Jen-Jai Chou

San Jose, CA

Bib: 15701 M 32

0:00
0:00
/ mi
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Overall
#0 / 7100
Top 34%
Gender (Male)
#0 / 3977
Top 44%
Division (M30-34)
#0 / 872
Top 43%
Race Day Weather
56°/46°F
light rain

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
10 ft elev
1.81M
8:33/mi
15:29
→ flat
12 ft elev
5.34M
8:49/mi
46:38
8074
19 ft elev
6.15M
10:09/mi
54:51
1262.8%
149 ft elev
10.54M
9:50/mi
1:38:00
2303610.6%
20 ft elev
11.05M
14:38/mi
1:45:28
1726.4%
213 ft elev
Finish· 13.11 mi
11:09/mi
2:08:25
971140.2%
205 ft elev
Course Elevation
10277 ft
×22story building
774 ft climb · 557 ft descent

The Course

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Half Splits

1st Half· via 6.15MFaster
Distance6.15 mi
Time54:51
Pace8:55 /mi
2nd Half
Distance6.96 mi
Time1:13:34
Pace10:34 /mi
📊Positive Split: 34.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
1.81M
1.81 mi06:52:0715:298:3315:29
8:33
-
5.34M
5.34 mi07:23:1646:388:4431:09
8:49
+0:16
6.15M
6.15 mi07:31:2954:518:558:13
10:09
+1:20
10.54M
10.54 mi08:14:381:38:009:1843:09
9:50
-0:19
11.05M
11.05 mi08:22:061:45:289:337:28
14:38
+4:48
Finish
13.11 mi08:45:032:08:259:4822:57
11:09
-3:29

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

8:33 /mi

Average Pace

9:48 /mi

Slowest Pace

14:38 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

46:38

36% of race

Time at Steady Pace

1:14:19

58% of race

Time at Slower Pace

7:28

6% of race

Average Pace: 9:48 /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.

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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
1.81M
1.81 mi06:52:0715:298:3315:29
8:33
#1255
5.34M
5.34 mi07:23:1646:388:4431:09
8:49
#1385
6.15M
6.15 mi07:31:2954:518:558:13
10:09
#1604
10.54M
10.54 mi08:14:381:38:009:1843:09
9:50
#2054
11.05M
11.05 mi08:22:061:45:289:337:28
14:38
#2167
Finish
13.11 mi08:45:032:08:259:4822:57
11:09
#2442
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM30-34Seg. OverallSeg. MalesSeg. M30-34
1.81M1.81 mi1.81 mi125510002111255(Top 18%)1000(Top 25%)211(Top 24%)
5.34M5.34 mi3.53 mi1385-1301083-83228-171537(Top 22%)1196(Top 30%)259(Top 30%)
6.15M6.15 mi0.81 mi1604-2191241-158266-382894(Top 41%)2006(Top 50%)431(Top 49%)
10.54M10.54 mi4.39 mi2054-4501523-282327-612688(Top 38%)1885(Top 47%)413(Top 47%)
11.05M11.05 mi0.51 mi2167-1131591-68339-123668(Top 52%)2388(Top 60%)535(Top 61%)
Finish13.11 mi2.06 mi2442-2751738-147373-344009(Top 56%)2502(Top 63%)552(Top 63%)

Segment Performance Analysis

Start → 1.81M

0.0 - 1.8 mi

Top 18%
~flat
+4ft-3ft

Overall

1255

Males

1000

M30-34

211

1.81M→5.34M

1.8 - 5.3 mi

Top 22%
×4story building
+80ft-74ft

Overall

1537

Males

1196

M30-34

259

5.34M→6.15M

5.3 - 6.2 mi

Top 41%
×10story building
+126ft-4ft

Overall

2894

Males

2006

M30-34

431

6.15M→10.54M

6.2 - 10.5 mi

Top 38%
×21story building
+230ft-361ft

Overall

2688

Males

1885

M30-34

413

10.54M→11.05M

10.5 - 11.1 mi

Top 52%
×14story building
+172ft-0ft

Overall

3668

Males

2388

M30-34

535

11.05M→Finish

11.1 - 13.1 mi

Top 56%
×7story building
+97ft-114ft

Overall

4009

Males

2502

M30-34

552

Passing Analysis

Category:
Athletes Passed
122*
Passed By
1309
Net Change
-1187
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 1.81M----#1255
1.81M5.34M70200-130#1255#1385
5.34M6.15M10229-219#1385#1604
6.15M10.54M25475-450#1604#2054
10.54M11.05M5118-113#2054#2167
11.05MFinish12*287-275#2167#2442
TOTALS122*1309-1187

* 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