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BOSTON MARATHON 2025

Tomasz Kawka

Bib: 8997•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 23%
Gender (Male)
#0 / 16105
Top 36%
Masters (Masters Men)
#0 / 10463
Top 22%
Division (M45-49)
#0 / 2386
Top 31%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:26
Rank: #4412
Start → 5K
20:26 | 6:35/mi
10K· 6.21 mi
41:31
Rank: #5208 (-796)
5K → 10K
21:05 | 6:47/mi
15K· 9.32 mi
1:02:57
Rank: #5754 (-546)
10K → 15K
21:26 | 6:54/mi
20K· 12.43 mi
1:24:54
Rank: #6242 (-488)
15K → 20K
21:57 | 7:04/mi
Half· 13.11 mi
1:29:44
Rank: #6364 (-122)
20K → Half
4:50 | 7:05/mi
25K· 15.53 mi
1:47:16
Rank: #6612 (-248)
Half → 25K
17:32 | 7:14/mi
30K· 18.64 mi
2:10:22
Rank: #6617 (-5)
25K → 30K
23:06 | 7:26/mi
20M
2:20:38
Rank: #6582 (+35)
30K → 20M
10:16 | 7:33/mi
21M
2:28:40
Rank: #6564 (+18)
20M → 21M
8:02 | 8:02/mi
35K· 21.75 mi
2:34:17
Rank: #6585 (-21)
21M → 35K
5:37 | 7:30/mi
23M
2:43:44
Rank: #6526 (+59)
35K → 23M
9:27 | 7:33/mi
24M
2:51:07
Rank: #6496 (+30)
23M → 24M
7:23 | 7:23/mi
40K· 24.85 mi
2:57:34
Rank: #6456 (+40)
24M → 40K
6:27 | 7:33/mi
25.2M
3:00:57
Rank: #6602 (-146)
40K → 25.2M
3:23 | 9:49/mi
Finish· 26.22 mi
3:08:32
Rank: #6637 (-35)
25.2M → Finish
7:35 | 7:26/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:44
Pace6:51 /mi
2nd Half
Distance13.11 mi
Time1:38:48
Pace7:32 /mi
📊Positive Split: 10.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:45:4120:266:3520:26
6:35
-
10K
6.21 mi11:06:4641:316:4121:05
6:47
+0:12
15K
9.32 mi11:28:121:02:576:4521:26
6:54
+0:07
20K
12.43 mi11:50:091:24:546:5021:57
7:04
+0:10
Half
13.11 mi11:54:591:29:446:514:50
7:05
+0:01
25K
15.53 mi12:12:311:47:166:5417:32
7:14
+0:09
30K
18.64 mi12:35:372:10:227:0023:06
7:26
+0:12
20M
20.00 mi12:45:532:20:387:0210:16
7:33
+0:07
21M
21.00 mi12:53:552:28:407:058:02
8:02
+0:29
35K
21.75 mi12:59:322:34:177:065:37
7:30
-0:32
23M
23.00 mi13:08:592:43:447:079:27
7:33
+0:03
24M
24.00 mi13:16:222:51:077:087:23
7:23
-0:10
40K
24.85 mi13:22:492:57:347:096:27
7:33
+0:10
25.2M
25.20 mi13:26:123:00:577:113:23
9:49
+2:16
Finish
26.22 mi13:33:473:08:327:127:35
7:26
-2:23

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

6:35 /mi

Average Pace

7:12 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:24:54

45% of race

Time at Steady Pace

1:32:13

49% of race

Time at Slower Pace

11:25

6% of race

Average Pace: 7:11 /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 mi10:45:4120:266:3520:26
6:35
#4412
10K
6.21 mi11:06:4641:316:4121:05
6:47
#5208
15K
9.32 mi11:28:121:02:576:4521:26
6:54
#5754
20K
12.43 mi11:50:091:24:546:5021:57
7:04
#6242
Half
13.11 mi11:54:591:29:446:514:50
7:05
#6364
25K
15.53 mi12:12:311:47:166:5417:32
7:14
#6612
30K
18.64 mi12:35:372:10:227:0023:06
7:26
#6617
20M
20.00 mi12:45:532:20:387:0210:16
7:33
#6582
21M
21.00 mi12:53:552:28:407:058:02
8:02
#6564
35K
21.75 mi12:59:322:34:177:065:37
7:30
#6585
23M
23.00 mi13:08:592:43:447:079:27
7:33
#6526
24M
24.00 mi13:16:222:51:077:087:23
7:23
#6496
40K
24.85 mi13:22:492:57:347:096:27
7:33
#6456
25.2M
25.20 mi13:26:123:00:577:113:23
9:49
#6602
Finish
26.22 mi13:33:473:08:327:127:35
7:26
#6637
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi4412414941496945(Top 24%)6209(Top 39%)6209(Top 260%)
10K6.21 mi3.10 mi5208-7964844-6954844-6956247(Top 22%)5684(Top 35%)5684(Top 238%)
15K9.32 mi3.11 mi5754-5465293-4495293-4496945(Top 24%)6209(Top 39%)6209(Top 260%)
20K12.43 mi3.11 mi6242-4885675-3825675-3827290(Top 26%)6411(Top 40%)6411(Top 269%)
Half13.11 mi0.68 mi6364-1225767-925767-928127(Top 29%)6966(Top 43%)6966(Top 292%)
25K15.53 mi2.42 mi6612-2485958-1915958-1917812(Top 28%)6641(Top 41%)6641(Top 278%)
30K18.64 mi3.11 mi6617-55922+365922+367264(Top 26%)6129(Top 38%)6129(Top 257%)
20M20.00 mi1.36 mi6582+355869+535869+537377(Top 26%)6059(Top 38%)6059(Top 254%)
21M21.00 mi1.00 mi6564+185835+345835+347512(Top 26%)5977(Top 37%)5977(Top 251%)
35K21.75 mi0.75 mi6585-215834+15834+18636(Top 30%)6645(Top 41%)6645(Top 278%)
23M23.00 mi1.25 mi6526+595763+715763+716894(Top 24%)5528(Top 34%)5528(Top 232%)
24M24.00 mi1.00 mi6496+305727+365727+366926(Top 24%)5479(Top 34%)5479(Top 230%)
40K24.85 mi0.85 mi6456+405673+545673+547026(Top 25%)5444(Top 34%)5444(Top 228%)
25.2M25.20 mi0.35 mi6602-1465754-815754-8116042(Top 56%)9867(Top 61%)9867(Top 414%)
Finish26.22 mi1.02 mi6637-355747+75747+78754(Top 31%)6308(Top 39%)6308(Top 264%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 24%
×21stories
+97ft-345ft

Overall

6945

Males

6209

M45-49

6209

5K→10K

3.1 - 6.2 mi

Top 22%
×5stories
+79ft-138ft

Overall

6247

Males

5684

M45-49

5684

10K→15K

6.2 - 9.3 mi

Top 24%
×3stories
+67ft-78ft

Overall

6945

Males

6209

M45-49

6209

15K→20K

9.3 - 12.4 mi

Top 26%
×5stories
+106ft-86ft

Overall

7290

Males

6411

M45-49

6411

20K→Half

12.4 - 13.1 mi

Top 29%
×2stories
+19ft-37ft

Overall

8127

Males

6966

M45-49

6966

Half→25K

13.1 - 15.5 mi

Top 28%
×4stories
+66ft-88ft

Overall

7812

Males

6641

M45-49

6641

25K→30K

15.5 - 18.6 mi

Top 26%
×9stories
+181ft-148ft

Overall

7264

Males

6129

M45-49

6129

30K→20M

18.6 - 20.0 mi

Top 26%
×5stories
+64ft-50ft

Overall

7377

Males

6059

M45-49

6059

20M→21M

20.0 - 21.0 mi

Top 26%
×8stories
+106ft-24ft

Overall

7512

Males

5977

M45-49

5977

21M→35K

21.0 - 21.8 mi

Top 30%
×7stories
+17ft-86ft

Overall

8636

Males

6645

M45-49

6645

35K→23M

21.8 - 23.0 mi

Top 24%
×5stories
+23ft-63ft

Overall

6894

Males

5528

M45-49

5528

23M→24M

23.0 - 24.0 mi

Top 24%
×6stories
+12ft-82ft

Overall

6926

Males

5479

M45-49

5479

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

7026

Males

5444

M45-49

5444

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

16042

Males

9867

M45-49

9867

25.2M→Finish

25.2 - 26.2 mi

Top 31%
×2stories
+22ft-21ft

Overall

8754

Males

6308

M45-49

6308

Passing Analysis

Category:
Athletes Passed
887
Passed By
3112
Net Change
-2225
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4412
5K → 10K18814-796#4412#5208
10K → 15K25571-546#5208#5754
15K → 20K50538-488#5754#6242
20K → Half4126-122#6242#6364
Half → 25K67315-248#6364#6612
25K → 30K178183-5#6612#6617
30K → 20M10267+35#6617#6582
20M → 21M7759+18#6582#6564
21M → 35K4465-21#6564#6585
35K → 23M10950+59#6585#6526
23M → 24M7646+30#6526#6496
24M → 40K7434+40#6496#6456
40K → 25.2M2148-146#6456#6602
25.2M → Finish6196-35#6602#6637
TOTALS8873112-2225
📊

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