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

Kevin Chow

Bib: 623•M•Age: 47

San Mateo, CA

Masters
San Francisco Marathon logo
0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 4888
Top 36%
Gender (Male)
#0 / 3570
Top 41%
Masters (Masters Men)
#0 / 1128
Top 34%
Division (M45-49)
#0 / 279
Top 39%
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
15:27
Rank: #662
Start → 2.2 Miles
15:27 | 7:01/mi
5.7 Miles
44:57
Rank: #614 (+48)
2.2 Miles → 5.7 Miles
29:30 | 8:26/mi
6.43 Miles
53:06
Rank: #615 (-1)
5.7 Miles → 6.43 Miles
8:09 | 11:10/mi
10.92 Miles
1:27:29
Rank: #600 (+15)
6.43 Miles → 10.92 Miles
34:23 | 7:39/mi
Garmin Hill Challenge· 11.42 mi
1:32:37
Rank: #603 (-3)
10.92 Miles → Garmin Hill Challenge
5:08 | 10:16/mi
14.95 Miles
1:59:10
Rank: #640 (-37)
Garmin Hill Challenge → 14.95 Miles
26:33 | 7:31/mi
18 Miles
2:30:22
Rank: #820 (-180)
14.95 Miles → 18 Miles
31:12 | 10:14/mi
24 Miles
3:41:11
Rank: #1526 (-706)
18 Miles → 24 Miles
1:10:49 | 11:48/mi
Finish· 26.22 mi
4:09:16
Rank: #1757 (-231)
24 Miles → Finish
28:05 | 12:39/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 mi05:32:1115:277:0115:27
7:01
-
5.7 Miles
5.70 mi06:01:4144:577:5329:30
8:26
+1:25
6.43 Miles
6.43 mi06:09:5053:068:158:09
11:10
+2:44
10.92 Miles
10.92 mi06:44:131:27:298:0134:23
7:39
-3:31
Garmin Hill Challenge
11.42 mi06:49:211:32:378:075:08
10:16
+2:37
14.95 Miles
14.95 mi07:15:541:59:107:5826:33
7:31
-2:45
18 Miles
18.00 mi07:47:062:30:228:2131:12
10:14
+2:43
24 Miles
24.00 mi08:57:553:41:119:131:10:49
11:48
+1:34
Finish
26.22 mi09:26:004:09:169:3128:05
12:39
+0:51

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

7:01 /mi

Average Pace

9:31 /mi

Slowest Pace

12:39 /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

1:45:53

42% of race

Time at Steady Pace

44:29

18% of race

Time at Slower Pace

1:38:54

40% of race

Average Pace: 9:30 /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 mi05:32:1115:277:0115:27
7:01
#662
5.7 Miles
5.70 mi06:01:4144:577:5329:30
8:26
#614
6.43 Miles
6.43 mi06:09:5053:068:158:09
11:10
#615
10.92 Miles
10.92 mi06:44:131:27:298:0134:23
7:39
#600
Garmin Hill Challenge
11.42 mi06:49:211:32:378:075:08
10:16
#603
14.95 Miles
14.95 mi07:15:541:59:107:5826:33
7:31
#640
18 Miles
18.00 mi07:47:062:30:228:2131:12
10:14
#820
24 Miles
24.00 mi08:57:553:41:119:131:10:49
11:48
#1526
Finish
26.22 mi09:26:004:09:169:3128:05
12:39
#1757
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
2.2 Miles2.20 mi2.20 mi66260345662(Top 14%)603(Top 17%)45(Top 16%)
5.7 Miles5.70 mi3.50 mi614+48563+4038+7598(Top 12%)551(Top 15%)36(Top 13%)
6.43 Miles6.43 mi0.73 mi615-1565-235+3679(Top 14%)612(Top 17%)37(Top 13%)
10.92 Miles10.92 mi4.49 mi600+15553+1237-2612(Top 13%)562(Top 16%)35(Top 13%)
Garmin Hill Challenge11.42 mi0.50 mi603-3557-436+1981(Top 20%)889(Top 25%)45(Top 16%)
14.95 Miles14.95 mi3.53 mi640-37586-2935+1829(Top 17%)752(Top 21%)47(Top 17%)
18 Miles18.00 mi3.05 mi820-180747-16150-151593(Top 33%)1360(Top 38%)87(Top 31%)
24 Miles24.00 mi6.00 mi1526-7061299-55290-403169(Top 65%)2399(Top 67%)189(Top 68%)
Finish26.22 mi2.22 mi1757-2311466-167110-203739(Top 76%)2762(Top 77%)221(Top 79%)

Segment Performance Analysis

Start → 2.2 Miles

0.0 - 2.2 mi

Top 14%
×1human
+8ft-12ft

Overall

662

Males

603

M45-49

45

2.2 Miles→5.7 Miles

2.2 - 5.7 mi

Top 12%
×6stories
+92ft-87ft

Overall

598

Males

551

M45-49

36

5.7 Miles→6.43 Miles

5.7 - 6.4 mi

Top 14%
×11stories
+137ft-3ft

Overall

679

Males

612

M45-49

37

6.43 Miles→10.92 Miles

6.4 - 10.9 mi

Top 13%
×21stories
+225ft-318ft

Overall

612

Males

562

M45-49

35

10.92 Miles→Garmin Hill Challenge

10.9 - 11.4 mi

Top 20%
×11stories
+134ft-123ft

Overall

981

Males

889

M45-49

45

Garmin Hill Challenge→14.95 Miles

11.4 - 14.9 mi

Top 17%
×16stories
+234ft-225ft

Overall

829

Males

752

M45-49

47

14.95 Miles→18 Miles

14.9 - 18.0 mi

Top 33%
×12stories
+165ft-60ft

Overall

1593

Males

1360

M45-49

87

18 Miles→24 Miles

18.0 - 24.0 mi

Top 65%
×21stories
+142ft-377ft

Overall

3169

Males

2399

M45-49

189

24 Miles→Finish

24.0 - 26.2 mi

Top 76%
~flat
+2ft-2ft

Overall

3739

Males

2762

M45-49

221

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
178*
Passed By
1273
Net Change
-1095
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2.2 Miles----#662
2.2 Miles → 5.7 Miles8739+48#662#614
5.7 Miles → 6.43 Miles1415-1#614#615
6.43 Miles → 10.92 Miles4025+15#615#600
10.92 Miles → Garmin Hill Challenge58-3#600#603
Garmin Hill Challenge → 14.95 Miles1249-37#603#640
14.95 Miles → 18 Miles6*186-180#640#820
18 Miles → 24 Miles8*714-706#820#1526
24 Miles → Finish6*237-231#1526#1757
TOTALS178*1273-1095

* 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