San Francisco Marathon logo
SF MARATHON 1ST HALF 2026

Don Szeto

Bib: 18187•M•Age: 51

Cypress, CA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 6575
Top 49%
Gender (Male)
#0 / 3619
Masters (Masters Men)
#0 / 1030
Top 49%
Division (M50-54)
#0 / 196
Top 50%
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2M
9:39/mi
19:19
→ flat
4M
10:00/mi
39:19
↑ 67↓ 69
6M
10:29/mi
1:00:17
↑ 1231.1%
8M
12:15/mi
1:24:48
↑ 166↓ 531.1%
9.6M
8:47/mi
1:38:52
↑ 68↓ 1931.5%
10M
20:06/mi
1:46:54
↓ 241.1%
10.5M
5:20/mi
1:49:34
↓ 732.7%
12M
14:59/mi
2:12:03
↑ 2803.2%
Finish· 13.11 mi
9:51/mi
2:22:59
↑ 14↓ 891.3%

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.

Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:00:17
Pace10:03 /mi
2nd Half
Distance7.11 mi
Time1:22:42
Pace11:38 /mi
📊Positive Split: 37.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:08:5519:199:3919:19
9:39
-
4M
4.00 mi07:28:5539:199:5020:00
10:00
+0:21
6M
6.00 mi07:49:531:00:1710:0320:58
10:29
+0:29
8M
8.00 mi08:14:241:24:4810:3624:31
12:15
+1:46
9.6M
9.60 mi08:28:281:38:5210:1814:04
8:47
-3:28
10M
10.00 mi08:36:301:46:5410:418:02
20:06
+11:19
10.5M
10.50 mi08:39:101:49:3410:262:40
5:20
-14:46
12M
12.00 mi09:01:392:12:0311:0022:29
14:59
+9:39
Finish
13.11 mi09:12:352:22:5910:5410:56
9:51
-5:08

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

5:20 /mi

Average Pace

10:54 /mi

Slowest Pace

20:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:40

2% of race

Time at Steady Pace

1:25:17

60% of race

Time at Slower Pace

55:02

38% of race

Average Pace: 10:54 /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
2M
2.00 mi07:08:5519:199:3919:19
9:39
#2517
4M
4.00 mi07:28:5539:199:5020:00
10:00
#2605
6M
6.00 mi07:49:531:00:1710:0320:58
10:29
#2822
8M
8.00 mi08:14:241:24:4810:3624:31
12:15
#3442
9.6M
9.60 mi08:28:281:38:5210:1814:04
8:47
#3243
10M
10.00 mi08:36:301:46:5410:418:02
20:06
#3253
10.5M
10.50 mi08:39:101:49:3410:262:40
5:20
#3264
12M
12.00 mi09:01:392:12:0311:0022:29
14:59
#3298
Finish
13.11 mi09:12:352:22:5910:5410:56
9:51
#3230
Faster pace
Steady pace
Slower pace
Featured Segment

Garmin Challenge

Top 54%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

10:42

Segment Time

11:54/mi

Pace

0.90 mi

Distance

Overall

3529

Men

2272

Division

108

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
2M2.00 mi2.00 mi25171783753537(Top 54%)2233(Top 62%)99(Top 51%)
4M4.00 mi2.00 mi2605-881820-3779-42801(Top 43%)1937(Top 54%)85(Top 43%)
6M6.00 mi2.00 mi2822-2171951-13186-73272(Top 50%)2199(Top 61%)97(Top 49%)
8M8.00 mi2.00 mi3442-6202292-341107-214816(Top 73%)2988(Top 83%)143(Top 73%)
9.6M9.60 mi1.60 mi3243+1992189+103102+52456(Top 37%)1587(Top 44%)71(Top 36%)
10M10.00 mi0.40 mi3253-102190-11023525(Top 54%)2259(Top 62%)112(Top 57%)
10.5M10.50 mi0.50 mi3264-112193-31023959(Top 60%)2514(Top 69%)122(Top 62%)
12M12.00 mi1.50 mi3298-342199-6100+23537(Top 54%)2233(Top 62%)99(Top 51%)
Finish13.11 mi1.11 mi3230+682161+3898+22697(Top 41%)1819(Top 50%)80(Top 41%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 54%
~flat
+5ft-3ft

Overall

3537

Males

2233

M50-54

99

2M→4M

2.0 - 4.0 mi

Top 43%
×4story building
+67ft-69ft

Overall

2801

Males

1937

M50-54

85

4M→6M

4.0 - 6.0 mi

Top 50%
×9story building
+123ft-9ft

Overall

3272

Males

2199

M50-54

97

6M→8M

6.0 - 8.0 mi

Top 73%
×12story building
+166ft-53ft

Overall

4816

Males

2988

M50-54

143

8M→9.6M

8.0 - 9.6 mi

Top 37%
×13story building
+68ft-193ft

Overall

2456

Males

1587

M50-54

71

9.6M→10M

9.6 - 10.0 mi

Top 54%
×2story building
+0ft-24ft

Overall

3525

Males

2259

M50-54

112

10M→10.5M

10.0 - 10.5 mi

Top 60%
×6story building
+1ft-73ft

Overall

3959

Males

2514

M50-54

122

10.5M→12M

10.5 - 12.0 mi

Top 54%
×21story building
+280ft-26ft

Overall

3537

Males

2233

M50-54

99

12M→Finish

12.0 - 13.1 mi

Top 41%
×7story building
+14ft-89ft

Overall

2697

Males

1819

M50-54

80

Passing Analysis

Category:
Athletes Passed
588*
Passed By
1301
Net Change
-713
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#2517
2M → 4M104192-88#2517#2605
4M → 6M30247-217#2605#2822
6M → 8M9*629-620#2822#3442
8M → 9.6M25051+199#3442#3243
9.6M → 10M3747-10#3243#3253
10M → 10.5M516-11#3253#3264
10.5M → 12M73107-34#3264#3298
12M → Finish80*12+68#3298#3230
TOTALS588*1301-713

* 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

Official Timing Data

The San Francisco Marathon

The San Francisco Marathon

Race Place Events

Race Place Events