San Francisco Marathon logo
SF MARATHON 1ST HALF 2023

Spencer Herrick

San Francisco, CA

Bib: 16860 M 31

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 6072
Top 14%
Gender (Male)
#0 / 3331
Top 19%
Division (M30-34)
#0 / 723
Top 18%
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
8:39/mi
12:06
→ flat
2.13M
18:14/mi
25:25
→ flat
6.43M
10:15/mi
1:09:29
↑ 274↓ 78
6.62M
-28:-37/mi
1:04:14
↑ 16
10.65M
7:57/mi
1:36:16
↑ 153↓ 361
Finish· 13.11 mi
7:07/mi
1:53:46
↑ 244↓ 114
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6.62M
1:04:149:42 /mi+22.9%
2nd Half
49:327:38 /mi✓ faster
Negative split — 22.9% 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
12:068:391.40 mi12:06
8:39
-
2.13M
25:2511:560.73 mi13:19
18:14
+9:35
6.43M
1:09:2910:484.30 mi44:04
10:15
-7:59
6.62M
1:04:149:420.19 mi
-28:-37
-38:52
10.65M
1:36:169:024.03 mi32:02
7:57
+36:34
Finish(13.11 mi)
1:53:468:412.46 mi17:30
7:07
-0:50
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

-29:-37 /mi

Average Pace

8:41 /mi

Slowest Pace

18:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

1:53:46

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:41 /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 mi1785123226317851232263
2.13M0.73 mi1972-1871351-119285-2223111547339
6.43M4.30 mi1332+640973+378215+701121837189
6.62M0.19 mi1460-1281051-78229-14---
10.65M4.03 mi1018+442765+286163+6652542189
Finish(13.11 mi)2.46 mi824+194632+133128+3529624562

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 29%
~flat
+3ft-2ft

Overall

1785

Males

1232

M30-34

265

1.40M→2.13M

1.4 - 2.1 mi

Top 38%
~flat
+3ft-1ft

Overall

2311

Males

1547

M30-34

342

2.13M→6.43M

2.1 - 6.4 mi

Top 18%
×17story building
+274ft-78ft

Overall

1121

Males

837

M30-34

191

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 9%
×21story building
+153ft-361ft

Overall

525

Males

421

M30-34

91

10.65M→Finish

10.7 - 13.1 mi

Top 5%
×17story building
+244ft-114ft

Overall

296

Males

245

M30-34

62

Passing Analysis

Category:
▲Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 1.40M-#1785
1.40M → 2.13M
25972-187
#1785 → #1972
2.13M → 6.43M
16656*+640
#1972 → #1332
6.43M → 6.62M
13810-128
#1332 → #1460
6.62M → 10.65M
3445*+442
#1460 → #1018
10.65M → Finish
0194*+194
#1018 → #824
TOTALS
4161377*+961
#1785 → #824

* 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