Lin Chai

Bib: 14268MAge: 26

San Francisco, CA

0:00
0:00
/ mi
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Overall
#0 / 5177
Top 45%
Gender (Male)
#0 / 2862
Division (M25-29)
#0 / 608
Race Day Weather
56°/46°F
overcast clouds

⏱️ Race Timeline

Course Elevation
10277 ft
×22story building
774 ft climb · 557 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2.13M
12:44/mi
27:08
→ flat
6.62M
9:38/mi
1:10:23
299780.9%
7.12M
11:54/mi
1:16:20
271.0%
10.65M
9:10/mi
1:48:42
1273601.3%
Finish· 13.11 mi
9:41/mi
2:12:30
2441141.0%

The Course

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Half Splits

1st Half· via 6.62M
Distance6.62 mi
Time1:10:23
Pace10:38 /mi
2nd Half✓ Faster
Distance6.49 mi
Time1:02:07
Pace9:34 /mi
📊Negative Split: 11.7% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2.13M
2.13 mi07:44:3427:0812:4427:08
12:44
-
6.62M
6.62 mi08:27:491:10:2310:3843:15
9:38
-3:06
7.12M
7.12 mi08:33:461:16:2010:435:57
11:54
+2:16
10.65M
10.65 mi09:06:081:48:4210:1232:22
9:10
-2:44
Finish
13.11 mi09:29:562:12:3010:0623:48
9:41
+0:31

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

9:10 /mi

Average Pace

10:06 /mi

Slowest Pace

12:44 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

1:39:25

75% of race

Time at Slower Pace

33:05

25% of race

Average Pace: 10:06 /mi

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Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi3.3mi6.6mi9.8mi13.1mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
2.13M
2.13 mi07:44:3427:0812:4427:08
12:44
#2900
6.62M
6.62 mi08:27:491:10:2310:3843:15
9:38
#2519
7.12M
7.12 mi08:33:461:16:2010:435:57
11:54
#2374
10.65M
10.65 mi09:06:081:48:4210:1232:22
9:10
#2270
Finish
13.11 mi09:29:562:12:3010:0623:48
9:41
#2332
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
2.13M2.13 mi2.13 mi290018734192900(Top 56%)1873(Top 65%)419(Top 69%)
6.62M6.62 mi4.49 mi2519+3811684+189400+192363(Top 46%)1582(Top 55%)370(Top 61%)
7.12M7.12 mi0.50 mi2374+1451606+78378+221432(Top 28%)1077(Top 38%)260(Top 43%)
10.65M10.65 mi3.53 mi2270+1041542+64358+202140(Top 41%)1448(Top 51%)334(Top 55%)
Finish13.11 mi2.46 mi2332-621556-14360-22624(Top 51%)1669(Top 58%)395(Top 65%)

Segment Performance Analysis

Start → 2.13M

0.0 - 2.1 mi

Top 56%
~flat
+6ft-3ft

Overall

2900

Males

1873

M25-29

420

2.13M→6.62M

2.1 - 6.6 mi

Top 46%
×19story building
+299ft-78ft

Overall

2363

Males

1582

M25-29

371

6.62M→7.12M

6.6 - 7.1 mi

Top 28%
×2story building
+27ft-0ft

Overall

1432

Males

1077

M25-29

261

7.12M→10.65M

7.1 - 10.7 mi

Top 41%
×21story building
+127ft-360ft

Overall

2140

Males

1448

M25-29

335

10.65M→Finish

10.7 - 13.1 mi

Top 51%
×17story building
+244ft-114ft

Overall

2624

Males

1669

M25-29

395

Passing Analysis

Category:
Athletes Passed
779*
Passed By
211
Net Change
+568
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2.13M----#2900
2.13M6.62M436*55+381#2900#2519
6.62M7.12M1494+145#2519#2374
7.12M10.65M140*36+104#2374#2270
10.65MFinish54*116-62#2270#2332
TOTALS779*211+568

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

📊

Passing Visuals

Category:
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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