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BOSTON MARATHON 2025

Nicholas Kukla

Bib: 26528•M

FL

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 46%
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:07
Rank: #17239
Start → 5K
25:07 | 8:05/mi
10K· 6.21 mi
49:39
Rank: #16422 (+817)
5K → 10K
24:32 | 7:54/mi
15K· 9.32 mi
1:13:59
Rank: #15811 (+611)
10K → 15K
24:20 | 7:50/mi
20K· 12.43 mi
1:38:21
Rank: #15221 (+590)
15K → 20K
24:22 | 7:51/mi
Half· 13.11 mi
1:43:37
Rank: #15128 (+93)
20K → Half
5:16 | 7:43/mi
25K· 15.53 mi
2:02:28
Rank: #14574 (+554)
Half → 25K
18:51 | 7:46/mi
30K· 18.64 mi
2:27:20
Rank: #13910 (+664)
25K → 30K
24:52 | 8:00/mi
20M
2:39:30
Rank: #14111 (-201)
30K → 20M
12:10 | 8:57/mi
21M
2:48:05
Rank: #13888 (+223)
20M → 21M
8:35 | 8:35/mi
35K· 21.75 mi
2:54:18
Rank: #13880 (+8)
21M → 35K
6:13 | 8:19/mi
23M
3:04:30
Rank: #13671 (+209)
35K → 23M
10:12 | 8:09/mi
24M
3:12:24
Rank: #13516 (+155)
23M → 24M
7:54 | 7:54/mi
40K· 24.85 mi
3:19:07
Rank: #13334 (+182)
24M → 40K
6:43 | 7:51/mi
25.2M
3:22:02
Rank: #13248 (+86)
40K → 25.2M
2:55 | 8:27/mi
Finish· 26.22 mi
3:29:47
Rank: #13153 (+95)
25.2M → Finish
7:45 | 7:36/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:37
Pace7:54 /mi
2nd Half
Distance13.11 mi
Time1:46:10
Pace8:06 /mi
📊Positive Split: 2.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:3925:078:0525:07
8:05
-
10K
6.21 mi12:16:1149:397:5924:32
7:54
-0:11
15K
9.32 mi12:40:311:13:597:5624:20
7:50
-0:04
20K
12.43 mi13:04:531:38:217:5524:22
7:51
+0:01
Half
13.11 mi13:10:091:43:377:545:16
7:43
-0:08
25K
15.53 mi13:29:002:02:287:5318:51
7:46
+0:03
30K
18.64 mi13:53:522:27:207:5424:52
8:00
+0:14
20M
20.00 mi14:06:022:39:307:5812:10
8:57
+0:57
21M
21.00 mi14:14:372:48:058:008:35
8:35
-0:22
35K
21.75 mi14:20:502:54:188:016:13
8:19
-0:16
23M
23.00 mi14:31:023:04:308:0110:12
8:09
-0:10
24M
24.00 mi14:38:563:12:248:017:54
7:54
-0:15
40K
24.85 mi14:45:393:19:078:016:43
7:51
-0:03
25.2M
25.20 mi14:48:343:22:028:012:55
8:27
+0:36
Finish
26.22 mi14:56:193:29:478:007:45
7:36
-0:51

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

7:36 /mi

Average Pace

8:00 /mi

Slowest Pace

8:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:06:07

89% of race

Time at Steady Pace

23:40

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:00 /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 mi11:51:3925:078:0525:07
8:05
#17239
10K
6.21 mi12:16:1149:397:5924:32
7:54
#16422
15K
9.32 mi12:40:311:13:597:5624:20
7:50
#15811
20K
12.43 mi13:04:531:38:217:5524:22
7:51
#15221
Half
13.11 mi13:10:091:43:377:545:16
7:43
#15128
25K
15.53 mi13:29:002:02:287:5318:51
7:46
#14574
30K
18.64 mi13:53:522:27:207:5424:52
8:00
#13910
20M
20.00 mi14:06:022:39:307:5812:10
8:57
#14111
21M
21.00 mi14:14:372:48:058:008:35
8:35
#13888
35K
21.75 mi14:20:502:54:188:016:13
8:19
#13880
23M
23.00 mi14:31:023:04:308:0110:12
8:09
#13671
24M
24.00 mi14:38:563:12:248:017:54
7:54
#13516
40K
24.85 mi14:45:393:19:078:016:43
7:51
#13334
25.2M
25.20 mi14:48:343:22:028:012:55
8:27
#13248
Finish
26.22 mi14:56:193:29:478:007:45
7:36
#13153
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi17239113031130314634(Top 52%)10209(Top 63%)10209(Top 181%)
10K6.21 mi3.10 mi16422+81710978+32510978+32515620(Top 55%)10673(Top 66%)10673(Top 189%)
15K9.32 mi3.11 mi15811+61110743+23510743+23514634(Top 52%)10209(Top 63%)10209(Top 181%)
20K12.43 mi3.11 mi15221+59010467+27610467+27613608(Top 48%)9691(Top 60%)9691(Top 172%)
Half13.11 mi0.68 mi15128+9310428+3910428+3913497(Top 48%)9685(Top 60%)9685(Top 172%)
25K15.53 mi2.42 mi14574+55410150+27810150+27812124(Top 43%)8919(Top 55%)8919(Top 158%)
30K18.64 mi3.11 mi13910+6649817+3339817+33311405(Top 40%)8399(Top 52%)8399(Top 149%)
20M20.00 mi1.36 mi14111-2019869-529869-5216524(Top 58%)10587(Top 66%)10587(Top 188%)
21M21.00 mi1.00 mi13888+2239741+1289741+12810983(Top 39%)7870(Top 49%)7870(Top 139%)
35K21.75 mi0.75 mi13880+89718+239718+2314263(Top 50%)9394(Top 58%)9394(Top 167%)
23M23.00 mi1.25 mi13671+2099584+1349584+13411022(Top 39%)7767(Top 48%)7767(Top 138%)
24M24.00 mi1.00 mi13516+1559496+889496+8810542(Top 37%)7455(Top 46%)7455(Top 132%)
40K24.85 mi0.85 mi13334+1829383+1139383+1139175(Top 32%)6622(Top 41%)6622(Top 117%)
25.2M25.20 mi0.35 mi13248+869332+519332+518561(Top 30%)6246(Top 39%)6246(Top 111%)
Finish26.22 mi1.02 mi13153+959271+619271+619964(Top 35%)6973(Top 43%)6973(Top 124%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21stories
+97ft-345ft

Overall

14634

Males

10209

M18-39

10209

5K→10K

3.1 - 6.2 mi

Top 55%
×5stories
+79ft-138ft

Overall

15620

Males

10673

M18-39

10673

10K→15K

6.2 - 9.3 mi

Top 52%
×3stories
+67ft-78ft

Overall

14634

Males

10209

M18-39

10209

15K→20K

9.3 - 12.4 mi

Top 48%
×5stories
+106ft-86ft

Overall

13608

Males

9691

M18-39

9691

20K→Half

12.4 - 13.1 mi

Top 48%
×2stories
+19ft-37ft

Overall

13497

Males

9685

M18-39

9685

Half→25K

13.1 - 15.5 mi

Top 43%
×4stories
+66ft-88ft

Overall

12124

Males

8919

M18-39

8919

25K→30K

15.5 - 18.6 mi

Top 40%
×9stories
+181ft-148ft

Overall

11405

Males

8399

M18-39

8399

30K→20M

18.6 - 20.0 mi

Top 58%
×5stories
+64ft-50ft

Overall

16524

Males

10587

M18-39

10587

20M→21M

20.0 - 21.0 mi

Top 39%
×8stories
+106ft-24ft

Overall

10983

Males

7870

M18-39

7870

21M→35K

21.0 - 21.8 mi

Top 50%
×7stories
+17ft-86ft

Overall

14263

Males

9394

M18-39

9394

35K→23M

21.8 - 23.0 mi

Top 39%
×5stories
+23ft-63ft

Overall

11022

Males

7767

M18-39

7767

23M→24M

23.0 - 24.0 mi

Top 37%
×6stories
+12ft-82ft

Overall

10542

Males

7455

M18-39

7455

24M→40K

24.0 - 24.9 mi

Top 32%
×1story
+6ft-20ft

Overall

9175

Males

6622

M18-39

6622

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

8561

Males

6246

M18-39

6246

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2stories
+22ft-21ft

Overall

9964

Males

6973

M18-39

6973

Passing Analysis

Category:
Athletes Passed
4617
Passed By
531
Net Change
+4086
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17239
5K → 10K88972+817#17239#16422
10K → 15K63423+611#16422#15811
15K → 20K60212+590#15811#15221
20K → Half1029+93#15221#15128
Half → 25K5584+554#15128#14574
25K → 30K67612+664#14574#13910
30K → 20M65266-201#13910#14111
20M → 21M23916+223#14111#13888
21M → 35K6759+8#13888#13880
35K → 23M22819+209#13880#13671
23M → 24M17116+155#13671#13516
24M → 40K1875+182#13516#13334
40K → 25.2M871+86#13334#13248
25.2M → Finish11217+95#13248#13153
TOTALS4617531+4086
📊

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