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BOSTON MARATHON 2025

Jan Kwiatkowski

Bib: 7368•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
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
27:11
Rank: #21232
Start → 5K
27:11 | 8:45/mi
10K· 6.21 mi
53:33
Rank: #20483 (+749)
5K → 10K
26:22 | 8:29/mi
15K· 9.32 mi
1:19:21
Rank: #19756 (+727)
10K → 15K
25:48 | 8:18/mi
20K· 12.43 mi
1:45:04
Rank: #18976 (+780)
15K → 20K
25:43 | 8:17/mi
Half· 13.11 mi
1:50:28
Rank: #18819 (+157)
20K → Half
5:24 | 7:55/mi
25K· 15.53 mi
2:10:36
Rank: #18315 (+504)
Half → 25K
20:08 | 8:18/mi
30K· 18.64 mi
2:37:37
Rank: #17822 (+493)
25K → 30K
27:01 | 8:42/mi
20M
2:49:39
Rank: #17652 (+170)
30K → 20M
12:02 | 8:51/mi
21M
2:59:13
Rank: #17571 (+81)
20M → 21M
9:34 | 9:34/mi
35K· 21.75 mi
3:05:51
Rank: #17576 (-5)
21M → 35K
6:38 | 8:52/mi
23M
3:17:02
Rank: #17448 (+128)
35K → 23M
11:11 | 8:56/mi
24M
3:25:44
Rank: #17366 (+82)
23M → 24M
8:42 | 8:42/mi
40K· 24.85 mi
3:33:01
Rank: #17214 (+152)
24M → 40K
7:17 | 8:31/mi
25.2M
3:36:14
Rank: #17145 (+69)
40K → 25.2M
3:13 | 9:20/mi
Finish· 26.22 mi
3:44:51
Rank: #17097 (+48)
25.2M → Finish
8:37 | 8:27/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:28
Pace8:26 /mi
2nd Half
Distance13.11 mi
Time1:54:23
Pace8:44 /mi
📊Positive Split: 3.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:34:0427:118:4527:11
8:45
-
10K
6.21 mi11:00:2653:338:3726:22
8:29
-0:16
15K
9.32 mi11:26:141:19:218:3125:48
8:18
-0:11
20K
12.43 mi11:51:571:45:048:2725:43
8:17
-0:01
Half
13.11 mi11:57:211:50:288:265:24
7:55
-0:22
25K
15.53 mi12:17:292:10:368:2420:08
8:18
+0:23
30K
18.64 mi12:44:302:37:378:2727:01
8:42
+0:24
20M
20.00 mi12:56:322:49:398:2912:02
8:51
+0:09
21M
21.00 mi13:06:062:59:138:329:34
9:34
+0:43
35K
21.75 mi13:12:443:05:518:336:38
8:52
-0:42
23M
23.00 mi13:23:553:17:028:3411:11
8:56
+0:04
24M
24.00 mi13:32:373:25:448:348:42
8:42
-0:14
40K
24.85 mi13:39:543:33:018:347:17
8:31
-0:11
25.2M
25.20 mi13:43:073:36:148:353:13
9:20
+0:49
Finish
26.22 mi13:51:443:44:518:358:37
8:27
-0:53

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

7:55 /mi

Average Pace

8:35 /mi

Slowest Pace

9:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:52:02

50% of race

Time at Steady Pace

1:28:51

40% of race

Time at Slower Pace

23:58

11% of race

Average Pace: 8:35 /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 mi10:34:0427:118:4527:11
8:45
#21232
10K
6.21 mi11:00:2653:338:3726:22
8:29
#20483
15K
9.32 mi11:26:141:19:218:3125:48
8:18
#19756
20K
12.43 mi11:51:571:45:048:2725:43
8:17
#18976
Half
13.11 mi11:57:211:50:288:265:24
7:55
#18819
25K
15.53 mi12:17:292:10:368:2420:08
8:18
#18315
30K
18.64 mi12:44:302:37:378:2727:01
8:42
#17822
20M
20.00 mi12:56:322:49:398:2912:02
8:51
#17652
21M
21.00 mi13:06:062:59:138:329:34
9:34
#17571
35K
21.75 mi13:12:443:05:518:336:38
8:52
#17576
23M
23.00 mi13:23:553:17:028:3411:11
8:56
#17448
24M
24.00 mi13:32:373:25:448:348:42
8:42
#17366
40K
24.85 mi13:39:543:33:018:347:17
8:31
#17214
25.2M
25.20 mi13:43:073:36:148:353:13
9:20
#17145
Finish
26.22 mi13:51:443:44:518:358:37
8:27
#17097
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi21232129631296318071(Top 64%)11655(Top 72%)11655(Top 519%)
10K6.21 mi3.10 mi20483+74912660+30312660+30319710(Top 69%)12343(Top 77%)12343(Top 549%)
15K9.32 mi3.11 mi19756+72712373+28712373+28718071(Top 64%)11655(Top 72%)11655(Top 519%)
20K12.43 mi3.11 mi18976+78012030+34312030+34316793(Top 59%)11082(Top 69%)11082(Top 493%)
Half13.11 mi0.68 mi18819+15711960+7011960+7015195(Top 53%)10441(Top 65%)10441(Top 465%)
25K15.53 mi2.42 mi18315+50411730+23011730+23015938(Top 56%)10616(Top 66%)10616(Top 472%)
30K18.64 mi3.11 mi17822+49311470+26011470+26015979(Top 56%)10488(Top 65%)10488(Top 467%)
20M20.00 mi1.36 mi17652+17011364+10611364+10615957(Top 56%)10350(Top 64%)10350(Top 461%)
21M21.00 mi1.00 mi17571+8111314+5011314+5016364(Top 58%)10414(Top 65%)10414(Top 463%)
35K21.75 mi0.75 mi17576-511295+1911295+1917573(Top 62%)10851(Top 67%)10851(Top 483%)
23M23.00 mi1.25 mi17448+12811202+9311202+9315861(Top 56%)10009(Top 62%)10009(Top 445%)
24M24.00 mi1.00 mi17366+8211146+5611146+5615739(Top 55%)9935(Top 62%)9935(Top 442%)
40K24.85 mi0.85 mi17214+15211054+9211054+9213552(Top 48%)8796(Top 55%)8796(Top 391%)
25.2M25.20 mi0.35 mi17145+6911020+3411020+3413587(Top 48%)8757(Top 54%)8757(Top 390%)
Finish26.22 mi1.02 mi17097+4810978+4210978+4215924(Top 56%)9906(Top 62%)9906(Top 441%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21stories
+97ft-345ft

Overall

18071

Males

11655

M40-44

11655

5K→10K

3.1 - 6.2 mi

Top 69%
×5stories
+79ft-138ft

Overall

19710

Males

12343

M40-44

12343

10K→15K

6.2 - 9.3 mi

Top 64%
×3stories
+67ft-78ft

Overall

18071

Males

11655

M40-44

11655

15K→20K

9.3 - 12.4 mi

Top 59%
×5stories
+106ft-86ft

Overall

16793

Males

11082

M40-44

11082

20K→Half

12.4 - 13.1 mi

Top 53%
×2stories
+19ft-37ft

Overall

15195

Males

10441

M40-44

10441

Half→25K

13.1 - 15.5 mi

Top 56%
×4stories
+66ft-88ft

Overall

15938

Males

10616

M40-44

10616

25K→30K

15.5 - 18.6 mi

Top 56%
×9stories
+181ft-148ft

Overall

15979

Males

10488

M40-44

10488

30K→20M

18.6 - 20.0 mi

Top 56%
×5stories
+64ft-50ft

Overall

15957

Males

10350

M40-44

10350

20M→21M

20.0 - 21.0 mi

Top 58%
×8stories
+106ft-24ft

Overall

16364

Males

10414

M40-44

10414

21M→35K

21.0 - 21.8 mi

Top 62%
×7stories
+17ft-86ft

Overall

17573

Males

10851

M40-44

10851

35K→23M

21.8 - 23.0 mi

Top 56%
×5stories
+23ft-63ft

Overall

15861

Males

10009

M40-44

10009

23M→24M

23.0 - 24.0 mi

Top 55%
×6stories
+12ft-82ft

Overall

15739

Males

9935

M40-44

9935

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

13552

Males

8796

M40-44

8796

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

13587

Males

8757

M40-44

8757

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2stories
+22ft-21ft

Overall

15924

Males

9906

M40-44

9906

Passing Analysis

Category:
Athletes Passed
4585
Passed By
450
Net Change
+4135
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21232
5K → 10K82879+749#21232#20483
10K → 15K7369+727#20483#19756
15K → 20K79010+780#19756#18976
20K → Half1592+157#18976#18819
Half → 25K5051+504#18819#18315
25K → 30K52734+493#18315#17822
30K → 20M20232+170#17822#17652
20M → 21M14463+81#17652#17571
21M → 35K6368-5#17571#17576
35K → 23M17749+128#17576#17448
23M → 24M12139+82#17448#17366
24M → 40K1597+152#17366#17214
40K → 25.2M8011+69#17214#17145
25.2M → Finish9446+48#17145#17097
TOTALS4585450+4135
📊

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