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BOSTON MARATHON 2024

Jelmer Koppelmans

Bib: 27954•M

0:00
0:00
/ mi
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Overall
#0 / 25550
Gender (Male)
#0 / 14578
Division (M18-39)
#0 / 4849
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
9:26/mi
29:20
↑ 97↓ 3451.5%
10K· 6.21 mi
9:06/mi
57:36
↑ 79↓ 1380.4%
15K· 9.32 mi
9:11/mi
1:26:08
↑ 67↓ 78
20K· 12.43 mi
10:14/mi
1:57:55
↑ 106↓ 860.1%
Half· 13.11 mi
10:01/mi
2:04:45
↑ 19↓ 370.5%
25K· 15.53 mi
11:08/mi
2:31:45
↑ 66↓ 880.2%
30K· 18.64 mi
12:01/mi
3:09:04
↑ 181↓ 1480.2%
20M
12:31/mi
3:26:04
↑ 64↓ 500.2%
21M
13:39/mi
3:39:43
↑ 106↓ 241.6%
35K· 21.75 mi
10:55/mi
3:47:53
↑ 17↓ 861.7%
23M
14:34/mi
4:06:07
↑ 23↓ 630.6%
24M
12:56/mi
4:19:03
↓ 821.3%
40K· 24.85 mi
12:32/mi
4:29:46
↓ 200.3%
25.2M
10:58/mi
4:33:33
↑ 13↓ 160.2%
Finish· 26.22 mi
9:39/mi
4:43:23
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:04:45
Pace9:31 /mi
2nd Half
Distance13.11 mi
Time2:38:38
Pace12:06 /mi
📊Positive Split: 27.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:2429:209:2629:20
9:26
-
10K
6.21 mi12:16:4057:369:1628:16
9:06
-0:20
15K
9.32 mi12:45:121:26:089:1428:32
9:11
+0:05
20K
12.43 mi13:16:591:57:559:2931:47
10:14
+1:03
Half
13.11 mi13:23:492:04:459:316:50
10:01
-0:13
25K
15.53 mi13:50:492:31:459:4627:00
11:08
+1:07
30K
18.64 mi14:28:083:09:0410:0937:19
12:01
+0:53
20M
20.00 mi14:45:083:26:0410:1817:00
12:31
+0:30
21M
21.00 mi14:58:473:39:4310:2813:39
13:39
+1:08
35K
21.75 mi15:06:573:47:5310:298:10
10:55
-2:44
23M
23.00 mi15:25:114:06:0710:4218:14
14:34
+3:39
24M
24.00 mi15:38:074:19:0310:4812:56
12:56
-1:38
40K
24.85 mi15:48:504:29:4610:5110:43
12:32
-0:24
25.2M
25.20 mi15:52:374:33:3310:513:47
10:58
-1:34
Finish
26.22 mi16:02:274:43:2310:499:50
9:39
-1:19

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

9:06 /mi

Average Pace

10:49 /mi

Slowest Pace

14:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:42:48

36% of race

Time at Steady Pace

1:10:44

25% of race

Time at Slower Pace

1:49:51

39% of race

Average Pace: 10:48 /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 mi11:48:2429:209:2629:20
9:26
#21557
10K
6.21 mi12:16:4057:369:1628:16
9:06
#20890
15K
9.32 mi12:45:121:26:089:1428:32
9:11
#20454
20K
12.43 mi13:16:591:57:559:2931:47
10:14
#20650
Half
13.11 mi13:23:492:04:459:316:50
10:01
#20704
25K
15.53 mi13:50:492:31:459:4627:00
11:08
#20877
30K
18.64 mi14:28:083:09:0410:0937:19
12:01
#21105
20M
20.00 mi14:45:083:26:0410:1817:00
12:31
#21222
21M
21.00 mi14:58:473:39:4310:2813:39
13:39
#21264
35K
21.75 mi15:06:573:47:5310:298:10
10:55
#21197
23M
23.00 mi15:25:114:06:0710:4218:14
14:34
#21496
24M
24.00 mi15:38:074:19:0310:4812:56
12:56
#21575
40K
24.85 mi15:48:504:29:4610:5110:43
12:32
#21569
25.2M
25.20 mi15:52:374:33:3310:513:47
10:58
#21477
Finish
26.22 mi16:02:274:43:2310:499:50
9:39
#21345
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi21557128141281419658(Top 77%)12013(Top 82%)12013(Top 248%)
10K6.21 mi3.10 mi20890+66712515+29912515+29920141(Top 79%)12201(Top 84%)12201(Top 252%)
15K9.32 mi3.11 mi20454+43612346+16912346+16919658(Top 77%)12013(Top 82%)12013(Top 248%)
20K12.43 mi3.11 mi20650-19612437-9112437-9121072(Top 82%)12630(Top 87%)12630(Top 260%)
Half13.11 mi0.68 mi20704-5412459-2212459-2221499(Top 84%)12779(Top 88%)12779(Top 264%)
25K15.53 mi2.42 mi20877-17312520-6112520-6121743(Top 85%)12843(Top 88%)12843(Top 265%)
30K18.64 mi3.11 mi21105-22812568-4812568-4821953(Top 86%)12772(Top 88%)12772(Top 263%)
20M20.00 mi1.36 mi21222-11712599-3112599-3122185(Top 87%)12793(Top 88%)12793(Top 264%)
21M21.00 mi1.00 mi21264-4212592+712592+721822(Top 85%)12568(Top 86%)12568(Top 259%)
35K21.75 mi0.75 mi21197+6712542+5012542+5019625(Top 77%)11450(Top 79%)11450(Top 236%)
23M23.00 mi1.25 mi21496-29912660-11812660-11824319(Top 95%)13827(Top 95%)13827(Top 285%)
24M24.00 mi1.00 mi21575-7912674-1412674-1422975(Top 90%)13041(Top 89%)13041(Top 269%)
40K24.85 mi0.85 mi21569+612653+2112653+2121458(Top 84%)12210(Top 84%)12210(Top 252%)
25.2M25.20 mi0.35 mi21477+9212602+5112602+5114387(Top 56%)8624(Top 59%)8624(Top 178%)
Finish26.22 mi1.02 mi21345+13212526+7612526+7617144(Top 67%)10030(Top 69%)10030(Top 207%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21story building
+97ft-345ft

Overall

19658

Males

12013

M18-39

12013

5K→10K

3.1 - 6.2 mi

Top 79%
×5story building
+79ft-138ft

Overall

20141

Males

12201

M18-39

12201

10K→15K

6.2 - 9.3 mi

Top 77%
×3story building
+67ft-78ft

Overall

19658

Males

12013

M18-39

12013

15K→20K

9.3 - 12.4 mi

Top 82%
×5story building
+106ft-86ft

Overall

21072

Males

12630

M18-39

12630

20K→Half

12.4 - 13.1 mi

Top 84%
×2story building
+19ft-37ft

Overall

21499

Males

12779

M18-39

12779

Half→25K

13.1 - 15.5 mi

Top 85%
×4story building
+66ft-88ft

Overall

21743

Males

12843

M18-39

12843

25K→30K

15.5 - 18.6 mi

Top 86%
×9story building
+181ft-148ft

Overall

21953

Males

12772

M18-39

12772

30K→20M

18.6 - 20.0 mi

Top 87%
×5story building
+64ft-50ft

Overall

22185

Males

12793

M18-39

12793

20M→21M

20.0 - 21.0 mi

Top 85%
×8story building
+106ft-24ft

Overall

21822

Males

12568

M18-39

12568

21M→35K

21.0 - 21.8 mi

Top 77%
×7story building
+17ft-86ft

Overall

19625

Males

11450

M18-39

11450

35K→23M

21.8 - 23.0 mi

Top 95%
×5story building
+23ft-63ft

Overall

24319

Males

13827

M18-39

13827

23M→24M

23.0 - 24.0 mi

Top 90%
×6story building
+12ft-82ft

Overall

22975

Males

13041

M18-39

13041

24M→40K

24.0 - 24.9 mi

Top 84%
×1story
+6ft-20ft

Overall

21458

Males

12210

M18-39

12210

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

14387

Males

8624

M18-39

8624

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2story building
+22ft-21ft

Overall

17144

Males

10030

M18-39

10030

Passing Analysis

Category:
Athletes Passed
2053
Passed By
1841
Net Change
+212
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21557
5K → 10K71245+667#21557#20890
10K → 15K47943+436#20890#20454
15K → 20K121317-196#20454#20650
20K → Half1973-54#20650#20704
Half → 25K102275-173#20704#20877
25K → 30K104332-228#20877#21105
30K → 20M42159-117#21105#21222
20M → 21M5193-42#21222#21264
21M → 35K8821+67#21264#21197
35K → 23M16315-299#21197#21496
23M → 24M38117-79#21496#21575
24M → 40K5145+6#21575#21569
40K → 25.2M920+92#21569#21477
25.2M → Finish1386+132#21477#21345
TOTALS20531841+212
📊

Passing Visuals

Category:
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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