Miles → 24 Miles130*0+130#441#311
24 Miles → Finish256+19#311#292
TOTALS711*184+527

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

📊

Passing Visuals

Category:

📈Position Graph

Loading...

🎨Heatmap Timeline

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

Public Race Data

The San Francisco Marathon

The San Francisco Marathon

Race Place Events

Race Place Events