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SF MARATHON 1ST HALF 2023

Xiaochen Li

San Jose, CA

Bib: 11385 F 39

0:00
0:00
/ mi
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Overall
#0 / 6072
Top 41%
Gender (Female)
#0 / 2732
Top 31%
Division (F35-39)
#0 / 359
Top 26%
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
8:49/mi
12:20
→ flat
11 ft elev
2.13M
18:49/mi
26:04
→ flat
13 ft elev
6.43M
11:18/mi
1:14:41
↑ 274↓ 780.9%
213 ft elev
6.62M
-42:-59/mi
1:06:42
↑ 161.6%
239 ft elev
10.65M
9:56/mi
1:46:45
↑ 153↓ 3611.0%
48 ft elev
Finish· 13.11 mi
10:11/mi
2:11:48
↑ 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
1:06:4210:05 /mi+2.4%
2nd Half
1:05:0610:02 /mi✓ faster
Negative split — 2.4% faster in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
1.40M
1.40 mi06:51:3412:208:4912:20
8:49
-
2.13M
2.13 mi07:05:1826:0412:1413:44
18:49
+10:00
6.43M
6.43 mi07:53:551:14:4111:3748:37
11:18
-7:31
6.62M
6.62 mi07:45:561:06:4210:05
-42:-59
-54:17
10.65M
10.65 mi08:25:591:46:4510:0140:03
9:56
+52:55
Finish
13.11 mi08:51:022:11:4810:0325:03
10:11
+0:15

Checkpoints & Pacing

Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

-43:-59 /mi

Average Pace

10:03 /mi

Slowest Pace

18:49 /mi

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Fastest
Middle
Slowest
Average

Segments

Segment Time Comparison

Time at Faster Pace

2:11:48

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:03 /mi

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

Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

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

Click or hover over segments to see details

Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
1.40M
1.40 mi06:51:3412:208:4912:20
8:49
#2059
2.13M
2.13 mi07:05:1826:0412:1413:44
18:49
#2371
6.43M
6.43 mi07:53:551:14:4111:3748:37
11:18
#2266
6.62M
6.62 mi07:45:561:06:4210:05
-42:-59
#1951
10.65M
10.65 mi08:25:591:46:4510:0140:03
9:56
#2254
Finish
13.11 mi08:51:022:11:4810:0325:03
10:11
#2515
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF35-39Seg. OverallSeg. FemalesSeg. F35-39
1.40M1.40 mi1.40 mi205965278205965278
2.13M2.13 mi0.73 mi2371-312770-11888-102812976122
6.43M6.43 mi4.30 mi2266+105718+5281+7230775183
6.62M6.62 mi0.19 mi1951+315610+10868+13---
10.65M10.65 mi4.03 mi2254-303727-11783-1528731011116
Finish13.11 mi2.46 mi2515-261847-12094-1135611368166

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 34%
~flat
+3ft-2ft

Overall

2059

Females

652

F35-39

78

1.40M→2.13M

1.4 - 2.1 mi

Top 46%
~flat
+3ft-1ft

Overall

2812

Females

976

F35-39

123

2.13M→6.43M

2.1 - 6.4 mi

Top 38%
×17story building
+274ft-78ft

Overall

2307

Females

751

F35-39

83

6.43M→6.62M

6.4 - 6.6 mi

×1story
+16ft-0ft

Overall

-

Females

-

F35-39

-

6.62M→10.65M

6.6 - 10.7 mi

Top 47%
×21story building
+153ft-361ft

Overall

2873

Females

1011

F35-39

116

10.65M→Finish

10.7 - 13.1 mi

Top 59%
×17story building
+244ft-114ft

Overall

3561

Females

1368

F35-39

166

Passing Analysis

Category:
Athletes Passed
710*
Passed By
1166
Net Change
-456
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 1.40M----#2059
1.40M → 2.13M61373-312#2059#2371
2.13M → 6.43M267*162+105#2371#2266
6.43M → 6.62M3194+315#2266#1951
6.62M → 10.65M41*344-303#1951#2254
10.65M → Finish22*283-261#2254#2515
TOTALS710*1166-456

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

Passing Charts

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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