Jason Kao

South San Francisco, CA

Bib: 12587 M 31

0:00
0:00
/ mi
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Overall
#0 / 5177
Top 32%
Gender (Male)
#0 / 2862
Top 43%
Division (M30-34)
#0 / 642
Top 47%
Race Day Weather
56°/46°F
overcast clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2.13M
12:04/mi
25:42
→ flat
6.62M
8:45/mi
1:05:01
29978
7.12M
11:32/mi
1:10:47
27
10.65M
8:53/mi
1:42:08
127360
Finish· 13.11 mi
9:16/mi
2:04:56
244114
Course Elevation
10277 ft
×22story building
774 ft climb · 557 ft descent

The Course

Half Splits

1st Half· via 6.62M
1:05:019:49 /mi+7.8%
2nd Half
59:559:14 /mi✓ faster
Negative split — 7.8% 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
2.13M
25:4212:042.13 mi25:42
12:04
-
6.62M
1:05:019:494.49 mi39:19
8:45
-3:19
7.12M
1:10:479:560.50 mi5:46
11:32
+2:47
10.65M
1:42:089:353.53 mi31:21
8:53
-2:39
Finish(13.11 mi)
2:04:569:322.46 mi22:48
9:16
+0:23
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

8:45 /mi

Average Pace

9:32 /mi

Slowest Pace

12:04 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

1:33:28

75% of race

Time at Slower Pace

31:28

25% of race

Average Pace: 9:32 /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. DistOverallMalesM30-34Seg. OverallSeg. MalesSeg. M30-34
2.13M2.13 mi2103146633821031466338
6.62M4.49 mi1570+5331141+325272+661309980240
7.12M0.50 mi1498+721106+352721188921230
10.65M3.53 mi1584-861158-52279-717861261306
Finish(13.11 mi)2.46 mi1683-991223-65300-2122221464349

Segment Performance Analysis

Start → 2.13M

0.0 - 2.1 mi

Top 41%
~flat
+6ft-3ft

Overall

2103

Males

1466

M30-34

338

2.13M→6.62M

2.1 - 6.6 mi

Top 25%
×19story building
+299ft-78ft

Overall

1309

Males

980

M30-34

240

6.62M→7.12M

6.6 - 7.1 mi

Top 23%
×2story building
+27ft-0ft

Overall

1188

Males

921

M30-34

230

7.12M→10.65M

7.1 - 10.7 mi

Top 34%
×21story building
+127ft-360ft

Overall

1786

Males

1261

M30-34

306

10.65M→Finish

10.7 - 13.1 mi

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

Overall

2222

Males

1464

M30-34

349

Passing Analysis

Category:
Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 2.13M-#2103
2.13M6.62M
10543*+533
#2103 #1570
6.62M7.12M
1587+72
#1570 #1498
7.12M10.65M
12640*-86
#1498 #1584
10.65MFinish
12526*-99
#1584 #1683
TOTALS
276696*+420
#2103 #1683

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

Passing Visualized

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Passing Circle

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Position Flow

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Race Lanes

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Official Timing Data

The San Francisco Marathon

The San Francisco Marathon

Race Place Events

Race Place Events