San Francisco Marathon logo
SF MARATHON 1ST HALF 2025

Lingfeng Sun

Redwood City, CA

Bib: 11980 M 29

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 7100
Top 34%
Gender (Male)
#0 / 3977
Top 43%
Division (M25-29)
#0 / 899
Top 48%
Race Day Weather
56°/46°F
light rain

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
10 ft elev
1.81M
9:28/mi
17:09
→ flat
12 ft elev
5.34M
9:30/mi
50:40
↑ 80↓ 74
19 ft elev
6.15M
9:39/mi
58:29
↑ 1262.8%
149 ft elev
10.54M
9:27/mi
1:40:00
↑ 230↓ 3610.6%
20 ft elev
11.05M
13:06/mi
1:46:41
↑ 1726.4%
213 ft elev
Finish· 13.11 mi
10:15/mi
2:07:48
↑ 97↓ 1140.2%
205 ft elev
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Is this your race?

Claim it for a free AI report

A coach's-eye read of your race — emailed to you, free.

Half Splits

1st Half· via 6.15MFaster
Distance6.15 mi
Time58:29
Pace9:31 /mi
2nd Half
Distance6.96 mi
Time1:09:19
Pace9:58 /mi
📊Positive Split: 18.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
1.81M
1.81 mi06:52:5617:099:2817:09
9:28
-
5.34M
5.34 mi07:26:2750:409:2933:31
9:30
+0:02
6.15M
6.15 mi07:34:1658:299:317:49
9:39
+0:09
10.54M
10.54 mi08:15:471:40:009:2941:31
9:27
-0:12
11.05M
11.05 mi08:22:281:46:419:396:41
13:06
+3:39
Finish
13.11 mi08:43:352:07:489:4521:07
10:15
-2:51

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

9:27 /mi

Average Pace

9:45 /mi

Slowest Pace

13:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:01:07

95% of race

Time at Slower Pace

6:41

5% of race

Average Pace: 9:45 /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...
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
1.81M
1.81 mi06:52:5617:099:2817:09
9:28
#2826
5.34M
5.34 mi07:26:2750:409:2933:31
9:30
#2669
6.15M
6.15 mi07:34:1658:299:317:49
9:39
#2589
10.54M
10.54 mi08:15:471:40:009:2941:31
9:27
#2356
11.05M
11.05 mi08:22:281:46:419:396:41
13:06
#2332
Finish
13.11 mi08:43:352:07:489:4521:07
10:15
#2391
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
1.81M1.81 mi1.81 mi2826198348328261983483
5.34M5.34 mi3.53 mi2669+1571881+102459+2426261850455
6.15M6.15 mi0.81 mi2589+801838+43451+822061615416
10.54M10.54 mi4.39 mi2356+2331699+139426+2521771592406
11.05M11.05 mi0.51 mi2332+241684+15430-425421781475
Finish13.11 mi2.06 mi2391-591708-24432-227801869473

Segment Performance Analysis

Start → 1.81M

0.0 - 1.8 mi

Top 40%
~flat
+4ft-3ft

Overall

2826

Males

1983

M25-29

484

1.81M→5.34M

1.8 - 5.3 mi

Top 37%
×4story building
+80ft-74ft

Overall

2626

Males

1850

M25-29

456

5.34M→6.15M

5.3 - 6.2 mi

Top 31%
×10story building
+126ft-4ft

Overall

2206

Males

1615

M25-29

417

6.15M→10.54M

6.2 - 10.5 mi

Top 31%
×21story building
+230ft-361ft

Overall

2177

Males

1592

M25-29

407

10.54M→11.05M

10.5 - 11.1 mi

Top 36%
×14story building
+172ft-0ft

Overall

2542

Males

1781

M25-29

476

11.05M→Finish

11.1 - 13.1 mi

Top 39%
×7story building
+97ft-114ft

Overall

2780

Males

1869

M25-29

473

Passing Analysis

Category:
Athletes Passed
752*
Passed By
317
Net Change
+435
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 1.81M----#2826
1.81M → 5.34M274*117+157#2826#2669
5.34M → 6.15M9111+80#2669#2589
6.15M → 10.54M287*54+233#2589#2356
10.54M → 11.05M5935+24#2356#2332
11.05M → Finish41*100-59#2332#2391
TOTALS752*317+435

* Includes athletes who did not complete a segment (DNF/DNQ).

Passing Charts

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