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BOSTON MARATHON 2025

Alex Brown

Bib: 28585•M

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
28:08
Rank: #22651
Start → 5K
9:03/mi
28:08 split
10K· 6.21 mi
56:48
Rank: #22983 (-332)
5K → 10K
9:14/mi
28:40 split
15K· 9.32 mi
1:24:50
Rank: #22706 (+277)
10K → 15K
9:01/mi
28:02 split
20K· 12.43 mi
1:53:20
Rank: #22442 (+264)
15K → 20K
9:10/mi
28:30 split
Half· 13.11 mi
1:59:30
Rank: #22404 (+38)
20K → Half
9:02/mi
6:10 split
25K· 15.53 mi
2:22:12
Rank: #22254 (+150)
Half → 25K
9:22/mi
22:42 split
30K· 18.64 mi
2:52:48
Rank: #22050 (+204)
25K → 30K
9:51/mi
30:36 split
20M
3:07:27
Rank: #22155 (-105)
30K → 20M
10:47/mi
14:39 split
21M
3:19:41
Rank: #22283 (-128)
20M → 21M
12:14/mi
12:14 split
35K· 21.75 mi
3:27:43
Rank: #22340 (-57)
21M → 35K
10:44/mi
8:02 split
23M
3:41:50
Rank: #22426 (-86)
35K → 23M
11:16/mi
14:07 split
24M
3:53:17
Rank: #22544 (-118)
23M → 24M
11:27/mi
11:27 split
40K· 24.85 mi
4:03:39
Rank: #22677 (-133)
24M → 40K
12:07/mi
10:22 split
25.2M
4:07:58
Rank: #22713 (-36)
40K → 25.2M
12:31/mi
4:19 split
Finish· 26.22 mi
4:18:32
Rank: #22773 (-60)
25.2M → Finish
10:22/mi
10:34 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:59:30
Pace9:07 /mi
2nd Half
Distance13.11 mi
Time2:19:02
Pace10:36 /mi
📊Positive Split: 16.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:1528:089:0328:08
9:03
-
10K
6.21 mi12:21:5556:489:0828:40
9:14
+0:11
15K
9.32 mi12:49:571:24:509:0628:02
9:01
-0:13
20K
12.43 mi13:18:271:53:209:0728:30
9:10
+0:09
Half
13.11 mi13:24:371:59:309:076:10
9:02
-0:08
25K
15.53 mi13:47:192:22:129:0922:42
9:22
+0:20
30K
18.64 mi14:17:552:52:489:1630:36
9:51
+0:29
20M
20.00 mi14:32:343:07:279:2214:39
10:47
+0:56
21M
21.00 mi14:44:483:19:419:3112:14
12:14
+1:27
35K
21.75 mi14:52:503:27:439:338:02
10:44
-1:30
23M
23.00 mi15:06:573:41:509:3914:07
11:16
+0:32
24M
24.00 mi15:18:243:53:179:4311:27
11:27
+0:11
40K
24.85 mi15:28:464:03:399:4810:22
12:07
+0:40
25.2M
25.20 mi15:33:054:07:589:504:19
12:31
+0:24
Finish
26.22 mi15:43:394:18:329:5210:34
10:22
-2:09

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

9:01 /mi

Average Pace

9:52 /mi

Slowest Pace

12:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:22:12

55% of race

Time at Steady Pace

1:03:51

25% of race

Time at Slower Pace

52:29

20% of race

Average Pace: 9:52 /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 mi11:53:1528:089:0328:08
9:03
#22651
10K
6.21 mi12:21:5556:489:0828:40
9:14
#22983
15K
9.32 mi12:49:571:24:509:0628:02
9:01
#22706
20K
12.43 mi13:18:271:53:209:0728:30
9:10
#22442
Half
13.11 mi13:24:371:59:309:076:10
9:02
#22404
25K
15.53 mi13:47:192:22:129:0922:42
9:22
#22254
30K
18.64 mi14:17:552:52:489:1630:36
9:51
#22050
20M
20.00 mi14:32:343:07:279:2214:39
10:47
#22155
21M
21.00 mi14:44:483:19:419:3112:14
12:14
#22283
35K
21.75 mi14:52:503:27:439:338:02
10:44
#22340
23M
23.00 mi15:06:573:41:509:3914:07
11:16
#22426
24M
24.00 mi15:18:243:53:179:4311:27
11:27
#22544
40K
24.85 mi15:28:464:03:399:4810:22
12:07
#22677
25.2M
25.20 mi15:33:054:07:589:504:19
12:31
#22713
Finish
26.22 mi15:43:394:18:329:5210:34
10:22
#22773
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi22651135971359722129(Top 78%)13442(Top 83%)13442(Top 238%)
10K6.21 mi3.10 mi22983-33213779-18213779-18223289(Top 82%)13935(Top 87%)13935(Top 247%)
15K9.32 mi3.11 mi22706+27713681+9813681+9822129(Top 78%)13442(Top 83%)13442(Top 238%)
20K12.43 mi3.11 mi22442+26413548+13313548+13321779(Top 77%)13248(Top 82%)13248(Top 235%)
Half13.11 mi0.68 mi22404+3813521+2713521+2721948(Top 77%)13307(Top 83%)13307(Top 236%)
25K15.53 mi2.42 mi22254+15013451+7013451+7021396(Top 75%)13034(Top 81%)13034(Top 231%)
30K18.64 mi3.11 mi22050+20413340+11113340+11121147(Top 74%)12777(Top 79%)12777(Top 226%)
20M20.00 mi1.36 mi22155-10513369-2913369-2923124(Top 81%)13581(Top 84%)13581(Top 241%)
21M21.00 mi1.00 mi22283-12813398-2913398-2923979(Top 84%)13894(Top 86%)13894(Top 246%)
35K21.75 mi0.75 mi22340-5713409-1113409-1123646(Top 83%)13705(Top 85%)13705(Top 243%)
23M23.00 mi1.25 mi22426-8613410-113410-123824(Top 84%)13746(Top 85%)13746(Top 244%)
24M24.00 mi1.00 mi22544-11813443-3313443-3324808(Top 87%)14200(Top 88%)14200(Top 252%)
40K24.85 mi0.85 mi22677-13313493-5013493-5025109(Top 88%)14314(Top 89%)14314(Top 254%)
25.2M25.20 mi0.35 mi22713-3613500-713500-724183(Top 85%)13846(Top 86%)13846(Top 245%)
Finish26.22 mi1.02 mi22773-6013508-813508-823948(Top 84%)13736(Top 85%)13736(Top 243%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21story building
+97ft-345ft

Overall

22129

Males

13442

M18-39

13442

5K→10K

3.1 - 6.2 mi

Top 82%
×5story building
+79ft-138ft

Overall

23289

Males

13935

M18-39

13935

10K→15K

6.2 - 9.3 mi

Top 78%
×3story building
+67ft-78ft

Overall

22129

Males

13442

M18-39

13442

15K→20K

9.3 - 12.4 mi

Top 77%
×5story building
+106ft-86ft

Overall

21779

Males

13248

M18-39

13248

20K→Half

12.4 - 13.1 mi

Top 77%
×2story building
+19ft-37ft

Overall

21948

Males

13307

M18-39

13307

Half→25K

13.1 - 15.5 mi

Top 75%
×4story building
+66ft-88ft

Overall

21396

Males

13034

M18-39

13034

25K→30K

15.5 - 18.6 mi

Top 74%
×9story building
+181ft-148ft

Overall

21147

Males

12777

M18-39

12777

30K→20M

18.6 - 20.0 mi

Top 81%
×5story building
+64ft-50ft

Overall

23124

Males

13581

M18-39

13581

20M→21M

20.0 - 21.0 mi

Top 84%
×8story building
+106ft-24ft

Overall

23979

Males

13894

M18-39

13894

21M→35K

21.0 - 21.8 mi

Top 83%
×7story building
+17ft-86ft

Overall

23646

Males

13705

M18-39

13705

35K→23M

21.8 - 23.0 mi

Top 84%
×5story building
+23ft-63ft

Overall

23824

Males

13746

M18-39

13746

23M→24M

23.0 - 24.0 mi

Top 87%
×6story building
+12ft-82ft

Overall

24808

Males

14200

M18-39

14200

24M→40K

24.0 - 24.9 mi

Top 88%
×1story
+6ft-20ft

Overall

25109

Males

14314

M18-39

14314

40K→25.2M

24.9 - 25.2 mi

Top 85%
×1story
+13ft-16ft

Overall

24183

Males

13846

M18-39

13846

25.2M→Finish

25.2 - 26.2 mi

Top 84%
×2story building
+22ft-21ft

Overall

23948

Males

13736

M18-39

13736

Passing Analysis

Category:
Athletes Passed
1587
Passed By
1709
Net Change
-122
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22651
5K → 10K116448-332#22651#22983
10K → 15K33861+277#22983#22706
15K → 20K31147+264#22706#22442
20K → Half5517+38#22442#22404
Half → 25K21161+150#22404#22254
25K → 30K29490+204#22254#22050
30K → 20M63168-105#22050#22155
20M → 21M49177-128#22155#22283
21M → 35K2481-57#22283#22340
35K → 23M50136-86#22340#22426
23M → 24M28146-118#22426#22544
24M → 40K11144-133#22544#22677
40K → 25.2M1248-36#22677#22713
25.2M → Finish2585-60#22713#22773
TOTALS15871709-122
📊

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