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SF MARATHON 1ST HALF 2023

Justin Phu

San Francisco, CA

Bib: 16450 M 26

0:00
0:00
/ mi
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Overall
#0 / 6072
Gender (Male)
#0 / 3331
Division (M25-29)
#0 / 688
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
10:28/mi
14:39
→ flat
2.13M
20:50/mi
29:52
→ flat
6.43M
12:03/mi
1:21:42
↑ 274↓ 78
6.62M
-37:-44/mi
1:14:43
↑ 16
10.65M
9:43/mi
1:53:54
↑ 153↓ 361
Finish· 13.11 mi
9:26/mi
2:17:06
↑ 244↓ 114
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6.62M
1:14:4311:17 /mi+16.5%
2nd Half
1:02:239:37 /mi✓ faster
Negative split — 16.5% 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
14:3910:281.40 mi14:39
10:28
-
2.13M
29:5214:010.73 mi15:13
20:50
+10:22
6.43M
1:21:4212:424.30 mi51:50
12:03
-8:47
6.62M
1:14:4311:170.19 mi
-37:-44
-49:47
10.65M
1:53:5410:424.03 mi39:11
9:43
+47:27
Finish(13.11 mi)
2:17:0610:282.46 mi23:12
9:26
-0:17
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

-38:-44 /mi

Average Pace

10:28 /mi

Slowest Pace

20:50 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:17:06

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:27 /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 mi4639275659546392756595
2.13M0.73 mi4430+2092672+84578+1743562614573
6.43M4.30 mi3520+9102211+461499+7931932035460
6.62M0.19 mi3561-412224-13505-6---
10.65M4.03 mi3200+3612050+174467+3826081718401
Finish(13.11 mi)2.46 mi3068+1321971+79456+1126301686394

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 76%
~flat
+3ft-2ft

Overall

4639

Males

2756

M25-29

598

1.40M→2.13M

1.4 - 2.1 mi

Top 72%
~flat
+3ft-1ft

Overall

4356

Males

2614

M25-29

579

2.13M→6.43M

2.1 - 6.4 mi

Top 53%
×17story building
+274ft-78ft

Overall

3193

Males

2035

M25-29

462

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 43%
×21story building
+153ft-361ft

Overall

2608

Males

1718

M25-29

402

10.65M→Finish

10.7 - 13.1 mi

Top 43%
×17story building
+244ft-114ft

Overall

2630

Males

1686

M25-29

394

Passing Analysis

Category:
▲Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 1.40M-#4639
1.40M → 2.13M
93302+209
#4639 → #4430
2.13M → 6.43M
68978*+910
#4430 → #3520
6.43M → 6.62M
8847-41
#3520 → #3561
6.62M → 10.65M
30391*+361
#3561 → #3200
10.65M → Finish
32164*+132
#3200 → #3068
TOTALS
3111882*+1571
#4639 → #3068

* 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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The San Francisco Marathon

The San Francisco Marathon

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