Meng Dong

Sunnyvale, CA

Bib: 25687 F 31

0:00
0:00
/ mi
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Overall
#0 / 3840
Gender (Female)
#0 / 1760
Division (F30-34)
#0 / 408
Race Day Weather
59°/49°F
scattered clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
48 ft elev
2M
11:02/mi
22:04
138680.7%
122 ft elev
4M
11:34/mi
45:12
1631.4%
280 ft elev
6M
14:09/mi
1:13:30
55830.3%
247 ft elev
8M
8:31/mi
1:30:33
651510.8%
143 ft elev
10M
12:01/mi
1:54:34
611741.1%
25 ft elev
12M
12:35/mi
2:19:44
41530.1%
12 ft elev
Finish· 13.11 mi
12:08/mi
2:33:11
→ flat
11 ft elev
Course Elevation
9292 ft
×24story building
548 ft climb · 587 ft descent

The Course

Half Splits

1st Half· via 6M
1:13:3012:15 /mi⚡ faster
2nd Half
1:19:4111:13 /mi+8.4%
Positive split — 8.4% slower in the second half
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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
2M
22:0411:022.00 mi22:04
11:02
-
4M
45:1211:182.00 mi23:08
11:34
+0:32
6M
1:13:3012:152.00 mi28:18
14:09
+2:35
8M
1:30:3311:192.00 mi17:03
8:31
-5:38
10M
1:54:3411:272.00 mi24:01
12:01
+3:30
12M
2:19:4411:392.00 mi25:10
12:35
+0:34
Finish(13.11 mi)
2:33:1111:411.11 mi13:27
12:08
-0:27
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

8:31 /mi

Average Pace

11:41 /mi

Slowest Pace

14:09 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

39:07

26% of race

Time at Steady Pace

1:25:46

56% of race

Time at Slower Pace

28:18

18% of race

Average Pace: 11:41 /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. DistOverallFemalesF30-34Seg. OverallSeg. FemalesSeg. F30-34
2M2.00 mi2857116028627241128284
4M2.00 mi2996-1391248-88305-1931271328325
6M2.00 mi3008-121250-2308-329941236303
8M2.00 mi2936+721210+40303+526811068269
10M2.00 mi2906+301194+16301+227831129286
12M2.00 mi2879+271186+830127241128284
Finish(13.11 mi)1.11 mi2859+201179+7300+127401143296

Segment Performance Analysis

10M→12M

0.0 - 2.0 mi

Top 71%
×9story building
+138ft-68ft

Overall

2724

Females

1128

F30-34

284

2M→4M

2.0 - 4.0 mi

Top 81%
×13story building
+163ft-19ft

Overall

3127

Females

1328

F30-34

326

4M→6M

4.0 - 6.0 mi

Top 78%
×4story building
+55ft-83ft

Overall

2994

Females

1236

F30-34

303

6M→8M

6.0 - 8.0 mi

Top 70%
×10story building
+65ft-151ft

Overall

2681

Females

1068

F30-34

269

8M→10M

8.0 - 10.0 mi

Top 72%
×10story building
+61ft-174ft

Overall

2783

Females

1129

F30-34

286

10M→12M

10.0 - 12.0 mi

Top 71%
×3story building
+41ft-53ft

Overall

2724

Females

1128

F30-34

284

12M→Finish

12.0 - 13.1 mi

Top 71%
×1human
+6ft-6ft

Overall

2740

Females

1143

F30-34

296

Passing Analysis

Category:
Net Change
0
0 passed by0* passed
SegmentMovementRank
Start → 2M-#2857
2M4M
19960-139
#2857 #2996
4M6M
6250-12
#2996 #3008
6M8M
375*+72
#3008 #2936
8M10M
2050*+30
#2936 #2906
10M12M
2350+27
#2906 #2879
12MFinish
1737*+20
#2879 #2859
TOTALS
324322*-2
#2857 #2859

* 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