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BOSTON MARATHON 2025

Jacek Mikulski

Bib: 10652•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 43%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 46%
Division (M50-54)
#0 / 1996
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:44
Rank: #10528
Start → 5K
22:44 | 7:19/mi
10K· 6.21 mi
45:38
Rank: #10713 (-185)
5K → 10K
22:54 | 7:22/mi
15K· 9.32 mi
1:09:40
Rank: #11751 (-1038)
10K → 15K
24:02 | 7:44/mi
20K· 12.43 mi
1:33:34
Rank: #11885 (-134)
15K → 20K
23:54 | 7:42/mi
Half· 13.11 mi
1:38:55
Rank: #12035 (-150)
20K → Half
5:21 | 7:50/mi
25K· 15.53 mi
1:58:11
Rank: #12253 (-218)
Half → 25K
19:16 | 7:57/mi
30K· 18.64 mi
2:23:41
Rank: #12334 (-81)
25K → 30K
25:30 | 8:12/mi
20M
2:35:16
Rank: #12425 (-91)
30K → 20M
11:35 | 8:31/mi
21M
2:44:03
Rank: #12397 (+28)
20M → 21M
8:47 | 8:47/mi
35K· 21.75 mi
2:50:08
Rank: #12398 (-1)
21M → 35K
6:05 | 8:08/mi
23M
3:00:49
Rank: #12452 (-54)
35K → 23M
10:41 | 8:32/mi
24M
3:09:14
Rank: #12518 (-66)
23M → 24M
8:25 | 8:25/mi
40K· 24.85 mi
3:16:28
Rank: #12510 (+8)
24M → 40K
7:14 | 8:28/mi
25.2M
3:19:33
Rank: #12495 (+15)
40K → 25.2M
3:05 | 8:56/mi
Finish· 26.22 mi
3:27:16
Rank: #12350 (+145)
25.2M → Finish
7:43 | 7:34/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:55
Pace7:33 /mi
2nd Half
Distance13.11 mi
Time1:48:21
Pace8:16 /mi
📊Positive Split: 9.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:3122:447:1922:44
7:19
-
10K
6.21 mi11:11:2545:387:2122:54
7:22
+0:03
15K
9.32 mi11:35:271:09:407:2824:02
7:44
+0:22
20K
12.43 mi11:59:211:33:347:3223:54
7:42
-0:02
Half
13.11 mi12:04:421:38:557:335:21
7:50
+0:08
25K
15.53 mi12:23:581:58:117:3619:16
7:57
+0:07
30K
18.64 mi12:49:282:23:417:4225:30
8:12
+0:15
20M
20.00 mi13:01:032:35:167:4611:35
8:31
+0:19
21M
21.00 mi13:09:502:44:037:498:47
8:47
+0:16
35K
21.75 mi13:15:552:50:087:496:05
8:08
-0:39
23M
23.00 mi13:26:363:00:497:5210:41
8:32
+0:24
24M
24.00 mi13:35:013:09:147:538:25
8:25
-0:07
40K
24.85 mi13:42:153:16:287:547:14
8:28
+0:03
25.2M
25.20 mi13:45:203:19:337:553:05
8:56
+0:28
Finish
26.22 mi13:53:033:27:167:557:43
7:34
-1:22

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

7:19 /mi

Average Pace

7:55 /mi

Slowest Pace

8:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:46:38

51% of race

Time at Steady Pace

50:51

25% of race

Time at Slower Pace

49:47

24% of race

Average Pace: 7:54 /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 mi10:48:3122:447:1922:44
7:19
#10528
10K
6.21 mi11:11:2545:387:2122:54
7:22
#10713
15K
9.32 mi11:35:271:09:407:2824:02
7:44
#11751
20K
12.43 mi11:59:211:33:347:3223:54
7:42
#11885
Half
13.11 mi12:04:421:38:557:335:21
7:50
#12035
25K
15.53 mi12:23:581:58:117:3619:16
7:57
#12253
30K
18.64 mi12:49:282:23:417:4225:30
8:12
#12334
20M
20.00 mi13:01:032:35:167:4611:35
8:31
#12425
21M
21.00 mi13:09:502:44:037:498:47
8:47
#12397
35K
21.75 mi13:15:552:50:087:496:05
8:08
#12398
23M
23.00 mi13:26:363:00:497:5210:41
8:32
#12452
24M
24.00 mi13:35:013:09:147:538:25
8:25
#12518
40K
24.85 mi13:42:153:16:287:547:14
8:28
#12510
25.2M
25.20 mi13:45:203:19:337:553:05
8:56
#12495
Finish
26.22 mi13:53:033:27:167:557:43
7:34
#12350
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi105288457845713808(Top 49%)9859(Top 61%)9859(Top 494%)
10K6.21 mi3.10 mi10713-1858523-668523-6610914(Top 38%)8621(Top 54%)8621(Top 432%)
15K9.32 mi3.11 mi11751-10389025-5029025-50213808(Top 49%)9859(Top 61%)9859(Top 494%)
20K12.43 mi3.11 mi11885-1349043-189043-1812332(Top 43%)9113(Top 57%)9113(Top 457%)
Half13.11 mi0.68 mi12035-1509106-639106-6314522(Top 51%)10103(Top 63%)10103(Top 506%)
25K15.53 mi2.42 mi12253-2189170-649170-6413461(Top 47%)9501(Top 59%)9501(Top 476%)
30K18.64 mi3.11 mi12334-819127+439127+4312871(Top 45%)9078(Top 56%)9078(Top 455%)
20M20.00 mi1.36 mi12425-919129-29129-213920(Top 49%)9404(Top 58%)9404(Top 471%)
21M21.00 mi1.00 mi12397+289079+509079+5012173(Top 43%)8449(Top 52%)8449(Top 423%)
35K21.75 mi0.75 mi12398-19056+239056+2313108(Top 46%)8844(Top 55%)8844(Top 443%)
23M23.00 mi1.25 mi12452-549042+149042+1413496(Top 48%)8932(Top 55%)8932(Top 447%)
24M24.00 mi1.00 mi12518-669056-149056-1413967(Top 49%)9117(Top 57%)9117(Top 457%)
40K24.85 mi0.85 mi12510+89016+409016+4013159(Top 46%)8598(Top 53%)8598(Top 431%)
25.2M25.20 mi0.35 mi12495+158994+228994+2211427(Top 40%)7687(Top 48%)7687(Top 385%)
Finish26.22 mi1.02 mi12350+1458885+1098885+1099723(Top 34%)6834(Top 42%)6834(Top 342%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21stories
+97ft-345ft

Overall

13808

Males

9859

M50-54

9859

5K→10K

3.1 - 6.2 mi

Top 38%
×5stories
+79ft-138ft

Overall

10914

Males

8621

M50-54

8621

10K→15K

6.2 - 9.3 mi

Top 49%
×3stories
+67ft-78ft

Overall

13808

Males

9859

M50-54

9859

15K→20K

9.3 - 12.4 mi

Top 43%
×5stories
+106ft-86ft

Overall

12332

Males

9113

M50-54

9113

20K→Half

12.4 - 13.1 mi

Top 51%
×2stories
+19ft-37ft

Overall

14522

Males

10103

M50-54

10103

Half→25K

13.1 - 15.5 mi

Top 47%
×4stories
+66ft-88ft

Overall

13461

Males

9501

M50-54

9501

25K→30K

15.5 - 18.6 mi

Top 45%
×9stories
+181ft-148ft

Overall

12871

Males

9078

M50-54

9078

30K→20M

18.6 - 20.0 mi

Top 49%
×5stories
+64ft-50ft

Overall

13920

Males

9404

M50-54

9404

20M→21M

20.0 - 21.0 mi

Top 43%
×8stories
+106ft-24ft

Overall

12173

Males

8449

M50-54

8449

21M→35K

21.0 - 21.8 mi

Top 46%
×7stories
+17ft-86ft

Overall

13108

Males

8844

M50-54

8844

35K→23M

21.8 - 23.0 mi

Top 48%
×5stories
+23ft-63ft

Overall

13496

Males

8932

M50-54

8932

23M→24M

23.0 - 24.0 mi

Top 49%
×6stories
+12ft-82ft

Overall

13967

Males

9117

M50-54

9117

24M→40K

24.0 - 24.9 mi

Top 46%
×1story
+6ft-20ft

Overall

13159

Males

8598

M50-54

8598

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

11427

Males

7687

M50-54

7687

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2stories
+22ft-21ft

Overall

9723

Males

6834

M50-54

6834

Passing Analysis

Category:
Athletes Passed
1403
Passed By
3225
Net Change
-1822
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10528
5K → 10K175360-185#10528#10713
10K → 15K341072-1038#10713#11751
15K → 20K151285-134#11751#11885
20K → Half10160-150#11885#12035
Half → 25K101319-218#12035#12253
25K → 30K218299-81#12253#12334
30K → 20M96187-91#12334#12425
20M → 21M11688+28#12425#12397
21M → 35K6465-1#12397#12398
35K → 23M94148-54#12398#12452
23M → 24M60126-66#12452#12518
24M → 40K7466+8#12518#12510
40K → 25.2M4328+15#12510#12495
25.2M → Finish16722+145#12495#12350
TOTALS14033225-1822
📊

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