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BOSTON MARATHON 2025

Jeffrey Butterworth

Bib: 838•M

WI

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 3%
Gender (Male)
#0 / 16105
Top 4%
Division (M18-39)
#0 / 5642
Top 11%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:13
Rank: #725
Start → 5K
18:13 | 5:52/mi
10K· 6.21 mi
36:17
Rank: #669 (+56)
5K → 10K
18:04 | 5:49/mi
15K· 9.32 mi
54:45
Rank: #726 (-57)
10K → 15K
18:28 | 5:57/mi
20K· 12.43 mi
1:13:28
Rank: #768 (-42)
15K → 20K
18:43 | 6:01/mi
Half· 13.11 mi
1:17:37
Rank: #794 (-26)
20K → Half
4:09 | 6:05/mi
25K· 15.53 mi
1:32:38
Rank: #859 (-65)
Half → 25K
15:01 | 6:12/mi
30K· 18.64 mi
1:52:09
Rank: #870 (-11)
25K → 30K
19:31 | 6:17/mi
20M
2:00:42
Rank: #847 (+23)
30K → 20M
8:33 | 6:18/mi
21M
2:07:15
Rank: #832 (+15)
20M → 21M
6:33 | 6:33/mi
35K· 21.75 mi
2:11:37
Rank: #802 (+30)
21M → 35K
4:22 | 5:50/mi
23M
2:19:21
Rank: #772 (+30)
35K → 23M
7:44 | 6:11/mi
24M
2:25:29
Rank: #758 (+14)
23M → 24M
6:08 | 6:08/mi
40K· 24.85 mi
2:30:57
Rank: #764 (-6)
24M → 40K
5:28 | 6:24/mi
25.2M
2:33:20
Rank: #767 (-3)
40K → 25.2M
2:23 | 6:55/mi
Finish· 26.22 mi
2:39:25
Rank: #753 (+14)
25.2M → Finish
6:05 | 5:58/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:17:37
Pace5:55 /mi
2nd Half
Distance13.11 mi
Time1:21:48
Pace6:14 /mi
📊Positive Split: 5.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:2618:135:5218:13
5:52
-
10K
6.21 mi10:36:3036:175:5018:04
5:49
-0:03
15K
9.32 mi10:54:5854:455:5218:28
5:57
+0:08
20K
12.43 mi11:13:411:13:285:5518:43
6:01
+0:04
Half
13.11 mi11:17:501:17:375:554:09
6:05
+0:04
25K
15.53 mi11:32:511:32:385:5815:01
6:12
+0:07
30K
18.64 mi11:52:221:52:096:0119:31
6:17
+0:05
20M
20.00 mi12:00:552:00:426:028:33
6:18
+0:01
21M
21.00 mi12:07:282:07:156:046:33
6:33
+0:15
35K
21.75 mi12:11:502:11:376:034:22
5:50
-0:43
23M
23.00 mi12:19:342:19:216:047:44
6:11
+0:21
24M
24.00 mi12:25:422:25:296:046:08
6:08
-0:03
40K
24.85 mi12:31:102:30:576:045:28
6:24
+0:16
25.2M
25.20 mi12:33:332:33:206:052:23
6:55
+0:31
Finish
26.22 mi12:39:382:39:256:056:05
5:58
-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

5:49 /mi

Average Pace

6:05 /mi

Slowest Pace

6:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:25:01

91% of race

Time at Steady Pace

12:01

8% of race

Time at Slower Pace

2:23

1% of race

Average Pace: 6:05 /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 mi10:18:2618:135:5218:13
5:52
#725
10K
6.21 mi10:36:3036:175:5018:04
5:49
#669
15K
9.32 mi10:54:5854:455:5218:28
5:57
#726
20K
12.43 mi11:13:411:13:285:5518:43
6:01
#768
Half
13.11 mi11:17:501:17:375:554:09
6:05
#794
25K
15.53 mi11:32:511:32:385:5815:01
6:12
#859
30K
18.64 mi11:52:221:52:096:0119:31
6:17
#870
20M
20.00 mi12:00:552:00:426:028:33
6:18
#847
21M
21.00 mi12:07:282:07:156:046:33
6:33
#832
35K
21.75 mi12:11:502:11:376:034:22
5:50
#802
23M
23.00 mi12:19:342:19:216:047:44
6:11
#772
24M
24.00 mi12:25:422:25:296:046:08
6:08
#758
40K
24.85 mi12:31:102:30:576:045:28
6:24
#764
25.2M
25.20 mi12:33:332:33:206:052:23
6:55
#767
Finish
26.22 mi12:39:382:39:256:056:05
5:58
#753
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi725674674869(Top 3%)817(Top 5%)817(Top 14%)
10K6.21 mi3.10 mi669+56623+51623+51639(Top 2%)595(Top 4%)595(Top 11%)
15K9.32 mi3.11 mi726-57678-55678-55869(Top 3%)817(Top 5%)817(Top 14%)
20K12.43 mi3.11 mi768-42718-40718-40926(Top 3%)872(Top 5%)872(Top 15%)
Half13.11 mi0.68 mi794-26743-25743-251428(Top 5%)1356(Top 8%)1356(Top 24%)
25K15.53 mi2.42 mi859-65807-64807-641414(Top 5%)1342(Top 8%)1342(Top 24%)
30K18.64 mi3.11 mi870-11818-11818-111141(Top 4%)1075(Top 7%)1075(Top 19%)
20M20.00 mi1.36 mi847+23796+22796+22930(Top 3%)876(Top 5%)876(Top 16%)
21M21.00 mi1.00 mi832+15781+15781+15781(Top 3%)738(Top 5%)738(Top 13%)
35K21.75 mi0.75 mi802+30752+29752+29432(Top 2%)404(Top 3%)404(Top 7%)
23M23.00 mi1.25 mi772+30723+29723+29630(Top 2%)594(Top 4%)594(Top 11%)
24M24.00 mi1.00 mi758+14709+14709+14838(Top 3%)787(Top 5%)787(Top 14%)
40K24.85 mi0.85 mi764-6715-6715-61222(Top 4%)1135(Top 7%)1135(Top 20%)
25.2M25.20 mi0.35 mi767-3716-1716-11206(Top 4%)1108(Top 7%)1108(Top 20%)
Finish26.22 mi1.02 mi753+14702+14702+14828(Top 3%)781(Top 5%)781(Top 14%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21stories
+97ft-345ft

Overall

869

Males

817

M18-39

817

5K→10K

3.1 - 6.2 mi

Top 2%
×5stories
+79ft-138ft

Overall

639

Males

595

M18-39

595

10K→15K

6.2 - 9.3 mi

Top 3%
×3stories
+67ft-78ft

Overall

869

Males

817

M18-39

817

15K→20K

9.3 - 12.4 mi

Top 3%
×5stories
+106ft-86ft

Overall

926

Males

872

M18-39

872

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1428

Males

1356

M18-39

1356

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1414

Males

1342

M18-39

1342

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

1141

Males

1075

M18-39

1075

30K→20M

18.6 - 20.0 mi

Top 3%
×5stories
+64ft-50ft

Overall

930

Males

876

M18-39

876

20M→21M

20.0 - 21.0 mi

Top 3%
×8stories
+106ft-24ft

Overall

781

Males

738

M18-39

738

21M→35K

21.0 - 21.8 mi

Top 2%
×7stories
+17ft-86ft

Overall

432

Males

404

M18-39

404

35K→23M

21.8 - 23.0 mi

Top 2%
×5stories
+23ft-63ft

Overall

630

Males

594

M18-39

594

23M→24M

23.0 - 24.0 mi

Top 3%
×6stories
+12ft-82ft

Overall

838

Males

787

M18-39

787

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

1222

Males

1135

M18-39

1135

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

1206

Males

1108

M18-39

1108

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2stories
+22ft-21ft

Overall

828

Males

781

M18-39

781

Passing Analysis

Category:
Athletes Passed
318
Passed By
346
Net Change
-28
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#725
5K → 10K6812+56#725#669
10K → 15K764-57#669#726
15K → 20K1759-42#726#768
20K → Half026-26#768#794
Half → 25K772-65#794#859
25K → 30K3849-11#859#870
30K → 20M329+23#870#847
20M → 21M249+15#847#832
21M → 35K322+30#832#802
35K → 23M344+30#802#772
23M → 24M206+14#772#758
24M → 40K1117-6#758#764
40K → 25.2M69-3#764#767
25.2M → Finish228+14#767#753
TOTALS318346-28
📊

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