Xiaoxiang Ren

Burlingame, CA

Bib: 12846 M 36

0:00
0:00
/ mi
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Overall
#0 / 5177
Top 41%
Gender (Male)
#0 / 2862
Division (M35-39)
#0 / 418
Top 49%
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
12:44/mi
27:08
→ flat
6.62M
9:09/mi
1:08:14
29978
7.12M
13:14/mi
1:14:51
27
10.65M
9:18/mi
1:47:41
127360
Finish· 13.11 mi
9:13/mi
2:10:21
244114
Course Elevation
10277 ft
×22story building
774 ft climb · 557 ft descent

The Course

Half Splits

1st Half· via 6.62M
1:08:1410:18 /mi+9.0%
2nd Half
1:02:079:34 /mi✓ faster
Negative split — 9.0% 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
27:0812:442.13 mi27:08
12:44
-
6.62M
1:08:1410:184.49 mi41:06
9:09
-3:35
7.12M
1:14:5110:310.50 mi6:37
13:14
+4:05
10.65M
1:47:4110:073.53 mi32:50
9:18
-3:56
Finish(13.11 mi)
2:10:219:572.46 mi22:40
9:13
-0:05
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

9:09 /mi

Average Pace

9:57 /mi

Slowest Pace

13:14 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

1:36:36

74% of race

Time at Slower Pace

33:45

26% of race

Average Pace: 9:57 /mi

Loading chart...
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. DistOverallMalesM35-39Seg. OverallSeg. MalesSeg. M35-39
2.13M2.13 mi2897187126928971871269
6.62M4.49 mi2142+7551485+386211+5817661264183
7.12M0.50 mi2129+131478+7209+223031576227
10.65M3.53 mi2161-321487-9210-122781518215
Finish(13.11 mi)2.46 mi2124+371452+35206+421691435215

Segment Performance Analysis

Start → 2.13M

0.0 - 2.1 mi

Top 56%
~flat
+6ft-3ft

Overall

2897

Males

1871

M35-39

272

2.13M→6.62M

2.1 - 6.6 mi

Top 34%
×19story building
+299ft-78ft

Overall

1766

Males

1264

M35-39

184

6.62M→7.12M

6.6 - 7.1 mi

Top 44%
×2story building
+27ft-0ft

Overall

2303

Males

1576

M35-39

228

7.12M→10.65M

7.1 - 10.7 mi

Top 44%
×21story building
+127ft-360ft

Overall

2278

Males

1518

M35-39

216

10.65M→Finish

10.7 - 13.1 mi

Top 42%
×17story building
+244ft-114ft

Overall

2169

Males

1435

M35-39

215

Passing Analysis

Category:
Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 2.13M-#2897
2.13M6.62M
13768*+755
#2897 #2142
6.62M7.12M
3952+13
#2142 #2129
7.12M10.65M
10674*-32
#2129 #2161
10.65MFinish
4683*+37
#2161 #2124
TOTALS
204977*+773
#2897 #2124

* 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