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BOSTON MARATHON 2025

Justin Devlin

Bib: 31293•M

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
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
10:36/mi
32:56
↑ 97↓ 3451.5%
10K· 6.21 mi
10:44/mi
1:06:17
↑ 79↓ 1380.4%
15K· 9.32 mi
10:29/mi
1:38:52
↑ 67↓ 78
20K· 12.43 mi
10:25/mi
2:11:13
↑ 106↓ 860.1%
Half· 13.11 mi
9:59/mi
2:18:02
↑ 19↓ 370.5%
25K· 15.53 mi
11:46/mi
2:46:33
↑ 66↓ 880.2%
30K· 18.64 mi
10:31/mi
3:19:13
↑ 181↓ 1480.2%
20M
10:32/mi
3:33:32
↑ 64↓ 500.2%
21M
12:04/mi
3:45:36
↑ 106↓ 241.6%
35K· 21.75 mi
10:50/mi
3:53:42
↑ 17↓ 861.7%
23M
15:02/mi
4:12:31
↑ 23↓ 630.6%
24M
13:08/mi
4:25:39
↓ 821.3%
40K· 24.85 mi
15:09/mi
4:38:36
↓ 200.3%
25.2M
11:33/mi
4:42:35
↑ 13↓ 160.2%
Finish· 26.22 mi
12:58/mi
4:55:48
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:18:02
Pace10:32 /mi
2nd Half
Distance13.11 mi
Time2:37:46
Pace12:02 /mi
📊Positive Split: 14.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:58:5832:5610:3632:56
10:36
-
10K
6.21 mi12:32:191:06:1710:4033:21
10:44
+0:08
15K
9.32 mi13:04:541:38:5210:3632:35
10:29
-0:15
20K
12.43 mi13:37:152:11:1310:3432:21
10:25
-0:04
Half
13.11 mi13:44:042:18:0210:326:49
9:59
-0:26
25K
15.53 mi14:12:352:46:3310:4328:31
11:46
+1:47
30K
18.64 mi14:45:153:19:1310:4132:40
10:31
-1:15
20M
20.00 mi14:59:343:33:3210:4114:19
10:32
+0:01
21M
21.00 mi15:11:383:45:3610:4512:04
12:04
+1:32
35K
21.75 mi15:19:443:53:4210:458:06
10:50
-1:14
23M
23.00 mi15:38:334:12:3110:5918:49
15:02
+4:12
24M
24.00 mi15:51:414:25:3911:0413:08
13:08
-1:54
40K
24.85 mi16:04:384:38:3611:1312:57
15:09
+2:01
25.2M
25.20 mi16:08:374:42:3511:133:59
11:33
-3:36
Finish
26.22 mi16:21:504:55:4811:1713:13
12:58
+1:25

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

9:59 /mi

Average Pace

11:17 /mi

Slowest Pace

15:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

6:49

2% of race

Time at Steady Pace

3:10:17

64% of race

Time at Slower Pace

1:38:42

33% of race

Average Pace: 11:17 /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 mi11:58:5832:5610:3632:56
10:36
#26962
10K
6.21 mi12:32:191:06:1710:4033:21
10:44
#26797
15K
9.32 mi13:04:541:38:5210:3632:35
10:29
#26476
20K
12.43 mi13:37:152:11:1310:3432:21
10:25
#26082
Half
13.11 mi13:44:042:18:0210:326:49
9:59
#26007
25K
15.53 mi14:12:352:46:3310:4328:31
11:46
#26071
30K
18.64 mi14:45:153:19:1310:4132:40
10:31
#25574
20M
20.00 mi14:59:343:33:3210:4114:19
10:32
#25377
21M
21.00 mi15:11:383:45:3610:4512:04
12:04
#25293
35K
21.75 mi15:19:443:53:4210:458:06
10:50
#25257
23M
23.00 mi15:38:334:12:3110:5918:49
15:02
#25540
24M
24.00 mi15:51:414:25:3911:0413:08
13:08
#25655
40K
24.85 mi16:04:384:38:3611:1312:57
15:09
#25814
25.2M
25.20 mi16:08:374:42:3511:133:59
11:33
#25775
Finish
26.22 mi16:21:504:55:4811:1713:13
12:58
#25897
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi26962155891558925918(Top 91%)15106(Top 94%)15106(Top 268%)
10K6.21 mi3.10 mi26797+16515508+8115508+8126657(Top 94%)15438(Top 96%)15438(Top 274%)
15K9.32 mi3.11 mi26476+32115371+13715371+13725918(Top 91%)15106(Top 94%)15106(Top 268%)
20K12.43 mi3.11 mi26082+39415183+18815183+18825047(Top 88%)14698(Top 91%)14698(Top 261%)
Half13.11 mi0.68 mi26007+7515147+3615147+3624815(Top 87%)14585(Top 91%)14585(Top 259%)
25K15.53 mi2.42 mi26071-6415171-2415171-2426165(Top 92%)15147(Top 94%)15147(Top 268%)
30K18.64 mi3.11 mi25574+49714903+26814903+26822971(Top 81%)13602(Top 84%)13602(Top 241%)
20M20.00 mi1.36 mi25377+19714810+9314810+9322530(Top 79%)13305(Top 83%)13305(Top 236%)
21M21.00 mi1.00 mi25293+8414756+5414756+5423711(Top 83%)13782(Top 86%)13782(Top 244%)
35K21.75 mi0.75 mi25257+3614737+1914737+1923875(Top 84%)13836(Top 86%)13836(Top 245%)
23M23.00 mi1.25 mi25540-28314851-11414851-11427924(Top 98%)15795(Top 98%)15795(Top 280%)
24M24.00 mi1.00 mi25655-11514887-3614887-3626993(Top 95%)15294(Top 95%)15294(Top 271%)
40K24.85 mi0.85 mi25814-15914957-7014957-7027829(Top 98%)15734(Top 98%)15734(Top 279%)
25.2M25.20 mi0.35 mi25775+3914934+2314934+2322187(Top 78%)12892(Top 80%)12892(Top 229%)
Finish26.22 mi1.02 mi25897-12214993-5914993-5927612(Top 97%)15625(Top 97%)15625(Top 277%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 91%
×21story building
+97ft-345ft

Overall

25918

Males

15106

M18-39

15106

5K→10K

3.1 - 6.2 mi

Top 94%
×5story building
+79ft-138ft

Overall

26657

Males

15438

M18-39

15438

10K→15K

6.2 - 9.3 mi

Top 91%
×3story building
+67ft-78ft

Overall

25918

Males

15106

M18-39

15106

15K→20K

9.3 - 12.4 mi

Top 88%
×5story building
+106ft-86ft

Overall

25047

Males

14698

M18-39

14698

20K→Half

12.4 - 13.1 mi

Top 87%
×2story building
+19ft-37ft

Overall

24815

Males

14585

M18-39

14585

Half→25K

13.1 - 15.5 mi

Top 92%
×4story building
+66ft-88ft

Overall

26165

Males

15147

M18-39

15147

25K→30K

15.5 - 18.6 mi

Top 81%
×9story building
+181ft-148ft

Overall

22971

Males

13602

M18-39

13602

30K→20M

18.6 - 20.0 mi

Top 79%
×5story building
+64ft-50ft

Overall

22530

Males

13305

M18-39

13305

20M→21M

20.0 - 21.0 mi

Top 83%
×8story building
+106ft-24ft

Overall

23711

Males

13782

M18-39

13782

21M→35K

21.0 - 21.8 mi

Top 84%
×7story building
+17ft-86ft

Overall

23875

Males

13836

M18-39

13836

35K→23M

21.8 - 23.0 mi

Top 98%
×5story building
+23ft-63ft

Overall

27924

Males

15795

M18-39

15795

23M→24M

23.0 - 24.0 mi

Top 95%
×6story building
+12ft-82ft

Overall

26993

Males

15294

M18-39

15294

24M→40K

24.0 - 24.9 mi

Top 98%
×1story
+6ft-20ft

Overall

27829

Males

15734

M18-39

15734

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

22187

Males

12892

M18-39

12892

25.2M→Finish

25.2 - 26.2 mi

Top 97%
×2story building
+22ft-21ft

Overall

27612

Males

15625

M18-39

15625

Passing Analysis

Category:
Athletes Passed
2018
Passed By
953
Net Change
+1065
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26962
5K → 10K25388+165#26962#26797
10K → 15K33211+321#26797#26476
15K → 20K3973+394#26476#26082
20K → Half772+75#26082#26007
Half → 25K56120-64#26007#26071
25K → 30K4992+497#26071#25574
30K → 20M1981+197#25574#25377
20M → 21M9713+84#25377#25293
21M → 35K4610+36#25293#25257
35K → 23M2285-283#25257#25540
23M → 24M15130-115#25540#25655
24M → 40K5164-159#25655#25814
40K → 25.2M390+39#25814#25775
25.2M → Finish2124-122#25775#25897
TOTALS2018953+1065
📊

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