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BOSTON MARATHON 2023

Jan-Joost Van Dijk

Bib: 3303•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 9%
Gender (Male)
#0 / 15176
Top 16%
Masters (Masters Men)
#0 / 9891
Top 5%
Division (M40-44)
#0 / 2241
Top 15%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:03
Rank: #2044
Start → 5K
20:03 | 6:27/mi
10K· 6.21 mi
40:02
Rank: #2202 (-158)
5K → 10K
19:59 | 6:26/mi
15K· 9.32 mi
1:00:28
Rank: #2476 (-274)
10K → 15K
20:26 | 6:35/mi
20K· 12.43 mi
1:20:58
Rank: #2536 (-60)
15K → 20K
20:30 | 6:36/mi
Half· 13.11 mi
1:25:26
Rank: #2561 (-25)
20K → Half
4:28 | 6:33/mi
25K· 15.53 mi
1:41:32
Rank: #2606 (-45)
Half → 25K
16:06 | 6:38/mi
30K· 18.64 mi
2:03:10
Rank: #2787 (-181)
25K → 30K
21:38 | 6:58/mi
20M
2:12:43
Rank: #2851 (-64)
30K → 20M
9:33 | 7:02/mi
21M
2:20:05
Rank: #2883 (-32)
20M → 21M
7:22 | 7:22/mi
35K· 21.75 mi
2:24:55
Rank: #2841 (+42)
21M → 35K
4:50 | 6:28/mi
23M
2:33:06
Rank: #2700 (+141)
35K → 23M
8:11 | 6:32/mi
24M
2:39:31
Rank: #2613 (+87)
23M → 24M
6:25 | 6:25/mi
40K· 24.85 mi
2:45:05
Rank: #2547 (+66)
24M → 40K
5:34 | 6:31/mi
25.2M
2:47:34
Rank: #2540 (+7)
40K → 25.2M
2:29 | 7:12/mi
Finish· 26.22 mi
2:54:09
Rank: #2504 (+36)
25.2M → Finish
6:35 | 6:28/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:26
Pace6:31 /mi
2nd Half
Distance13.11 mi
Time1:28:43
Pace6:46 /mi
📊Positive Split: 3.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:1520:036:2720:03
6:27
-
10K
6.21 mi10:41:1440:026:2719:59
6:26
-0:01
15K
9.32 mi11:01:401:00:286:2920:26
6:35
+0:09
20K
12.43 mi11:22:101:20:586:3120:30
6:36
+0:01
Half
13.11 mi11:26:381:25:266:314:28
6:33
-0:03
25K
15.53 mi11:42:441:41:326:3216:06
6:38
+0:05
30K
18.64 mi12:04:222:03:106:3621:38
6:58
+0:20
20M
20.00 mi12:13:552:12:436:389:33
7:02
+0:04
21M
21.00 mi12:21:172:20:056:407:22
7:22
+0:20
35K
21.75 mi12:26:072:24:556:404:50
6:28
-0:54
23M
23.00 mi12:34:182:33:066:398:11
6:32
+0:04
24M
24.00 mi12:40:432:39:316:396:25
6:25
-0:07
40K
24.85 mi12:46:172:45:056:395:34
6:31
+0:06
25.2M
25.20 mi12:48:462:47:346:392:29
7:12
+0:41
Finish
26.22 mi12:55:212:54:096:396:35
6:28
-0:44

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

6:25 /mi

Average Pace

6:39 /mi

Slowest Pace

7:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:44:18

94% of race

Time at Steady Pace

9:51

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:39 /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 mi10:21:1520:036:2720:03
6:27
#2044
10K
6.21 mi10:41:1440:026:2719:59
6:26
#2202
15K
9.32 mi11:01:401:00:286:2920:26
6:35
#2476
20K
12.43 mi11:22:101:20:586:3120:30
6:36
#2536
Half
13.11 mi11:26:381:25:266:314:28
6:33
#2561
25K
15.53 mi11:42:441:41:326:3216:06
6:38
#2606
30K
18.64 mi12:04:222:03:106:3621:38
6:58
#2787
20M
20.00 mi12:13:552:12:436:389:33
7:02
#2851
21M
21.00 mi12:21:172:20:056:407:22
7:22
#2883
35K
21.75 mi12:26:072:24:556:404:50
6:28
#2841
23M
23.00 mi12:34:182:33:066:398:11
6:32
#2700
24M
24.00 mi12:40:432:39:316:396:25
6:25
#2613
40K
24.85 mi12:46:172:45:056:395:34
6:31
#2547
25.2M
25.20 mi12:48:462:47:346:392:29
7:12
#2540
Finish
26.22 mi12:55:212:54:096:396:35
6:28
#2504
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi2044195019503096(Top 12%)2950(Top 19%)2950(Top 132%)
10K6.21 mi3.10 mi2202-1582108-1582108-1582406(Top 9%)2304(Top 15%)2304(Top 103%)
15K9.32 mi3.11 mi2476-2742365-2572365-2573096(Top 12%)2950(Top 19%)2950(Top 132%)
20K12.43 mi3.11 mi2536-602427-622427-622823(Top 11%)2697(Top 18%)2697(Top 120%)
Half13.11 mi0.68 mi2561-252453-262453-263034(Top 11%)2899(Top 19%)2899(Top 129%)
25K15.53 mi2.42 mi2606-452492-392492-392936(Top 11%)2803(Top 18%)2803(Top 125%)
30K18.64 mi3.11 mi2787-1812665-1732665-1734082(Top 15%)3809(Top 25%)3809(Top 170%)
20M20.00 mi1.36 mi2851-642725-602725-604157(Top 16%)3836(Top 25%)3836(Top 171%)
21M21.00 mi1.00 mi2883-322751-262751-263933(Top 15%)3625(Top 24%)3625(Top 162%)
35K21.75 mi0.75 mi2841+422714+372714+372241(Top 8%)2128(Top 14%)2128(Top 95%)
23M23.00 mi1.25 mi2700+1412580+1342580+1341569(Top 6%)1491(Top 10%)1491(Top 67%)
24M24.00 mi1.00 mi2613+872497+832497+831752(Top 7%)1653(Top 11%)1653(Top 74%)
40K24.85 mi0.85 mi2547+662432+652432+651585(Top 6%)1495(Top 10%)1495(Top 67%)
25.2M25.20 mi0.35 mi2540+72424+82424+82496(Top 9%)2309(Top 15%)2309(Top 103%)
Finish26.22 mi1.02 mi2504+362389+352389+352287(Top 9%)2115(Top 14%)2115(Top 94%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21stories
+97ft-345ft

Overall

3096

Males

2950

M40-44

2950

5K→10K

3.1 - 6.2 mi

Top 9%
×5stories
+79ft-138ft

Overall

2406

Males

2304

M40-44

2304

10K→15K

6.2 - 9.3 mi

Top 12%
×3stories
+67ft-78ft

Overall

3096

Males

2950

M40-44

2950

15K→20K

9.3 - 12.4 mi

Top 11%
×5stories
+106ft-86ft

Overall

2823

Males

2697

M40-44

2697

20K→Half

12.4 - 13.1 mi

Top 11%
×2stories
+19ft-37ft

Overall

3034

Males

2899

M40-44

2899

Half→25K

13.1 - 15.5 mi

Top 11%
×4stories
+66ft-88ft

Overall

2936

Males

2803

M40-44

2803

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

4082

Males

3809

M40-44

3809

30K→20M

18.6 - 20.0 mi

Top 16%
×5stories
+64ft-50ft

Overall

4157

Males

3836

M40-44

3836

20M→21M

20.0 - 21.0 mi

Top 15%
×8stories
+106ft-24ft

Overall

3933

Males

3625

M40-44

3625

21M→35K

21.0 - 21.8 mi

Top 8%
×7stories
+17ft-86ft

Overall

2241

Males

2128

M40-44

2128

35K→23M

21.8 - 23.0 mi

Top 6%
×5stories
+23ft-63ft

Overall

1569

Males

1491

M40-44

1491

23M→24M

23.0 - 24.0 mi

Top 7%
×6stories
+12ft-82ft

Overall

1752

Males

1653

M40-44

1653

24M→40K

24.0 - 24.9 mi

Top 6%
×1story
+6ft-20ft

Overall

1585

Males

1495

M40-44

1495

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2496

Males

2309

M40-44

2309

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×2stories
+22ft-21ft

Overall

2287

Males

2115

M40-44

2115

Passing Analysis

Category:
Athletes Passed
674
Passed By
1134
Net Change
-460
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2044
5K → 10K53211-158#2044#2202
10K → 15K15289-274#2202#2476
15K → 20K3999-60#2476#2536
20K → Half530-25#2536#2561
Half → 25K3782-45#2561#2606
25K → 30K32213-181#2606#2787
30K → 20M2185-64#2787#2851
20M → 21M3264-32#2851#2883
21M → 35K5311+42#2883#2841
35K → 23M1443+141#2841#2700
23M → 24M9811+87#2700#2613
24M → 40K715+66#2613#2547
40K → 25.2M2013+7#2547#2540
25.2M → Finish5418+36#2540#2504
TOTALS6741134-460
📊

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