San Francisco Marathon logo
SF MARATHON 1ST HALF 2023

Justin Greer

Concord, CA

Bib: 12654 M 34

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
10 ft elev
1.40M
14:20/mi
20:04
→ flat
11 ft elev
2.13M
19:46/mi
34:30
→ flat
13 ft elev
6.43M
15:12/mi
1:39:50
↑ 274↓ 780.9%
213 ft elev
6.62M
-49:-7/mi
1:30:41
↑ 161.6%
239 ft elev
10.65M
11:27/mi
2:16:51
↑ 153↓ 3611.0%
48 ft elev
Finish· 13.11 mi
12:30/mi
2:47:36
↑ 244↓ 1141.0%
205 ft elev
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6.62M
1:30:4113:42 /mi+15.2%
2nd Half
1:16:5511:51 /mi✓ faster
Negative split — 15.2% 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
20:0414:201.40 mi20:04
14:20
-
2.13M
34:3016:120.73 mi14:26
19:46
+5:26
6.43M
1:39:5015:324.30 mi1:05:20
15:12
-4:34
6.62M
1:30:4113:420.19 mi
-49:-7
-64:19
10.65M
2:16:5112:514.03 mi46:10
11:27
+60:34
Finish(13.11 mi)
2:47:3612:472.46 mi30:45
12:30
+1:03
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

-50:-7 /mi

Average Pace

12:47 /mi

Slowest Pace

19:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:47:36

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 12:47 /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 mi5836325270958363252709
2.13M0.73 mi5582+2543171+81702+736352266513
6.43M4.30 mi5531+513136+35699+354693109693
6.62M0.19 mi5504+273121+15698+1---
10.65M4.03 mi5238+2663009+112675+2345862720608
Finish(13.11 mi)2.46 mi52382993+16674+151972948669

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 96%
~flat
+3ft-2ft

Overall

5836

Males

3252

M30-34

713

1.40M→2.13M

1.4 - 2.1 mi

Top 60%
~flat
+3ft-1ft

Overall

3635

Males

2266

M30-34

516

2.13M→6.43M

2.1 - 6.4 mi

Top 90%
×17story building
+274ft-78ft

Overall

5469

Males

3109

M30-34

697

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 76%
×21story building
+153ft-361ft

Overall

4586

Males

2720

M30-34

610

10.65M→Finish

10.7 - 13.1 mi

Top 86%
×17story building
+244ft-114ft

Overall

5197

Males

2948

M30-34

669

Passing Analysis

Category:
Passed
897*
Passed By
299
Net Change
+598
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 1.40M----#5836
1.40M → 2.13M285*31+254#5836#5582
2.13M → 6.43M210*159+51#5582#5531
6.43M → 6.62M5023+27#5531#5504
6.62M → 10.65M282*16+266#5504#5238
10.65M → Finish70*700#5238#5238
TOTALS897*299+598

* 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

Public Race Data

The San Francisco Marathon

The San Francisco Marathon

Race Place Events

Race Place Events