San Francisco Marathon logo
SF MARATHON 1ST HALF 2026

Ying Yeung Chow

Bib: 17321•M•Age: 33

San Bruno, CA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 6575
Gender (Male)
#0 / 3619
Division (M30-34)
#0 / 772
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
11:17/mi
22:34
→ flat
4M
11:17/mi
45:07
↑ 67↓ 69
6M
11:12/mi
1:07:31
↑ 1231.1%
8M
10:59/mi
1:29:28
↑ 166↓ 531.1%
9.6M
10:59/mi
1:47:02
↑ 68↓ 1931.5%
10M
26:14/mi
1:57:31
↓ 241.1%
10.5M
5:26/mi
2:00:14
↓ 732.7%
12M
17:32/mi
2:26:32
↑ 2803.2%
Finish· 13.11 mi
11:09/mi
2:38:54
↑ 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
Time1:07:31
Pace11:15 /mi
2nd Half
Distance7.11 mi
Time1:31:23
Pace12:51 /mi
📊Positive Split: 35.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:09:0622:3411:1722:34
11:17
-
4M
4.00 mi07:31:3945:0711:1722:33
11:17
0:00
6M
6.00 mi07:54:031:07:3111:1522:24
11:12
-0:05
8M
8.00 mi08:16:001:29:2811:1121:57
10:59
-0:13
9.6M
9.60 mi08:33:341:47:0211:0917:34
10:59
0:00
10M
10.00 mi08:44:031:57:3111:4510:29
26:14
+15:15
10.5M
10.50 mi08:46:462:00:1411:272:43
5:26
-20:48
12M
12.00 mi09:13:042:26:3212:1326:18
17:32
+12:06
Finish
13.11 mi09:25:262:38:5412:0712:22
11:09
-6:23

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

5:26 /mi

Average Pace

12:07 /mi

Slowest Pace

26:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:43

2% of race

Time at Steady Pace

1:59:24

75% of race

Time at Slower Pace

36:47

23% of race

Average Pace: 12:07 /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 mi07:09:0622:3411:1722:34
11:17
#5164
4M
4.00 mi07:31:3945:0711:1722:33
11:17
#4844
6M
6.00 mi07:54:031:07:3111:1522:24
11:12
#4571
8M
8.00 mi08:16:001:29:2811:1121:57
10:59
#4202
9.6M
9.60 mi08:33:341:47:0211:0917:34
10:59
#4370
10M
10.00 mi08:44:031:57:3111:4510:29
26:14
#4594
10.5M
10.50 mi08:46:462:00:1411:272:43
5:26
#4585
12M
12.00 mi09:13:042:26:3212:1326:18
17:32
#4750
Finish
13.11 mi09:25:262:38:5412:0712:22
11:09
#4656
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 86%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

13:12

Segment Time

14:40/mi

Pace

0.90 mi

Distance

Overall

5627

Men

3226

Division

690

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM30-34Seg. OverallSeg. MalesSeg. M30-34
2M2.00 mi2.00 mi516430996535173(Top 79%)3006(Top 83%)655(Top 85%)
4M4.00 mi2.00 mi4844+3202974+125621+324589(Top 70%)2846(Top 79%)599(Top 78%)
6M6.00 mi2.00 mi4571+2732857+117605+164120(Top 63%)2625(Top 73%)557(Top 72%)
8M8.00 mi2.00 mi4202+3692703+154565+403520(Top 54%)2335(Top 65%)502(Top 65%)
9.6M9.60 mi1.60 mi4370-1682750-47577-125012(Top 76%)2919(Top 81%)623(Top 81%)
10M10.00 mi0.40 mi4594-2242850-100610-335895(Top 90%)3322(Top 92%)710(Top 92%)
10.5M10.50 mi0.50 mi4585+92844+6608+24240(Top 64%)2639(Top 73%)576(Top 75%)
12M12.00 mi1.50 mi4750-1652910-66622-145173(Top 79%)3006(Top 83%)655(Top 85%)
Finish13.11 mi1.11 mi4656+942862+48613+94181(Top 64%)2570(Top 71%)560(Top 73%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 79%
~flat
+5ft-3ft

Overall

5173

Males

3006

M30-34

657

2M→4M

2.0 - 4.0 mi

Top 70%
×4story building
+67ft-69ft

Overall

4589

Males

2846

M30-34

602

4M→6M

4.0 - 6.0 mi

Top 63%
×9story building
+123ft-9ft

Overall

4120

Males

2625

M30-34

559

6M→8M

6.0 - 8.0 mi

Top 54%
×12story building
+166ft-53ft

Overall

3520

Males

2335

M30-34

504

8M→9.6M

8.0 - 9.6 mi

Top 76%
×13story building
+68ft-193ft

Overall

5012

Males

2919

M30-34

625

9.6M→10M

9.6 - 10.0 mi

Top 90%
×2story building
+0ft-24ft

Overall

5895

Males

3322

M30-34

712

10M→10.5M

10.0 - 10.5 mi

Top 64%
×6story building
+1ft-73ft

Overall

4240

Males

2639

M30-34

578

10.5M→12M

10.5 - 12.0 mi

Top 79%
×21story building
+280ft-26ft

Overall

5173

Males

3006

M30-34

657

12M→Finish

12.0 - 13.1 mi

Top 64%
×7story building
+14ft-89ft

Overall

4181

Males

2570

M30-34

560

Passing Analysis

Category:
Athletes Passed
1288*
Passed By
780
Net Change
+508
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#5164
2M → 4M37050+320#5164#4844
4M → 6M296*23+273#4844#4571
6M → 8M401*32+369#4571#4202
8M → 9.6M51219-168#4202#4370
9.6M → 10M8232-224#4370#4594
10M → 10.5M189+9#4594#4585
10.5M → 12M42*207-165#4585#4750
12M → Finish102*8+94#4750#4656
TOTALS1288*780+508

* 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