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SF MARATHON 1ST HALF 2023

Xavier Ong

San Francisco, CA

Bib: 13929 M 23

0:00
0:00
/ mi
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Overall
#0 / 6072
Gender (Male)
#0 / 3331
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
1.40M
13:59/mi
19:34
→ flat
2.13M
20:07/mi
34:15
→ flat
6.43M
13:27/mi
1:32:06
↑ 274↓ 78
6.62M
-47:-1/mi
1:23:21
↑ 16
10.65M
12:38/mi
2:14:14
↑ 153↓ 361
Finish· 13.11 mi
13:17/mi
2:46:53
↑ 244↓ 114
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6.62M
1:23:2112:35 /mi⚖️ balanced
2nd Half
1:23:3212:52 /mi⚖️ balanced
Even split — consistent pacing between halves
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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
1.40M
19:3413:591.40 mi19:34
13:59
-
2.13M
34:1516:050.73 mi14:41
20:07
+6:08
6.43M
1:32:0614:194.30 mi57:51
13:27
-6:40
6.62M
1:23:2112:350.19 mi
-47:-1
-60:28
10.65M
2:14:1412:364.03 mi50:53
12:38
+59:39
Finish(13.11 mi)
2:46:5312:442.46 mi32:39
13:17
+0:39
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

-48:-1 /mi

Average Pace

12:44 /mi

Slowest Pace

20:07 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:46:53

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 12:44 /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. DistOverallMalesM20-29Seg. OverallSeg. MalesSeg. M20-29
1.40M1.40 mi5796323432857963234328
2.13M0.73 mi5562+2343156+78323+538752380273
6.43M4.30 mi4976+5862911+245310+1344772695292
6.62M0.19 mi4893+832875+36309+1---
10.65M4.03 mi5077-1842941-66305+453173007305
Finish(13.11 mi)2.46 mi5197-1202978-37304+155093093310

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 95%
~flat
+3ft-2ft

Overall

5796

Males

3234

M20-24

329

1.40M→2.13M

1.4 - 2.1 mi

Top 64%
~flat
+3ft-1ft

Overall

3875

Males

2380

M20-24

273

2.13M→6.43M

2.1 - 6.4 mi

Top 74%
×17story building
+274ft-78ft

Overall

4477

Males

2695

M20-24

292

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 88%
×21story building
+153ft-361ft

Overall

5317

Males

3007

M20-24

305

10.65M→Finish

10.7 - 13.1 mi

Top 91%
×17story building
+244ft-114ft

Overall

5509

Males

3093

M20-24

310

Passing Analysis

Category:
▲Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 1.40M-#5796
1.40M → 2.13M
48282*+234
#5796 → #5562
2.13M → 6.43M
63649*+586
#5562 → #4976
6.43M → 6.62M
17100+83
#4976 → #4893
6.62M → 10.65M
22743*-184
#4893 → #5077
10.65M → Finish
14424*-120
#5077 → #5197
TOTALS
4991098*+599
#5796 → #5197

* 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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