San Francisco Marathon logo
SF MARATHON 1ST HALF 2026

Chaochen Guo

Bib: 17869•M•Age: 24

Newport Beach, CA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 6575
Top 33%
Gender (Male)
#0 / 3619
Top 43%
M20-29
#0 / 358
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
10:06/mi
20:12
→ flat
4M
10:46/mi
41:43
↑ 67↓ 69
6M
9:29/mi
1:00:42
↑ 1231.1%
8M
9:13/mi
1:19:09
↑ 166↓ 531.1%
9.6M
9:13/mi
1:33:54
↑ 68↓ 1931.5%
10M
15:46/mi
1:40:12
↓ 241.1%
10.5M
4:04/mi
1:42:14
↓ 732.7%
12M
13:04/mi
2:01:50
↑ 2803.2%
Finish· 13.11 mi
8:48/mi
2:11:36
↑ 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
Time1:00:42
Pace10:07 /mi
2nd Half
Distance7.11 mi
Time1:10:54
Pace9:58 /mi
📊Positive Split: 16.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:00:2920:1210:0620:12
10:06
-
4M
4.00 mi07:22:0041:4310:2621:31
10:46
+0:40
6M
6.00 mi07:40:591:00:4210:0718:59
9:29
-1:17
8M
8.00 mi07:59:261:19:099:5418:27
9:13
-0:16
9.6M
9.60 mi08:14:111:33:549:4714:45
9:13
0:00
10M
10.00 mi08:20:291:40:1210:016:18
15:46
+6:33
10.5M
10.50 mi08:22:311:42:149:442:02
4:04
-11:42
12M
12.00 mi08:42:072:01:5010:0919:36
13:04
+9:00
Finish
13.11 mi08:51:532:11:3610:029:46
8:48
-4:16

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

4:04 /mi

Average Pace

10:02 /mi

Slowest Pace

15:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:02

2% of race

Time at Steady Pace

1:43:40

79% of race

Time at Slower Pace

25:54

20% of race

Average Pace: 10:02 /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 mi07:00:2920:1210:0620:12
10:06
#3185
4M
4.00 mi07:22:0041:4310:2621:31
10:46
#3582
6M
6.00 mi07:40:591:00:4210:0718:59
9:29
#2935
8M
8.00 mi07:59:261:19:099:5418:27
9:13
#2491
9.6M
9.60 mi08:14:111:33:549:4714:45
9:13
#2526
10M
10.00 mi08:20:291:40:1210:016:18
15:46
#2390
10.5M
10.50 mi08:22:311:42:149:442:02
4:04
#2342
12M
12.00 mi08:42:072:01:5010:0919:36
13:04
#2267
Finish
13.11 mi08:51:532:11:3610:029:46
8:48
#2167
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 15%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

8:20

Segment Time

9:16/mi

Pace

0.90 mi

Distance

Overall

972

Men

771

Division

105

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM20-29Seg. OverallSeg. MalesSeg. M20-29
2M2.00 mi2.00 mi318521372401972(Top 30%)1400(Top 39%)167(Top 47%)
4M4.00 mi2.00 mi3582-3972364-227272-323912(Top 59%)2534(Top 70%)288(Top 80%)
6M6.00 mi2.00 mi2935+6472012+352241+312041(Top 31%)1490(Top 41%)185(Top 52%)
8M8.00 mi2.00 mi2491+4441779+233211+301489(Top 23%)1145(Top 32%)127(Top 35%)
9.6M9.60 mi1.60 mi2526-351775+4210+13032(Top 46%)1890(Top 52%)216(Top 60%)
10M10.00 mi0.40 mi2390+1361690+85200+101118(Top 17%)858(Top 24%)109(Top 30%)
10.5M10.50 mi0.50 mi2342+481661+29196+4770(Top 12%)628(Top 17%)88(Top 25%)
12M12.00 mi1.50 mi2267+751614+47195+11972(Top 30%)1400(Top 39%)167(Top 47%)
Finish13.11 mi1.11 mi2167+1001548+66191+41431(Top 22%)1084(Top 30%)145(Top 41%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 30%
~flat
+5ft-3ft

Overall

1972

Males

1400

M20-24

168

2M→4M

2.0 - 4.0 mi

Top 59%
×4story building
+67ft-69ft

Overall

3912

Males

2534

M20-24

290

4M→6M

4.0 - 6.0 mi

Top 31%
×9story building
+123ft-9ft

Overall

2041

Males

1490

M20-24

186

6M→8M

6.0 - 8.0 mi

Top 23%
×12story building
+166ft-53ft

Overall

1489

Males

1145

M20-24

128

8M→9.6M

8.0 - 9.6 mi

Top 46%
×13story building
+68ft-193ft

Overall

3032

Males

1890

M20-24

217

9.6M→10M

9.6 - 10.0 mi

Top 17%
×2story building
+0ft-24ft

Overall

1118

Males

858

M20-24

110

10M→10.5M

10.0 - 10.5 mi

Top 12%
×6story building
+1ft-73ft

Overall

770

Males

628

M20-24

88

10.5M→12M

10.5 - 12.0 mi

Top 30%
×21story building
+280ft-26ft

Overall

1972

Males

1400

M20-24

168

12M→Finish

12.0 - 13.1 mi

Top 22%
×7story building
+14ft-89ft

Overall

1431

Males

1084

M20-24

145

Passing Analysis

Category:
Athletes Passed
1654*
Passed By
636
Net Change
+1018
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#3185
2M → 4M60457-397#3185#3582
4M → 6M6492+647#3582#2935
6M → 8M448*4+444#2935#2491
8M → 9.6M93128-35#2491#2526
9.6M → 10M1360+136#2526#2390
10M → 10.5M480+48#2390#2342
10.5M → 12M11742+75#2342#2267
12M → Finish103*3+100#2267#2167
TOTALS1654*636+1018

* 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