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BOSTON MARATHON 2025

Peter Johan Blomster

Bib: 19044•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M55-59)
#0 / 1648
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:45
Rank: #20507
Start → 5K
26:45 | 8:37/mi
10K· 6.21 mi
55:25
Rank: #22042 (-1535)
5K → 10K
28:40 | 9:14/mi
15K· 9.32 mi
1:22:53
Rank: #21777 (+265)
10K → 15K
27:28 | 8:50/mi
20K· 12.43 mi
1:50:59
Rank: #21604 (+173)
15K → 20K
28:06 | 9:03/mi
Half· 13.11 mi
1:57:12
Rank: #21641 (-37)
20K → Half
6:13 | 9:07/mi
25K· 15.53 mi
2:19:39
Rank: #21508 (+133)
Half → 25K
22:27 | 9:16/mi
30K· 18.64 mi
2:49:00
Rank: #21175 (+333)
25K → 30K
29:21 | 9:27/mi
20M
3:02:25
Rank: #21119 (+56)
30K → 20M
13:25 | 9:52/mi
21M
3:13:18
Rank: #21137 (-18)
20M → 21M
10:53 | 10:53/mi
35K· 21.75 mi
3:21:07
Rank: #21240 (-103)
21M → 35K
7:49 | 10:27/mi
23M
3:34:23
Rank: #21318 (-78)
35K → 23M
13:16 | 10:36/mi
24M
3:45:19
Rank: #21470 (-152)
23M → 24M
10:56 | 10:56/mi
40K· 24.85 mi
3:54:51
Rank: #21558 (-88)
24M → 40K
9:32 | 11:09/mi
25.2M
3:59:06
Rank: #21601 (-43)
40K → 25.2M
4:15 | 12:19/mi
Finish· 26.22 mi
4:09:20
Rank: #21647 (-46)
25.2M → Finish
10:14 | 10:03/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:12
Pace8:56 /mi
2nd Half
Distance13.11 mi
Time2:12:08
Pace10:05 /mi
📊Positive Split: 12.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:5926:458:3726:45
8:37
-
10K
6.21 mi11:46:3955:258:5528:40
9:14
+0:37
15K
9.32 mi12:14:071:22:538:5427:28
8:50
-0:24
20K
12.43 mi12:42:131:50:598:5628:06
9:03
+0:13
Half
13.11 mi12:48:261:57:128:566:13
9:07
+0:04
25K
15.53 mi13:10:532:19:398:5922:27
9:16
+0:09
30K
18.64 mi13:40:142:49:009:0429:21
9:27
+0:11
20M
20.00 mi13:53:393:02:259:0713:25
9:52
+0:25
21M
21.00 mi14:04:323:13:189:1210:53
10:53
+1:01
35K
21.75 mi14:12:213:21:079:157:49
10:27
-0:26
23M
23.00 mi14:25:373:34:239:1913:16
10:36
+0:09
24M
24.00 mi14:36:333:45:199:2310:56
10:56
+0:20
40K
24.85 mi14:46:053:54:519:279:32
11:09
+0:13
25.2M
25.20 mi14:50:203:59:069:294:15
12:19
+1:10
Finish
26.22 mi15:00:344:09:209:3110:14
10:03
-2:16

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

8:37 /mi

Average Pace

9:31 /mi

Slowest Pace

12:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:19:39

56% of race

Time at Steady Pace

53:00

21% of race

Time at Slower Pace

56:41

23% of race

Average Pace: 9:31 /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 mi11:17:5926:458:3726:45
8:37
#20507
10K
6.21 mi11:46:3955:258:5528:40
9:14
#22042
15K
9.32 mi12:14:071:22:538:5427:28
8:50
#21777
20K
12.43 mi12:42:131:50:598:5628:06
9:03
#21604
Half
13.11 mi12:48:261:57:128:566:13
9:07
#21641
25K
15.53 mi13:10:532:19:398:5922:27
9:16
#21508
30K
18.64 mi13:40:142:49:009:0429:21
9:27
#21175
20M
20.00 mi13:53:393:02:259:0713:25
9:52
#21119
21M
21.00 mi14:04:323:13:189:1210:53
10:53
#21137
35K
21.75 mi14:12:213:21:079:157:49
10:27
#21240
23M
23.00 mi14:25:373:34:239:1913:16
10:36
#21318
24M
24.00 mi14:36:333:45:199:2310:56
10:56
#21470
40K
24.85 mi14:46:053:54:519:279:32
11:09
#21558
25.2M
25.20 mi14:50:203:59:069:294:15
12:19
#21601
Finish
26.22 mi15:00:344:09:209:3110:14
10:03
#21647
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi20507126421264221231(Top 75%)13047(Top 81%)13047(Top 792%)
10K6.21 mi3.10 mi22042-153513345-70313345-70323295(Top 82%)13941(Top 87%)13941(Top 846%)
15K9.32 mi3.11 mi21777+26513233+11213233+11221231(Top 75%)13047(Top 81%)13047(Top 792%)
20K12.43 mi3.11 mi21604+17313163+7013163+7021194(Top 75%)12982(Top 81%)12982(Top 788%)
Half13.11 mi0.68 mi21641-3713179-1613179-1622235(Top 78%)13436(Top 83%)13436(Top 815%)
25K15.53 mi2.42 mi21508+13313122+5713122+5721006(Top 74%)12849(Top 80%)12849(Top 780%)
30K18.64 mi3.11 mi21175+33312937+18512937+18519730(Top 69%)12167(Top 76%)12167(Top 738%)
20M20.00 mi1.36 mi21119+5612888+4912888+4920523(Top 72%)12376(Top 77%)12376(Top 751%)
21M21.00 mi1.00 mi21137-1812887+112887+121074(Top 74%)12538(Top 78%)12538(Top 761%)
35K21.75 mi0.75 mi21240-10312923-3612923-3623046(Top 81%)13410(Top 83%)13410(Top 814%)
23M23.00 mi1.25 mi21318-7812929-612929-622251(Top 78%)12994(Top 81%)12994(Top 788%)
24M24.00 mi1.00 mi21470-15212980-5112980-5123839(Top 84%)13738(Top 85%)13738(Top 834%)
40K24.85 mi0.85 mi21558-8812998-1812998-1823449(Top 83%)13471(Top 84%)13471(Top 817%)
25.2M25.20 mi0.35 mi21601-4312999-112999-123838(Top 84%)13683(Top 85%)13683(Top 830%)
Finish26.22 mi1.02 mi21647-4613003-413003-423050(Top 81%)13301(Top 83%)13301(Top 807%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21stories
+97ft-345ft

Overall

21231

Males

13047

M55-59

13047

5K→10K

3.1 - 6.2 mi

Top 82%
×5stories
+79ft-138ft

Overall

23295

Males

13941

M55-59

13941

10K→15K

6.2 - 9.3 mi

Top 75%
×3stories
+67ft-78ft

Overall

21231

Males

13047

M55-59

13047

15K→20K

9.3 - 12.4 mi

Top 75%
×5stories
+106ft-86ft

Overall

21194

Males

12982

M55-59

12982

20K→Half

12.4 - 13.1 mi

Top 78%
×2stories
+19ft-37ft

Overall

22235

Males

13436

M55-59

13436

Half→25K

13.1 - 15.5 mi

Top 74%
×4stories
+66ft-88ft

Overall

21006

Males

12849

M55-59

12849

25K→30K

15.5 - 18.6 mi

Top 69%
×9stories
+181ft-148ft

Overall

19730

Males

12167

M55-59

12167

30K→20M

18.6 - 20.0 mi

Top 72%
×5stories
+64ft-50ft

Overall

20523

Males

12376

M55-59

12376

20M→21M

20.0 - 21.0 mi

Top 74%
×8stories
+106ft-24ft

Overall

21074

Males

12538

M55-59

12538

21M→35K

21.0 - 21.8 mi

Top 81%
×7stories
+17ft-86ft

Overall

23046

Males

13410

M55-59

13410

35K→23M

21.8 - 23.0 mi

Top 78%
×5stories
+23ft-63ft

Overall

22251

Males

12994

M55-59

12994

23M→24M

23.0 - 24.0 mi

Top 84%
×6stories
+12ft-82ft

Overall

23839

Males

13738

M55-59

13738

24M→40K

24.0 - 24.9 mi

Top 83%
×1story
+6ft-20ft

Overall

23449

Males

13471

M55-59

13471

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

23838

Males

13683

M55-59

13683

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2stories
+22ft-21ft

Overall

23050

Males

13301

M55-59

13301

Passing Analysis

Category:
Athletes Passed
1652
Passed By
2792
Net Change
-1140
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20507
5K → 10K211556-1535#20507#22042
10K → 15K35186+265#22042#21777
15K → 20K281108+173#21777#21604
20K → Half1451-37#21604#21641
Half → 25K20976+133#21641#21508
25K → 30K37845+333#21508#21175
30K → 20M12670+56#21175#21119
20M → 21M82100-18#21119#21137
21M → 35K30133-103#21137#21240
35K → 23M72150-78#21240#21318
23M → 24M16168-152#21318#21470
24M → 40K27115-88#21470#21558
40K → 25.2M1356-43#21558#21601
25.2M → Finish3278-46#21601#21647
TOTALS16522792-1140
📊

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