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BOSTON MARATHON 2025

Yuichiro Kato

Bib: 17719•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M55-59)
#0 / 1648
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:41/mi
23:51
↑ 97↓ 3451.5%
10K· 6.21 mi
7:51/mi
48:15
↑ 79↓ 1380.4%
15K· 9.32 mi
8:05/mi
1:13:23
↑ 67↓ 78
20K· 12.43 mi
8:38/mi
1:40:13
↑ 106↓ 860.1%
Half· 13.11 mi
8:37/mi
1:46:06
↑ 19↓ 370.5%
25K· 15.53 mi
9:09/mi
2:08:17
↑ 66↓ 880.2%
30K· 18.64 mi
9:50/mi
2:38:49
↑ 181↓ 1480.2%
20M
9:54/mi
2:52:16
↑ 64↓ 500.2%
21M
10:38/mi
3:02:54
↑ 106↓ 241.6%
35K· 21.75 mi
9:33/mi
3:10:03
↑ 17↓ 861.7%
23M
10:08/mi
3:22:44
↑ 23↓ 630.6%
24M
9:58/mi
3:32:42
↓ 821.3%
40K· 24.85 mi
10:02/mi
3:41:17
↓ 200.3%
25.2M
11:24/mi
3:45:13
↑ 13↓ 160.2%
Finish· 26.22 mi
9:59/mi
3:55:23
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:06
Pace8:06 /mi
2nd Half
Distance13.11 mi
Time2:09:17
Pace9:52 /mi
📊Positive Split: 21.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:0723:517:4123:51
7:41
-
10K
6.21 mi11:38:3148:157:4624:24
7:51
+0:10
15K
9.32 mi12:03:391:13:237:5225:08
8:05
+0:14
20K
12.43 mi12:30:291:40:138:0426:50
8:38
+0:33
Half
13.11 mi12:36:221:46:068:065:53
8:37
-0:01
25K
15.53 mi12:58:332:08:178:1522:11
9:09
+0:32
30K
18.64 mi13:29:052:38:498:3130:32
9:50
+0:41
20M
20.00 mi13:42:322:52:168:3713:27
9:54
+0:04
21M
21.00 mi13:53:103:02:548:4310:38
10:38
+0:44
35K
21.75 mi14:00:193:10:038:447:09
9:33
-1:05
23M
23.00 mi14:13:003:22:448:4912:41
10:08
+0:35
24M
24.00 mi14:22:583:32:428:529:58
9:58
-0:10
40K
24.85 mi14:31:333:41:178:548:35
10:02
+0:04
25.2M
25.20 mi14:35:293:45:138:563:56
11:24
+1:22
Finish
26.22 mi14:45:393:55:238:5910:10
9:59
-1:25

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

7:41 /mi

Average Pace

8:59 /mi

Slowest Pace

11:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:08:17

54% of race

Time at Steady Pace

1:32:32

39% of race

Time at Slower Pace

14:34

6% of race

Average Pace: 8:59 /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 mi11:14:0723:517:4123:51
7:41
#13752
10K
6.21 mi11:38:3148:157:4624:24
7:51
#14464
15K
9.32 mi12:03:391:13:237:5225:08
8:05
#15273
20K
12.43 mi12:30:291:40:138:0426:50
8:38
#16415
Half
13.11 mi12:36:221:46:068:065:53
8:37
#16617
25K
15.53 mi12:58:332:08:178:1522:11
9:09
#17332
30K
18.64 mi13:29:052:38:498:3130:32
9:50
#18261
20M
20.00 mi13:42:322:52:168:3713:27
9:54
#18510
21M
21.00 mi13:53:103:02:548:4310:38
10:38
#18669
35K
21.75 mi14:00:193:10:038:447:09
9:33
#18759
23M
23.00 mi14:13:003:22:448:4912:41
10:08
#18956
24M
24.00 mi14:22:583:32:428:529:58
9:58
#19101
40K
24.85 mi14:31:333:41:178:548:35
10:02
#19182
25.2M
25.20 mi14:35:293:45:138:563:56
11:24
#19223
Finish
26.22 mi14:45:393:55:238:5910:10
9:59
#19422
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi137529974997416664(Top 59%)11078(Top 69%)11078(Top 672%)
10K6.21 mi3.10 mi14464-71210211-23710211-23715283(Top 54%)10535(Top 65%)10535(Top 639%)
15K9.32 mi3.11 mi15273-80910511-30010511-30016664(Top 59%)11078(Top 69%)11078(Top 672%)
20K12.43 mi3.11 mi16415-114210983-47210983-47219050(Top 67%)12051(Top 75%)12051(Top 731%)
Half13.11 mi0.68 mi16617-20211055-7211055-7219895(Top 70%)12422(Top 77%)12422(Top 754%)
25K15.53 mi2.42 mi17332-71511323-26811323-26820554(Top 72%)12654(Top 79%)12654(Top 768%)
30K18.64 mi3.11 mi18261-92911673-35011673-35021073(Top 74%)12746(Top 79%)12746(Top 773%)
20M20.00 mi1.36 mi18510-24911761-8811761-8820602(Top 73%)12406(Top 77%)12406(Top 753%)
21M21.00 mi1.00 mi18669-15911802-4111802-4120392(Top 72%)12210(Top 76%)12210(Top 741%)
35K21.75 mi0.75 mi18759-9011821-1911821-1920500(Top 72%)12204(Top 76%)12204(Top 741%)
23M23.00 mi1.25 mi18956-19711877-5611877-5620896(Top 74%)12340(Top 77%)12340(Top 749%)
24M24.00 mi1.00 mi19101-14511924-4711924-4721249(Top 75%)12465(Top 77%)12465(Top 756%)
40K24.85 mi0.85 mi19182-8111931-711931-720557(Top 72%)12068(Top 75%)12068(Top 732%)
25.2M25.20 mi0.35 mi19223-4111932-111932-121770(Top 77%)12667(Top 79%)12667(Top 769%)
Finish26.22 mi1.02 mi19422-19912005-7312005-7322845(Top 80%)13193(Top 82%)13193(Top 801%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21story building
+97ft-345ft

Overall

16664

Males

11078

M55-59

11078

5K→10K

3.1 - 6.2 mi

Top 54%
×5story building
+79ft-138ft

Overall

15283

Males

10535

M55-59

10535

10K→15K

6.2 - 9.3 mi

Top 59%
×3story building
+67ft-78ft

Overall

16664

Males

11078

M55-59

11078

15K→20K

9.3 - 12.4 mi

Top 67%
×5story building
+106ft-86ft

Overall

19050

Males

12051

M55-59

12051

20K→Half

12.4 - 13.1 mi

Top 70%
×2story building
+19ft-37ft

Overall

19895

Males

12422

M55-59

12422

Half→25K

13.1 - 15.5 mi

Top 72%
×4story building
+66ft-88ft

Overall

20554

Males

12654

M55-59

12654

25K→30K

15.5 - 18.6 mi

Top 74%
×9story building
+181ft-148ft

Overall

21073

Males

12746

M55-59

12746

30K→20M

18.6 - 20.0 mi

Top 73%
×5story building
+64ft-50ft

Overall

20602

Males

12406

M55-59

12406

20M→21M

20.0 - 21.0 mi

Top 72%
×8story building
+106ft-24ft

Overall

20392

Males

12210

M55-59

12210

21M→35K

21.0 - 21.8 mi

Top 72%
×7story building
+17ft-86ft

Overall

20500

Males

12204

M55-59

12204

35K→23M

21.8 - 23.0 mi

Top 74%
×5story building
+23ft-63ft

Overall

20896

Males

12340

M55-59

12340

23M→24M

23.0 - 24.0 mi

Top 75%
×6story building
+12ft-82ft

Overall

21249

Males

12465

M55-59

12465

24M→40K

24.0 - 24.9 mi

Top 72%
×1story
+6ft-20ft

Overall

20557

Males

12068

M55-59

12068

40K→25.2M

24.9 - 25.2 mi

Top 77%
×1story
+13ft-16ft

Overall

21770

Males

12667

M55-59

12667

25.2M→Finish

25.2 - 26.2 mi

Top 80%
×2story building
+22ft-21ft

Overall

22845

Males

13193

M55-59

13193

Passing Analysis

Category:
Athletes Passed
604
Passed By
6274
Net Change
-5670
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13752
5K → 10K101813-712#13752#14464
10K → 15K46855-809#14464#15273
15K → 20K421184-1142#15273#16415
20K → Half5207-202#16415#16617
Half → 25K41756-715#16617#17332
25K → 30K55984-929#17332#18261
30K → 20M58307-249#18261#18510
20M → 21M55214-159#18510#18669
21M → 35K38128-90#18669#18759
35K → 23M51248-197#18759#18956
23M → 24M26171-145#18956#19101
24M → 40K50131-81#19101#19182
40K → 25.2M2061-41#19182#19223
25.2M → Finish16215-199#19223#19422
TOTALS6046274-5670
📊

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