San Francisco Marathon logo
SF MARATHON 2023

Mookyung Son

Bib: 744•M•Age: 49

Cupertino, CA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 4888
Top 6%
Gender (Male)
#0 / 3570
Top 8%
Masters (Masters Men)
#0 / 1128
Top 5%
Division (M45-49)
#0 / 279
Top 5%
Race Day Weather
69°/59°F
broken clouds

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
2.2 Miles
13:58
Rank: #216
Start → 2.2 Miles
13:58 | 6:21/mi
5.7 Miles
41:17
Rank: #224 (-8)
2.2 Miles → 5.7 Miles
27:19 | 7:48/mi
6.43 Miles
48:43
Rank: #225 (-1)
5.7 Miles → 6.43 Miles
7:26 | 10:11/mi
10.92 Miles
1:20:29
Rank: #231 (-6)
6.43 Miles → 10.92 Miles
31:46 | 7:04/mi
Garmin Hill Challenge· 11.42 mi
1:25:16
Rank: #243 (-12)
10.92 Miles → Garmin Hill Challenge
4:47 | 9:34/mi
14.95 Miles
1:49:05
Rank: #235 (+8)
Garmin Hill Challenge → 14.95 Miles
23:49 | 6:45/mi
18 Miles
2:15:37
Rank: #249 (-14)
14.95 Miles → 18 Miles
26:32 | 8:42/mi
24 Miles
3:04:37
Rank: #283 (-34)
18 Miles → 24 Miles
49:00 | 8:10/mi
Finish· 26.22 mi
3:23:07
Rank: #301 (-18)
24 Miles → Finish
18:30 | 8:20/mi

Course Map & Elevation

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 mi05:30:3513:586:2113:58
6:21
-
5.7 Miles
5.70 mi05:57:5441:177:1527:19
7:48
+1:27
6.43 Miles
6.43 mi06:05:2048:437:357:26
10:11
+2:23
10.92 Miles
10.92 mi06:37:061:20:297:2231:46
7:04
-3:07
Garmin Hill Challenge
11.42 mi06:41:531:25:167:284:47
9:34
+2:30
14.95 Miles
14.95 mi07:05:421:49:057:1823:49
6:45
-2:49
18 Miles
18.00 mi07:32:142:15:377:3226:32
8:42
+1:57
24 Miles
24.00 mi08:21:143:04:377:4249:00
8:10
-0:32
Finish
26.22 mi08:39:443:23:077:4518:30
8:20
+0:10

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

6:21 /mi

Average Pace

7:45 /mi

Slowest Pace

10:11 /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

1:09:33

34% of race

Time at Steady Pace

2:01:21

60% of race

Time at Slower Pace

12:13

6% of race

Average Pace: 7:45 /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 mi05:30:3513:586:2113:58
6:21
#216
5.7 Miles
5.70 mi05:57:5441:177:1527:19
7:48
#224
6.43 Miles
6.43 mi06:05:2048:437:357:26
10:11
#225
10.92 Miles
10.92 mi06:37:061:20:297:2231:46
7:04
#231
Garmin Hill Challenge
11.42 mi06:41:531:25:167:284:47
9:34
#243
14.95 Miles
14.95 mi07:05:421:49:057:1823:49
6:45
#235
18 Miles
18.00 mi07:32:142:15:377:3226:32
8:42
#249
24 Miles
24.00 mi08:21:143:04:377:4249:00
8:10
#283
Finish
26.22 mi08:39:443:23:077:4518:30
8:20
#301
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
2.2 Miles2.20 mi2.20 mi21620415216(Top 4%)204(Top 6%)15(Top 5%)
5.7 Miles5.70 mi3.50 mi224-8212-815243(Top 5%)230(Top 6%)14(Top 5%)
6.43 Miles6.43 mi0.73 mi225-1213-114+1244(Top 5%)226(Top 6%)12(Top 4%)
10.92 Miles10.92 mi4.49 mi231-6218-515-1261(Top 5%)248(Top 7%)13(Top 5%)
Garmin Hill Challenge11.42 mi0.50 mi243-12230-1215474(Top 10%)443(Top 12%)16(Top 6%)
14.95 Miles14.95 mi3.53 mi235+8223+714+1243(Top 5%)230(Top 6%)13(Top 5%)
18 Miles18.00 mi3.05 mi249-14237-1414420(Top 9%)394(Top 11%)23(Top 8%)
24 Miles24.00 mi6.00 mi283-34265-2814516(Top 11%)471(Top 13%)32(Top 11%)
Finish26.22 mi2.22 mi301-18284-1915-1652(Top 13%)573(Top 16%)40(Top 14%)

Segment Performance Analysis

Start → 2.2 Miles

0.0 - 2.2 mi

Top 4%
×1human
+8ft-12ft

Overall

216

Males

204

M45-49

15

2.2 Miles→5.7 Miles

2.2 - 5.7 mi

Top 5%
×6stories
+92ft-87ft

Overall

243

Males

230

M45-49

14

5.7 Miles→6.43 Miles

5.7 - 6.4 mi

Top 5%
×11stories
+137ft-3ft

Overall

244

Males

226

M45-49

12

6.43 Miles→10.92 Miles

6.4 - 10.9 mi

Top 5%
×21stories
+225ft-318ft

Overall

261

Males

248

M45-49

13

10.92 Miles→Garmin Hill Challenge

10.9 - 11.4 mi

Top 10%
×11stories
+134ft-123ft

Overall

474

Males

443

M45-49

16

Garmin Hill Challenge→14.95 Miles

11.4 - 14.9 mi

Top 5%
×16stories
+234ft-225ft

Overall

243

Males

230

M45-49

13

14.95 Miles→18 Miles

14.9 - 18.0 mi

Top 9%
×12stories
+165ft-60ft

Overall

420

Males

394

M45-49

23

18 Miles→24 Miles

18.0 - 24.0 mi

Top 11%
×21stories
+142ft-377ft

Overall

516

Males

471

M45-49

32

24 Miles→Finish

24.0 - 26.2 mi

Top 13%
~flat
+2ft-2ft

Overall

652

Males

573

M45-49

40

Passing Analysis

Category:
Athletes Passed
74*
Passed By
159
Net Change
-85
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2.2 Miles----#216
2.2 Miles → 5.7 Miles1220-8#216#224
5.7 Miles → 6.43 Miles78-1#224#225
6.43 Miles → 10.92 Miles1016-6#225#231
10.92 Miles → Garmin Hill Challenge012-12#231#243
Garmin Hill Challenge → 14.95 Miles124+8#243#235
14.95 Miles → 18 Miles11*25-14#235#249
18 Miles → 24 Miles16*50-34#249#283
24 Miles → Finish624-18#283#301
TOTALS74*159-85

* 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