Ronnie Lau

Hayward, CA

Bib: 14359 M 37

0:00
0:00
/ mi
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Overall
#0 / 7100
Top 50%
Gender (Male)
#0 / 3977
Division (M35-39)
#0 / 583
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
9:14/mi
16:43
→ flat
12 ft elev
5.34M
10:29/mi
53:43
8074
19 ft elev
6.15M
10:41/mi
1:02:22
1262.8%
149 ft elev
10.54M
10:31/mi
1:48:34
2303610.6%
20 ft elev
11.05M
14:52/mi
1:56:09
1726.4%
213 ft elev
Finish· 13.11 mi
10:41/mi
2:18:08
971140.2%
205 ft elev
Course Elevation
10277 ft
×22story building
774 ft climb · 557 ft descent

The Course

Half Splits

1st Half· via 6.15M
1:02:2210:08 /mi⚡ faster
2nd Half
1:15:4610:53 /mi+21.5%
Positive split — 21.5% 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
1.81M
16:439:141.81 mi16:43
9:14
-
5.34M
53:4310:043.53 mi37:00
10:29
+1:15
6.15M
1:02:2210:080.81 mi8:39
10:41
+0:12
10.54M
1:48:3410:184.39 mi46:12
10:31
-0:10
11.05M
1:56:0910:310.51 mi7:35
14:52
+4:21
Finish(13.11 mi)
2:18:0810:322.06 mi21:59
10:41
-4:11
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

9:14 /mi

Average Pace

10:32 /mi

Slowest Pace

14:52 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

16:43

12% of race

Time at Steady Pace

1:53:50

82% of race

Time at Slower Pace

7:35

5% of race

Average Pace: 10:32 /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. DistOverallMalesM35-39Seg. OverallSeg. MalesSeg. M35-39
1.81M1.81 mi2366172024923661720249
5.34M3.53 mi3639-12732425-705362-11342212722405
6.15M0.81 mi3624+152414+11355+736822438342
10.54M4.39 mi3590+342384+30357-236312393358
11.05M0.51 mi3595-52387-3361-438292465359
Finish(13.11 mi)2.06 mi3524+712335+52352+934032200319

Segment Performance Analysis

Start → 1.81M

0.0 - 1.8 mi

Top 33%
~flat
+4ft-3ft

Overall

2366

Males

1720

M35-39

249

1.81M→5.34M

1.8 - 5.3 mi

Top 59%
×4story building
+80ft-74ft

Overall

4221

Males

2722

M35-39

405

5.34M→6.15M

5.3 - 6.2 mi

Top 52%
×10story building
+126ft-4ft

Overall

3682

Males

2438

M35-39

342

6.15M→10.54M

6.2 - 10.5 mi

Top 51%
×21story building
+230ft-361ft

Overall

3631

Males

2393

M35-39

358

10.54M→11.05M

10.5 - 11.1 mi

Top 54%
×14story building
+172ft-0ft

Overall

3829

Males

2465

M35-39

359

11.05M→Finish

11.1 - 13.1 mi

Top 48%
×7story building
+97ft-114ft

Overall

3403

Males

2200

M35-39

319

Passing Analysis

Category:
Net Change
0
0 passed by0* passed
SegmentMovementRank
Start → 1.81M-#2366
1.81M5.34M
129320*-1273
#2366 #3639
5.34M6.15M
5974+15
#3639 #3624
6.15M10.54M
152186*+34
#3624 #3590
10.54M11.05M
4540-5
#3590 #3595
11.05MFinish
50121*+71
#3595 #3524
TOTALS
1599441*-1158
#2366 #3524

* 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

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