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SF MARATHON 1ST HALF 2023

David Katz

Los Gatos, CA

Bib: 12288 M 31

0:00
0:00
/ mi
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Overall
#0 / 6072
Top 45%
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
9:08/mi
12:47
→ flat
11 ft elev
2.13M
18:38/mi
26:23
→ flat
13 ft elev
6.43M
12:17/mi
1:19:12
↑ 274↓ 780.9%
213 ft elev
6.62M
-37:-38/mi
1:12:14
↑ 161.6%
239 ft elev
10.65M
9:40/mi
1:51:12
↑ 153↓ 3611.0%
48 ft elev
Finish· 13.11 mi
9:18/mi
2:14:03
↑ 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
1:12:1410:55 /mi+14.4%
2nd Half
1:01:499:32 /mi✓ faster
Negative split — 14.4% 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
12:479:081.40 mi12:47
9:08
-
2.13M
26:2312:230.73 mi13:36
18:38
+9:30
6.43M
1:19:1212:194.30 mi52:49
12:17
-6:21
6.62M
1:12:1410:550.19 mi
-37:-38
-49:55
10.65M
1:51:1210:264.03 mi38:58
9:40
+47:18
Finish(13.11 mi)
2:14:0310:142.46 mi22:51
9:18
-0:22
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

-38:-38 /mi

Average Pace

10:14 /mi

Slowest Pace

18:38 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:14:03

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:14 /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. DistOverallMalesM30-34Seg. OverallSeg. MalesSeg. M30-34
1.40M1.40 mi2617173637826171736378
2.13M0.73 mi2553+641698+38370+826711762394
6.43M4.30 mi3115-5621998-300449-7934242152481
6.62M0.19 mi3092+231983+15444+5---
10.65M4.03 mi2850+2421863+120430+1425481683391
Finish(13.11 mi)2.46 mi2748+1021804+59417+1324721601359

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 43%
~flat
+3ft-2ft

Overall

2617

Males

1736

M30-34

380

1.40M→2.13M

1.4 - 2.1 mi

Top 44%
~flat
+3ft-1ft

Overall

2671

Males

1762

M30-34

397

2.13M→6.43M

2.1 - 6.4 mi

Top 56%
×17story building
+274ft-78ft

Overall

3424

Males

2152

M30-34

483

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 42%
×21story building
+153ft-361ft

Overall

2548

Males

1683

M30-34

393

10.65M→Finish

10.7 - 13.1 mi

Top 41%
×17story building
+244ft-114ft

Overall

2472

Males

1601

M30-34

359

Passing Analysis

Category:
▼Net Change
0
0 passed by0* passed
SegmentMovementRank
Start → 1.40M-#2617
1.40M → 2.13M
141205+64
#2617 → #2553
2.13M → 6.43M
64785*-562
#2553 → #3115
6.43M → 6.62M
5477+23
#3115 → #3092
6.62M → 10.65M
57299*+242
#3092 → #2850
10.65M → Finish
50152*+102
#2850 → #2748
TOTALS
949818*-131
#2617 → #2748

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

Passing Visualized

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Passing Circle

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Position Flow

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Race Lanes

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