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BOSTON MARATHON 2025

Tomáš Burda

Bib: 4373•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
21:35
Rank: #7417
Start → 5K
21:35 | 6:57/mi
10K· 6.21 mi
43:47
Rank: #8226 (-809)
5K → 10K
22:12 | 7:09/mi
15K· 9.32 mi
1:06:43
Rank: #8974 (-748)
10K → 15K
22:56 | 7:23/mi
20K· 12.43 mi
1:33:38
Rank: #11942 (-2968)
15K → 20K
26:55 | 8:40/mi
Half· 13.11 mi
1:39:44
Rank: #12562 (-620)
20K → Half
6:06 | 8:56/mi
25K· 15.53 mi
2:04:17
Rank: #15540 (-2978)
Half → 25K
24:33 | 10:08/mi
30K· 18.64 mi
2:34:04
Rank: #16625 (-1085)
25K → 30K
29:47 | 9:35/mi
20M
2:46:55
Rank: #16799 (-174)
30K → 20M
12:51 | 9:27/mi
21M
2:56:44
Rank: #16801 (-2)
20M → 21M
9:49 | 9:49/mi
35K· 21.75 mi
3:03:34
Rank: #16863 (-62)
21M → 35K
6:50 | 9:08/mi
23M
3:14:52
Rank: #16827 (+36)
35K → 23M
11:18 | 9:02/mi
24M
3:23:32
Rank: #16757 (+70)
23M → 24M
8:40 | 8:40/mi
40K· 24.85 mi
3:30:51
Rank: #16627 (+130)
24M → 40K
7:19 | 8:33/mi
25.2M
3:34:03
Rank: #16575 (+52)
40K → 25.2M
3:12 | 9:17/mi
Finish· 26.22 mi
3:42:13
Rank: #16414 (+161)
25.2M → Finish
8:10 | 8:01/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:44
Pace7:36 /mi
2nd Half
Distance13.11 mi
Time2:02:29
Pace9:21 /mi
📊Positive Split: 22.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:3521:356:5721:35
6:57
-
10K
6.21 mi10:46:4743:477:0322:12
7:09
+0:12
15K
9.32 mi11:09:431:06:437:0922:56
7:23
+0:14
20K
12.43 mi11:36:381:33:387:3226:55
8:40
+1:17
Half
13.11 mi11:42:441:39:447:366:06
8:56
+0:16
25K
15.53 mi12:07:172:04:178:0024:33
10:08
+1:12
30K
18.64 mi12:37:042:34:048:1629:47
9:35
-0:33
20M
20.00 mi12:49:552:46:558:2112:51
9:27
-0:08
21M
21.00 mi12:59:442:56:448:259:49
9:49
+0:22
35K
21.75 mi13:06:343:03:348:266:50
9:08
-0:41
23M
23.00 mi13:17:523:14:528:2811:18
9:02
-0:06
24M
24.00 mi13:26:323:23:328:298:40
8:40
-0:22
40K
24.85 mi13:33:513:30:518:297:19
8:33
-0:07
25.2M
25.20 mi13:37:033:34:038:303:12
9:17
+0:44
Finish
26.22 mi13:45:133:42:138:298:10
8:01
-1:16

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

6:57 /mi

Average Pace

8:29 /mi

Slowest Pace

10:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:14:53

34% of race

Time at Steady Pace

1:10:20

32% of race

Time at Slower Pace

1:17:00

35% of race

Average Pace: 8:29 /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 mi10:24:3521:356:5721:35
6:57
#7417
10K
6.21 mi10:46:4743:477:0322:12
7:09
#8226
15K
9.32 mi11:09:431:06:437:0922:56
7:23
#8974
20K
12.43 mi11:36:381:33:387:3226:55
8:40
#11942
Half
13.11 mi11:42:441:39:447:366:06
8:56
#12562
25K
15.53 mi12:07:172:04:178:0024:33
10:08
#15540
30K
18.64 mi12:37:042:34:048:1629:47
9:35
#16625
20M
20.00 mi12:49:552:46:558:2112:51
9:27
#16799
21M
21.00 mi12:59:442:56:448:259:49
9:49
#16801
35K
21.75 mi13:06:343:03:348:266:50
9:08
#16863
23M
23.00 mi13:17:523:14:528:2811:18
9:02
#16827
24M
24.00 mi13:26:323:23:328:298:40
8:40
#16757
40K
24.85 mi13:33:513:30:518:297:19
8:33
#16627
25.2M
25.20 mi13:37:033:34:038:303:12
9:17
#16575
Finish
26.22 mi13:45:133:42:138:298:10
8:01
#16414
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi74176611661110693(Top 38%)8453(Top 52%)8453(Top 376%)
10K6.21 mi3.10 mi8226-8097130-5197130-5199041(Top 32%)7632(Top 47%)7632(Top 340%)
15K9.32 mi3.11 mi8974-7487571-4417571-44110693(Top 38%)8453(Top 52%)8453(Top 376%)
20K12.43 mi3.11 mi11942-29689067-14969067-149619205(Top 68%)12122(Top 75%)12122(Top 539%)
Half13.11 mi0.68 mi12562-6209340-2739340-27321528(Top 76%)13132(Top 82%)13132(Top 584%)
25K15.53 mi2.42 mi15540-297810581-124110581-124123550(Top 83%)13980(Top 87%)13980(Top 622%)
30K18.64 mi3.11 mi16625-108510982-40110982-40120285(Top 71%)12414(Top 77%)12414(Top 552%)
20M20.00 mi1.36 mi16799-17411033-5111033-5118952(Top 67%)11662(Top 72%)11662(Top 519%)
21M21.00 mi1.00 mi16801-210996+3710996+3717530(Top 62%)10934(Top 68%)10934(Top 487%)
35K21.75 mi0.75 mi16863-6211003-711003-718844(Top 66%)11413(Top 71%)11413(Top 508%)
23M23.00 mi1.25 mi16827+3610953+5010953+5016402(Top 58%)10244(Top 64%)10244(Top 456%)
24M24.00 mi1.00 mi16757+7010895+5810895+5815527(Top 55%)9830(Top 61%)9830(Top 437%)
40K24.85 mi0.85 mi16627+13010813+8210813+8213776(Top 49%)8901(Top 55%)8901(Top 396%)
25.2M25.20 mi0.35 mi16575+5210785+2810785+2813329(Top 47%)8635(Top 54%)8635(Top 384%)
Finish26.22 mi1.02 mi16414+16110694+9110694+9112968(Top 46%)8521(Top 53%)8521(Top 379%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21stories
+97ft-345ft

Overall

10693

Males

8453

M40-44

8453

5K→10K

3.1 - 6.2 mi

Top 32%
×5stories
+79ft-138ft

Overall

9041

Males

7632

M40-44

7632

10K→15K

6.2 - 9.3 mi

Top 38%
×3stories
+67ft-78ft

Overall

10693

Males

8453

M40-44

8453

15K→20K

9.3 - 12.4 mi

Top 68%
×5stories
+106ft-86ft

Overall

19205

Males

12122

M40-44

12122

20K→Half

12.4 - 13.1 mi

Top 76%
×2stories
+19ft-37ft

Overall

21528

Males

13132

M40-44

13132

Half→25K

13.1 - 15.5 mi

Top 83%
×4stories
+66ft-88ft

Overall

23550

Males

13980

M40-44

13980

25K→30K

15.5 - 18.6 mi

Top 71%
×9stories
+181ft-148ft

Overall

20285

Males

12414

M40-44

12414

30K→20M

18.6 - 20.0 mi

Top 67%
×5stories
+64ft-50ft

Overall

18952

Males

11662

M40-44

11662

20M→21M

20.0 - 21.0 mi

Top 62%
×8stories
+106ft-24ft

Overall

17530

Males

10934

M40-44

10934

21M→35K

21.0 - 21.8 mi

Top 66%
×7stories
+17ft-86ft

Overall

18844

Males

11413

M40-44

11413

35K→23M

21.8 - 23.0 mi

Top 58%
×5stories
+23ft-63ft

Overall

16402

Males

10244

M40-44

10244

23M→24M

23.0 - 24.0 mi

Top 55%
×6stories
+12ft-82ft

Overall

15527

Males

9830

M40-44

9830

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

13776

Males

8901

M40-44

8901

40K→25.2M

24.9 - 25.2 mi

Top 47%
×1story
+13ft-16ft

Overall

13329

Males

8635

M40-44

8635

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2stories
+22ft-21ft

Overall

12968

Males

8521

M40-44

8521

Passing Analysis

Category:
Athletes Passed
960
Passed By
9955
Net Change
-8997
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7417
5K → 10K33842-809#7417#8226
10K → 15K35783-748#8226#8974
15K → 20K62972-2968#8974#11942
20K → Half1621-620#11942#12562
Half → 25K62984-2978#12562#15540
25K → 30K451130-1085#15540#16625
30K → 20M55229-174#16625#16799
20M → 21M114116-2#16799#16801
21M → 35K46108-62#16801#16863
35K → 23M12286+36#16863#16827
23M → 24M11444+70#16827#16757
24M → 40K14818+130#16757#16627
40K → 25.2M586+52#16627#16575
25.2M → Finish17716+161#16575#16414
TOTALS9609955-8997
📊

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