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BOSTON MARATHON 2025

Eduardo Matsuo

MI

Bib: 21378 M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M70-74)
#0 / 228
Top 26%
Race Day Weather
50°/40°F
broken clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:06/mi
25:10
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:04/mi
50:15
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:05/mi
1:15:23
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:12/mi
1:40:53
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:07/mi
1:46:25
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:15/mi
2:06:24
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
9:39/mi
2:36:23
↑ 181↓ 1480.2%
138 ft elev
20M
10:51/mi
2:51:08
↑ 64↓ 500.2%
148 ft elev
21M
14:52/mi
3:06:00
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
10:50/mi
3:14:06
↑ 17↓ 861.7%
156 ft elev
23M
11:45/mi
3:28:49
↑ 23↓ 630.6%
116 ft elev
24M
11:27/mi
3:40:16
↓ 821.3%
34 ft elev
40K· 24.85 mi
12:13/mi
3:50:43
↓ 200.3%
20 ft elev
25.2M
12:19/mi
3:54:58
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
10:31/mi
4:05:41
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:46:258:07 /mi⚡ faster
2nd Half
2:19:1610:37 /mi+30.9%
Positive split — 30.9% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
25:108:063.11 mi25:10
8:06
-
10K
50:158:053.10 mi25:05
8:04
-0:02
15K
1:15:238:053.11 mi25:08
8:05
+0:01
20K
1:40:538:073.11 mi25:30
8:12
+0:07
Half(13.11 mi)
1:46:258:070.68 mi5:32
8:07
-0:05
25K
2:06:248:082.42 mi19:59
8:15
+0:08
30K
2:36:238:233.11 mi29:59
9:39
+1:24
20M
2:51:088:331.36 mi14:45
10:51
+1:12
21M
3:06:008:511.00 mi14:52
14:52
+4:01
35K
3:14:068:550.75 mi8:06
10:50
-4:02
23M
3:28:499:051.25 mi14:43
11:45
+0:55
24M
3:40:169:111.00 mi11:27
11:27
-0:18
40K
3:50:439:170.85 mi10:27
12:13
+0:46
25.2M
3:54:589:190.35 mi4:15
12:19
+0:06
Finish(26.22 mi)
4:05:419:231.02 mi10:43
10:31
-1:48
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

8:04 /mi

Average Pace

9:23 /mi

Slowest Pace

14:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:06:24

51% of race

Time at Steady Pace

1:15:00

31% of race

Time at Slower Pace

44:17

18% of race

Average Pace: 9:22 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallMalesM70-74Seg. OverallSeg. MalesSeg. M70-74
5K3.11 mi173431135511355166651107911079
10K3.10 mi17172+17111291+6411291+64170121125611256
15K3.11 mi16984+18811232+5911232+59166651107911079
20K3.11 mi16816+16811139+9311139+93163471089510895
Half(13.11 mi)0.68 mi16795+2111140-111140-1166771107211072
25K2.42 mi16556+23911012+12811012+128155741047310473
30K3.11 mi17404-84811295-28311295-283205461253412534
20M1.36 mi18135-73111591-29611591-296232771364913649
21M1.00 mi19473-133812148-55712148-557270431538615386
35K0.75 mi19752-27912249-10112249-101238571381813818
23M1.25 mi20285-53312452-20312452-203246781417614176
24M1.00 mi20627-34212596-14412596-144248091420114201
40K0.85 mi20936-30912718-12212718-122252711440114401
25.2M0.35 mi20990-5412732-1412732-14238341367913679
Finish(26.22 mi)1.02 mi21147-15712787-5512787-55243061392513925

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21story building
+97ft-345ft

Overall

16665

Males

11079

M70-74

11079

5K→10K

3.1 - 6.2 mi

Top 60%
×5story building
+79ft-138ft

Overall

17012

Males

11256

M70-74

11256

10K→15K

6.2 - 9.3 mi

Top 59%
×3story building
+67ft-78ft

Overall

16665

Males

11079

M70-74

11079

15K→20K

9.3 - 12.4 mi

Top 58%
×5story building
+106ft-86ft

Overall

16347

Males

10895

M70-74

10895

20K→Half

12.4 - 13.1 mi

Top 59%
×2story building
+19ft-37ft

Overall

16677

Males

11072

M70-74

11072

Half→25K

13.1 - 15.5 mi

Top 55%
×4story building
+66ft-88ft

Overall

15574

Males

10473

M70-74

10473

25K→30K

15.5 - 18.6 mi

Top 72%
×9story building
+181ft-148ft

Overall

20546

Males

12534

M70-74

12534

30K→20M

18.6 - 20.0 mi

Top 82%
×5story building
+64ft-50ft

Overall

23277

Males

13649

M70-74

13649

20M→21M

20.0 - 21.0 mi

Top 95%
×8story building
+106ft-24ft

Overall

27043

Males

15386

M70-74

15386

21M→35K

21.0 - 21.8 mi

Top 84%
×7story building
+17ft-86ft

Overall

23857

Males

13818

M70-74

13818

35K→23M

21.8 - 23.0 mi

Top 87%
×5story building
+23ft-63ft

Overall

24678

Males

14176

M70-74

14176

23M→24M

23.0 - 24.0 mi

Top 87%
×6story building
+12ft-82ft

Overall

24809

Males

14201

M70-74

14201

24M→40K

24.0 - 24.9 mi

Top 89%
×1story
+6ft-20ft

Overall

25271

Males

14401

M70-74

14401

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

23834

Males

13679

M70-74

13679

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2story building
+22ft-21ft

Overall

24306

Males

13925

M70-74

13925

Passing Analysis

Category:
Passed
1452
Passed By
5256
Net Change
-3804
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17343
5K → 10K389218+171#17343#17172
10K → 15K300112+188#17172#16984
15K → 20K274106+168#16984#16816
20K → Half5029+21#16816#16795
Half → 25K28041+239#16795#16556
25K → 30K57905-848#16556#17404
30K → 20M25756-731#17404#18135
20M → 21M71345-1338#18135#19473
21M → 35K11290-279#19473#19752
35K → 23M18551-533#19752#20285
23M → 24M11353-342#20285#20627
24M → 40K6315-309#20627#20936
40K → 25.2M1165-54#20936#20990
25.2M → Finish13170-157#20990#21147
TOTALS14525256-3804

Passing Charts

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