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BOSTON MARATHON 2025

Jeroen Akerboom

Bib: 3653•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 28%
Gender (Male)
#0 / 16105
Top 41%
Masters (Masters Men)
#0 / 10463
Top 29%
Division (M40-44)
#0 / 2247
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:17
Rank: #4058
Start → 5K
20:17 | 6:32/mi
10K· 6.21 mi
41:16
Rank: #4842 (-784)
5K → 10K
20:59 | 6:45/mi
15K· 9.32 mi
1:02:44
Rank: #5538 (-696)
10K → 15K
21:28 | 6:55/mi
20K· 12.43 mi
1:23:58
Rank: #5539 (-1)
15K → 20K
21:14 | 6:50/mi
Half· 13.11 mi
1:28:43
Rank: #5654 (-115)
20K → Half
4:45 | 6:58/mi
25K· 15.53 mi
1:46:00
Rank: #5922 (-268)
Half → 25K
17:17 | 7:08/mi
30K· 18.64 mi
2:09:17
Rank: #6230 (-308)
25K → 30K
23:17 | 7:30/mi
20M
2:20:19
Rank: #6493 (-263)
30K → 20M
11:02 | 8:07/mi
21M
2:29:11
Rank: #6725 (-232)
20M → 21M
8:52 | 8:52/mi
35K· 21.75 mi
2:35:09
Rank: #6872 (-147)
21M → 35K
5:58 | 7:59/mi
23M
2:45:31
Rank: #7085 (-213)
35K → 23M
10:22 | 8:17/mi
24M
2:53:42
Rank: #7254 (-169)
23M → 24M
8:11 | 8:11/mi
40K· 24.85 mi
3:01:06
Rank: #7479 (-225)
24M → 40K
7:24 | 8:39/mi
25.2M
3:04:30
Rank: #7623 (-144)
40K → 25.2M
3:24 | 9:52/mi
Finish· 26.22 mi
3:13:25
Rank: #8039 (-416)
25.2M → Finish
8:55 | 8:45/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:43
Pace6:46 /mi
2nd Half
Distance13.11 mi
Time1:44:42
Pace7:59 /mi
📊Positive Split: 18.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:1420:176:3220:17
6:32
-
10K
6.21 mi10:44:1341:166:3820:59
6:45
+0:13
15K
9.32 mi11:05:411:02:446:4421:28
6:55
+0:10
20K
12.43 mi11:26:551:23:586:4521:14
6:50
-0:05
Half
13.11 mi11:31:401:28:436:464:45
6:58
+0:08
25K
15.53 mi11:48:571:46:006:4917:17
7:08
+0:10
30K
18.64 mi12:12:142:09:176:5623:17
7:30
+0:22
20M
20.00 mi12:23:162:20:197:0111:02
8:07
+0:37
21M
21.00 mi12:32:082:29:117:068:52
8:52
+0:45
35K
21.75 mi12:38:062:35:097:085:58
7:59
-0:53
23M
23.00 mi12:48:282:45:317:1210:22
8:17
+0:18
24M
24.00 mi12:56:392:53:427:148:11
8:11
-0:06
40K
24.85 mi13:04:033:01:067:177:24
8:39
+0:28
25.2M
25.20 mi13:07:273:04:307:193:24
9:52
+1:13
Finish
26.22 mi13:16:223:13:257:238:55
8:45
-1:07

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

6:32 /mi

Average Pace

7:23 /mi

Slowest Pace

9:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:09:17

67% of race

Time at Steady Pace

35:33

18% of race

Time at Slower Pace

28:35

15% of race

Average Pace: 7:23 /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 mi10:23:1420:176:3220:17
6:32
#4058
10K
6.21 mi10:44:1341:166:3820:59
6:45
#4842
15K
9.32 mi11:05:411:02:446:4421:28
6:55
#5538
20K
12.43 mi11:26:551:23:586:4521:14
6:50
#5539
Half
13.11 mi11:31:401:28:436:464:45
6:58
#5654
25K
15.53 mi11:48:571:46:006:4917:17
7:08
#5922
30K
18.64 mi12:12:142:09:176:5623:17
7:30
#6230
20M
20.00 mi12:23:162:20:197:0111:02
8:07
#6493
21M
21.00 mi12:32:082:29:117:068:52
8:52
#6725
35K
21.75 mi12:38:062:35:097:085:58
7:59
#6872
23M
23.00 mi12:48:282:45:317:1210:22
8:17
#7085
24M
24.00 mi12:56:392:53:427:148:11
8:11
#7254
40K
24.85 mi13:04:033:01:067:177:24
8:39
#7479
25.2M
25.20 mi13:07:273:04:307:193:24
9:52
#7623
Finish
26.22 mi13:16:223:13:257:238:55
8:45
#8039
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi4058382838287022(Top 25%)6265(Top 39%)6265(Top 279%)
10K6.21 mi3.10 mi4842-7844527-6994527-6995891(Top 21%)5392(Top 33%)5392(Top 240%)
15K9.32 mi3.11 mi5538-6965116-5895116-5897022(Top 25%)6265(Top 39%)6265(Top 279%)
20K12.43 mi3.11 mi5539-15104+125104+125654(Top 20%)5157(Top 32%)5157(Top 230%)
Half13.11 mi0.68 mi5654-1155193-895193-897288(Top 26%)6430(Top 40%)6430(Top 286%)
25K15.53 mi2.42 mi5922-2685394-2015394-2017152(Top 25%)6230(Top 39%)6230(Top 277%)
30K18.64 mi3.11 mi6230-3085614-2205614-2207698(Top 27%)6408(Top 40%)6408(Top 285%)
20M20.00 mi1.36 mi6493-2635808-1945808-19411208(Top 39%)8127(Top 50%)8127(Top 362%)
21M21.00 mi1.00 mi6725-2325958-1505958-15012668(Top 45%)8664(Top 54%)8664(Top 386%)
35K21.75 mi0.75 mi6872-1476049-916049-9112053(Top 42%)8333(Top 52%)8333(Top 371%)
23M23.00 mi1.25 mi7085-2136155-1066155-10611892(Top 42%)8174(Top 51%)8174(Top 364%)
24M24.00 mi1.00 mi7254-1696231-766231-7612420(Top 44%)8371(Top 52%)8371(Top 373%)
40K24.85 mi0.85 mi7479-2256340-1096340-10914341(Top 50%)9140(Top 57%)9140(Top 407%)
25.2M25.20 mi0.35 mi7623-1446419-796419-7916273(Top 57%)9983(Top 62%)9983(Top 444%)
Finish26.22 mi1.02 mi8039-4166654-2356654-23517736(Top 62%)10731(Top 67%)10731(Top 478%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 25%
×21stories
+97ft-345ft

Overall

7022

Males

6265

M40-44

6265

5K→10K

3.1 - 6.2 mi

Top 21%
×5stories
+79ft-138ft

Overall

5891

Males

5392

M40-44

5392

10K→15K

6.2 - 9.3 mi

Top 25%
×3stories
+67ft-78ft

Overall

7022

Males

6265

M40-44

6265

15K→20K

9.3 - 12.4 mi

Top 20%
×5stories
+106ft-86ft

Overall

5654

Males

5157

M40-44

5157

20K→Half

12.4 - 13.1 mi

Top 26%
×2stories
+19ft-37ft

Overall

7288

Males

6430

M40-44

6430

Half→25K

13.1 - 15.5 mi

Top 25%
×4stories
+66ft-88ft

Overall

7152

Males

6230

M40-44

6230

25K→30K

15.5 - 18.6 mi

Top 27%
×9stories
+181ft-148ft

Overall

7698

Males

6408

M40-44

6408

30K→20M

18.6 - 20.0 mi

Top 39%
×5stories
+64ft-50ft

Overall

11208

Males

8127

M40-44

8127

20M→21M

20.0 - 21.0 mi

Top 45%
×8stories
+106ft-24ft

Overall

12668

Males

8664

M40-44

8664

21M→35K

21.0 - 21.8 mi

Top 42%
×7stories
+17ft-86ft

Overall

12053

Males

8333

M40-44

8333

35K→23M

21.8 - 23.0 mi

Top 42%
×5stories
+23ft-63ft

Overall

11892

Males

8174

M40-44

8174

23M→24M

23.0 - 24.0 mi

Top 44%
×6stories
+12ft-82ft

Overall

12420

Males

8371

M40-44

8371

24M→40K

24.0 - 24.9 mi

Top 50%
×1story
+6ft-20ft

Overall

14341

Males

9140

M40-44

9140

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

16273

Males

9983

M40-44

9983

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2stories
+22ft-21ft

Overall

17736

Males

10731

M40-44

10731

Passing Analysis

Category:
Athletes Passed
528
Passed By
4509
Net Change
-3981
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4058
5K → 10K11795-784#4058#4842
10K → 15K23719-696#4842#5538
15K → 20K129130-1#5538#5539
20K → Half2117-115#5539#5654
Half → 25K78346-268#5654#5922
25K → 30K95403-308#5922#6230
30K → 20M37300-263#6230#6493
20M → 21M17249-232#6493#6725
21M → 35K23170-147#6725#6872
35K → 23M42255-213#6872#7085
23M → 24M35204-169#7085#7254
24M → 40K24249-225#7254#7479
40K → 25.2M7151-144#7479#7623
25.2M → Finish5421-416#7623#8039
TOTALS5284509-3981
📊

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