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SF MARATHON 1ST HALF 2023

Xingyu Li

San Francisco, CA

Bib: 16658 M 21

0:00
0:00
/ mi
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Overall
#0 / 6072
Top 25%
Gender (Male)
#0 / 3331
Top 33%
M20-29
#0 / 333
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
8:34/mi
12:00
→ flat
11 ft elev
2.13M
17:20/mi
24:39
→ flat
13 ft elev
6.43M
10:45/mi
1:10:51
↑ 274↓ 780.9%
213 ft elev
6.62M
-34:-13/mi
1:04:32
↑ 161.6%
239 ft elev
10.65M
9:02/mi
1:40:57
↑ 153↓ 3611.0%
48 ft elev
Finish· 13.11 mi
8:38/mi
2:02:10
↑ 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
1:04:329:45 /mi+10.7%
2nd Half
57:388:53 /mi✓ faster
Negative split — 10.7% 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
12:008:341.40 mi12:00
8:34
-
2.13M
24:3911:340.73 mi12:39
17:20
+8:46
6.43M
1:10:5111:014.30 mi46:12
10:45
-6:35
6.62M
1:04:329:450.19 mi
-34:-13
-44:58
10.65M
1:40:579:294.03 mi36:25
9:02
+43:15
Finish(13.11 mi)
2:02:109:192.46 mi21:13
8:38
-0:24
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

-35:-13 /mi

Average Pace

9:19 /mi

Slowest Pace

17:20 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:02:10

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:19 /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. DistOverallMalesM20-29Seg. OverallSeg. MalesSeg. M20-29
1.40M1.40 mi1666116016816661160168
2.13M0.73 mi1561+1051091+69161+716011106157
6.43M4.30 mi1567-61121-30171-1016571176172
6.62M0.19 mi1512+551078+43161+10---
10.65M4.03 mi1539-271108-30167-616811204172
Finish(13.11 mi)2.46 mi1530+91104+4168-116861179169

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 27%
~flat
+3ft-2ft

Overall

1666

Males

1160

M20-24

168

1.40M→2.13M

1.4 - 2.1 mi

Top 26%
~flat
+3ft-1ft

Overall

1601

Males

1106

M20-24

157

2.13M→6.43M

2.1 - 6.4 mi

Top 27%
×17story building
+274ft-78ft

Overall

1657

Males

1176

M20-24

172

6.43M→6.62M

6.4 - 6.6 mi

×1story
+16ft-0ft

Overall

-

Males

-

M20-24

-

6.62M→10.65M

6.6 - 10.7 mi

Top 28%
×21story building
+153ft-361ft

Overall

1681

Males

1204

M20-24

172

10.65M→Finish

10.7 - 13.1 mi

Top 28%
×17story building
+244ft-114ft

Overall

1686

Males

1179

M20-24

169

Passing Analysis

Category:
▲Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 1.40M-#1666
1.40M → 2.13M
72177+105
#1666 → #1561
2.13M → 6.43M
165159*-6
#1561 → #1567
6.43M → 6.62M
2479+55
#1567 → #1512
6.62M → 10.65M
10780*-27
#1512 → #1539
10.65M → Finish
6170*+9
#1539 → #1530
TOTALS
429565*+136
#1666 → #1530

* 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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