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BOSTON MARATHON 2025

Jaroslaw Sliwa

Bib: 14404•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 48%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
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
24:20
Rank: #15085
Start → 5K
24:20 | 7:50/mi
10K· 6.21 mi
49:14
Rank: #15887 (-802)
5K → 10K
24:54 | 8:01/mi
15K· 9.32 mi
1:13:37
Rank: #15473 (+414)
10K → 15K
24:23 | 7:51/mi
20K· 12.43 mi
1:38:34
Rank: #15383 (+90)
15K → 20K
24:57 | 8:02/mi
Half· 13.11 mi
1:43:59
Rank: #15363 (+20)
20K → Half
5:25 | 7:56/mi
25K· 15.53 mi
2:03:34
Rank: #15192 (+171)
Half → 25K
19:35 | 8:05/mi
30K· 18.64 mi
2:29:43
Rank: #14971 (+221)
25K → 30K
26:09 | 8:25/mi
20M
2:41:11
Rank: #14817 (+154)
30K → 20M
11:28 | 8:26/mi
21M
2:50:28
Rank: #14790 (+27)
20M → 21M
9:17 | 9:17/mi
35K· 21.75 mi
2:56:21
Rank: #14643 (+147)
21M → 35K
5:53 | 7:52/mi
23M
3:06:12
Rank: #14304 (+339)
35K → 23M
9:51 | 7:52/mi
24M
3:13:56
Rank: #14060 (+244)
23M → 24M
7:44 | 7:44/mi
40K· 24.85 mi
3:20:39
Rank: #13824 (+236)
24M → 40K
6:43 | 7:51/mi
25.2M
3:23:46
Rank: #13783 (+41)
40K → 25.2M
3:07 | 9:02/mi
Finish· 26.22 mi
3:32:01
Rank: #13756 (+27)
25.2M → Finish
8:15 | 8:06/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:59
Pace7:56 /mi
2nd Half
Distance13.11 mi
Time1:48:02
Pace8:14 /mi
📊Positive Split: 3.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:1624:207:5024:20
7:50
-
10K
6.21 mi11:20:1049:147:5524:54
8:01
+0:11
15K
9.32 mi11:44:331:13:377:5424:23
7:51
-0:10
20K
12.43 mi12:09:301:38:347:5624:57
8:02
+0:11
Half
13.11 mi12:14:551:43:597:565:25
7:56
-0:06
25K
15.53 mi12:34:302:03:347:5719:35
8:05
+0:09
30K
18.64 mi13:00:392:29:438:0226:09
8:25
+0:20
20M
20.00 mi13:12:072:41:118:0411:28
8:26
+0:01
21M
21.00 mi13:21:242:50:288:079:17
9:17
+0:51
35K
21.75 mi13:27:172:56:218:075:53
7:52
-1:25
23M
23.00 mi13:37:083:06:128:069:51
7:52
0:00
24M
24.00 mi13:44:523:13:568:057:44
7:44
-0:08
40K
24.85 mi13:51:353:20:398:046:43
7:51
+0:07
25.2M
25.20 mi13:54:423:23:468:053:07
9:02
+1:11
Finish
26.22 mi14:02:573:32:018:068:15
8:06
-0:56

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

7:44 /mi

Average Pace

8:06 /mi

Slowest Pace

9:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

7:44

4% of race

Time at Steady Pace

2:34:16

73% of race

Time at Slower Pace

50:01

24% of race

Average Pace: 8:05 /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 mi10:55:1624:207:5024:20
7:50
#15085
10K
6.21 mi11:20:1049:147:5524:54
8:01
#15887
15K
9.32 mi11:44:331:13:377:5424:23
7:51
#15473
20K
12.43 mi12:09:301:38:347:5624:57
8:02
#15383
Half
13.11 mi12:14:551:43:597:565:25
7:56
#15363
25K
15.53 mi12:34:302:03:347:5719:35
8:05
#15192
30K
18.64 mi13:00:392:29:438:0226:09
8:25
#14971
20M
20.00 mi13:12:072:41:118:0411:28
8:26
#14817
21M
21.00 mi13:21:242:50:288:079:17
9:17
#14790
35K
21.75 mi13:27:172:56:218:075:53
7:52
#14643
23M
23.00 mi13:37:083:06:128:069:51
7:52
#14304
24M
24.00 mi13:44:523:13:568:057:44
7:44
#14060
40K
24.85 mi13:51:353:20:398:046:43
7:51
#13824
25.2M
25.20 mi13:54:423:23:468:053:07
9:02
#13783
Finish
26.22 mi14:02:573:32:018:068:15
8:06
#13756
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi15085104551045514782(Top 52%)10275(Top 64%)10275(Top 515%)
10K6.21 mi3.10 mi15887-80210772-31710772-31716575(Top 58%)11057(Top 69%)11057(Top 554%)
15K9.32 mi3.11 mi15473+41410598+17410598+17414782(Top 52%)10275(Top 64%)10275(Top 515%)
20K12.43 mi3.11 mi15383+9010538+6010538+6015139(Top 53%)10379(Top 64%)10379(Top 520%)
Half13.11 mi0.68 mi15363+2010530+810530+815337(Top 54%)10474(Top 65%)10474(Top 525%)
25K15.53 mi2.42 mi15192+17110430+10010430+10014465(Top 51%)9958(Top 62%)9958(Top 499%)
30K18.64 mi3.11 mi14971+22110273+15710273+15714229(Top 50%)9694(Top 60%)9694(Top 486%)
20M20.00 mi1.36 mi14817+15410183+9010183+9013372(Top 47%)9158(Top 57%)9158(Top 459%)
21M21.00 mi1.00 mi14790+2710144+3910144+3915041(Top 53%)9801(Top 61%)9801(Top 491%)
35K21.75 mi0.75 mi14643+14710071+7310071+7311284(Top 40%)8011(Top 50%)8011(Top 401%)
23M23.00 mi1.25 mi14304+3399879+1929879+1929057(Top 32%)6757(Top 42%)6757(Top 339%)
24M24.00 mi1.00 mi14060+2449723+1569723+1569344(Top 33%)6838(Top 42%)6838(Top 343%)
40K24.85 mi0.85 mi13824+2369587+1369587+1369180(Top 32%)6627(Top 41%)6627(Top 332%)
25.2M25.20 mi0.35 mi13783+419560+279560+2711975(Top 42%)7986(Top 50%)7986(Top 400%)
Finish26.22 mi1.02 mi13756+279529+319529+3113546(Top 48%)8792(Top 55%)8792(Top 440%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21stories
+97ft-345ft

Overall

14782

Males

10275

M50-54

10275

5K→10K

3.1 - 6.2 mi

Top 58%
×5stories
+79ft-138ft

Overall

16575

Males

11057

M50-54

11057

10K→15K

6.2 - 9.3 mi

Top 52%
×3stories
+67ft-78ft

Overall

14782

Males

10275

M50-54

10275

15K→20K

9.3 - 12.4 mi

Top 53%
×5stories
+106ft-86ft

Overall

15139

Males

10379

M50-54

10379

20K→Half

12.4 - 13.1 mi

Top 54%
×2stories
+19ft-37ft

Overall

15337

Males

10474

M50-54

10474

Half→25K

13.1 - 15.5 mi

Top 51%
×4stories
+66ft-88ft

Overall

14465

Males

9958

M50-54

9958

25K→30K

15.5 - 18.6 mi

Top 50%
×9stories
+181ft-148ft

Overall

14229

Males

9694

M50-54

9694

30K→20M

18.6 - 20.0 mi

Top 47%
×5stories
+64ft-50ft

Overall

13372

Males

9158

M50-54

9158

20M→21M

20.0 - 21.0 mi

Top 53%
×8stories
+106ft-24ft

Overall

15041

Males

9801

M50-54

9801

21M→35K

21.0 - 21.8 mi

Top 40%
×7stories
+17ft-86ft

Overall

11284

Males

8011

M50-54

8011

35K→23M

21.8 - 23.0 mi

Top 32%
×5stories
+23ft-63ft

Overall

9057

Males

6757

M50-54

6757

23M→24M

23.0 - 24.0 mi

Top 33%
×6stories
+12ft-82ft

Overall

9344

Males

6838

M50-54

6838

24M→40K

24.0 - 24.9 mi

Top 32%
×1story
+6ft-20ft

Overall

9180

Males

6627

M50-54

6627

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11975

Males

7986

M50-54

7986

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2stories
+22ft-21ft

Overall

13546

Males

8792

M50-54

8792

Passing Analysis

Category:
Athletes Passed
2891
Passed By
1562
Net Change
+1329
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15085
5K → 10K96898-802#15085#15887
10K → 15K45945+414#15887#15473
15K → 20K240150+90#15473#15383
20K → Half4424+20#15383#15363
Half → 25K25584+171#15363#15192
25K → 30K354133+221#15192#14971
30K → 20M20147+154#14971#14817
20M → 21M12396+27#14817#14790
21M → 35K1569+147#14790#14643
35K → 23M3401+339#14643#14304
23M → 24M2506+244#14304#14060
24M → 40K2404+236#14060#13824
40K → 25.2M5312+41#13824#13783
25.2M → Finish8053+27#13783#13756
TOTALS28911562+1329
📊

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