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SF MARATHON 1ST HALF 2023

Rebecca Lui

Castro Valley, CA

Bib: 11413 F 29

0:00
0:00
/ mi
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Overall
#0 / 6072
Top 16%
Gender (Female)
#0 / 2732
Top 9%
Division (F25-29)
#0 / 629
Top 12%
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
8:09/mi
11:24
→ flat
2.13M
16:00/mi
23:05
→ flat
6.43M
10:20/mi
1:07:29
↑ 274↓ 78
6.62M
-31:-30/mi
1:01:41
↑ 16
10.65M
8:33/mi
1:36:10
↑ 153↓ 361
Finish· 13.11 mi
7:56/mi
1:55:41
↑ 244↓ 114
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6.62M
1:01:419:19 /mi+12.5%
2nd Half
54:008:19 /mi✓ faster
Negative split — 12.5% 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
11:248:091.40 mi11:24
8:09
-
2.13M
23:0510:500.73 mi11:41
16:00
+7:51
6.43M
1:07:2910:304.30 mi44:24
10:20
-5:40
6.62M
1:01:419:190.19 mi
-31:-30
-41:50
10.65M
1:36:109:024.03 mi34:29
8:33
+40:03
Finish(13.11 mi)
1:55:418:492.46 mi19:31
7:56
-0:37
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

-32:-30 /mi

Average Pace

8:49 /mi

Slowest Pace

16:00 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

1:55:41

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:49 /mi

Loading chart...
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. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
1.40M1.40 mi104627381104627381
2.13M0.73 mi857+189211+6265+1681521161
6.43M4.30 mi1040-183258-4781-16120430589
6.62M0.19 mi1025+15257+181---
10.65M4.03 mi1007+18249+878+3110627974
Finish(13.11 mi)2.46 mi978+29234+1573+596122563

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 17%
~flat
+3ft-2ft

Overall

1046

Females

273

F25-29

82

1.40M→2.13M

1.4 - 2.1 mi

Top 13%
~flat
+3ft-1ft

Overall

815

Females

211

F25-29

64

2.13M→6.43M

2.1 - 6.4 mi

Top 20%
×17story building
+274ft-78ft

Overall

1204

Females

305

F25-29

89

6.43M→6.62M

6.4 - 6.6 mi

×1story
+16ft-0ft

Overall

-

Females

-

F25-29

-

6.62M→10.65M

6.6 - 10.7 mi

Top 18%
×21story building
+153ft-361ft

Overall

1106

Females

279

F25-29

74

10.65M→Finish

10.7 - 13.1 mi

Top 16%
×17story building
+244ft-114ft

Overall

961

Females

225

F25-29

63

Passing Analysis

Category:
▲Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 1.40M-#1046
1.40M → 2.13M
24213+189
#1046 → #857
2.13M → 6.43M
22845-183
#857 → #1040
6.43M → 6.62M
2641+15
#1040 → #1025
6.62M → 10.65M
5573*+18
#1025 → #1007
10.65M → Finish
3362*+29
#1007 → #978
TOTALS
366434*+68
#1046 → #978

* 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

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