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BOSTON MARATHON 2025

Jaap Norbruis

Bib: 4062•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 20%
Gender (Male)
#0 / 16105
Top 31%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:37
Rank: #4914
Start → 5K
20:37 | 6:38/mi
10K· 6.21 mi
41:17
Rank: #4871 (+43)
5K → 10K
20:40 | 6:39/mi
15K· 9.32 mi
1:01:36
Rank: #4469 (+402)
10K → 15K
20:19 | 6:32/mi
20K· 12.43 mi
1:22:48
Rank: #4668 (-199)
15K → 20K
21:12 | 6:49/mi
Half· 13.11 mi
1:27:15
Rank: #4610 (+58)
20K → Half
4:27 | 6:31/mi
25K· 15.53 mi
1:44:31
Rank: #5053 (-443)
Half → 25K
17:16 | 7:07/mi
30K· 18.64 mi
2:06:54
Rank: #5229 (-176)
25K → 30K
22:23 | 7:12/mi
20M
2:16:48
Rank: #5270 (-41)
30K → 20M
9:54 | 7:17/mi
21M
2:24:41
Rank: #5358 (-88)
20M → 21M
7:53 | 7:53/mi
35K· 21.75 mi
2:30:29
Rank: #5531 (-173)
21M → 35K
5:48 | 7:45/mi
23M
2:39:56
Rank: #5526 (+5)
35K → 23M
9:27 | 7:33/mi
24M
2:47:29
Rank: #5557 (-31)
23M → 24M
7:33 | 7:33/mi
40K· 24.85 mi
2:53:57
Rank: #5567 (-10)
24M → 40K
6:28 | 7:34/mi
25.2M
2:56:56
Rank: #5582 (-15)
40K → 25.2M
2:59 | 8:39/mi
Finish· 26.22 mi
3:04:24
Rank: #5616 (-34)
25.2M → Finish
7:28 | 7:20/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:15
Pace6:39 /mi
2nd Half
Distance13.11 mi
Time1:37:09
Pace7:25 /mi
📊Positive Split: 11.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:4020:376:3820:37
6:38
-
10K
6.21 mi10:43:2041:176:3920:40
6:39
+0:01
15K
9.32 mi11:03:391:01:366:3720:19
6:32
-0:07
20K
12.43 mi11:24:511:22:486:4021:12
6:49
+0:17
Half
13.11 mi11:29:181:27:156:394:27
6:31
-0:18
25K
15.53 mi11:46:341:44:316:4417:16
7:07
+0:36
30K
18.64 mi12:08:572:06:546:4822:23
7:12
+0:05
20M
20.00 mi12:18:512:16:486:509:54
7:17
+0:05
21M
21.00 mi12:26:442:24:416:537:53
7:53
+0:36
35K
21.75 mi12:32:322:30:296:555:48
7:45
-0:08
23M
23.00 mi12:41:592:39:566:579:27
7:33
-0:12
24M
24.00 mi12:49:322:47:296:597:33
7:33
0:00
40K
24.85 mi12:56:002:53:577:006:28
7:34
+0:01
25.2M
25.20 mi12:58:592:56:567:012:59
8:39
+1:05
Finish
26.22 mi13:06:273:04:247:027:28
7:20
-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

6:31 /mi

Average Pace

7:02 /mi

Slowest Pace

8:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:27:15

47% of race

Time at Steady Pace

1:20:29

44% of race

Time at Slower Pace

16:40

9% of race

Average Pace: 7:02 /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 mi10:22:4020:376:3820:37
6:38
#4914
10K
6.21 mi10:43:2041:176:3920:40
6:39
#4871
15K
9.32 mi11:03:391:01:366:3720:19
6:32
#4469
20K
12.43 mi11:24:511:22:486:4021:12
6:49
#4668
Half
13.11 mi11:29:181:27:156:394:27
6:31
#4610
25K
15.53 mi11:46:341:44:316:4417:16
7:07
#5053
30K
18.64 mi12:08:572:06:546:4822:23
7:12
#5229
20M
20.00 mi12:18:512:16:486:509:54
7:17
#5270
21M
21.00 mi12:26:442:24:416:537:53
7:53
#5358
35K
21.75 mi12:32:322:30:296:555:48
7:45
#5531
23M
23.00 mi12:41:592:39:566:579:27
7:33
#5526
24M
24.00 mi12:49:322:47:296:597:33
7:33
#5557
40K
24.85 mi12:56:002:53:577:006:28
7:34
#5567
25.2M
25.20 mi12:58:592:56:567:012:59
8:39
#5582
Finish
26.22 mi13:06:273:04:247:027:28
7:20
#5616
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4914459945993820(Top 13%)3605(Top 22%)3605(Top 64%)
10K6.21 mi3.10 mi4871+434552+474552+474906(Top 17%)4582(Top 28%)4582(Top 81%)
15K9.32 mi3.11 mi4469+4024202+3504202+3503820(Top 13%)3605(Top 22%)3605(Top 64%)
20K12.43 mi3.11 mi4668-1994360-1584360-1585548(Top 20%)5065(Top 31%)5065(Top 90%)
Half13.11 mi0.68 mi4610+584311+494311+493889(Top 14%)3669(Top 23%)3669(Top 65%)
25K15.53 mi2.42 mi5053-4434683-3724683-3727097(Top 25%)6187(Top 38%)6187(Top 110%)
30K18.64 mi3.11 mi5229-1764809-1264809-1265928(Top 21%)5263(Top 33%)5263(Top 93%)
20M20.00 mi1.36 mi5270-414832-234832-235700(Top 20%)4980(Top 31%)4980(Top 88%)
21M21.00 mi1.00 mi5358-884898-664898-666673(Top 23%)5484(Top 34%)5484(Top 97%)
35K21.75 mi0.75 mi5531-1735038-1405038-14010399(Top 37%)7553(Top 47%)7553(Top 134%)
23M23.00 mi1.25 mi5526+55016+225016+226890(Top 24%)5524(Top 34%)5524(Top 98%)
24M24.00 mi1.00 mi5557-315025-95025-98026(Top 28%)6121(Top 38%)6121(Top 108%)
40K24.85 mi0.85 mi5567-105016+95016+97156(Top 25%)5517(Top 34%)5517(Top 98%)
25.2M25.20 mi0.35 mi5582-155021-55021-59630(Top 34%)6749(Top 42%)6749(Top 120%)
Finish26.22 mi1.02 mi5616-345033-125033-127934(Top 28%)5868(Top 36%)5868(Top 104%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 13%
×21stories
+97ft-345ft

Overall

3820

Males

3605

M18-39

3605

5K→10K

3.1 - 6.2 mi

Top 17%
×5stories
+79ft-138ft

Overall

4906

Males

4582

M18-39

4582

10K→15K

6.2 - 9.3 mi

Top 13%
×3stories
+67ft-78ft

Overall

3820

Males

3605

M18-39

3605

15K→20K

9.3 - 12.4 mi

Top 20%
×5stories
+106ft-86ft

Overall

5548

Males

5065

M18-39

5065

20K→Half

12.4 - 13.1 mi

Top 14%
×2stories
+19ft-37ft

Overall

3889

Males

3669

M18-39

3669

Half→25K

13.1 - 15.5 mi

Top 25%
×4stories
+66ft-88ft

Overall

7097

Males

6187

M18-39

6187

25K→30K

15.5 - 18.6 mi

Top 21%
×9stories
+181ft-148ft

Overall

5928

Males

5263

M18-39

5263

30K→20M

18.6 - 20.0 mi

Top 20%
×5stories
+64ft-50ft

Overall

5700

Males

4980

M18-39

4980

20M→21M

20.0 - 21.0 mi

Top 23%
×8stories
+106ft-24ft

Overall

6673

Males

5484

M18-39

5484

21M→35K

21.0 - 21.8 mi

Top 37%
×7stories
+17ft-86ft

Overall

10399

Males

7553

M18-39

7553

35K→23M

21.8 - 23.0 mi

Top 24%
×5stories
+23ft-63ft

Overall

6890

Males

5524

M18-39

5524

23M→24M

23.0 - 24.0 mi

Top 28%
×6stories
+12ft-82ft

Overall

8026

Males

6121

M18-39

6121

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

7156

Males

5517

M18-39

5517

40K→25.2M

24.9 - 25.2 mi

Top 34%
×1story
+13ft-16ft

Overall

9630

Males

6749

M18-39

6749

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2stories
+22ft-21ft

Overall

7934

Males

5868

M18-39

5868

Passing Analysis

Category:
Athletes Passed
1252
Passed By
1954
Net Change
-702
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4914
5K → 10K196153+43#4914#4871
10K → 15K4064+402#4871#4469
15K → 20K68267-199#4469#4668
20K → Half591+58#4668#4610
Half → 25K37480-443#4610#5053
25K → 30K121297-176#5053#5229
30K → 20M64105-41#5229#5270
20M → 21M54142-88#5270#5358
21M → 35K15188-173#5358#5531
35K → 23M8681+5#5531#5526
23M → 24M4576-31#5526#5557
24M → 40K4353-10#5557#5567
40K → 25.2M2237-15#5567#5582
25.2M → Finish3670-34#5582#5616
TOTALS12521954-702
📊

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