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BOSTON MARATHON 2023

Koen Van Pulver

Bib: 30236•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
29:07
Rank: #21718
Start → 5K
29:07 | 9:22/mi
10K· 6.21 mi
56:41
Rank: #21142 (+576)
5K → 10K
27:34 | 8:52/mi
15K· 9.32 mi
1:23:45
Rank: #20504 (+638)
10K → 15K
27:04 | 8:43/mi
20K· 12.43 mi
1:51:01
Rank: #20028 (+476)
15K → 20K
27:16 | 8:47/mi
Half· 13.11 mi
1:56:57
Rank: #19974 (+54)
20K → Half
5:56 | 8:42/mi
25K· 15.53 mi
2:18:40
Rank: #19758 (+216)
Half → 25K
21:43 | 8:57/mi
30K· 18.64 mi
2:47:32
Rank: #19535 (+223)
25K → 30K
28:52 | 9:17/mi
20M
3:01:02
Rank: #19607 (-72)
30K → 20M
13:30 | 9:56/mi
21M
3:12:49
Rank: #19867 (-260)
20M → 21M
11:47 | 11:47/mi
35K· 21.75 mi
3:20:13
Rank: #19923 (-56)
21M → 35K
7:24 | 9:53/mi
23M
3:33:51
Rank: #20124 (-201)
35K → 23M
13:38 | 10:53/mi
24M
3:43:34
Rank: #20117 (+7)
23M → 24M
9:43 | 9:43/mi
40K· 24.85 mi
3:52:23
Rank: #20153 (-36)
24M → 40K
8:49 | 10:19/mi
25.2M
3:56:28
Rank: #20186 (-33)
40K → 25.2M
4:05 | 11:50/mi
Finish· 26.22 mi
4:05:42
Rank: #20111 (+75)
25.2M → Finish
9:14 | 9:04/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:57
Pace8:55 /mi
2nd Half
Distance13.11 mi
Time2:08:45
Pace9:49 /mi
📊Positive Split: 10.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:0029:079:2229:07
9:22
-
10K
6.21 mi12:15:3456:419:0727:34
8:52
-0:30
15K
9.32 mi12:42:381:23:458:5927:04
8:43
-0:09
20K
12.43 mi13:09:541:51:018:5627:16
8:47
+0:04
Half
13.11 mi13:15:501:56:578:555:56
8:42
-0:05
25K
15.53 mi13:37:332:18:408:5621:43
8:57
+0:15
30K
18.64 mi14:06:252:47:328:5928:52
9:17
+0:20
20M
20.00 mi14:19:553:01:029:0313:30
9:56
+0:39
21M
21.00 mi14:31:423:12:499:1111:47
11:47
+1:51
35K
21.75 mi14:39:063:20:139:127:24
9:53
-1:54
23M
23.00 mi14:52:443:33:519:1813:38
10:53
+1:00
24M
24.00 mi15:02:273:43:349:199:43
9:43
-1:10
40K
24.85 mi15:11:163:52:239:218:49
10:19
+0:36
25.2M
25.20 mi15:15:213:56:289:234:05
11:50
+1:31
Finish
26.22 mi15:24:354:05:429:239:14
9:04
-2:46

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

8:42 /mi

Average Pace

9:23 /mi

Slowest Pace

11:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:00:16

25% of race

Time at Steady Pace

2:06:13

51% of race

Time at Slower Pace

59:13

24% of race

Average Pace: 9:22 /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 mi11:48:0029:079:2229:07
9:22
#21718
10K
6.21 mi12:15:3456:419:0727:34
8:52
#21142
15K
9.32 mi12:42:381:23:458:5927:04
8:43
#20504
20K
12.43 mi13:09:541:51:018:5627:16
8:47
#20028
Half
13.11 mi13:15:501:56:578:555:56
8:42
#19974
25K
15.53 mi13:37:332:18:408:5621:43
8:57
#19758
30K
18.64 mi14:06:252:47:328:5928:52
9:17
#19535
20M
20.00 mi14:19:553:01:029:0313:30
9:56
#19607
21M
21.00 mi14:31:423:12:499:1111:47
11:47
#19867
35K
21.75 mi14:39:063:20:139:127:24
9:53
#19923
23M
23.00 mi14:52:443:33:519:1813:38
10:53
#20124
24M
24.00 mi15:02:273:43:349:199:43
9:43
#20117
40K
24.85 mi15:11:163:52:239:218:49
10:19
#20153
25.2M
25.20 mi15:15:213:56:289:234:05
11:50
#20186
Finish
26.22 mi15:24:354:05:429:239:14
9:04
#20111
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi21718129461294619039(Top 72%)11892(Top 78%)11892(Top 531%)
10K6.21 mi3.10 mi21142+57612732+21412732+21420297(Top 76%)12409(Top 82%)12409(Top 554%)
15K9.32 mi3.11 mi20504+63812467+26512467+26519039(Top 72%)11892(Top 78%)11892(Top 531%)
20K12.43 mi3.11 mi20028+47612270+19712270+19718544(Top 70%)11708(Top 77%)11708(Top 522%)
Half13.11 mi0.68 mi19974+5412243+2712243+2718900(Top 71%)11865(Top 78%)11865(Top 529%)
25K15.53 mi2.42 mi19758+21612156+8712156+8718744(Top 70%)11741(Top 77%)11741(Top 524%)
30K18.64 mi3.11 mi19535+22312067+8912067+8918589(Top 70%)11605(Top 76%)11605(Top 518%)
20M20.00 mi1.36 mi19607-7212081-1412081-1420273(Top 76%)12240(Top 81%)12240(Top 546%)
21M21.00 mi1.00 mi19867-26012185-10412185-10422381(Top 84%)13145(Top 87%)13145(Top 587%)
35K21.75 mi0.75 mi19923-5612195-1012195-1020963(Top 79%)12465(Top 82%)12465(Top 556%)
23M23.00 mi1.25 mi20124-20112264-6912264-6922124(Top 83%)12968(Top 85%)12968(Top 579%)
24M24.00 mi1.00 mi20117+712256+812256+819944(Top 75%)11978(Top 79%)11978(Top 534%)
40K24.85 mi0.85 mi20153-3612261-512261-520762(Top 78%)12266(Top 81%)12266(Top 547%)
25.2M25.20 mi0.35 mi20186-3312265-412265-422196(Top 83%)12937(Top 85%)12937(Top 577%)
Finish26.22 mi1.02 mi20111+7512224+4112224+4118273(Top 69%)11206(Top 74%)11206(Top 500%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21stories
+97ft-345ft

Overall

19039

Males

11892

M40-44

11892

5K→10K

3.1 - 6.2 mi

Top 76%
×5stories
+79ft-138ft

Overall

20297

Males

12409

M40-44

12409

10K→15K

6.2 - 9.3 mi

Top 72%
×3stories
+67ft-78ft

Overall

19039

Males

11892

M40-44

11892

15K→20K

9.3 - 12.4 mi

Top 70%
×5stories
+106ft-86ft

Overall

18544

Males

11708

M40-44

11708

20K→Half

12.4 - 13.1 mi

Top 71%
×2stories
+19ft-37ft

Overall

18900

Males

11865

M40-44

11865

Half→25K

13.1 - 15.5 mi

Top 70%
×4stories
+66ft-88ft

Overall

18744

Males

11741

M40-44

11741

25K→30K

15.5 - 18.6 mi

Top 70%
×9stories
+181ft-148ft

Overall

18589

Males

11605

M40-44

11605

30K→20M

18.6 - 20.0 mi

Top 76%
×5stories
+64ft-50ft

Overall

20273

Males

12240

M40-44

12240

20M→21M

20.0 - 21.0 mi

Top 84%
×8stories
+106ft-24ft

Overall

22381

Males

13145

M40-44

13145

21M→35K

21.0 - 21.8 mi

Top 79%
×7stories
+17ft-86ft

Overall

20963

Males

12465

M40-44

12465

35K→23M

21.8 - 23.0 mi

Top 83%
×5stories
+23ft-63ft

Overall

22124

Males

12968

M40-44

12968

23M→24M

23.0 - 24.0 mi

Top 75%
×6stories
+12ft-82ft

Overall

19944

Males

11978

M40-44

11978

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

20762

Males

12266

M40-44

12266

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

22196

Males

12937

M40-44

12937

25.2M→Finish

25.2 - 26.2 mi

Top 69%
×2stories
+22ft-21ft

Overall

18273

Males

11206

M40-44

11206

Passing Analysis

Category:
Athletes Passed
2726
Passed By
1119
Net Change
+1607
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21718
5K → 10K65579+576#21718#21142
10K → 15K65416+638#21142#20504
15K → 20K49519+476#20504#20028
20K → Half6410+54#20028#19974
Half → 25K24933+216#19974#19758
25K → 30K28461+223#19758#19535
30K → 20M63135-72#19535#19607
20M → 21M28288-260#19607#19867
21M → 35K3086-56#19867#19923
35K → 23M35236-201#19923#20124
23M → 24M4437+7#20124#20117
24M → 40K3268-36#20117#20153
40K → 25.2M841-33#20153#20186
25.2M → Finish8510+75#20186#20111
TOTALS27261119+1607
📊

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