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BOSTON MARATHON 2024

Cornelis Jansen

Bib: 1890•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 7%
Gender (Male)
#0 / 14578
Top 11%
Masters (Masters Men)
#0 / 9729
Top 4%
Division (M40-44)
#0 / 2009
Top 11%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:06
Rank: #1397
Start → 5K
19:06 | 6:09/mi
10K· 6.21 mi
38:27
Rank: #1488 (-91)
5K → 10K
19:21 | 6:14/mi
15K· 9.32 mi
57:58
Rank: #1538 (-50)
10K → 15K
19:31 | 6:17/mi
20K· 12.43 mi
1:18:04
Rank: #1632 (-94)
15K → 20K
20:06 | 6:28/mi
Half· 13.11 mi
1:22:25
Rank: #1637 (-5)
20K → Half
4:21 | 6:23/mi
25K· 15.53 mi
1:38:52
Rank: #1818 (-181)
Half → 25K
16:27 | 6:47/mi
30K· 18.64 mi
2:00:24
Rank: #1859 (-41)
25K → 30K
21:32 | 6:56/mi
20M
2:09:58
Rank: #1875 (-16)
30K → 20M
9:34 | 7:02/mi
21M
2:17:22
Rank: #1859 (+16)
20M → 21M
7:24 | 7:24/mi
35K· 21.75 mi
2:22:19
Rank: #1812 (+47)
21M → 35K
4:57 | 6:37/mi
23M
2:31:12
Rank: #1788 (+24)
35K → 23M
8:53 | 7:06/mi
24M
2:38:14
Rank: #1780 (+8)
23M → 24M
7:02 | 7:02/mi
40K· 24.85 mi
2:44:22
Rank: #1774 (+6)
24M → 40K
6:08 | 7:10/mi
25.2M
2:47:04
Rank: #1765 (+9)
40K → 25.2M
2:42 | 7:50/mi
Finish· 26.22 mi
2:53:43
Rank: #1696 (+69)
25.2M → Finish
6:39 | 6:32/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:25
Pace6:17 /mi
2nd Half
Distance13.11 mi
Time1:31:18
Pace6:58 /mi
📊Positive Split: 10.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:2919:066:0919:06
6:09
-
10K
6.21 mi10:38:5038:276:1119:21
6:14
+0:05
15K
9.32 mi10:58:2157:586:1319:31
6:17
+0:03
20K
12.43 mi11:18:271:18:046:1720:06
6:28
+0:11
Half
13.11 mi11:22:481:22:256:174:21
6:23
-0:05
25K
15.53 mi11:39:151:38:526:2216:27
6:47
+0:24
30K
18.64 mi12:00:472:00:246:2821:32
6:56
+0:09
20M
20.00 mi12:10:212:09:586:309:34
7:02
+0:06
21M
21.00 mi12:17:452:17:226:327:24
7:24
+0:22
35K
21.75 mi12:22:422:22:196:334:57
6:37
-0:47
23M
23.00 mi12:31:352:31:126:348:53
7:06
+0:29
24M
24.00 mi12:38:372:38:146:367:02
7:02
-0:04
40K
24.85 mi12:44:452:44:226:376:08
7:10
+0:08
25.2M
25.20 mi12:47:272:47:046:382:42
7:50
+0:40
Finish
26.22 mi12:54:062:53:436:386:39
6:32
-1:18

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

6:09 /mi

Average Pace

6:38 /mi

Slowest Pace

7:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:29:04

51% of race

Time at Steady Pace

42:56

25% of race

Time at Slower Pace

41:43

24% of race

Average Pace: 6:38 /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 mi10:19:2919:066:0919:06
6:09
#1397
10K
6.21 mi10:38:5038:276:1119:21
6:14
#1488
15K
9.32 mi10:58:2157:586:1319:31
6:17
#1538
20K
12.43 mi11:18:271:18:046:1720:06
6:28
#1632
Half
13.11 mi11:22:481:22:256:174:21
6:23
#1637
25K
15.53 mi11:39:151:38:526:2216:27
6:47
#1818
30K
18.64 mi12:00:472:00:246:2821:32
6:56
#1859
20M
20.00 mi12:10:212:09:586:309:34
7:02
#1875
21M
21.00 mi12:17:452:17:226:327:24
7:24
#1859
35K
21.75 mi12:22:422:22:196:334:57
6:37
#1812
23M
23.00 mi12:31:352:31:126:348:53
7:06
#1788
24M
24.00 mi12:38:372:38:146:367:02
7:02
#1780
40K
24.85 mi12:44:452:44:226:376:08
7:10
#1774
25.2M
25.20 mi12:47:272:47:046:382:42
7:50
#1765
Finish
26.22 mi12:54:062:53:436:386:39
6:32
#1696
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi1397134813481660(Top 6%)1608(Top 11%)1608(Top 80%)
10K6.21 mi3.10 mi1488-911439-911439-911611(Top 6%)1560(Top 11%)1560(Top 78%)
15K9.32 mi3.11 mi1538-501492-531492-531660(Top 6%)1608(Top 11%)1608(Top 80%)
20K12.43 mi3.11 mi1632-941583-911583-912017(Top 8%)1947(Top 13%)1947(Top 97%)
Half13.11 mi0.68 mi1637-51588-51588-51972(Top 8%)1902(Top 13%)1902(Top 95%)
25K15.53 mi2.42 mi1818-1811760-1721760-1723082(Top 12%)2897(Top 20%)2897(Top 144%)
30K18.64 mi3.11 mi1859-411798-381798-382506(Top 10%)2351(Top 16%)2351(Top 117%)
20M20.00 mi1.36 mi1875-161808-101808-102510(Top 10%)2333(Top 16%)2333(Top 116%)
21M21.00 mi1.00 mi1859+161792+161792+162174(Top 9%)2006(Top 14%)2006(Top 100%)
35K21.75 mi0.75 mi1812+471744+481744+481602(Top 6%)1498(Top 10%)1498(Top 75%)
23M23.00 mi1.25 mi1788+241717+271717+272239(Top 9%)2029(Top 14%)2029(Top 101%)
24M24.00 mi1.00 mi1780+81706+111706+112423(Top 9%)2154(Top 15%)2154(Top 107%)
40K24.85 mi0.85 mi1774+61698+81698+82376(Top 9%)2088(Top 14%)2088(Top 104%)
25.2M25.20 mi0.35 mi1765+91689+91689+92217(Top 9%)1941(Top 13%)1941(Top 97%)
Finish26.22 mi1.02 mi1696+691620+691620+691461(Top 6%)1314(Top 9%)1314(Top 65%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21stories
+97ft-345ft

Overall

1660

Males

1608

M40-44

1608

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1611

Males

1560

M40-44

1560

10K→15K

6.2 - 9.3 mi

Top 6%
×3stories
+67ft-78ft

Overall

1660

Males

1608

M40-44

1608

15K→20K

9.3 - 12.4 mi

Top 8%
×5stories
+106ft-86ft

Overall

2017

Males

1947

M40-44

1947

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

1972

Males

1902

M40-44

1902

Half→25K

13.1 - 15.5 mi

Top 12%
×4stories
+66ft-88ft

Overall

3082

Males

2897

M40-44

2897

25K→30K

15.5 - 18.6 mi

Top 10%
×9stories
+181ft-148ft

Overall

2506

Males

2351

M40-44

2351

30K→20M

18.6 - 20.0 mi

Top 10%
×5stories
+64ft-50ft

Overall

2510

Males

2333

M40-44

2333

20M→21M

20.0 - 21.0 mi

Top 9%
×8stories
+106ft-24ft

Overall

2174

Males

2006

M40-44

2006

21M→35K

21.0 - 21.8 mi

Top 6%
×7stories
+17ft-86ft

Overall

1602

Males

1498

M40-44

1498

35K→23M

21.8 - 23.0 mi

Top 9%
×5stories
+23ft-63ft

Overall

2239

Males

2029

M40-44

2029

23M→24M

23.0 - 24.0 mi

Top 9%
×6stories
+12ft-82ft

Overall

2423

Males

2154

M40-44

2154

24M→40K

24.0 - 24.9 mi

Top 9%
×1story
+6ft-20ft

Overall

2376

Males

2088

M40-44

2088

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2217

Males

1941

M40-44

1941

25.2M→Finish

25.2 - 26.2 mi

Top 6%
×2stories
+22ft-21ft

Overall

1461

Males

1314

M40-44

1314

Passing Analysis

Category:
Athletes Passed
632
Passed By
931
Net Change
-299
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1397
5K → 10K40131-91#1397#1488
10K → 15K3888-50#1488#1538
15K → 20K40134-94#1538#1632
20K → Half712-5#1632#1637
Half → 25K32213-181#1637#1818
25K → 30K91132-41#1818#1859
30K → 20M4460-16#1859#1875
20M → 21M5539+16#1875#1859
21M → 35K5811+47#1859#1812
35K → 23M6339+24#1812#1788
23M → 24M4032+8#1788#1780
24M → 40K2822+6#1780#1774
40K → 25.2M2213+9#1774#1765
25.2M → Finish745+69#1765#1696
TOTALS632931-299
📊

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