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SF MARATHON 1ST HALF 2023

Brian Spencer

San Diego, CA

Bib: 11825 M 40

0:00
0:00
/ mi
Masters
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Overall
#0 / 6072
Top 12%
Gender (Male)
#0 / 3331
Top 18%
Masters (Masters Men)
#0 / 1028
Top 10%
Division (M40-44)
#0 / 332
Top 16%
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
7:52/mi
11:01
→ flat
2.13M
16:03/mi
22:44
→ flat
6.43M
9:50/mi
1:05:03
↑ 274↓ 78
6.62M
-29:-50/mi
59:34
↑ 16
10.65M
8:31/mi
1:33:52
↑ 153↓ 361
Finish· 13.11 mi
7:39/mi
1:52:41
↑ 244↓ 114
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6.62M
59:349:00 /mi+10.8%
2nd Half
53:078:11 /mi✓ faster
Negative split — 10.8% faster in the second half
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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
1.40M
11:017:521.40 mi11:01
7:52
-
2.13M
22:4410:400.73 mi11:43
16:03
+8:11
6.43M
1:05:0310:074.30 mi42:19
9:50
-6:13
6.62M
59:349:000.19 mi
-29:-50
-39:40
10.65M
1:33:528:494.03 mi34:18
8:31
+38:21
Finish(13.11 mi)
1:52:418:362.46 mi18:49
7:39
-0:52
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

-30:-50 /mi

Average Pace

8:36 /mi

Slowest Pace

16:03 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

1:52:41

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:36 /mi

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Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
1.40M1.40 mi7285525672855256
2.13M0.73 mi741-13566-145683762160
6.43M4.30 mi738+3577-1154+275958853
6.62M0.19 mi734+4569+852+2---
10.65M4.03 mi809-75624-5558-6104879168
Finish(13.11 mi)2.46 mi755+54583+4154+466453137

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 12%
~flat
+3ft-2ft

Overall

728

Males

552

M40-44

56

1.40M→2.13M

1.4 - 2.1 mi

Top 14%
~flat
+3ft-1ft

Overall

837

Males

621

M40-44

62

2.13M→6.43M

2.1 - 6.4 mi

Top 13%
×17story building
+274ft-78ft

Overall

759

Males

588

M40-44

53

6.43M→6.62M

6.4 - 6.6 mi

×1story
+16ft-0ft

Overall

-

Males

-

M40-44

-

6.62M→10.65M

6.6 - 10.7 mi

Top 17%
×21story building
+153ft-361ft

Overall

1048

Males

791

M40-44

68

10.65M→Finish

10.7 - 13.1 mi

Top 11%
×17story building
+244ft-114ft

Overall

664

Males

531

M40-44

37

Passing Analysis

Category:
▼Net Change
0
0 passed by0* passed
SegmentMovementRank
Start → 1.40M-#728
1.40M → 2.13M
8067-13
#728 → #741
2.13M → 6.43M
9093+3
#741 → #738
6.43M → 6.62M
2630+4
#738 → #734
6.62M → 10.65M
9924*-75
#734 → #809
10.65M → Finish
1266*+54
#809 → #755
TOTALS
307280*-27
#728 → #755

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

Passing Visualized

Category:
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Passing Circle

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Position Flow

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Race Lanes

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Public Race Data

The San Francisco Marathon

The San Francisco Marathon

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