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SF MARATHON 1ST HALF 2023

Barry Chen

San Jose, CA

Bib: 16578 M 29

0:00
0:00
/ mi
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Overall
#0 / 6072
Top 20%
Gender (Male)
#0 / 3331
Top 27%
Division (M25-29)
#0 / 688
Top 31%
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
8:44/mi
12:14
→ flat
2.13M
16:40/mi
24:24
→ flat
6.43M
10:09/mi
1:08:04
↑ 274↓ 78
6.62M
-30:-6/mi
1:02:32
↑ 16
10.65M
8:34/mi
1:37:04
↑ 153↓ 361
Finish· 13.11 mi
8:41/mi
1:58:25
↑ 244↓ 114
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6.62M
1:02:329:27 /mi+10.6%
2nd Half
55:538:37 /mi✓ faster
Negative split — 10.6% 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
12:148:441.40 mi12:14
8:44
-
2.13M
24:2411:270.73 mi12:10
16:40
+7:56
6.43M
1:08:0410:354.30 mi43:40
10:09
-6:31
6.62M
1:02:329:270.19 mi
-30:-6
-40:15
10.65M
1:37:049:074.03 mi34:32
8:34
+38:40
Finish(13.11 mi)
1:58:259:022.46 mi21:21
8:41
+0:07
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

-31:-6 /mi

Average Pace

9:02 /mi

Slowest Pace

16:40 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

1:58:25

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:02 /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. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
1.40M1.40 mi1931132831719311328317
2.13M0.73 mi1439+4921016+312253+641184853206
6.43M4.30 mi1114+325835+181197+561036775179
6.62M0.19 mi1153-39851-16203-6---
10.65M4.03 mi1128+25850+1201+21126840205
Finish(13.11 mi)2.46 mi1213-85905-55214-1317531219282

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 32%
~flat
+3ft-2ft

Overall

1931

Males

1328

M25-29

319

1.40M→2.13M

1.4 - 2.1 mi

Top 19%
~flat
+3ft-1ft

Overall

1184

Males

853

M25-29

211

2.13M→6.43M

2.1 - 6.4 mi

Top 17%
×17story building
+274ft-78ft

Overall

1036

Males

775

M25-29

181

6.43M→6.62M

6.4 - 6.6 mi

×1story
+16ft-0ft

Overall

-

Males

-

M25-29

-

6.62M→10.65M

6.6 - 10.7 mi

Top 19%
×21story building
+153ft-361ft

Overall

1126

Males

840

M25-29

206

10.65M→Finish

10.7 - 13.1 mi

Top 29%
×17story building
+244ft-114ft

Overall

1753

Males

1219

M25-29

282

Passing Analysis

Category:
▲Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 1.40M-#1931
1.40M → 2.13M
20512+492
#1931 → #1439
2.13M → 6.43M
23348*+325
#1439 → #1114
6.43M → 6.62M
5718-39
#1114 → #1153
6.62M → 10.65M
6893*+25
#1153 → #1128
10.65M → Finish
11227*-85
#1128 → #1213
TOTALS
280998*+718
#1931 → #1213

* 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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