Boston Marathon logo
BOSTON MARATHON 2025

John Buckley

Bib: 30835•M

MA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
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
31:21
Rank: #25796
Start → 5K
31:21 | 10:05/mi
10K· 6.21 mi
1:04:16
Rank: #26181 (-385)
5K → 10K
32:55 | 10:36/mi
15K· 9.32 mi
1:37:00
Rank: #26090 (+91)
10K → 15K
32:44 | 10:32/mi
20K· 12.43 mi
2:10:19
Rank: #25953 (+137)
15K → 20K
33:19 | 10:43/mi
Half· 13.11 mi
2:17:26
Rank: #25925 (+28)
20K → Half
7:07 | 10:26/mi
25K· 15.53 mi
2:44:45
Rank: #25885 (+40)
Half → 25K
27:19 | 11:16/mi
30K· 18.64 mi
3:21:00
Rank: #25738 (+147)
25K → 30K
36:15 | 11:40/mi
20M
3:37:34
Rank: #25715 (+23)
30K → 20M
16:34 | 12:11/mi
21M
3:51:25
Rank: #25753 (-38)
20M → 21M
13:51 | 13:51/mi
35K· 21.75 mi
3:59:49
Rank: #25731 (+22)
21M → 35K
8:24 | 11:14/mi
23M
4:15:21
Rank: #25749 (-18)
35K → 23M
15:32 | 12:24/mi
24M
4:28:17
Rank: #25815 (-66)
23M → 24M
12:56 | 12:56/mi
40K· 24.85 mi
4:40:22
Rank: #25924 (-109)
24M → 40K
12:05 | 14:08/mi
25.2M
4:45:21
Rank: #25948 (-24)
40K → 25.2M
4:59 | 14:27/mi
Finish· 26.22 mi
4:56:46
Rank: #25961 (-13)
25.2M → Finish
11:25 | 11:12/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:17:26
Pace10:29 /mi
2nd Half
Distance13.11 mi
Time2:39:20
Pace12:09 /mi
📊Positive Split: 15.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:55:1431:2110:0531:21
10:05
-
10K
6.21 mi12:28:091:04:1610:2132:55
10:36
+0:31
15K
9.32 mi13:00:531:37:0010:2432:44
10:32
-0:04
20K
12.43 mi13:34:122:10:1910:2933:19
10:43
+0:11
Half
13.11 mi13:41:192:17:2610:297:07
10:26
-0:17
25K
15.53 mi14:08:382:44:4510:3627:19
11:16
+0:50
30K
18.64 mi14:44:533:21:0010:4736:15
11:40
+0:24
20M
20.00 mi15:01:273:37:3410:5316:34
12:11
+0:31
21M
21.00 mi15:15:183:51:2511:0113:51
13:51
+1:40
35K
21.75 mi15:23:423:59:4911:028:24
11:14
-2:37
23M
23.00 mi15:39:144:15:2111:0615:32
12:24
+1:10
24M
24.00 mi15:52:104:28:1711:1112:56
12:56
+0:32
40K
24.85 mi16:04:154:40:2211:1712:05
14:08
+1:12
25.2M
25.20 mi16:09:144:45:2111:194:59
14:27
+0:19
Finish
26.22 mi16:20:394:56:4611:2011:25
11:12
-3:15

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

10:05 /mi

Average Pace

11:20 /mi

Slowest Pace

14:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:11:12

24% of race

Time at Steady Pace

2:29:37

50% of race

Time at Slower Pace

1:15:57

26% of race

Average Pace: 11:19 /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 mi11:55:1431:2110:0531:21
10:05
#25796
10K
6.21 mi12:28:091:04:1610:2132:55
10:36
#26181
15K
9.32 mi13:00:531:37:0010:2432:44
10:32
#26090
20K
12.43 mi13:34:122:10:1910:2933:19
10:43
#25953
Half
13.11 mi13:41:192:17:2610:297:07
10:26
#25925
25K
15.53 mi14:08:382:44:4510:3627:19
11:16
#25885
30K
18.64 mi14:44:533:21:0010:4736:15
11:40
#25738
20M
20.00 mi15:01:273:37:3410:5316:34
12:11
#25715
21M
21.00 mi15:15:183:51:2511:0113:51
13:51
#25753
35K
21.75 mi15:23:423:59:4911:028:24
11:14
#25731
23M
23.00 mi15:39:144:15:2111:0615:32
12:24
#25749
24M
24.00 mi15:52:104:28:1711:1112:56
12:56
#25815
40K
24.85 mi16:04:154:40:2211:1712:05
14:08
#25924
25.2M
25.20 mi16:09:144:45:2111:194:59
14:27
#25948
Finish
26.22 mi16:20:394:56:4611:2011:25
11:12
#25961
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi25796150931509326007(Top 92%)15148(Top 94%)15148(Top 268%)
10K6.21 mi3.10 mi26181-38515244-15115244-15126429(Top 93%)15337(Top 95%)15337(Top 272%)
15K9.32 mi3.11 mi26090+9115194+5015194+5026007(Top 92%)15148(Top 94%)15148(Top 268%)
20K12.43 mi3.11 mi25953+13715127+6715127+6725585(Top 90%)14939(Top 93%)14939(Top 265%)
Half13.11 mi0.68 mi25925+2815111+1615111+1625692(Top 90%)14971(Top 93%)14971(Top 265%)
25K15.53 mi2.42 mi25885+4015088+2315088+2325574(Top 90%)14890(Top 92%)14890(Top 264%)
30K18.64 mi3.11 mi25738+14714984+10414984+10425096(Top 88%)14574(Top 90%)14574(Top 258%)
20M20.00 mi1.36 mi25715+2314961+2314961+2325527(Top 90%)14694(Top 91%)14694(Top 260%)
21M21.00 mi1.00 mi25753-3814967-614967-626061(Top 92%)14914(Top 93%)14914(Top 264%)
35K21.75 mi0.75 mi25731+2214953+1414953+1424661(Top 87%)14193(Top 88%)14193(Top 252%)
23M23.00 mi1.25 mi25749-1814945+814945+825671(Top 90%)14665(Top 91%)14665(Top 260%)
24M24.00 mi1.00 mi25815-6614969-2414969-2426791(Top 94%)15196(Top 94%)15196(Top 269%)
40K24.85 mi0.85 mi25924-10915020-5115020-5127278(Top 96%)15429(Top 96%)15429(Top 273%)
25.2M25.20 mi0.35 mi25948-2415026-615026-626711(Top 94%)15121(Top 94%)15121(Top 268%)
Finish26.22 mi1.02 mi25961-1315024+215024+225707(Top 91%)14639(Top 91%)14639(Top 259%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 92%
×21stories
+97ft-345ft

Overall

26007

Males

15148

M18-39

15148

5K→10K

3.1 - 6.2 mi

Top 93%
×5stories
+79ft-138ft

Overall

26429

Males

15337

M18-39

15337

10K→15K

6.2 - 9.3 mi

Top 92%
×3stories
+67ft-78ft

Overall

26007

Males

15148

M18-39

15148

15K→20K

9.3 - 12.4 mi

Top 90%
×5stories
+106ft-86ft

Overall

25585

Males

14939

M18-39

14939

20K→Half

12.4 - 13.1 mi

Top 90%
×2stories
+19ft-37ft

Overall

25692

Males

14971

M18-39

14971

Half→25K

13.1 - 15.5 mi

Top 90%
×4stories
+66ft-88ft

Overall

25574

Males

14890

M18-39

14890

25K→30K

15.5 - 18.6 mi

Top 88%
×9stories
+181ft-148ft

Overall

25096

Males

14574

M18-39

14574

30K→20M

18.6 - 20.0 mi

Top 90%
×5stories
+64ft-50ft

Overall

25527

Males

14694

M18-39

14694

20M→21M

20.0 - 21.0 mi

Top 92%
×8stories
+106ft-24ft

Overall

26061

Males

14914

M18-39

14914

21M→35K

21.0 - 21.8 mi

Top 87%
×7stories
+17ft-86ft

Overall

24661

Males

14193

M18-39

14193

35K→23M

21.8 - 23.0 mi

Top 90%
×5stories
+23ft-63ft

Overall

25671

Males

14665

M18-39

14665

23M→24M

23.0 - 24.0 mi

Top 94%
×6stories
+12ft-82ft

Overall

26791

Males

15196

M18-39

15196

24M→40K

24.0 - 24.9 mi

Top 96%
×1story
+6ft-20ft

Overall

27278

Males

15429

M18-39

15429

40K→25.2M

24.9 - 25.2 mi

Top 94%
×1story
+13ft-16ft

Overall

26711

Males

15121

M18-39

15121

25.2M→Finish

25.2 - 26.2 mi

Top 91%
×2stories
+22ft-21ft

Overall

25707

Males

14639

M18-39

14639

Passing Analysis

Category:
Athletes Passed
985
Passed By
1150
Net Change
-165
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25796
5K → 10K73458-385#25796#26181
10K → 15K17079+91#26181#26090
15K → 20K18952+137#26090#25953
20K → Half346+28#25953#25925
Half → 25K11474+40#25925#25885
25K → 30K18639+147#25885#25738
30K → 20M6340+23#25738#25715
20M → 21M3270-38#25715#25753
21M → 35K4220+22#25753#25731
35K → 23M3755-18#25731#25749
23M → 24M1581-66#25749#25815
24M → 40K3112-109#25815#25924
40K → 25.2M731-24#25924#25948
25.2M → Finish2033-13#25948#25961
TOTALS9851150-165
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing