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BOSTON MARATHON 2025

Kei Ito

Bib: 5852•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 18%
Gender (Male)
#0 / 16105
Top 28%
Masters (Masters Men)
#0 / 10463
Top 14%
Division (M50-54)
#0 / 1996
Top 8%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:13
Rank: #3891
Start → 5K
20:13 | 6:30/mi
10K· 6.21 mi
40:26
Rank: #3828 (+63)
5K → 10K
20:13 | 6:30/mi
15K· 9.32 mi
1:01:04
Rank: #4042 (-214)
10K → 15K
20:38 | 6:38/mi
20K· 12.43 mi
1:22:18
Rank: #4350 (-308)
15K → 20K
21:14 | 6:50/mi
Half· 13.11 mi
1:26:53
Rank: #4387 (-37)
20K → Half
4:35 | 6:43/mi
25K· 15.53 mi
1:43:42
Rank: #4584 (-197)
Half → 25K
16:49 | 6:56/mi
30K· 18.64 mi
2:06:22
Rank: #4987 (-403)
25K → 30K
22:40 | 7:18/mi
20M
2:16:23
Rank: #5096 (-109)
30K → 20M
10:01 | 7:22/mi
21M
2:24:13
Rank: #5173 (-77)
20M → 21M
7:50 | 7:50/mi
35K· 21.75 mi
2:29:25
Rank: #5157 (+16)
21M → 35K
5:12 | 6:57/mi
23M
2:38:20
Rank: #5072 (+85)
35K → 23M
8:55 | 7:07/mi
24M
2:45:17
Rank: #5033 (+39)
23M → 24M
6:57 | 6:57/mi
40K· 24.85 mi
2:51:24
Rank: #4993 (+40)
24M → 40K
6:07 | 7:09/mi
25.2M
2:54:11
Rank: #4999 (-6)
40K → 25.2M
2:47 | 8:04/mi
Finish· 26.22 mi
3:01:24
Rank: #4994 (+5)
25.2M → Finish
7:13 | 7:05/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:53
Pace6:38 /mi
2nd Half
Distance13.11 mi
Time1:34:31
Pace7:13 /mi
📊Positive Split: 8.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:1620:136:3020:13
6:30
-
10K
6.21 mi10:46:2940:266:3020:13
6:30
0:00
15K
9.32 mi11:07:071:01:046:3320:38
6:38
+0:08
20K
12.43 mi11:28:211:22:186:3721:14
6:50
+0:12
Half
13.11 mi11:32:561:26:536:384:35
6:43
-0:07
25K
15.53 mi11:49:451:43:426:4116:49
6:56
+0:13
30K
18.64 mi12:12:252:06:226:4722:40
7:18
+0:22
20M
20.00 mi12:22:262:16:236:4910:01
7:22
+0:04
21M
21.00 mi12:30:162:24:136:527:50
7:50
+0:28
35K
21.75 mi12:35:282:29:256:525:12
6:57
-0:53
23M
23.00 mi12:44:232:38:206:538:55
7:07
+0:10
24M
24.00 mi12:51:202:45:176:536:57
6:57
-0:10
40K
24.85 mi12:57:272:51:246:546:07
7:09
+0:12
25.2M
25.20 mi13:00:142:54:116:552:47
8:04
+0:55
Finish
26.22 mi13:07:273:01:246:557:13
7:05
-0:59

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

6:30 /mi

Average Pace

6:55 /mi

Slowest Pace

8:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:05:39

36% of race

Time at Steady Pace

1:12:27

40% of race

Time at Slower Pace

43:18

24% of race

Average Pace: 6:55 /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 mi10:26:1620:136:3020:13
6:30
#3891
10K
6.21 mi10:46:2940:266:3020:13
6:30
#3828
15K
9.32 mi11:07:071:01:046:3320:38
6:38
#4042
20K
12.43 mi11:28:211:22:186:3721:14
6:50
#4350
Half
13.11 mi11:32:561:26:536:384:35
6:43
#4387
25K
15.53 mi11:49:451:43:426:4116:49
6:56
#4584
30K
18.64 mi12:12:252:06:226:4722:40
7:18
#4987
20M
20.00 mi12:22:262:16:236:4910:01
7:22
#5096
21M
21.00 mi12:30:162:24:136:527:50
7:50
#5173
35K
21.75 mi12:35:282:29:256:525:12
6:57
#5157
23M
23.00 mi12:44:232:38:206:538:55
7:07
#5072
24M
24.00 mi12:51:202:45:176:536:57
6:57
#5033
40K
24.85 mi12:57:272:51:246:546:07
7:09
#4993
25.2M
25.20 mi13:00:142:54:116:552:47
8:04
#4999
Finish
26.22 mi13:07:273:01:246:557:13
7:05
#4994
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi3891368336834581(Top 16%)4288(Top 27%)4288(Top 215%)
10K6.21 mi3.10 mi3828+633620+633620+633777(Top 13%)3562(Top 22%)3562(Top 178%)
15K9.32 mi3.11 mi4042-2143811-1913811-1914581(Top 16%)4288(Top 27%)4288(Top 215%)
20K12.43 mi3.11 mi4350-3084087-2764087-2765629(Top 20%)5132(Top 32%)5132(Top 257%)
Half13.11 mi0.68 mi4387-374117-304117-305387(Top 19%)4942(Top 31%)4942(Top 248%)
25K15.53 mi2.42 mi4584-1974282-1654282-1655876(Top 21%)5295(Top 33%)5295(Top 265%)
30K18.64 mi3.11 mi4987-4034602-3204602-3206410(Top 23%)5589(Top 35%)5589(Top 280%)
20M20.00 mi1.36 mi5096-1094689-874689-876174(Top 22%)5305(Top 33%)5305(Top 266%)
21M21.00 mi1.00 mi5173-774746-574746-576341(Top 22%)5277(Top 33%)5277(Top 264%)
35K21.75 mi0.75 mi5157+164726+204726+205018(Top 18%)4385(Top 27%)4385(Top 220%)
23M23.00 mi1.25 mi5072+854642+844642+844441(Top 16%)3908(Top 24%)3908(Top 196%)
24M24.00 mi1.00 mi5033+394600+424600+424337(Top 15%)3789(Top 24%)3789(Top 190%)
40K24.85 mi0.85 mi4993+404558+424558+424759(Top 17%)4037(Top 25%)4037(Top 202%)
25.2M25.20 mi0.35 mi4999-64560-24560-26219(Top 22%)4852(Top 30%)4852(Top 243%)
Finish26.22 mi1.02 mi4994+54541+194541+196224(Top 22%)4867(Top 30%)4867(Top 244%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4581

Males

4288

M50-54

4288

5K→10K

3.1 - 6.2 mi

Top 13%
×5stories
+79ft-138ft

Overall

3777

Males

3562

M50-54

3562

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4581

Males

4288

M50-54

4288

15K→20K

9.3 - 12.4 mi

Top 20%
×5stories
+106ft-86ft

Overall

5629

Males

5132

M50-54

5132

20K→Half

12.4 - 13.1 mi

Top 19%
×2stories
+19ft-37ft

Overall

5387

Males

4942

M50-54

4942

Half→25K

13.1 - 15.5 mi

Top 21%
×4stories
+66ft-88ft

Overall

5876

Males

5295

M50-54

5295

25K→30K

15.5 - 18.6 mi

Top 23%
×9stories
+181ft-148ft

Overall

6410

Males

5589

M50-54

5589

30K→20M

18.6 - 20.0 mi

Top 22%
×5stories
+64ft-50ft

Overall

6174

Males

5305

M50-54

5305

20M→21M

20.0 - 21.0 mi

Top 22%
×8stories
+106ft-24ft

Overall

6341

Males

5277

M50-54

5277

21M→35K

21.0 - 21.8 mi

Top 18%
×7stories
+17ft-86ft

Overall

5018

Males

4385

M50-54

4385

35K→23M

21.8 - 23.0 mi

Top 16%
×5stories
+23ft-63ft

Overall

4441

Males

3908

M50-54

3908

23M→24M

23.0 - 24.0 mi

Top 15%
×6stories
+12ft-82ft

Overall

4337

Males

3789

M50-54

3789

24M→40K

24.0 - 24.9 mi

Top 17%
×1story
+6ft-20ft

Overall

4759

Males

4037

M50-54

4037

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

6219

Males

4852

M50-54

4852

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2stories
+22ft-21ft

Overall

6224

Males

4867

M50-54

4867

Passing Analysis

Category:
Athletes Passed
858
Passed By
1961
Net Change
-1103
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3891
5K → 10K170107+63#3891#3828
10K → 15K37251-214#3828#4042
15K → 20K33341-308#4042#4350
20K → Half845-37#4350#4387
Half → 25K62259-197#4387#4584
25K → 30K63466-403#4584#4987
30K → 20M44153-109#4987#5096
20M → 21M60137-77#5096#5173
21M → 35K5034+16#5173#5157
35K → 23M12439+85#5157#5072
23M → 24M7637+39#5072#5033
24M → 40K6424+40#5033#4993
40K → 25.2M2531-6#4993#4999
25.2M → Finish4237+5#4999#4994
TOTALS8581961-1103
📊

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