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BOSTON MARATHON 2025

Kawai Marin

Bib: 27619•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
31:34
Rank: #25974
Start → 5K
10:10/mi
31:34 split
10K· 6.21 mi
1:06:53
Rank: #26965 (-991)
5K → 10K
11:22/mi
35:19 split
15K· 9.32 mi
1:48:37
Rank: #27772 (-807)
10K → 15K
13:26/mi
41:44 split
20K· 12.43 mi
2:32:52
Rank: #28009 (-237)
15K → 20K
14:15/mi
44:15 split
Half· 13.11 mi
2:43:03
Rank: #28061 (-52)
20K → Half
14:56/mi
10:11 split
25K· 15.53 mi
3:20:04
Rank: #28157 (-96)
Half → 25K
15:16/mi
37:01 split
30K· 18.64 mi
4:09:39
Rank: #28244 (-87)
25K → 30K
15:58/mi
49:35 split
20M
4:32:05
Rank: #28269 (-25)
30K → 20M
16:30/mi
22:26 split
21M
4:48:47
Rank: #28273 (-4)
20M → 21M
16:42/mi
16:42 split
35K· 21.75 mi
5:00:05
Rank: #28272 (+1)
21M → 35K
15:06/mi
11:18 split
23M
5:18:16
Rank: #28265 (+7)
35K → 23M
14:31/mi
18:11 split
24M
5:33:01
Rank: #28276 (-11)
23M → 24M
14:45/mi
14:45 split
40K· 24.85 mi
5:46:06
Rank: #28282 (-6)
24M → 40K
15:18/mi
13:05 split
25.2M
5:51:24
Rank: #28279 (+3)
40K → 25.2M
15:22/mi
5:18 split
Finish· 26.22 mi
6:05:19
Rank: #28280 (-1)
25.2M → Finish
13:39/mi
13:55 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:43:03
Pace12:26 /mi
2nd Half
Distance13.11 mi
Time3:22:16
Pace15:26 /mi
📊Positive Split: 24.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:0731:3410:1031:34
10:10
-
10K
6.21 mi12:22:261:06:5310:4635:19
11:22
+1:12
15K
9.32 mi13:04:101:48:3711:3941:44
13:26
+2:04
20K
12.43 mi13:48:252:32:5212:1844:15
14:15
+0:49
Half
13.11 mi13:58:362:43:0312:2610:11
14:56
+0:41
25K
15.53 mi14:35:373:20:0412:5337:01
15:16
+0:20
30K
18.64 mi15:25:124:09:3913:2449:35
15:58
+0:42
20M
20.00 mi15:47:384:32:0513:3622:26
16:30
+0:32
21M
21.00 mi16:04:204:48:4713:4516:42
16:42
+0:12
35K
21.75 mi16:15:385:00:0513:4811:18
15:06
-1:36
23M
23.00 mi16:33:495:18:1613:5018:11
14:31
-0:35
24M
24.00 mi16:48:345:33:0113:5314:45
14:45
+0:14
40K
24.85 mi17:01:395:46:0613:5513:05
15:18
+0:33
25.2M
25.20 mi17:06:575:51:2413:575:18
15:22
+0:04
Finish
26.22 mi17:20:526:05:1913:5713:55
13:39
-1:43

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

10:10 /mi

Average Pace

13:57 /mi

Slowest Pace

16:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:02:32

34% of race

Time at Steady Pace

2:34:04

42% of race

Time at Slower Pace

1:28:43

24% of race

Average Pace: 13:56 /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 mi11:47:0731:3410:1031:34
10:10
#25974
10K
6.21 mi12:22:261:06:5310:4635:19
11:22
#26965
15K
9.32 mi13:04:101:48:3711:3941:44
13:26
#27772
20K
12.43 mi13:48:252:32:5212:1844:15
14:15
#28009
Half
13.11 mi13:58:362:43:0312:2610:11
14:56
#28061
25K
15.53 mi14:35:373:20:0412:5337:01
15:16
#28157
30K
18.64 mi15:25:124:09:3913:2449:35
15:58
#28244
20M
20.00 mi15:47:384:32:0513:3622:26
16:30
#28269
21M
21.00 mi16:04:204:48:4713:4516:42
16:42
#28273
35K
21.75 mi16:15:385:00:0513:4811:18
15:06
#28272
23M
23.00 mi16:33:495:18:1613:5018:11
14:31
#28265
24M
24.00 mi16:48:345:33:0113:5314:45
14:45
#28276
40K
24.85 mi17:01:395:46:0613:5513:05
15:18
#28282
25.2M
25.20 mi17:06:575:51:2413:575:18
15:22
#28279
Finish
26.22 mi17:20:526:05:1913:5713:55
13:39
#28280
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi25974151671516728288(Top 100%)16053(Top 100%)16053(Top 285%)
10K6.21 mi3.10 mi26965-99115574-40715574-40727466(Top 97%)15752(Top 98%)15752(Top 279%)
15K9.32 mi3.11 mi27772-80715877-30315877-30328288(Top 100%)16053(Top 100%)16053(Top 285%)
20K12.43 mi3.11 mi28009-23715957-8015957-8028295(Top 100%)16048(Top 100%)16048(Top 284%)
Half13.11 mi0.68 mi28061-5215977-2015977-2028343(Top 100%)16070(Top 100%)16070(Top 285%)
25K15.53 mi2.42 mi28157-9616004-2716004-2728283(Top 100%)16039(Top 100%)16039(Top 284%)
30K18.64 mi3.11 mi28244-8716032-2816032-2828260(Top 99%)16019(Top 99%)16019(Top 284%)
20M20.00 mi1.36 mi28269-2516039-716039-728255(Top 99%)16014(Top 99%)16014(Top 284%)
21M21.00 mi1.00 mi28273-4160391603928081(Top 99%)15913(Top 99%)15913(Top 282%)
35K21.75 mi0.75 mi28272+1160391603928092(Top 99%)15907(Top 99%)15907(Top 282%)
23M23.00 mi1.25 mi28265+716029+1016029+1027663(Top 97%)15658(Top 97%)15658(Top 278%)
24M24.00 mi1.00 mi28276-1116033-416033-427982(Top 99%)15821(Top 98%)15821(Top 280%)
40K24.85 mi0.85 mi28282-616037-416037-427897(Top 98%)15773(Top 98%)15773(Top 280%)
25.2M25.20 mi0.35 mi28279+316035+216035+227378(Top 96%)15474(Top 96%)15474(Top 274%)
Finish26.22 mi1.02 mi28280-116037-216037-227923(Top 98%)15798(Top 98%)15798(Top 280%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 100%
×21stories
+97ft-345ft

Overall

28288

Males

16053

M18-39

16053

5K→10K

3.1 - 6.2 mi

Top 97%
×5stories
+79ft-138ft

Overall

27466

Males

15752

M18-39

15752

10K→15K

6.2 - 9.3 mi

Top 100%
×3stories
+67ft-78ft

Overall

28288

Males

16053

M18-39

16053

15K→20K

9.3 - 12.4 mi

Top 100%
×5stories
+106ft-86ft

Overall

28295

Males

16048

M18-39

16048

20K→Half

12.4 - 13.1 mi

Top 100%
×2stories
+19ft-37ft

Overall

28343

Males

16070

M18-39

16070

Half→25K

13.1 - 15.5 mi

Top 100%
×4stories
+66ft-88ft

Overall

28283

Males

16039

M18-39

16039

25K→30K

15.5 - 18.6 mi

Top 99%
×9stories
+181ft-148ft

Overall

28260

Males

16019

M18-39

16019

30K→20M

18.6 - 20.0 mi

Top 99%
×5stories
+64ft-50ft

Overall

28255

Males

16014

M18-39

16014

20M→21M

20.0 - 21.0 mi

Top 99%
×8stories
+106ft-24ft

Overall

28081

Males

15913

M18-39

15913

21M→35K

21.0 - 21.8 mi

Top 99%
×7stories
+17ft-86ft

Overall

28092

Males

15907

M18-39

15907

35K→23M

21.8 - 23.0 mi

Top 97%
×5stories
+23ft-63ft

Overall

27663

Males

15658

M18-39

15658

23M→24M

23.0 - 24.0 mi

Top 99%
×6stories
+12ft-82ft

Overall

27982

Males

15821

M18-39

15821

24M→40K

24.0 - 24.9 mi

Top 98%
×1story
+6ft-20ft

Overall

27897

Males

15773

M18-39

15773

40K→25.2M

24.9 - 25.2 mi

Top 96%
×1story
+13ft-16ft

Overall

27378

Males

15474

M18-39

15474

25.2M→Finish

25.2 - 26.2 mi

Top 98%
×2stories
+22ft-21ft

Overall

27923

Males

15798

M18-39

15798

Passing Analysis

Category:
Athletes Passed
80
Passed By
2386
Net Change
-2306
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25974
5K → 10K111002-991#25974#26965
10K → 15K6813-807#26965#27772
15K → 20K3240-237#27772#28009
20K → Half355-52#28009#28061
Half → 25K8104-96#28061#28157
25K → 30K996-87#28157#28244
30K → 20M227-25#28244#28269
20M → 21M37-4#28269#28273
21M → 35K54+1#28273#28272
35K → 23M147+7#28272#28265
23M → 24M213-11#28265#28276
24M → 40K39-6#28276#28282
40K → 25.2M41+3#28282#28279
25.2M → Finish78-1#28279#28280
TOTALS802386-2306
📊

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