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BOSTON MARATHON 2025

Maciej Ozimkiewicz

Bib: 7983•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 25%
Gender (Male)
#0 / 16105
Top 38%
Masters (Masters Men)
#0 / 10463
Top 24%
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
20:39
Rank: #4992
Start → 5K
20:39 | 6:39/mi
10K· 6.21 mi
41:11
Rank: #4719 (+273)
5K → 10K
20:32 | 6:37/mi
15K· 9.32 mi
1:01:48
Rank: #4635 (+84)
10K → 15K
20:37 | 6:38/mi
20K· 12.43 mi
1:22:56
Rank: #4762 (-127)
15K → 20K
21:08 | 6:48/mi
Half· 13.11 mi
1:27:34
Rank: #4829 (-67)
20K → Half
4:38 | 6:47/mi
25K· 15.53 mi
1:44:15
Rank: #4899 (-70)
Half → 25K
16:41 | 6:53/mi
30K· 18.64 mi
2:07:19
Rank: #5414 (-515)
25K → 30K
23:04 | 7:25/mi
20M
2:18:11
Rank: #5794 (-380)
30K → 20M
10:52 | 8:00/mi
21M
2:28:00
Rank: #6369 (-575)
20M → 21M
9:49 | 9:49/mi
35K· 21.75 mi
2:33:45
Rank: #6437 (-68)
21M → 35K
5:45 | 7:41/mi
23M
2:44:40
Rank: #6822 (-385)
35K → 23M
10:55 | 8:43/mi
24M
2:52:42
Rank: #6977 (-155)
23M → 24M
8:02 | 8:02/mi
40K· 24.85 mi
2:59:21
Rank: #6976 (+1)
24M → 40K
6:39 | 7:47/mi
25.2M
3:02:23
Rank: #7032 (-56)
40K → 25.2M
3:02 | 8:48/mi
Finish· 26.22 mi
3:10:05
Rank: #7086 (-54)
25.2M → Finish
7:42 | 7:33/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:34
Pace6:41 /mi
2nd Half
Distance13.11 mi
Time1:42:31
Pace7:49 /mi
📊Positive Split: 17.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:28:1020:396:3920:39
6:39
-
10K
6.21 mi10:48:4241:116:3820:32
6:37
-0:02
15K
9.32 mi11:09:191:01:486:3820:37
6:38
+0:01
20K
12.43 mi11:30:271:22:566:4021:08
6:48
+0:10
Half
13.11 mi11:35:051:27:346:414:38
6:47
-0:01
25K
15.53 mi11:51:461:44:156:4316:41
6:53
+0:06
30K
18.64 mi12:14:502:07:196:5023:04
7:25
+0:32
20M
20.00 mi12:25:422:18:116:5510:52
8:00
+0:35
21M
21.00 mi12:35:312:28:007:039:49
9:49
+1:49
35K
21.75 mi12:41:162:33:457:045:45
7:41
-2:08
23M
23.00 mi12:52:112:44:407:1010:55
8:43
+1:02
24M
24.00 mi13:00:132:52:427:128:02
8:02
-0:41
40K
24.85 mi13:06:522:59:217:136:39
7:47
-0:15
25.2M
25.20 mi13:09:543:02:237:143:02
8:48
+1:01
Finish
26.22 mi13:17:363:10:057:157:42
7:33
-1:15

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

6:37 /mi

Average Pace

7:15 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:15

55% of race

Time at Steady Pace

54:02

28% of race

Time at Slower Pace

31:48

17% of race

Average Pace: 7:15 /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 mi10:28:1020:396:3920:39
6:39
#4992
10K
6.21 mi10:48:4241:116:3820:32
6:37
#4719
15K
9.32 mi11:09:191:01:486:3820:37
6:38
#4635
20K
12.43 mi11:30:271:22:566:4021:08
6:48
#4762
Half
13.11 mi11:35:051:27:346:414:38
6:47
#4829
25K
15.53 mi11:51:461:44:156:4316:41
6:53
#4899
30K
18.64 mi12:14:502:07:196:5023:04
7:25
#5414
20M
20.00 mi12:25:422:18:116:5510:52
8:00
#5794
21M
21.00 mi12:35:312:28:007:039:49
9:49
#6369
35K
21.75 mi12:41:162:33:457:045:45
7:41
#6437
23M
23.00 mi12:52:112:44:407:1010:55
8:43
#6822
24M
24.00 mi13:00:132:52:427:128:02
8:02
#6977
40K
24.85 mi13:06:522:59:217:136:39
7:47
#6976
25.2M
25.20 mi13:09:543:02:237:143:02
8:48
#7032
Finish
26.22 mi13:17:363:10:057:157:42
7:33
#7086
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi4992466646664543(Top 16%)4254(Top 26%)4254(Top 189%)
10K6.21 mi3.10 mi4719+2734419+2474419+2474543(Top 16%)4257(Top 26%)4257(Top 189%)
15K9.32 mi3.11 mi4635+844341+784341+784543(Top 16%)4254(Top 26%)4254(Top 189%)
20K12.43 mi3.11 mi4762-1274443-1024443-1025314(Top 19%)4880(Top 30%)4880(Top 217%)
Half13.11 mi0.68 mi4829-674500-574500-576058(Top 21%)5479(Top 34%)5479(Top 244%)
25K15.53 mi2.42 mi4899-704552-524552-525508(Top 19%)4998(Top 31%)4998(Top 222%)
30K18.64 mi3.11 mi5414-5154967-4154967-4157189(Top 25%)6076(Top 38%)6076(Top 270%)
20M20.00 mi1.36 mi5794-3805264-2975264-29710391(Top 37%)7726(Top 48%)7726(Top 344%)
21M21.00 mi1.00 mi6369-5755695-4315695-43117514(Top 62%)10918(Top 68%)10918(Top 486%)
35K21.75 mi0.75 mi6437-685733-385733-389890(Top 35%)7290(Top 45%)7290(Top 324%)
23M23.00 mi1.25 mi6822-3855972-2395972-23914627(Top 51%)9444(Top 59%)9444(Top 420%)
24M24.00 mi1.00 mi6977-1556045-736045-7311435(Top 40%)7856(Top 49%)7856(Top 350%)
40K24.85 mi0.85 mi6976+16023+226023+228565(Top 30%)6272(Top 39%)6272(Top 279%)
25.2M25.20 mi0.35 mi7032-566039-166039-1610461(Top 37%)7153(Top 44%)7153(Top 318%)
Finish26.22 mi1.02 mi7086-546052-136052-139557(Top 34%)6729(Top 42%)6729(Top 299%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4543

Males

4254

M40-44

4254

5K→10K

3.1 - 6.2 mi

Top 16%
×5stories
+79ft-138ft

Overall

4543

Males

4257

M40-44

4257

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4543

Males

4254

M40-44

4254

15K→20K

9.3 - 12.4 mi

Top 19%
×5stories
+106ft-86ft

Overall

5314

Males

4880

M40-44

4880

20K→Half

12.4 - 13.1 mi

Top 21%
×2stories
+19ft-37ft

Overall

6058

Males

5479

M40-44

5479

Half→25K

13.1 - 15.5 mi

Top 19%
×4stories
+66ft-88ft

Overall

5508

Males

4998

M40-44

4998

25K→30K

15.5 - 18.6 mi

Top 25%
×9stories
+181ft-148ft

Overall

7189

Males

6076

M40-44

6076

30K→20M

18.6 - 20.0 mi

Top 37%
×5stories
+64ft-50ft

Overall

10391

Males

7726

M40-44

7726

20M→21M

20.0 - 21.0 mi

Top 62%
×8stories
+106ft-24ft

Overall

17514

Males

10918

M40-44

10918

21M→35K

21.0 - 21.8 mi

Top 35%
×7stories
+17ft-86ft

Overall

9890

Males

7290

M40-44

7290

35K→23M

21.8 - 23.0 mi

Top 51%
×5stories
+23ft-63ft

Overall

14627

Males

9444

M40-44

9444

23M→24M

23.0 - 24.0 mi

Top 40%
×6stories
+12ft-82ft

Overall

11435

Males

7856

M40-44

7856

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

8565

Males

6272

M40-44

6272

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

10461

Males

7153

M40-44

7153

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2stories
+22ft-21ft

Overall

9557

Males

6729

M40-44

6729

Passing Analysis

Category:
Athletes Passed
966
Passed By
3060
Net Change
-2094
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4992
5K → 10K33259+273#4992#4719
10K → 15K15874+84#4719#4635
15K → 20K88215-127#4635#4762
20K → Half673-67#4762#4829
Half → 25K86156-70#4829#4899
25K → 30K67582-515#4899#5414
30K → 20M12392-380#5414#5794
20M → 21M4579-575#5794#6369
21M → 35K2896-68#6369#6437
35K → 23M26411-385#6437#6822
23M → 24M36191-155#6822#6977
24M → 40K5756+1#6977#6976
40K → 25.2M1470-56#6976#7032
25.2M → Finish52106-54#7032#7086
TOTALS9663060-2094
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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