San Francisco Marathon logo
SF MARATHON 1ST HALF 2023

Chang Xu

Berkeley, CA

Bib: 15363 M 31

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 6072
Gender (Male)
#0 / 3331
Division (M30-34)
#0 / 723
Race Day Weather
60°/50°F
overcast clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
1.40M
10:54/mi
15:15
→ flat
2.13M
21:27/mi
30:55
→ flat
6.43M
12:46/mi
1:25:49
↑ 274↓ 78
6.62M
-38:-10/mi
1:18:45
↑ 16
10.65M
10:21/mi
2:00:27
↑ 153↓ 361
Finish· 13.11 mi
9:27/mi
2:23:41
↑ 244↓ 114
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6.62M
1:18:4511:54 /mi+17.5%
2nd Half
1:04:5610:00 /mi✓ faster
Negative split — 17.5% faster in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
1.40M
15:1510:541.40 mi15:15
10:54
-
2.13M
30:5514:310.73 mi15:40
21:27
+10:33
6.43M
1:25:4913:214.30 mi54:54
12:46
-8:41
6.62M
1:18:4511:540.19 mi
-38:-10
-50:56
10.65M
2:00:2711:194.03 mi41:42
10:21
+48:31
Finish(13.11 mi)
2:23:4110:582.46 mi23:14
9:27
-0:54
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

-39:-10 /mi

Average Pace

10:58 /mi

Slowest Pace

21:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:23:41

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:58 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

Loading...
0mi3.3mi6.6mi9.8mi13.1mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallMalesM30-34Seg. OverallSeg. MalesSeg. M30-34
1.40M1.40 mi5064294165550642941655
2.13M0.73 mi4832+2322844+97636+1947542804624
6.43M4.30 mi4171+6612556+288573+6339182413545
6.62M0.19 mi4250-792593-37580-7---
10.65M4.03 mi3923+3272416+177547+3334222134483
Finish(13.11 mi)2.46 mi3669+2542281+135512+3526511696382

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 83%
~flat
+3ft-2ft

Overall

5064

Males

2941

M30-34

658

1.40M→2.13M

1.4 - 2.1 mi

Top 78%
~flat
+3ft-1ft

Overall

4754

Males

2804

M30-34

627

2.13M→6.43M

2.1 - 6.4 mi

Top 65%
×17story building
+274ft-78ft

Overall

3918

Males

2413

M30-34

548

6.43M→6.62M

6.4 - 6.6 mi

×1story
+16ft-0ft

Overall

-

Males

-

M30-34

-

6.62M→10.65M

6.6 - 10.7 mi

Top 56%
×21story building
+153ft-361ft

Overall

3422

Males

2134

M30-34

485

10.65M→Finish

10.7 - 13.1 mi

Top 44%
×17story building
+244ft-114ft

Overall

2651

Males

1696

M30-34

382

Passing Analysis

Category:
▲Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 1.40M-#5064
1.40M → 2.13M
92324+232
#5064 → #4832
2.13M → 6.43M
97758*+661
#4832 → #4171
6.43M → 6.62M
12546-79
#4171 → #4250
6.62M → 10.65M
45372*+327
#4250 → #3923
10.65M → Finish
8262*+254
#3923 → #3669
TOTALS
3671762*+1395
#5064 → #3669

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

Passing Visualized

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