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BOSTON MARATHON 2025

Jim Duffy

Bib: 24656•M

VA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M70-74)
#0 / 228
Top 12%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:10
Rank: #21211
Start → 5K
27:10 | 8:45/mi
10K· 6.21 mi
54:08
Rank: #20962 (+249)
5K → 10K
26:58 | 8:41/mi
15K· 9.32 mi
1:21:20
Rank: #20884 (+78)
10K → 15K
27:12 | 8:45/mi
20K· 12.43 mi
1:49:20
Rank: #20920 (-36)
15K → 20K
28:00 | 9:01/mi
Half· 13.11 mi
1:55:11
Rank: #20852 (+68)
20K → Half
5:51 | 8:34/mi
25K· 15.53 mi
2:16:30
Rank: #20555 (+297)
Half → 25K
21:19 | 8:48/mi
30K· 18.64 mi
2:44:54
Rank: #20113 (+442)
25K → 30K
28:24 | 9:08/mi
20M
2:57:26
Rank: #19940 (+173)
30K → 20M
12:32 | 9:13/mi
21M
3:07:19
Rank: #19805 (+135)
20M → 21M
9:53 | 9:53/mi
35K· 21.75 mi
3:14:03
Rank: #19740 (+65)
21M → 35K
6:44 | 9:00/mi
23M
3:25:27
Rank: #19572 (+168)
35K → 23M
11:24 | 9:06/mi
24M
3:34:19
Rank: #19453 (+119)
23M → 24M
8:52 | 8:52/mi
40K· 24.85 mi
3:42:02
Rank: #19333 (+120)
24M → 40K
7:43 | 9:02/mi
25.2M
3:45:22
Rank: #19247 (+86)
40K → 25.2M
3:20 | 9:40/mi
Finish· 26.22 mi
3:54:01
Rank: #19142 (+105)
25.2M → Finish
8:39 | 8:29/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:11
Pace8:47 /mi
2nd Half
Distance13.11 mi
Time1:58:50
Pace9:04 /mi
📊Positive Split: 3.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:28:3427:108:4527:10
8:45
-
10K
6.21 mi11:55:3254:088:4326:58
8:41
-0:04
15K
9.32 mi12:22:441:21:208:4427:12
8:45
+0:04
20K
12.43 mi12:50:441:49:208:4828:00
9:01
+0:16
Half
13.11 mi12:56:351:55:118:475:51
8:34
-0:27
25K
15.53 mi13:17:542:16:308:4721:19
8:48
+0:14
30K
18.64 mi13:46:182:44:548:5128:24
9:08
+0:20
20M
20.00 mi13:58:502:57:268:5212:32
9:13
+0:05
21M
21.00 mi14:08:433:07:198:559:53
9:53
+0:40
35K
21.75 mi14:15:273:14:038:556:44
9:00
-0:53
23M
23.00 mi14:26:513:25:278:5611:24
9:06
+0:06
24M
24.00 mi14:35:433:34:198:568:52
8:52
-0:14
40K
24.85 mi14:43:263:42:028:567:43
9:02
+0:10
25.2M
25.20 mi14:46:463:45:228:573:20
9:40
+0:38
Finish
26.22 mi14:55:253:54:018:568:39
8:29
-1:11

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

8:29 /mi

Average Pace

8:56 /mi

Slowest Pace

9:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:40:48

94% of race

Time at Steady Pace

13:13

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:56 /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 mi11:28:3427:108:4527:10
8:45
#21211
10K
6.21 mi11:55:3254:088:4326:58
8:41
#20962
15K
9.32 mi12:22:441:21:208:4427:12
8:45
#20884
20K
12.43 mi12:50:441:49:208:4828:00
9:01
#20920
Half
13.11 mi12:56:351:55:118:475:51
8:34
#20852
25K
15.53 mi13:17:542:16:308:4721:19
8:48
#20555
30K
18.64 mi13:46:182:44:548:5128:24
9:08
#20113
20M
20.00 mi13:58:502:57:268:5212:32
9:13
#19940
21M
21.00 mi14:08:433:07:198:559:53
9:53
#19805
35K
21.75 mi14:15:273:14:038:556:44
9:00
#19740
23M
23.00 mi14:26:513:25:278:5611:24
9:06
#19572
24M
24.00 mi14:35:433:34:198:568:52
8:52
#19453
40K
24.85 mi14:43:263:42:028:567:43
9:02
#19333
25.2M
25.20 mi14:46:463:45:228:573:20
9:40
#19247
Finish
26.22 mi14:55:253:54:018:568:39
8:29
#19142
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM70-74Seg. OverallSeg. MalesSeg. M70-74
5K3.11 mi3.11 mi21211129501295020776(Top 73%)12844(Top 80%)12844(Top 5633%)
10K6.21 mi3.10 mi20962+24912871+7912871+7920752(Top 73%)12802(Top 79%)12802(Top 5615%)
15K9.32 mi3.11 mi20884+7812848+2312848+2320776(Top 73%)12844(Top 80%)12844(Top 5633%)
20K12.43 mi3.11 mi20920-3612875-2712875-2721031(Top 74%)12897(Top 80%)12897(Top 5657%)
Half13.11 mi0.68 mi20852+6812842+3312842+3319638(Top 69%)12312(Top 76%)12312(Top 5400%)
25K15.53 mi2.42 mi20555+29712696+14612696+14618880(Top 66%)11917(Top 74%)11917(Top 5227%)
30K18.64 mi3.11 mi20113+44212468+22812468+22818355(Top 65%)11543(Top 72%)11543(Top 5063%)
20M20.00 mi1.36 mi19940+17312373+9512373+9517881(Top 63%)11197(Top 70%)11197(Top 4911%)
21M21.00 mi1.00 mi19805+13512288+8512288+8517836(Top 63%)11085(Top 69%)11085(Top 4862%)
35K21.75 mi0.75 mi19740+6512246+4212246+4218213(Top 64%)11149(Top 69%)11149(Top 4890%)
23M23.00 mi1.25 mi19572+16812138+10812138+10816834(Top 59%)10446(Top 65%)10446(Top 4582%)
24M24.00 mi1.00 mi19453+11912062+7612062+7616663(Top 59%)10328(Top 64%)10328(Top 4530%)
40K24.85 mi0.85 mi19333+12011999+6311999+6316444(Top 58%)10127(Top 63%)10127(Top 4442%)
25.2M25.20 mi0.35 mi19247+8611945+5411945+5415421(Top 54%)9616(Top 60%)9616(Top 4218%)
Finish26.22 mi1.02 mi19142+10511878+6711878+6716138(Top 57%)10004(Top 62%)10004(Top 4388%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21stories
+97ft-345ft

Overall

20776

Males

12844

M70-74

12844

5K→10K

3.1 - 6.2 mi

Top 73%
×5stories
+79ft-138ft

Overall

20752

Males

12802

M70-74

12802

10K→15K

6.2 - 9.3 mi

Top 73%
×3stories
+67ft-78ft

Overall

20776

Males

12844

M70-74

12844

15K→20K

9.3 - 12.4 mi

Top 74%
×5stories
+106ft-86ft

Overall

21031

Males

12897

M70-74

12897

20K→Half

12.4 - 13.1 mi

Top 69%
×2stories
+19ft-37ft

Overall

19638

Males

12312

M70-74

12312

Half→25K

13.1 - 15.5 mi

Top 66%
×4stories
+66ft-88ft

Overall

18880

Males

11917

M70-74

11917

25K→30K

15.5 - 18.6 mi

Top 65%
×9stories
+181ft-148ft

Overall

18355

Males

11543

M70-74

11543

30K→20M

18.6 - 20.0 mi

Top 63%
×5stories
+64ft-50ft

Overall

17881

Males

11197

M70-74

11197

20M→21M

20.0 - 21.0 mi

Top 63%
×8stories
+106ft-24ft

Overall

17836

Males

11085

M70-74

11085

21M→35K

21.0 - 21.8 mi

Top 64%
×7stories
+17ft-86ft

Overall

18213

Males

11149

M70-74

11149

35K→23M

21.8 - 23.0 mi

Top 59%
×5stories
+23ft-63ft

Overall

16834

Males

10446

M70-74

10446

23M→24M

23.0 - 24.0 mi

Top 59%
×6stories
+12ft-82ft

Overall

16663

Males

10328

M70-74

10328

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

16444

Males

10127

M70-74

10127

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

15421

Males

9616

M70-74

9616

25.2M→Finish

25.2 - 26.2 mi

Top 57%
×2stories
+22ft-21ft

Overall

16138

Males

10004

M70-74

10004

Passing Analysis

Category:
Athletes Passed
2813
Passed By
744
Net Change
+2069
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21211
5K → 10K424175+249#21211#20962
10K → 15K220142+78#20962#20884
15K → 20K183219-36#20884#20920
20K → Half713+68#20920#20852
Half → 25K33134+297#20852#20555
25K → 30K47836+442#20555#20113
30K → 20M20128+173#20113#19940
20M → 21M16732+135#19940#19805
21M → 35K8217+65#19805#19740
35K → 23M18820+168#19740#19572
23M → 24M13011+119#19572#19453
24M → 40K1288+120#19453#19333
40K → 25.2M882+86#19333#19247
25.2M → Finish12217+105#19247#19142
TOTALS2813744+2069
📊

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