Samson Zheng

Bib: 37466MAge: 33

San francisco, CA

0:00
0:00
/ mi
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Overall
#0 / 3682
Top 38%
Gender (Male)
#0 / 1683
Division (M30-34)
#0 / 400
Top 48%
Race Day Weather
60°/50°F
scattered clouds

Timing Data Quality

85.3%Needs Review
78.0% Complete~22.0% Missed/Estimated

Across 1 intermediate timing checkpoint

Passing stats, segment rankings, and position data on this page use estimated times and may not reflect actual race positions.

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
30:22
Rank: #1097
Start5K
30:22 | 9:46/mi
Finish· 6.21 mi
1:06:15
Rank: #1408 (-311)
5KFinish
35:53 | 11:33/mi

The Course

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Half Splits

1st Half· via 5KFaster
Distance3.11 mi
Time30:22
Pace9:46 /mi
2nd Half
Distance3.11 mi
Time35:53
Pace11:33 /mi
📊Positive Split: 18.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi07:58:2630:229:4630:22
9:46
-
Finish
6.21 mi08:34:191:06:1510:4035:53
11:33
+1:47

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

9:46 /mi

Average Pace

10:40 /mi

Slowest Pace

11:33 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

30:22

46% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

35:53

54% of race

Average Pace: 10:40 /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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0mi1.6mi3.1mi4.7mi6.2mi
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
5K
3.11 mi07:58:2630:229:4630:22
9:46
#1097
Finish
6.21 mi08:34:191:06:1510:4035:53
11:33
#1408
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM30-34Seg. OverallSeg. MalesSeg. M30-34
5K3.11 mi3.11 mi10977041581097(Top 30%)704(Top 42%)158(Top 40%)
Finish6.21 mi3.10 mi1408-311865-161190-321796(Top 49%)1024(Top 61%)238(Top 60%)

Segment Performance Analysis

Start → 5K

0.0 - 3.1 mi

Top 30%
×1human
+27ft-30ft

Overall

1097

Males

704

M30-34

158

5K→Finish

3.1 - 6.2 mi

Top 49%
×2humans
+33ft-33ft

Overall

1796

Males

1024

M30-34

238

Passing Analysis

Category:
Athletes Passed
25*
Passed By
336
Net Change
-311
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1097
5KFinish25*336-311#1097#1408
TOTALS25*336-311

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

📊

Passing Visuals

Category:
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🔥Passing Intensity

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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