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BOSTON MARATHON 2023

Guoliang Wan

Bib: 31746•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M40-44)
#0 / 2241
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:53
Rank: #16352
Start → 5K
25:53 | 8:20/mi
10K· 6.21 mi
51:43
Rank: #16667 (-315)
5K → 10K
25:50 | 8:19/mi
15K· 9.32 mi
1:18:48
Rank: #17541 (-874)
10K → 15K
27:05 | 8:43/mi
20K· 12.43 mi
1:47:23
Rank: #18465 (-924)
15K → 20K
28:35 | 9:12/mi
Half· 13.11 mi
1:53:33
Rank: #18586 (-121)
20K → Half
6:10 | 9:02/mi
25K· 15.53 mi
2:18:19
Rank: #19641 (-1055)
Half → 25K
24:46 | 10:13/mi
30K· 18.64 mi
2:51:48
Rank: #20511 (-870)
25K → 30K
33:29 | 10:47/mi
20M
3:08:05
Rank: #20974 (-463)
30K → 20M
16:17 | 11:59/mi
21M
3:20:04
Rank: #21122 (-148)
20M → 21M
11:59 | 11:59/mi
35K· 21.75 mi
3:27:08
Rank: #21056 (+66)
21M → 35K
7:04 | 9:27/mi
23M
3:42:04
Rank: #21309 (-253)
35K → 23M
14:56 | 11:56/mi
24M
3:52:53
Rank: #21384 (-75)
23M → 24M
10:49 | 10:49/mi
40K· 24.85 mi
4:01:48
Rank: #21375 (+9)
24M → 40K
8:55 | 10:26/mi
25.2M
4:06:06
Rank: #21424 (-49)
40K → 25.2M
4:18 | 12:28/mi
Finish· 26.22 mi
4:17:09
Rank: #21536 (-112)
25.2M → Finish
11:03 | 10:51/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:33
Pace8:40 /mi
2nd Half
Distance13.11 mi
Time2:23:36
Pace10:57 /mi
📊Positive Split: 26.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:41:5425:538:2025:53
8:20
-
10K
6.21 mi12:07:4451:438:1925:50
8:19
-0:01
15K
9.32 mi12:34:491:18:488:2727:05
8:43
+0:24
20K
12.43 mi13:03:241:47:238:3828:35
9:12
+0:29
Half
13.11 mi13:09:341:53:338:406:10
9:02
-0:10
25K
15.53 mi13:34:202:18:198:5424:46
10:13
+1:11
30K
18.64 mi14:07:492:51:489:1333:29
10:47
+0:34
20M
20.00 mi14:24:063:08:059:2416:17
11:59
+1:12
21M
21.00 mi14:36:053:20:049:3211:59
11:59
0:00
35K
21.75 mi14:43:093:27:089:317:04
9:27
-2:32
23M
23.00 mi14:58:053:42:049:3914:56
11:56
+2:29
24M
24.00 mi15:08:543:52:539:4210:49
10:49
-1:07
40K
24.85 mi15:17:494:01:489:448:55
10:26
-0:23
25.2M
25.20 mi15:22:074:06:069:464:18
12:28
+2:02
Finish
26.22 mi15:33:104:17:099:4911:03
10:51
-1:37

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

8:19 /mi

Average Pace

9:49 /mi

Slowest Pace

12:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:00:37

47% of race

Time at Steady Pace

1:29:02

35% of race

Time at Slower Pace

47:30

18% of race

Average Pace: 9:48 /mi

Loading chart...
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.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
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 mi11:41:5425:538:2025:53
8:20
#16352
10K
6.21 mi12:07:4451:438:1925:50
8:19
#16667
15K
9.32 mi12:34:491:18:488:2727:05
8:43
#17541
20K
12.43 mi13:03:241:47:238:3828:35
9:12
#18465
Half
13.11 mi13:09:341:53:338:406:10
9:02
#18586
25K
15.53 mi13:34:202:18:198:5424:46
10:13
#19641
30K
18.64 mi14:07:492:51:489:1333:29
10:47
#20511
20M
20.00 mi14:24:063:08:059:2416:17
11:59
#20974
21M
21.00 mi14:36:053:20:049:3211:59
11:59
#21122
35K
21.75 mi14:43:093:27:089:317:04
9:27
#21056
23M
23.00 mi14:58:053:42:049:3914:56
11:56
#21309
24M
24.00 mi15:08:543:52:539:4210:49
10:49
#21384
40K
24.85 mi15:17:494:01:489:448:55
10:26
#21375
25.2M
25.20 mi15:22:074:06:069:464:18
12:28
#21424
Finish
26.22 mi15:33:104:17:099:4911:03
10:51
#21536
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi16352108341083419075(Top 72%)11908(Top 78%)11908(Top 531%)
10K6.21 mi3.10 mi16667-31510964-13010964-13017031(Top 64%)11124(Top 73%)11124(Top 496%)
15K9.32 mi3.11 mi17541-87411285-32111285-32119075(Top 72%)11908(Top 78%)11908(Top 531%)
20K12.43 mi3.11 mi18465-92411664-37911664-37920570(Top 77%)12559(Top 83%)12559(Top 560%)
Half13.11 mi0.68 mi18586-12111709-4511709-4520584(Top 77%)12556(Top 83%)12556(Top 560%)
25K15.53 mi2.42 mi19641-105512112-40312112-40322641(Top 85%)13428(Top 88%)13428(Top 599%)
30K18.64 mi3.11 mi20511-87012477-36512477-36522740(Top 85%)13398(Top 88%)13398(Top 598%)
20M20.00 mi1.36 mi20974-46312671-19412671-19424202(Top 91%)13994(Top 92%)13994(Top 624%)
21M21.00 mi1.00 mi21122-14812716-4512716-4522717(Top 85%)13294(Top 88%)13294(Top 593%)
35K21.75 mi0.75 mi21056+6612676+4012676+4019694(Top 74%)11924(Top 79%)11924(Top 532%)
23M23.00 mi1.25 mi21309-25312786-11012786-11023884(Top 90%)13804(Top 91%)13804(Top 616%)
24M24.00 mi1.00 mi21384-7512814-2812814-2822681(Top 85%)13197(Top 87%)13197(Top 589%)
40K24.85 mi0.85 mi21375+912797+1712797+1721035(Top 79%)12387(Top 82%)12387(Top 553%)
25.2M25.20 mi0.35 mi21424-4912815-1812815-1823210(Top 87%)13410(Top 88%)13410(Top 598%)
Finish26.22 mi1.02 mi21536-11212858-4312858-4323678(Top 89%)13656(Top 90%)13656(Top 609%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21stories
+97ft-345ft

Overall

19075

Males

11908

M40-44

11908

5K→10K

3.1 - 6.2 mi

Top 64%
×5stories
+79ft-138ft

Overall

17031

Males

11124

M40-44

11124

10K→15K

6.2 - 9.3 mi

Top 72%
×3stories
+67ft-78ft

Overall

19075

Males

11908

M40-44

11908

15K→20K

9.3 - 12.4 mi

Top 77%
×5stories
+106ft-86ft

Overall

20570

Males

12559

M40-44

12559

20K→Half

12.4 - 13.1 mi

Top 77%
×2stories
+19ft-37ft

Overall

20584

Males

12556

M40-44

12556

Half→25K

13.1 - 15.5 mi

Top 85%
×4stories
+66ft-88ft

Overall

22641

Males

13428

M40-44

13428

25K→30K

15.5 - 18.6 mi

Top 85%
×9stories
+181ft-148ft

Overall

22740

Males

13398

M40-44

13398

30K→20M

18.6 - 20.0 mi

Top 91%
×5stories
+64ft-50ft

Overall

24202

Males

13994

M40-44

13994

20M→21M

20.0 - 21.0 mi

Top 85%
×8stories
+106ft-24ft

Overall

22717

Males

13294

M40-44

13294

21M→35K

21.0 - 21.8 mi

Top 74%
×7stories
+17ft-86ft

Overall

19694

Males

11924

M40-44

11924

35K→23M

21.8 - 23.0 mi

Top 90%
×5stories
+23ft-63ft

Overall

23884

Males

13804

M40-44

13804

23M→24M

23.0 - 24.0 mi

Top 85%
×6stories
+12ft-82ft

Overall

22681

Males

13197

M40-44

13197

24M→40K

24.0 - 24.9 mi

Top 79%
×1story
+6ft-20ft

Overall

21035

Males

12387

M40-44

12387

40K→25.2M

24.9 - 25.2 mi

Top 87%
×1story
+13ft-16ft

Overall

23210

Males

13410

M40-44

13410

25.2M→Finish

25.2 - 26.2 mi

Top 89%
×2stories
+22ft-21ft

Overall

23678

Males

13656

M40-44

13656

Passing Analysis

Category:
Athletes Passed
501
Passed By
5685
Net Change
-5184
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16352
5K → 10K166481-315#16352#16667
10K → 15K32906-874#16667#17541
15K → 20K34958-924#17541#18465
20K → Half8129-121#18465#18586
Half → 25K71062-1055#18586#19641
25K → 30K28898-870#19641#20511
30K → 20M9472-463#20511#20974
20M → 21M20168-148#20974#21122
21M → 35K7711+66#21122#21056
35K → 23M17270-253#21056#21309
23M → 24M25100-75#21309#21384
24M → 40K5243+9#21384#21375
40K → 25.2M1059-49#21375#21424
25.2M → Finish16128-112#21424#21536
TOTALS5015685-5184
📊

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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing