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BOSTON MARATHON 2025

Roman Kukucka

Bib: 11427•M

MS

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 31%
Gender (Male)
#0 / 16105
Top 44%
Masters (Masters Men)
#0 / 10463
Top 32%
Division (M45-49)
#0 / 2386
Top 46%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:25/mi
23:04
↑ 97↓ 3451.5%
10K· 6.21 mi
7:21/mi
45:53
↑ 79↓ 1380.4%
15K· 9.32 mi
7:24/mi
1:08:51
↑ 67↓ 78
20K· 12.43 mi
7:26/mi
1:31:56
↑ 106↓ 860.1%
Half· 13.11 mi
7:21/mi
1:36:57
↑ 19↓ 370.5%
25K· 15.53 mi
7:26/mi
1:54:58
↑ 66↓ 880.2%
30K· 18.64 mi
7:41/mi
2:18:50
↑ 181↓ 1480.2%
20M
7:41/mi
2:29:16
↑ 64↓ 500.2%
21M
7:56/mi
2:37:12
↑ 106↓ 241.6%
35K· 21.75 mi
7:24/mi
2:42:44
↑ 17↓ 861.7%
23M
7:41/mi
2:52:21
↑ 23↓ 630.6%
24M
7:17/mi
2:59:38
↓ 821.3%
40K· 24.85 mi
7:28/mi
3:06:01
↓ 200.3%
25.2M
8:04/mi
3:08:48
↑ 13↓ 160.2%
Finish· 26.22 mi
6:56/mi
3:15:52
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:57
Pace7:24 /mi
2nd Half
Distance13.11 mi
Time1:38:55
Pace7:33 /mi
📊Positive Split: 2.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:3323:047:2523:04
7:25
-
10K
6.21 mi11:15:2245:537:2322:49
7:21
-0:04
15K
9.32 mi11:38:201:08:517:2322:58
7:24
+0:03
20K
12.43 mi12:01:251:31:567:2423:05
7:26
+0:02
Half
13.11 mi12:06:261:36:577:245:01
7:21
-0:05
25K
15.53 mi12:24:271:54:587:2418:01
7:26
+0:05
30K
18.64 mi12:48:192:18:507:2723:52
7:41
+0:15
20M
20.00 mi12:58:452:29:167:2810:26
7:41
0:00
21M
21.00 mi13:06:412:37:127:297:56
7:56
+0:15
35K
21.75 mi13:12:132:42:447:295:32
7:24
-0:32
23M
23.00 mi13:21:502:52:217:309:37
7:41
+0:17
24M
24.00 mi13:29:072:59:387:297:17
7:17
-0:24
40K
24.85 mi13:35:303:06:017:296:23
7:28
+0:11
25.2M
25.20 mi13:38:173:08:487:302:47
8:04
+0:36
Finish
26.22 mi13:45:213:15:527:297:04
6:56
-1:08

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

6:56 /mi

Average Pace

7:29 /mi

Slowest Pace

8:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:21:14

72% of race

Time at Steady Pace

54:38

28% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:28 /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 mi10:52:3323:047:2523:04
7:25
#11548
10K
6.21 mi11:15:2245:537:2322:49
7:21
#11086
15K
9.32 mi11:38:201:08:517:2322:58
7:24
#10937
20K
12.43 mi12:01:251:31:567:2423:05
7:26
#10740
Half
13.11 mi12:06:261:36:577:245:01
7:21
#10711
25K
15.53 mi12:24:271:54:587:2418:01
7:26
#10456
30K
18.64 mi12:48:192:18:507:2723:52
7:41
#10121
20M
20.00 mi12:58:452:29:167:2810:26
7:41
#9895
21M
21.00 mi13:06:412:37:127:297:56
7:56
#9690
35K
21.75 mi13:12:132:42:447:295:32
7:24
#9589
23M
23.00 mi13:21:502:52:217:309:37
7:41
#9437
24M
24.00 mi13:29:072:59:387:297:17
7:17
#9266
40K
24.85 mi13:35:303:06:017:296:23
7:28
#9101
25.2M
25.20 mi13:38:173:08:487:302:47
8:04
#9029
Finish
26.22 mi13:45:213:15:527:297:04
6:56
#8830
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi115488969896910782(Top 38%)8488(Top 53%)8488(Top 356%)
10K6.21 mi3.10 mi11086+4628716+2538716+25310681(Top 38%)8500(Top 53%)8500(Top 356%)
15K9.32 mi3.11 mi10937+1498622+948622+9410782(Top 38%)8488(Top 53%)8488(Top 356%)
20K12.43 mi3.11 mi10740+1978500+1228500+12210138(Top 36%)8082(Top 50%)8082(Top 339%)
Half13.11 mi0.68 mi10711+298479+218479+2110401(Top 37%)8214(Top 51%)8214(Top 344%)
25K15.53 mi2.42 mi10456+2558316+1638316+1639372(Top 33%)7539(Top 47%)7539(Top 316%)
30K18.64 mi3.11 mi10121+3358072+2448072+2449063(Top 32%)7171(Top 45%)7171(Top 301%)
20M20.00 mi1.36 mi9895+2267930+1427930+1428193(Top 29%)6561(Top 41%)6561(Top 275%)
21M21.00 mi1.00 mi9690+2057787+1437787+1436988(Top 25%)5678(Top 35%)5678(Top 238%)
35K21.75 mi0.75 mi9589+1017710+777710+777876(Top 28%)6230(Top 39%)6230(Top 261%)
23M23.00 mi1.25 mi9437+1527585+1257585+1257773(Top 27%)6032(Top 37%)6032(Top 253%)
24M24.00 mi1.00 mi9266+1717457+1287457+1286317(Top 22%)5117(Top 32%)5117(Top 214%)
40K24.85 mi0.85 mi9101+1657332+1257332+1256603(Top 23%)5210(Top 32%)5210(Top 218%)
25.2M25.20 mi0.35 mi9029+727267+657267+656319(Top 22%)4952(Top 31%)4952(Top 208%)
Finish26.22 mi1.02 mi8830+1997112+1557112+1555319(Top 19%)4330(Top 27%)4330(Top 181%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21story building
+97ft-345ft

Overall

10782

Males

8488

M45-49

8488

5K→10K

3.1 - 6.2 mi

Top 38%
×5story building
+79ft-138ft

Overall

10681

Males

8500

M45-49

8500

10K→15K

6.2 - 9.3 mi

Top 38%
×3story building
+67ft-78ft

Overall

10782

Males

8488

M45-49

8488

15K→20K

9.3 - 12.4 mi

Top 36%
×5story building
+106ft-86ft

Overall

10138

Males

8082

M45-49

8082

20K→Half

12.4 - 13.1 mi

Top 37%
×2story building
+19ft-37ft

Overall

10401

Males

8214

M45-49

8214

Half→25K

13.1 - 15.5 mi

Top 33%
×4story building
+66ft-88ft

Overall

9372

Males

7539

M45-49

7539

25K→30K

15.5 - 18.6 mi

Top 32%
×9story building
+181ft-148ft

Overall

9063

Males

7171

M45-49

7171

30K→20M

18.6 - 20.0 mi

Top 29%
×5story building
+64ft-50ft

Overall

8193

Males

6561

M45-49

6561

20M→21M

20.0 - 21.0 mi

Top 25%
×8story building
+106ft-24ft

Overall

6988

Males

5678

M45-49

5678

21M→35K

21.0 - 21.8 mi

Top 28%
×7story building
+17ft-86ft

Overall

7876

Males

6230

M45-49

6230

35K→23M

21.8 - 23.0 mi

Top 27%
×5story building
+23ft-63ft

Overall

7773

Males

6032

M45-49

6032

23M→24M

23.0 - 24.0 mi

Top 22%
×6story building
+12ft-82ft

Overall

6317

Males

5117

M45-49

5117

24M→40K

24.0 - 24.9 mi

Top 23%
×1story
+6ft-20ft

Overall

6603

Males

5210

M45-49

5210

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

6319

Males

4952

M45-49

4952

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2story building
+22ft-21ft

Overall

5319

Males

4330

M45-49

4330

Passing Analysis

Category:
Athletes Passed
3221*
Passed By
502
Net Change
+2718
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11548
5K → 10K56199+462#11548#11086
10K → 15K24697+149#11086#10937
15K → 20K26467+197#10937#10740
20K → Half4819+29#10740#10711
Half → 25K29439+255#10711#10456
25K → 30K40569+335#10456#10121
30K → 20M239*13+226#10121#9895
20M → 21M21914+205#9895#9690
21M → 35K11110+101#9690#9589
35K → 23M18735+152#9589#9437
23M → 24M18312+171#9437#9266
24M → 40K17510+165#9266#9101
40K → 25.2M819+72#9101#9029
25.2M → Finish2089+199#9029#8830
TOTALS3221*502+2718

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
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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