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SF MARATHON 1ST HALF 2023

Dr Rosalie Ip

Markham

Bib: 12270 F 51

0:00
0:00
/ mi
Masters
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Overall
#0 / 6072
Gender (Female)
#0 / 2732
Masters (Masters Women)
#0 / 746
Division (F50-54)
#0 / 145
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
10:26/mi
14:37
→ flat
2.13M
22:15/mi
30:52
→ flat
6.43M
14:07/mi
1:31:33
↑ 274↓ 78
6.62M
-43:-41/mi
1:23:26
↑ 16
10.65M
11:49/mi
2:11:05
↑ 153↓ 361
Finish· 13.11 mi
12:16/mi
2:41:15
↑ 244↓ 114
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6.62M
1:23:2612:36 /mi+6.7%
2nd Half
1:17:4912:00 /mi✓ faster
Negative split — 6.7% 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
14:3710:261.40 mi14:37
10:26
-
2.13M
30:5214:290.73 mi16:15
22:15
+11:49
6.43M
1:31:3314:144.30 mi1:00:41
14:07
-8:08
6.62M
1:23:2612:360.19 mi
-43:-41
-57:48
10.65M
2:11:0512:184.03 mi47:39
11:49
+55:30
Finish(13.11 mi)
2:41:1512:182.46 mi30:10
12:16
+0:27
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

-44:-41 /mi

Average Pace

12:18 /mi

Slowest Pace

22:15 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:41:15

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 12:18 /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. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
1.40M1.40 mi46121866774612186677
2.13M0.73 mi4808-1961968-10287-1051182152100
6.43M4.30 mi4924-1162023-5590-34972206399
6.62M0.19 mi4898+262015+890---
10.65M4.03 mi4881+172013+288+24866201594
Finish(13.11 mi)2.46 mi4914-332040-2789-150772173100

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 76%
~flat
+3ft-2ft

Overall

4612

Females

1866

F50-54

77

1.40M→2.13M

1.4 - 2.1 mi

Top 84%
~flat
+3ft-1ft

Overall

5118

Females

2152

F50-54

101

2.13M→6.43M

2.1 - 6.4 mi

Top 82%
×17story building
+274ft-78ft

Overall

4972

Females

2063

F50-54

100

6.43M→6.62M

6.4 - 6.6 mi

×1story
+16ft-0ft

Overall

-

Females

-

F50-54

-

6.62M→10.65M

6.6 - 10.7 mi

Top 80%
×21story building
+153ft-361ft

Overall

4866

Females

2015

F50-54

94

10.65M→Finish

10.7 - 13.1 mi

Top 84%
×17story building
+244ft-114ft

Overall

5077

Females

2173

F50-54

100

Passing Analysis

Category:
▼Net Change
0
0 passed by0* passed
SegmentMovementRank
Start → 1.40M-#4612
1.40M → 2.13M
298102-196
#4612 → #4808
2.13M → 6.43M
311195*-116
#4808 → #4924
6.43M → 6.62M
3965+26
#4924 → #4898
6.62M → 10.65M
116133*+17
#4898 → #4881
10.65M → Finish
8350*-33
#4881 → #4914
TOTALS
847545*-302
#4612 → #4914

* 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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Public Race Data

The San Francisco Marathon

The San Francisco Marathon

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