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BOSTON MARATHON 2026

Yoshimasa Shimazu

Bib: 30312β€’M

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M60-64)
#0 / 1514
Race Day Weather
51Β°/41Β°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
31:55
3.11 mi
Rank: #26672
Start β†’ 5K
31:55 | 10:17/mi
10K
1:04:37
6.21 mi
Rank: #26830 (-158)
5K β†’ 10K
32:42 | 10:32/mi
15K
1:38:01
9.32 mi
Rank: #26920 (-90)
10K β†’ 15K
33:24 | 10:46/mi
20K
2:12:42
12.43 mi
Rank: #27015 (-95)
15K β†’ 20K
34:41 | 11:10/mi
HALF
2:20:14
13.11 mi
Rank: #27044 (-29)
20K β†’ HALF
7:32 | 11:04/mi
25K
2:48:16
15.53 mi
Rank: #27060 (-16)
HALF β†’ 25K
28:02 | 11:34/mi
30K
3:27:54
18.64 mi
Rank: #27210 (-150)
25K β†’ 30K
39:38 | 12:46/mi
20M
3:45:44
20.00 mi
Rank: #27248 (-38)
30K β†’ 20M
17:50 | 13:08/mi
21M
3:59:46
21.00 mi
Rank: #27289 (-41)
20M β†’ 21M
14:02 | 14:02/mi
35K
4:09:21
21.75 mi
Rank: #27315 (-26)
21M β†’ 35K
9:35 | 12:49/mi
23M
4:26:05
23.00 mi
Rank: #27367 (-52)
35K β†’ 23M
16:44 | 13:23/mi
24M
4:39:29
24.00 mi
Rank: #27412 (-45)
23M β†’ 24M
13:24 | 13:24/mi
40K
4:51:21
24.85 mi
Rank: #27440 (-28)
24M β†’ 40K
11:52 | 13:53/mi
25.2M
4:56:41
25.20 mi
Rank: #27458 (-18)
40K β†’ 25.2M
5:20 | 15:28/mi
FINISH
5:10:09
26.22 mi
Rank: #27528 (-70)
25.2M β†’ FINISH
13:28 | 13:13/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:20:14
Pace10:42 /mi
2nd Half
Distance13.11 mi
Time2:49:55
Pace12:58 /mi
πŸ“ŠPositive Split: 21.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi12:00:4131:5510:1731:55
10:17
-
10K
6.21 mi12:33:231:04:3710:2432:42
10:32
+0:15
15K
9.32 mi13:06:471:38:0110:3133:24
10:46
+0:14
20K
12.43 mi13:41:282:12:4210:4134:41
11:10
+0:24
HALF
13.11 mi13:49:002:20:1410:427:32
11:04
-0:06
25K
15.53 mi14:17:022:48:1610:5028:02
11:34
+0:30
30K
18.64 mi14:56:403:27:5411:1039:38
12:46
+1:12
20M
20.00 mi15:14:303:45:4411:1817:50
13:08
+0:22
21M
21.00 mi15:28:323:59:4611:2614:02
14:02
+0:54
35K
21.75 mi15:38:074:09:2111:289:35
12:49
-1:13
23M
23.00 mi15:54:514:26:0511:3516:44
13:23
+0:34
24M
24.00 mi16:08:154:39:2911:3913:24
13:24
+0:01
40K
24.85 mi16:20:074:51:2111:4411:52
13:53
+0:29
25.2M
25.20 mi16:25:274:56:4111:475:20
15:28
+1:35
FINISH
26.22 mi16:38:555:10:0911:5113:28
13:13
-2:15

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

πŸ“ˆPace 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

10:17 /mi

Average Pace

11:50 /mi

Slowest Pace

15:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

πŸ“ŠSegments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:48:16

54% of race

Time at Steady Pace

1:50:39

36% of race

Time at Slower Pace

31:14

10% of race

Average Pace: 11:50 /mi

Loading chart...
Faster pace (< avg)
Steady pace (β‰ˆ 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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi12:00:4131:5510:1731:55
10:17
#26672
10K
6.21 mi12:33:231:04:3710:2432:42
10:32
#26830
15K
9.32 mi13:06:471:38:0110:3133:24
10:46
#26920
20K
12.43 mi13:41:282:12:4210:4134:41
11:10
#27015
HALF
13.11 mi13:49:002:20:1410:427:32
11:04
#27044
25K
15.53 mi14:17:022:48:1610:5028:02
11:34
#27060
30K
18.64 mi14:56:403:27:5411:1039:38
12:46
#27210
20M
20.00 mi15:14:303:45:4411:1817:50
13:08
#27248
21M
21.00 mi15:28:323:59:4611:2614:02
14:02
#27289
35K
21.75 mi15:38:074:09:2111:289:35
12:49
#27315
23M
23.00 mi15:54:514:26:0511:3516:44
13:23
#27367
24M
24.00 mi16:08:154:39:2911:3913:24
13:24
#27412
40K
24.85 mi16:20:074:51:2111:4411:52
13:53
#27440
25.2M
25.20 mi16:25:274:56:4111:475:20
15:28
#27458
FINISH
26.22 mi16:38:555:10:0911:5113:28
13:13
#27528
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi26672154931549327091(Top 93%)15638(Top 96%)15638(Top 1033%)
10K6.21 mi3.10 mi26830-15815537-4415537-4426955(Top 93%)15588(Top 95%)15588(Top 1030%)
15K9.32 mi3.11 mi26920-9015582-4515582-4527091(Top 93%)15638(Top 96%)15638(Top 1033%)
20K12.43 mi3.11 mi27015-9515618-3615618-3627172(Top 94%)15667(Top 96%)15667(Top 1035%)
HALF13.11 mi0.68 mi27044-2915622-415622-427434(Top 95%)15717(Top 96%)15717(Top 1038%)
25K15.53 mi2.42 mi27060-1615614+815614+827084(Top 93%)15567(Top 95%)15567(Top 1028%)
30K18.64 mi3.11 mi27210-15015657-4315657-4327510(Top 95%)15675(Top 96%)15675(Top 1035%)
20M20.00 mi1.36 mi27248-3815665-815665-827521(Top 95%)15650(Top 96%)15650(Top 1034%)
21M21.00 mi1.00 mi27289-41156651566527349(Top 94%)15526(Top 95%)15526(Top 1025%)
35K21.75 mi0.75 mi27315-2615669-415669-427545(Top 95%)15611(Top 96%)15611(Top 1031%)
23M23.00 mi1.25 mi27367-5215683-1415683-1427679(Top 95%)15674(Top 96%)15674(Top 1035%)
24M24.00 mi1.00 mi27412-4515696-1315696-1327954(Top 96%)15765(Top 96%)15765(Top 1041%)
40K24.85 mi0.85 mi27440-2815699-315699-327813(Top 96%)15698(Top 96%)15698(Top 1037%)
25.2M25.20 mi0.35 mi27458-1815706-715706-728176(Top 97%)15851(Top 97%)15851(Top 1047%)
FINISH26.22 mi1.02 mi27528-7015727-2115727-2128340(Top 98%)15961(Top 98%)15961(Top 1054%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 93%
Γ—21
+97ft-345ft

Overall

27091

Males

15638

M60-64

15638

5K→10K

3.1 - 6.2 mi

Top 93%
Γ—5
+79ft-138ft

Overall

26955

Males

15588

M60-64

15588

10K→15K

6.2 - 9.3 mi

Top 93%
Γ—3
+67ft-78ft

Overall

27091

Males

15638

M60-64

15638

15K→20K

9.3 - 12.4 mi

Top 94%
Γ—5
+106ft-86ft

Overall

27172

Males

15667

M60-64

15667

20K→HALF

12.4 - 13.1 mi

Top 95%
Γ—2
+19ft-37ft

Overall

27434

Males

15717

M60-64

15717

HALF→25K

13.1 - 15.5 mi

Top 93%
Γ—4
+66ft-88ft

Overall

27084

Males

15567

M60-64

15567

25K→30K

15.5 - 18.6 mi

Top 95%
Γ—9
+181ft-148ft

Overall

27510

Males

15675

M60-64

15675

30K→20M

18.6 - 20.0 mi

Top 95%
Γ—5
+64ft-50ft

Overall

27521

Males

15650

M60-64

15650

20M→21M

20.0 - 21.0 mi

Top 94%
Γ—8
+106ft-24ft

Overall

27349

Males

15526

M60-64

15526

21M→35K

21.0 - 21.8 mi

Top 95%
Γ—7
+17ft-86ft

Overall

27545

Males

15611

M60-64

15611

35K→23M

21.8 - 23.0 mi

Top 95%
Γ—5
+23ft-63ft

Overall

27679

Males

15674

M60-64

15674

23M→24M

23.0 - 24.0 mi

Top 96%
Γ—6
+12ft-82ft

Overall

27954

Males

15765

M60-64

15765

24M→40K

24.0 - 24.9 mi

Top 96%
Γ—1
+6ft-20ft

Overall

27813

Males

15698

M60-64

15698

40K→25.2M

24.9 - 25.2 mi

Top 97%
Γ—1
+13ft-16ft

Overall

28176

Males

15851

M60-64

15851

25.2M→FINISH

25.2 - 26.2 mi

Top 98%
Γ—2
+22ft-21ft

Overall

28340

Males

15961

M60-64

15961

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
548
Passed By
1404
Net Change
-856
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#26672
5K β†’ 10K124282-158#26672#26830
10K β†’ 15K91181-90#26830#26920
15K β†’ 20K75170-95#26920#27015
20K β†’ HALF1443-29#27015#27044
HALF β†’ 25K7187-16#27044#27060
25K β†’ 30K46196-150#27060#27210
30K β†’ 20M2765-38#27210#27248
20M β†’ 21M2566-41#27248#27289
21M β†’ 35K1339-26#27289#27315
35K β†’ 23M1567-52#27315#27367
23M β†’ 24M1863-45#27367#27412
24M β†’ 40K1947-28#27412#27440
40K β†’ 25.2M422-18#27440#27458
25.2M β†’ FINISH676-70#27458#27528
TOTALS5481404-856
πŸ“Š

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

πŸ“ˆPosition Graph

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🎨Heatmap Timeline

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πŸ”„Passing Circle

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🌊Position Flow

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πŸƒRace Lanes

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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing