San Francisco Marathon logo
SF MARATHON 1ST HALF 2023

Lujing Cen

Bib: 13416•M•Age: 25

San Francisco, CA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 6072
Top 37%
Gender (Male)
#0 / 3331
Top 45%
Division (M25-29)
#0 / 688
Race Day Weather
60°/50°F
overcast 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
1.40M
9:51/mi
13:47
→ flat
2.13M
20:18/mi
28:36
→ flat
6.43M
11:12/mi
1:16:45
↑ 274↓ 780.9%
6.62M
-33:-10/mi
1:10:38
↑ 161.6%
10.65M
9:00/mi
1:46:55
↑ 153↓ 3611.0%
Finish· 13.11 mi
8:57/mi
2:08:56
↑ 244↓ 1141.0%

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 6.62M
Distance6.62 mi
Time1:10:38
Pace10:40 /mi
2nd Half✓ Faster
Distance6.49 mi
Time58:18
Pace8:59 /mi
📊Negative Split: 17.5% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
1.40M
1.40 mi07:05:1413:479:5113:47
9:51
-
2.13M
2.13 mi07:20:0328:3613:2614:49
20:18
+10:27
6.43M
6.43 mi08:08:121:16:4511:5648:09
11:12
-9:06
6.62M
6.62 mi08:02:051:10:3810:40
-33:-10
-44:22
10.65M
10.65 mi08:38:221:46:5510:0236:17
9:00
+42:10
Finish
13.11 mi09:00:232:08:569:5022:01
8:57
-0:03

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

-34:-10 /mi

Average Pace

9:50 /mi

Slowest Pace

20:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:08:56

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:50 /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
1.40M
1.40 mi07:05:1413:479:5113:47
9:51
#3781
2.13M
2.13 mi07:20:0328:3613:2614:49
20:18
#3816
6.43M
6.43 mi08:08:121:16:4511:5648:09
11:12
#2637
6.62M
6.62 mi08:02:051:10:3810:40
-33:-10
#2748
10.65M
10.65 mi08:38:221:46:5510:0236:17
9:00
#2283
Finish
13.11 mi09:00:232:08:569:5022:01
8:57
#2219
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
1.40M1.40 mi1.40 mi378123495293781(Top 62%)2349(Top 71%)529(Top 77%)
2.13M2.13 mi0.73 mi3816-352355-6531-23983(Top 66%)2432(Top 73%)536(Top 78%)
6.43M6.43 mi4.30 mi2637+11791758+597407+1242190(Top 36%)1485(Top 45%)340(Top 49%)
6.62M6.62 mi0.19 mi2748-1111809-51414-7---
10.65M10.65 mi4.03 mi2283+4651538+271356+581632(Top 27%)1180(Top 35%)277(Top 40%)
Finish13.11 mi2.46 mi2219+641502+36353+32093(Top 34%)1412(Top 42%)328(Top 48%)

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 62%
~flat
+3ft-2ft

Overall

3781

Males

2349

M25-29

532

1.40M→2.13M

1.4 - 2.1 mi

Top 66%
~flat
+3ft-1ft

Overall

3983

Males

2432

M25-29

542

2.13M→6.43M

2.1 - 6.4 mi

Top 36%
×17story building
+274ft-78ft

Overall

2190

Males

1485

M25-29

342

6.43M→6.62M

6.4 - 6.6 mi

×1story
+16ft-0ft

Overall

-

Males

-

M25-29

-

6.62M→10.65M

6.6 - 10.7 mi

Top 27%
×21story building
+153ft-361ft

Overall

1632

Males

1180

M25-29

278

10.65M→Finish

10.7 - 13.1 mi

Top 34%
×17story building
+244ft-114ft

Overall

2093

Males

1412

M25-29

328

Passing Analysis

Category:
Athletes Passed
2011*
Passed By
449
Net Change
+1562
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 1.40M----#3781
1.40M → 2.13M181216-35#3781#3816
2.13M → 6.43M1197*18+1179#3816#2637
6.43M → 6.62M27138-111#2637#2748
6.62M → 10.65M482*17+465#2748#2283
10.65M → Finish124*60+64#2283#2219
TOTALS2011*449+1562

* 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

Public Race Data

The San Francisco Marathon

The San Francisco Marathon

Race Place Events

Race Place Events