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BOSTON MARATHON 2025

James Lee Brydon

Bib: 3723•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 24%
Gender (Male)
#0 / 16105
Top 36%
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
20:01
Rank: #3433
Start → 5K
20:01 | 6:27/mi
10K· 6.21 mi
40:16
Rank: #3644 (-211)
5K → 10K
20:15 | 6:31/mi
15K· 9.32 mi
1:00:38
Rank: #3735 (-91)
10K → 15K
20:22 | 6:33/mi
20K· 12.43 mi
1:21:39
Rank: #3947 (-212)
15K → 20K
21:01 | 6:46/mi
Half· 13.11 mi
1:26:12
Rank: #3989 (-42)
20K → Half
4:33 | 6:40/mi
25K· 15.53 mi
1:43:07
Rank: #4281 (-292)
Half → 25K
16:55 | 6:59/mi
30K· 18.64 mi
2:06:18
Rank: #4962 (-681)
25K → 30K
23:11 | 7:28/mi
20M
2:16:49
Rank: #5279 (-317)
30K → 20M
10:31 | 7:44/mi
21M
2:24:59
Rank: #5471 (-192)
20M → 21M
8:10 | 8:10/mi
35K· 21.75 mi
2:30:32
Rank: #5547 (-76)
21M → 35K
5:33 | 7:25/mi
23M
2:41:46
Rank: #6003 (-456)
35K → 23M
11:14 | 8:58/mi
24M
2:50:06
Rank: #6238 (-235)
23M → 24M
8:20 | 8:20/mi
40K· 24.85 mi
2:57:37
Rank: #6466 (-228)
24M → 40K
7:31 | 8:47/mi
25.2M
3:01:00
Rank: #6615 (-149)
40K → 25.2M
3:23 | 9:49/mi
Finish· 26.22 mi
3:09:00
Rank: #6766 (-151)
25.2M → Finish
8:00 | 7:51/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:12
Pace6:35 /mi
2nd Half
Distance13.11 mi
Time1:42:48
Pace7:51 /mi
📊Positive Split: 19.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:1020:016:2720:01
6:27
-
10K
6.21 mi10:42:2540:166:2920:15
6:31
+0:04
15K
9.32 mi11:02:471:00:386:3020:22
6:33
+0:02
20K
12.43 mi11:23:481:21:396:3421:01
6:46
+0:13
Half
13.11 mi11:28:211:26:126:354:33
6:40
-0:06
25K
15.53 mi11:45:161:43:076:3816:55
6:59
+0:19
30K
18.64 mi12:08:272:06:186:4723:11
7:28
+0:29
20M
20.00 mi12:18:582:16:496:5010:31
7:44
+0:16
21M
21.00 mi12:27:082:24:596:548:10
8:10
+0:26
35K
21.75 mi12:32:412:30:326:555:33
7:25
-0:45
23M
23.00 mi12:43:552:41:467:0211:14
8:58
+1:33
24M
24.00 mi12:52:152:50:067:058:20
8:20
-0:38
40K
24.85 mi12:59:462:57:377:097:31
8:47
+0:27
25.2M
25.20 mi13:03:093:01:007:113:23
9:49
+1:02
Finish
26.22 mi13:11:093:09:007:138:00
7:51
-1:58

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

6:27 /mi

Average Pace

7:13 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:26:12

46% of race

Time at Steady Pace

1:04:10

34% of race

Time at Slower Pace

38:38

20% of race

Average Pace: 7:12 /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 mi10:22:1020:016:2720:01
6:27
#3433
10K
6.21 mi10:42:2540:166:2920:15
6:31
#3644
15K
9.32 mi11:02:471:00:386:3020:22
6:33
#3735
20K
12.43 mi11:23:481:21:396:3421:01
6:46
#3947
Half
13.11 mi11:28:211:26:126:354:33
6:40
#3989
25K
15.53 mi11:45:161:43:076:3816:55
6:59
#4281
30K
18.64 mi12:08:272:06:186:4723:11
7:28
#4962
20M
20.00 mi12:18:582:16:496:5010:31
7:44
#5279
21M
21.00 mi12:27:082:24:596:548:10
8:10
#5471
35K
21.75 mi12:32:412:30:326:555:33
7:25
#5547
23M
23.00 mi12:43:552:41:467:0211:14
8:58
#6003
24M
24.00 mi12:52:152:50:067:058:20
8:20
#6238
40K
24.85 mi12:59:462:57:377:097:31
8:47
#6466
25.2M
25.20 mi13:03:093:01:007:113:23
9:49
#6615
Finish
26.22 mi13:11:093:09:007:138:00
7:51
#6766
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3433326232623930(Top 14%)3706(Top 23%)3706(Top 66%)
10K6.21 mi3.10 mi3644-2113455-1933455-1933878(Top 14%)3655(Top 23%)3655(Top 65%)
15K9.32 mi3.11 mi3735-913530-753530-753930(Top 14%)3706(Top 23%)3706(Top 66%)
20K12.43 mi3.11 mi3947-2123717-1873717-1874964(Top 17%)4588(Top 28%)4588(Top 81%)
Half13.11 mi0.68 mi3989-423757-403757-405072(Top 18%)4701(Top 29%)4701(Top 83%)
25K15.53 mi2.42 mi4281-2924016-2594016-2596178(Top 22%)5528(Top 34%)5528(Top 98%)
30K18.64 mi3.11 mi4962-6814584-5684584-5687470(Top 26%)6258(Top 39%)6258(Top 111%)
20M20.00 mi1.36 mi5279-3174839-2554839-2558597(Top 30%)6776(Top 42%)6776(Top 120%)
21M21.00 mi1.00 mi5471-1924997-1584997-1588345(Top 29%)6445(Top 40%)6445(Top 114%)
35K21.75 mi0.75 mi5547-765050-535050-538022(Top 28%)6307(Top 39%)6307(Top 112%)
23M23.00 mi1.25 mi6003-4565385-3355385-33516078(Top 57%)10096(Top 63%)10096(Top 179%)
24M24.00 mi1.00 mi6238-2355541-1565541-15613432(Top 47%)8851(Top 55%)8851(Top 157%)
40K24.85 mi0.85 mi6466-2285680-1395680-13915095(Top 53%)9471(Top 59%)9471(Top 168%)
25.2M25.20 mi0.35 mi6615-1495764-845764-8416043(Top 56%)9868(Top 61%)9868(Top 175%)
Finish26.22 mi1.02 mi6766-1515841-775841-7711761(Top 41%)7899(Top 49%)7899(Top 140%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21stories
+97ft-345ft

Overall

3930

Males

3706

M18-39

3706

5K→10K

3.1 - 6.2 mi

Top 14%
×5stories
+79ft-138ft

Overall

3878

Males

3655

M18-39

3655

10K→15K

6.2 - 9.3 mi

Top 14%
×3stories
+67ft-78ft

Overall

3930

Males

3706

M18-39

3706

15K→20K

9.3 - 12.4 mi

Top 17%
×5stories
+106ft-86ft

Overall

4964

Males

4588

M18-39

4588

20K→Half

12.4 - 13.1 mi

Top 18%
×2stories
+19ft-37ft

Overall

5072

Males

4701

M18-39

4701

Half→25K

13.1 - 15.5 mi

Top 22%
×4stories
+66ft-88ft

Overall

6178

Males

5528

M18-39

5528

25K→30K

15.5 - 18.6 mi

Top 26%
×9stories
+181ft-148ft

Overall

7470

Males

6258

M18-39

6258

30K→20M

18.6 - 20.0 mi

Top 30%
×5stories
+64ft-50ft

Overall

8597

Males

6776

M18-39

6776

20M→21M

20.0 - 21.0 mi

Top 29%
×8stories
+106ft-24ft

Overall

8345

Males

6445

M18-39

6445

21M→35K

21.0 - 21.8 mi

Top 28%
×7stories
+17ft-86ft

Overall

8022

Males

6307

M18-39

6307

35K→23M

21.8 - 23.0 mi

Top 57%
×5stories
+23ft-63ft

Overall

16078

Males

10096

M18-39

10096

23M→24M

23.0 - 24.0 mi

Top 47%
×6stories
+12ft-82ft

Overall

13432

Males

8851

M18-39

8851

24M→40K

24.0 - 24.9 mi

Top 53%
×1story
+6ft-20ft

Overall

15095

Males

9471

M18-39

9471

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

16043

Males

9868

M18-39

9868

25.2M→Finish

25.2 - 26.2 mi

Top 41%
×2stories
+22ft-21ft

Overall

11761

Males

7899

M18-39

7899

Passing Analysis

Category:
Athletes Passed
383
Passed By
3716
Net Change
-3333
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3433
5K → 10K46257-211#3433#3644
10K → 15K74165-91#3644#3735
15K → 20K46258-212#3735#3947
20K → Half648-42#3947#3989
Half → 25K26318-292#3989#4281
25K → 30K38719-681#4281#4962
30K → 20M19336-317#4962#5279
20M → 21M26218-192#5279#5471
21M → 35K26102-76#5471#5547
35K → 23M21477-456#5547#6003
23M → 24M17252-235#6003#6238
24M → 40K11239-228#6238#6466
40K → 25.2M2151-149#6466#6615
25.2M → Finish25176-151#6615#6766
TOTALS3833716-3333
📊

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