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BOSTON MARATHON 2025

Nathan Butler

Bib: 7554•M

OR

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 10%
Gender (Male)
#0 / 16105
Top 16%
Masters (Masters Men)
#0 / 10463
Top 5%
Division (M40-44)
#0 / 2247
Top 15%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:39
Rank: #4973
Start → 5K
20:39 | 6:39/mi
10K· 6.21 mi
41:16
Rank: #4824 (+149)
5K → 10K
20:37 | 6:38/mi
15K· 9.32 mi
1:02:02
Rank: #4836 (-12)
10K → 15K
20:46 | 6:41/mi
20K· 12.43 mi
1:22:48
Rank: #4654 (+182)
15K → 20K
20:46 | 6:41/mi
Half· 13.11 mi
1:27:17
Rank: #4620 (+34)
20K → Half
4:29 | 6:34/mi
25K· 15.53 mi
1:43:26
Rank: #4439 (+181)
Half → 25K
16:09 | 6:40/mi
30K· 18.64 mi
2:04:00
Rank: #3950 (+489)
25K → 30K
20:34 | 6:37/mi
20M
2:13:02
Rank: #3780 (+170)
30K → 20M
9:02 | 6:39/mi
21M
2:19:51
Rank: #3607 (+173)
20M → 21M
6:49 | 6:49/mi
35K· 21.75 mi
2:24:34
Rank: #3483 (+124)
21M → 35K
4:43 | 6:18/mi
23M
2:32:39
Rank: #3268 (+215)
35K → 23M
8:05 | 6:27/mi
24M
2:38:57
Rank: #3114 (+154)
23M → 24M
6:18 | 6:18/mi
40K· 24.85 mi
2:44:21
Rank: #2969 (+145)
24M → 40K
5:24 | 6:19/mi
25.2M
2:46:45
Rank: #2921 (+48)
40K → 25.2M
2:24 | 6:58/mi
Finish· 26.22 mi
2:52:53
Rank: #2798 (+123)
25.2M → Finish
6:08 | 6:01/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:27:17
Pace6:39 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:25:36
Pace6:32 /mi
📊Negative Split: 1.9% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:1820:396:3920:39
6:39
-
10K
6.21 mi10:46:5541:166:3820:37
6:38
-0:01
15K
9.32 mi11:07:411:02:026:3920:46
6:41
+0:03
20K
12.43 mi11:28:271:22:486:4020:46
6:41
0:00
Half
13.11 mi11:32:561:27:176:394:29
6:34
-0:07
25K
15.53 mi11:49:051:43:266:4016:09
6:40
+0:06
30K
18.64 mi12:09:392:04:006:3920:34
6:37
-0:03
20M
20.00 mi12:18:412:13:026:399:02
6:39
+0:02
21M
21.00 mi12:25:302:19:516:406:49
6:49
+0:10
35K
21.75 mi12:30:132:24:346:394:43
6:18
-0:31
23M
23.00 mi12:38:182:32:396:388:05
6:27
+0:09
24M
24.00 mi12:44:362:38:576:376:18
6:18
-0:09
40K
24.85 mi12:50:002:44:216:375:24
6:19
+0:01
25.2M
25.20 mi12:52:242:46:456:372:24
6:58
+0:39
Finish
26.22 mi12:58:322:52:536:366:08
6:01
-0:57

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

6:01 /mi

Average Pace

6:36 /mi

Slowest Pace

6:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

55:41

32% of race

Time at Steady Pace

1:57:12

68% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:36 /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 mi10:26:1820:396:3920:39
6:39
#4973
10K
6.21 mi10:46:5541:166:3820:37
6:38
#4824
15K
9.32 mi11:07:411:02:026:3920:46
6:41
#4836
20K
12.43 mi11:28:271:22:486:4020:46
6:41
#4654
Half
13.11 mi11:32:561:27:176:394:29
6:34
#4620
25K
15.53 mi11:49:051:43:266:4016:09
6:40
#4439
30K
18.64 mi12:09:392:04:006:3920:34
6:37
#3950
20M
20.00 mi12:18:412:13:026:399:02
6:39
#3780
21M
21.00 mi12:25:302:19:516:406:49
6:49
#3607
35K
21.75 mi12:30:132:24:346:394:43
6:18
#3483
23M
23.00 mi12:38:182:32:396:388:05
6:27
#3268
24M
24.00 mi12:44:362:38:576:376:18
6:18
#3114
40K
24.85 mi12:50:002:44:216:375:24
6:19
#2969
25.2M
25.20 mi12:52:242:46:456:372:24
6:58
#2921
Finish
26.22 mi12:58:322:52:536:366:08
6:01
#2798
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi4973464746474907(Top 17%)4570(Top 28%)4570(Top 203%)
10K6.21 mi3.10 mi4824+1494509+1384509+1384727(Top 17%)4424(Top 27%)4424(Top 197%)
15K9.32 mi3.11 mi4836-124517-84517-84907(Top 17%)4570(Top 28%)4570(Top 203%)
20K12.43 mi3.11 mi4654+1824346+1714346+1714273(Top 15%)3996(Top 25%)3996(Top 178%)
Half13.11 mi0.68 mi4620+344320+264320+264099(Top 14%)3838(Top 24%)3838(Top 171%)
25K15.53 mi2.42 mi4439+1814156+1644156+1643842(Top 14%)3597(Top 22%)3597(Top 160%)
30K18.64 mi3.11 mi3950+4893713+4433713+4432493(Top 9%)2361(Top 15%)2361(Top 105%)
20M20.00 mi1.36 mi3780+1703559+1543559+1542223(Top 8%)2101(Top 13%)2101(Top 94%)
21M21.00 mi1.00 mi3607+1733396+1633396+1631588(Top 6%)1497(Top 9%)1497(Top 67%)
35K21.75 mi0.75 mi3483+1243287+1093287+1091630(Top 6%)1530(Top 10%)1530(Top 68%)
23M23.00 mi1.25 mi3268+2153083+2043083+2041327(Top 5%)1248(Top 8%)1248(Top 56%)
24M24.00 mi1.00 mi3114+1542939+1442939+1441318(Top 5%)1233(Top 8%)1233(Top 55%)
40K24.85 mi0.85 mi2969+1452804+1352804+1351016(Top 4%)953(Top 6%)953(Top 42%)
25.2M25.20 mi0.35 mi2921+482759+452759+451371(Top 5%)1258(Top 8%)1258(Top 56%)
Finish26.22 mi1.02 mi2798+1232648+1112648+111964(Top 3%)906(Top 6%)906(Top 40%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21stories
+97ft-345ft

Overall

4907

Males

4570

M40-44

4570

5K→10K

3.1 - 6.2 mi

Top 17%
×5stories
+79ft-138ft

Overall

4727

Males

4424

M40-44

4424

10K→15K

6.2 - 9.3 mi

Top 17%
×3stories
+67ft-78ft

Overall

4907

Males

4570

M40-44

4570

15K→20K

9.3 - 12.4 mi

Top 15%
×5stories
+106ft-86ft

Overall

4273

Males

3996

M40-44

3996

20K→Half

12.4 - 13.1 mi

Top 14%
×2stories
+19ft-37ft

Overall

4099

Males

3838

M40-44

3838

Half→25K

13.1 - 15.5 mi

Top 14%
×4stories
+66ft-88ft

Overall

3842

Males

3597

M40-44

3597

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2493

Males

2361

M40-44

2361

30K→20M

18.6 - 20.0 mi

Top 8%
×5stories
+64ft-50ft

Overall

2223

Males

2101

M40-44

2101

20M→21M

20.0 - 21.0 mi

Top 6%
×8stories
+106ft-24ft

Overall

1588

Males

1497

M40-44

1497

21M→35K

21.0 - 21.8 mi

Top 6%
×7stories
+17ft-86ft

Overall

1630

Males

1530

M40-44

1530

35K→23M

21.8 - 23.0 mi

Top 5%
×5stories
+23ft-63ft

Overall

1327

Males

1248

M40-44

1248

23M→24M

23.0 - 24.0 mi

Top 5%
×6stories
+12ft-82ft

Overall

1318

Males

1233

M40-44

1233

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

1016

Males

953

M40-44

953

40K→25.2M

24.9 - 25.2 mi

Top 5%
×1story
+13ft-16ft

Overall

1371

Males

1258

M40-44

1258

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2stories
+22ft-21ft

Overall

964

Males

906

M40-44

906

Passing Analysis

Category:
Athletes Passed
2473
Passed By
298
Net Change
+2175
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4973
5K → 10K249100+149#4973#4824
10K → 15K108120-12#4824#4836
15K → 20K22139+182#4836#4654
20K → Half417+34#4654#4620
Half → 25K20221+181#4620#4439
25K → 30K4912+489#4439#3950
30K → 20M1711+170#3950#3780
20M → 21M1752+173#3780#3607
21M → 35K1240+124#3607#3483
35K → 23M2205+215#3483#3268
23M → 24M1540+154#3268#3114
24M → 40K1450+145#3114#2969
40K → 25.2M480+48#2969#2921
25.2M → Finish1241+123#2921#2798
TOTALS2473298+2175
📊

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