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BOSTON MARATHON 2025

Michal Burza

Bib: 2171•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 4%
Gender (Male)
#0 / 16105
Top 6%
Masters (Masters Men)
#0 / 10463
Top 1%
Division (M40-44)
#0 / 2247
Top 5%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:52
Rank: #1317
Start → 5K
18:52 | 6:04/mi
10K· 6.21 mi
37:52
Rank: #1401 (-84)
5K → 10K
19:00 | 6:07/mi
15K· 9.32 mi
56:49
Rank: #1385 (+16)
10K → 15K
18:57 | 6:06/mi
20K· 12.43 mi
1:15:55
Rank: #1368 (+17)
15K → 20K
19:06 | 6:09/mi
Half· 13.11 mi
1:20:04
Rank: #1366 (+2)
20K → Half
4:09 | 6:05/mi
25K· 15.53 mi
1:35:01
Rank: #1340 (+26)
Half → 25K
14:57 | 6:10/mi
30K· 18.64 mi
1:54:45
Rank: #1321 (+19)
25K → 30K
19:44 | 6:21/mi
20M
2:03:34
Rank: #1309 (+12)
30K → 20M
8:49 | 6:29/mi
21M
2:10:33
Rank: #1331 (-22)
20M → 21M
6:59 | 6:59/mi
35K· 21.75 mi
2:15:07
Rank: #1293 (+38)
21M → 35K
4:34 | 6:06/mi
23M
2:23:00
Rank: #1228 (+65)
35K → 23M
7:53 | 6:18/mi
24M
2:28:55
Rank: #1156 (+72)
23M → 24M
5:55 | 5:55/mi
40K· 24.85 mi
2:34:11
Rank: #1127 (+29)
24M → 40K
5:16 | 6:10/mi
25.2M
2:36:30
Rank: #1108 (+19)
40K → 25.2M
2:19 | 6:43/mi
Finish· 26.22 mi
2:42:34
Rank: #1067 (+41)
25.2M → Finish
6:04 | 5:57/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:20:04
Pace6:06 /mi
2nd Half
Distance13.11 mi
Time1:22:30
Pace6:18 /mi
📊Positive Split: 3.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:1618:526:0418:52
6:04
-
10K
6.21 mi10:38:1637:526:0619:00
6:07
+0:03
15K
9.32 mi10:57:1356:496:0618:57
6:06
-0:01
20K
12.43 mi11:16:191:15:556:0719:06
6:09
+0:03
Half
13.11 mi11:20:281:20:046:064:09
6:05
-0:04
25K
15.53 mi11:35:251:35:016:0714:57
6:10
+0:05
30K
18.64 mi11:55:091:54:456:0919:44
6:21
+0:11
20M
20.00 mi12:03:582:03:346:118:49
6:29
+0:08
21M
21.00 mi12:10:572:10:336:136:59
6:59
+0:30
35K
21.75 mi12:15:312:15:076:134:34
6:06
-0:53
23M
23.00 mi12:23:242:23:006:137:53
6:18
+0:12
24M
24.00 mi12:29:192:28:556:125:55
5:55
-0:23
40K
24.85 mi12:34:352:34:116:125:16
6:10
+0:15
25.2M
25.20 mi12:36:542:36:306:132:19
6:43
+0:33
Finish
26.22 mi12:42:582:42:346:126:04
5:57
-0:46

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

5:55 /mi

Average Pace

6:12 /mi

Slowest Pace

6:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:33:16

94% of race

Time at Steady Pace

2:19

1% of race

Time at Slower Pace

6:59

4% of race

Average Pace: 6:12 /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 mi10:19:1618:526:0418:52
6:04
#1317
10K
6.21 mi10:38:1637:526:0619:00
6:07
#1401
15K
9.32 mi10:57:1356:496:0618:57
6:06
#1385
20K
12.43 mi11:16:191:15:556:0719:06
6:09
#1368
Half
13.11 mi11:20:281:20:046:064:09
6:05
#1366
25K
15.53 mi11:35:251:35:016:0714:57
6:10
#1340
30K
18.64 mi11:55:091:54:456:0919:44
6:21
#1321
20M
20.00 mi12:03:582:03:346:118:49
6:29
#1309
21M
21.00 mi12:10:572:10:336:136:59
6:59
#1331
35K
21.75 mi12:15:312:15:076:134:34
6:06
#1293
23M
23.00 mi12:23:242:23:006:137:53
6:18
#1228
24M
24.00 mi12:29:192:28:556:125:55
5:55
#1156
40K
24.85 mi12:34:352:34:116:125:16
6:10
#1127
25.2M
25.20 mi12:36:542:36:306:132:19
6:43
#1108
Finish
26.22 mi12:42:582:42:346:126:04
5:57
#1067
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi1317125212521365(Top 5%)1297(Top 8%)1297(Top 58%)
10K6.21 mi3.10 mi1401-841332-801332-801522(Top 5%)1445(Top 9%)1445(Top 64%)
15K9.32 mi3.11 mi1385+161315+171315+171365(Top 5%)1297(Top 8%)1297(Top 58%)
20K12.43 mi3.11 mi1368+171298+171298+171352(Top 5%)1280(Top 8%)1280(Top 57%)
Half13.11 mi0.68 mi1366+21296+21296+21445(Top 5%)1373(Top 9%)1373(Top 61%)
25K15.53 mi2.42 mi1340+261269+271269+271321(Top 5%)1251(Top 8%)1251(Top 56%)
30K18.64 mi3.11 mi1321+191247+221247+221365(Top 5%)1289(Top 8%)1289(Top 57%)
20M20.00 mi1.36 mi1309+121234+131234+131563(Top 6%)1477(Top 9%)1477(Top 66%)
21M21.00 mi1.00 mi1331-221257-231257-232167(Top 8%)2023(Top 13%)2023(Top 90%)
35K21.75 mi0.75 mi1293+381219+381219+38964(Top 3%)907(Top 6%)907(Top 40%)
23M23.00 mi1.25 mi1228+651156+631156+63871(Top 3%)822(Top 5%)822(Top 37%)
24M24.00 mi1.00 mi1156+721090+661090+66434(Top 2%)405(Top 3%)405(Top 18%)
40K24.85 mi0.85 mi1127+291061+291061+29661(Top 2%)617(Top 4%)617(Top 27%)
25.2M25.20 mi0.35 mi1108+191044+171044+17785(Top 3%)728(Top 5%)728(Top 32%)
Finish26.22 mi1.02 mi1067+411004+401004+40809(Top 3%)762(Top 5%)762(Top 34%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1365

Males

1297

M40-44

1297

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1522

Males

1445

M40-44

1445

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1365

Males

1297

M40-44

1297

15K→20K

9.3 - 12.4 mi

Top 5%
×5stories
+106ft-86ft

Overall

1352

Males

1280

M40-44

1280

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1445

Males

1373

M40-44

1373

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1321

Males

1251

M40-44

1251

25K→30K

15.5 - 18.6 mi

Top 5%
×9stories
+181ft-148ft

Overall

1365

Males

1289

M40-44

1289

30K→20M

18.6 - 20.0 mi

Top 6%
×5stories
+64ft-50ft

Overall

1563

Males

1477

M40-44

1477

20M→21M

20.0 - 21.0 mi

Top 8%
×8stories
+106ft-24ft

Overall

2167

Males

2023

M40-44

2023

21M→35K

21.0 - 21.8 mi

Top 3%
×7stories
+17ft-86ft

Overall

964

Males

907

M40-44

907

35K→23M

21.8 - 23.0 mi

Top 3%
×5stories
+23ft-63ft

Overall

871

Males

822

M40-44

822

23M→24M

23.0 - 24.0 mi

Top 2%
×6stories
+12ft-82ft

Overall

434

Males

405

M40-44

405

24M→40K

24.0 - 24.9 mi

Top 2%
×1story
+6ft-20ft

Overall

661

Males

617

M40-44

617

40K→25.2M

24.9 - 25.2 mi

Top 3%
×1story
+13ft-16ft

Overall

785

Males

728

M40-44

728

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2stories
+22ft-21ft

Overall

809

Males

762

M40-44

762

Passing Analysis

Category:
Athletes Passed
601
Passed By
351
Net Change
+250
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1317
5K → 10K32116-84#1317#1401
10K → 15K5438+16#1401#1385
15K → 20K6043+17#1385#1368
20K → Half97+2#1368#1366
Half → 25K4923+26#1366#1340
25K → 30K5839+19#1340#1321
30K → 20M3624+12#1321#1309
20M → 21M2345-22#1309#1331
21M → 35K402+38#1331#1293
35K → 23M727+65#1293#1228
23M → 24M731+72#1228#1156
24M → 40K323+29#1156#1127
40K → 25.2M201+19#1127#1108
25.2M → Finish432+41#1108#1067
TOTALS601351+250
📊

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