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BOSTON MARATHON 2025

James Crowley

Bib: 29339•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

Start
0:00:00
Race begins
5K· 3.11 mi
26:39
Rank: #20337
Start → 5K
26:39 | 8:35/mi
10K· 6.21 mi
53:33
Rank: #20488 (-151)
5K → 10K
26:54 | 8:39/mi
15K· 9.32 mi
1:20:46
Rank: #20559 (-71)
10K → 15K
27:13 | 8:46/mi
20K· 12.43 mi
1:49:13
Rank: #20852 (-293)
15K → 20K
28:27 | 9:09/mi
Half· 13.11 mi
1:55:21
Rank: #20925 (-73)
20K → Half
6:08 | 8:59/mi
25K· 15.53 mi
2:18:40
Rank: #21234 (-309)
Half → 25K
23:19 | 9:37/mi
30K· 18.64 mi
2:52:01
Rank: #21886 (-652)
25K → 30K
33:21 | 10:44/mi
20M
3:07:01
Rank: #22080 (-194)
30K → 20M
15:00 | 11:02/mi
21M
3:19:39
Rank: #22276 (-196)
20M → 21M
12:38 | 12:38/mi
35K· 21.75 mi
3:27:55
Rank: #22360 (-84)
21M → 35K
8:16 | 11:03/mi
23M
3:43:24
Rank: #22638 (-278)
35K → 23M
15:29 | 12:22/mi
24M
3:56:03
Rank: #22901 (-263)
23M → 24M
12:39 | 12:39/mi
40K· 24.85 mi
4:08:04
Rank: #23202 (-301)
24M → 40K
12:01 | 14:03/mi
25.2M
4:12:29
Rank: #23240 (-38)
40K → 25.2M
4:25 | 12:48/mi
Finish· 26.22 mi
4:23:07
Rank: #23282 (-42)
25.2M → Finish
10:38 | 10:26/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:21
Pace8:48 /mi
2nd Half
Distance13.11 mi
Time2:27:46
Pace11:16 /mi
📊Positive Split: 28.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:4026:398:3526:39
8:35
-
10K
6.21 mi12:11:3453:338:3726:54
8:39
+0:04
15K
9.32 mi12:38:471:20:468:4027:13
8:46
+0:07
20K
12.43 mi13:07:141:49:138:4728:27
9:09
+0:23
Half
13.11 mi13:13:221:55:218:486:08
8:59
-0:10
25K
15.53 mi13:36:412:18:408:5623:19
9:37
+0:38
30K
18.64 mi14:10:022:52:019:1433:21
10:44
+1:07
20M
20.00 mi14:25:023:07:019:2115:00
11:02
+0:18
21M
21.00 mi14:37:403:19:399:3012:38
12:38
+1:36
35K
21.75 mi14:45:563:27:559:348:16
11:03
-1:35
23M
23.00 mi15:01:253:43:249:4315:29
12:22
+1:19
24M
24.00 mi15:14:043:56:039:5012:39
12:39
+0:17
40K
24.85 mi15:26:054:08:049:5912:01
14:03
+1:24
25.2M
25.20 mi15:30:304:12:2910:014:25
12:48
-1:15
Finish
26.22 mi15:41:084:23:0710:0310:38
10:26
-2:22

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

8:35 /mi

Average Pace

10:03 /mi

Slowest Pace

14:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:18:40

53% of race

Time at Steady Pace

1:07:15

26% of race

Time at Slower Pace

57:12

22% of race

Average Pace: 10:02 /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 mi11:44:4026:398:3526:39
8:35
#20337
10K
6.21 mi12:11:3453:338:3726:54
8:39
#20488
15K
9.32 mi12:38:471:20:468:4027:13
8:46
#20559
20K
12.43 mi13:07:141:49:138:4728:27
9:09
#20852
Half
13.11 mi13:13:221:55:218:486:08
8:59
#20925
25K
15.53 mi13:36:412:18:408:5623:19
9:37
#21234
30K
18.64 mi14:10:022:52:019:1433:21
10:44
#21886
20M
20.00 mi14:25:023:07:019:2115:00
11:02
#22080
21M
21.00 mi14:37:403:19:399:3012:38
12:38
#22276
35K
21.75 mi14:45:563:27:559:348:16
11:03
#22360
23M
23.00 mi15:01:253:43:249:4315:29
12:22
#22638
24M
24.00 mi15:14:043:56:039:5012:39
12:39
#22901
40K
24.85 mi15:26:054:08:049:5912:01
14:03
#23202
25.2M
25.20 mi15:30:304:12:2910:014:25
12:48
#23240
Finish
26.22 mi15:41:084:23:0710:0310:38
10:26
#23282
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi20337125751257520812(Top 73%)12864(Top 80%)12864(Top 228%)
10K6.21 mi3.10 mi20488-15112665-9012665-9020651(Top 73%)12766(Top 79%)12766(Top 226%)
15K9.32 mi3.11 mi20559-7112716-5112716-5120812(Top 73%)12864(Top 80%)12864(Top 228%)
20K12.43 mi3.11 mi20852-29312841-12512841-12521711(Top 76%)13220(Top 82%)13220(Top 234%)
Half13.11 mi0.68 mi20925-7312878-3712878-3721775(Top 77%)13263(Top 82%)13263(Top 235%)
25K15.53 mi2.42 mi21234-30913004-12613004-12622247(Top 78%)13405(Top 83%)13405(Top 238%)
30K18.64 mi3.11 mi21886-65213269-26513269-26523469(Top 83%)13816(Top 86%)13816(Top 245%)
20M20.00 mi1.36 mi22080-19413337-6813337-6823661(Top 83%)13827(Top 86%)13827(Top 245%)
21M21.00 mi1.00 mi22276-19613396-5913396-5924571(Top 87%)14171(Top 88%)14171(Top 251%)
35K21.75 mi0.75 mi22360-8413421-2513421-2524308(Top 86%)14021(Top 87%)14021(Top 249%)
23M23.00 mi1.25 mi22638-27813510-8913510-8925616(Top 90%)14634(Top 91%)14634(Top 259%)
24M24.00 mi1.00 mi22901-26313606-9613606-9626487(Top 93%)15053(Top 93%)15053(Top 267%)
40K24.85 mi0.85 mi23202-30113724-11813724-11827217(Top 96%)15396(Top 96%)15396(Top 273%)
25.2M25.20 mi0.35 mi23240-3813743-1913743-1924744(Top 87%)14136(Top 88%)14136(Top 251%)
Finish26.22 mi1.02 mi23282-4213754-1113754-1124124(Top 85%)13829(Top 86%)13829(Top 245%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21stories
+97ft-345ft

Overall

20812

Males

12864

M18-39

12864

5K→10K

3.1 - 6.2 mi

Top 73%
×5stories
+79ft-138ft

Overall

20651

Males

12766

M18-39

12766

10K→15K

6.2 - 9.3 mi

Top 73%
×3stories
+67ft-78ft

Overall

20812

Males

12864

M18-39

12864

15K→20K

9.3 - 12.4 mi

Top 76%
×5stories
+106ft-86ft

Overall

21711

Males

13220

M18-39

13220

20K→Half

12.4 - 13.1 mi

Top 77%
×2stories
+19ft-37ft

Overall

21775

Males

13263

M18-39

13263

Half→25K

13.1 - 15.5 mi

Top 78%
×4stories
+66ft-88ft

Overall

22247

Males

13405

M18-39

13405

25K→30K

15.5 - 18.6 mi

Top 83%
×9stories
+181ft-148ft

Overall

23469

Males

13816

M18-39

13816

30K→20M

18.6 - 20.0 mi

Top 83%
×5stories
+64ft-50ft

Overall

23661

Males

13827

M18-39

13827

20M→21M

20.0 - 21.0 mi

Top 87%
×8stories
+106ft-24ft

Overall

24571

Males

14171

M18-39

14171

21M→35K

21.0 - 21.8 mi

Top 86%
×7stories
+17ft-86ft

Overall

24308

Males

14021

M18-39

14021

35K→23M

21.8 - 23.0 mi

Top 90%
×5stories
+23ft-63ft

Overall

25616

Males

14634

M18-39

14634

23M→24M

23.0 - 24.0 mi

Top 93%
×6stories
+12ft-82ft

Overall

26487

Males

15053

M18-39

15053

24M→40K

24.0 - 24.9 mi

Top 96%
×1story
+6ft-20ft

Overall

27217

Males

15396

M18-39

15396

40K→25.2M

24.9 - 25.2 mi

Top 87%
×1story
+13ft-16ft

Overall

24744

Males

14136

M18-39

14136

25.2M→Finish

25.2 - 26.2 mi

Top 85%
×2stories
+22ft-21ft

Overall

24124

Males

13829

M18-39

13829

Passing Analysis

Category:
Athletes Passed
825
Passed By
3770
Net Change
-2945
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20337
5K → 10K216367-151#20337#20488
10K → 15K170241-71#20488#20559
15K → 20K105398-293#20559#20852
20K → Half1588-73#20852#20925
Half → 25K70379-309#20925#21234
25K → 30K60712-652#21234#21886
30K → 20M46240-194#21886#22080
20M → 21M39235-196#22080#22276
21M → 35K20104-84#22276#22360
35K → 23M22300-278#22360#22638
23M → 24M17280-263#22638#22901
24M → 40K11312-301#22901#23202
40K → 25.2M1048-38#23202#23240
25.2M → Finish2466-42#23240#23282
TOTALS8253770-2945
📊

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