All Results|Race Analytics|Course|Contact
SF MARATHON 2023

Justin Chung

Bib: 2191•M•Age: 30

Hacienda Heights, CA

San Francisco Marathon logo
0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 4888
Gender (Male)
#0 / 3570
Division (M30-34)
#0 / 692
Race Day Weather
69°/59°F
broken clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
2.2 Miles
16:49
Rank: #1453
Start → 2.2 Miles
16:49 | 7:39/mi
5.7 Miles
51:51
Rank: #2043 (-590)
2.2 Miles → 5.7 Miles
35:02 | 10:01/mi
6.43 Miles
1:02:28
Rank: #2240 (-197)
5.7 Miles → 6.43 Miles
10:37 | 14:32/mi
10.92 Miles
1:47:59
Rank: #2740 (-500)
6.43 Miles → 10.92 Miles
45:31 | 10:08/mi
Garmin Hill Challenge· 11.42 mi
1:55:23
Rank: #2822 (-82)
10.92 Miles → Garmin Hill Challenge
7:24 | 14:48/mi
14.95 Miles
2:31:42
Rank: #3084 (-262)
Garmin Hill Challenge → 14.95 Miles
36:19 | 10:17/mi
18 Miles
3:17:34
Rank: #3461 (-377)
14.95 Miles → 18 Miles
45:52 | 15:02/mi
24 Miles
4:48:06
Rank: #3964 (-503)
18 Miles → 24 Miles
1:30:32 | 15:05/mi
Finish· 26.22 mi
5:24:48
Rank: #4118 (-154)
24 Miles → Finish
36:42 | 16:32/mi
Is this your race?

Claim it — get your free Race Performance Report

An AI deep-dive into your pacing, rankings, and passing — built from your real splits and emailed to you, free.

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2.2 Miles
2.20 mi05:39:0516:497:3916:49
7:39
-
5.7 Miles
5.70 mi06:14:0751:519:0635:02
10:01
+2:22
6.43 Miles
6.43 mi06:24:441:02:289:4310:37
14:32
+4:31
10.92 Miles
10.92 mi07:10:151:47:599:5345:31
10:08
-4:24
Garmin Hill Challenge
11.42 mi07:17:391:55:2310:067:24
14:48
+4:40
14.95 Miles
14.95 mi07:53:582:31:4210:0936:19
10:17
-4:31
18 Miles
18.00 mi08:39:503:17:3410:5945:52
15:02
+4:45
24 Miles
24.00 mi10:10:224:48:0612:001:30:32
15:05
+0:03
Finish
26.22 mi10:47:045:24:4812:2436:42
16:32
+1:27

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

7:39 /mi

Average Pace

12:24 /mi

Slowest Pace

16:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:13:41

41% of race

Time at Steady Pace

2:34:25

48% of race

Time at Slower Pace

36:42

11% of race

Average Pace: 12:23 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
2.2 Miles
2.20 mi05:39:0516:497:3916:49
7:39
#1453
5.7 Miles
5.70 mi06:14:0751:519:0635:02
10:01
#2043
6.43 Miles
6.43 mi06:24:441:02:289:4310:37
14:32
#2240
10.92 Miles
10.92 mi07:10:151:47:599:5345:31
10:08
#2740
Garmin Hill Challenge
11.42 mi07:17:391:55:2310:067:24
14:48
#2822
14.95 Miles
14.95 mi07:53:582:31:4210:0936:19
10:17
#3084
18 Miles
18.00 mi08:39:503:17:3410:5945:52
15:02
#3461
24 Miles
24.00 mi10:10:224:48:0612:001:30:32
15:05
#3964
Finish
26.22 mi10:47:045:24:4812:2436:42
16:32
#4118
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM30-34Seg. OverallSeg. MalesSeg. M30-34
2.2 Miles2.20 mi2.20 mi145312542441453(Top 30%)1254(Top 35%)244(Top 35%)
5.7 Miles5.70 mi3.50 mi2043-5901719-465328-842292(Top 47%)1908(Top 53%)363(Top 52%)
6.43 Miles6.43 mi0.73 mi2240-1971869-150354-263368(Top 69%)2655(Top 74%)509(Top 74%)
10.92 Miles10.92 mi4.49 mi2740-5002219-350425-713391(Top 69%)2662(Top 75%)514(Top 74%)
Garmin Hill Challenge11.42 mi0.50 mi2822-822283-64438-133732(Top 76%)2887(Top 81%)566(Top 82%)
14.95 Miles14.95 mi3.53 mi3084-2622469-186474-363786(Top 77%)2900(Top 81%)557(Top 80%)
18 Miles18.00 mi3.05 mi3461-3772692-223522-484356(Top 89%)3239(Top 91%)627(Top 91%)
24 Miles24.00 mi6.00 mi3964-5032988-296577-554592(Top 94%)3368(Top 94%)650(Top 94%)
Finish26.22 mi2.22 mi4118-1543088-100595-184732(Top 97%)3470(Top 97%)677(Top 98%)

Segment Performance Analysis

Start → 2.2 Miles

0.0 - 2.2 mi

Top 30%
×1human
+8ft-12ft

Overall

1453

Males

1254

M30-34

246

2.2 Miles→5.7 Miles

2.2 - 5.7 mi

Top 47%
×6stories
+92ft-87ft

Overall

2292

Males

1908

M30-34

368

5.7 Miles→6.43 Miles

5.7 - 6.4 mi

Top 69%
×11stories
+137ft-3ft

Overall

3368

Males

2655

M30-34

515

6.43 Miles→10.92 Miles

6.4 - 10.9 mi

Top 69%
×21stories
+225ft-318ft

Overall

3391

Males

2662

M30-34

522

10.92 Miles→Garmin Hill Challenge

10.9 - 11.4 mi

Top 76%
×11stories
+134ft-123ft

Overall

3732

Males

2887

M30-34

574

Garmin Hill Challenge→14.95 Miles

11.4 - 14.9 mi

Top 77%
×16stories
+234ft-225ft

Overall

3786

Males

2900

M30-34

566

14.95 Miles→18 Miles

14.9 - 18.0 mi

Top 89%
×12stories
+165ft-60ft

Overall

4356

Males

3239

M30-34

632

18 Miles→24 Miles

18.0 - 24.0 mi

Top 94%
×21stories
+142ft-377ft

Overall

4592

Males

3368

M30-34

651

24 Miles→Finish

24.0 - 26.2 mi

Top 97%
~flat
+2ft-2ft

Overall

4732

Males

3470

M30-34

677

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
67*
Passed By
2732
Net Change
-2665
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2.2 Miles----#1453
2.2 Miles → 5.7 Miles10*600-590#1453#2043
5.7 Miles → 6.43 Miles2199-197#2043#2240
6.43 Miles → 10.92 Miles12*512-500#2240#2740
10.92 Miles → Garmin Hill Challenge587-82#2740#2822
Garmin Hill Challenge → 14.95 Miles7269-262#2822#3084
14.95 Miles → 18 Miles10*387-377#3084#3461
18 Miles → 24 Miles17*520-503#3461#3964
24 Miles → Finish4*158-154#3964#4118
TOTALS67*2732-2665

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

📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

Loading...

🎨Heatmap Timeline

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Qualifying & Age Grade

See how your performance stacks up against qualifying standards

Activity Data

Upload your GPX file to see detailed activity metrics

Upload your GPX file

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

.gpx files up to 10MB

Export & Support

Download your data, get help, and share your feedback

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