Yuichi Yamamoto

Bib: 7212M

Masters
Boston Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 25550
Top 19%
Gender (Male)
#0 / 14578
Top 29%
Masters (Masters Men)
#0 / 9729
Top 17%
Age Group (M40-44)
#0 / 2009
Top 41%
Race Day Weather
55°/45°F
scattered 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· 3.11 mi
20:15
Rank: #3436
Start5K
20:15 | 6:31/mi
10K· 6.21 mi
41:02
Rank: #3788 (-352)
5K10K
20:47 | 6:41/mi
15K· 9.32 mi
1:02:27
Rank: #4314 (-526)
10K15K
21:25 | 6:54/mi
20K· 12.43 mi
1:24:32
Rank: #4756 (-442)
15K20K
22:05 | 7:06/mi
Half· 13.11 mi
1:29:24
Rank: #4886 (-130)
20KHalf
4:52 | 7:08/mi
25K· 15.53 mi
1:47:11
Rank: #5101 (-215)
Half25K
17:47 | 7:20/mi
30K· 18.64 mi
2:11:05
Rank: #5194 (-93)
25K30K
23:54 | 7:42/mi
20M
2:21:50
Rank: #5204 (-10)
30K20M
10:45 | 7:55/mi
21M
2:30:19
Rank: #5169 (+35)
20M21M
8:29 | 8:29/mi
35K· 21.75 mi
2:35:49
Rank: #5076 (+93)
21M35K
5:30 | 7:21/mi
23M
2:45:42
Rank: #4983 (+93)
35K23M
9:53 | 7:54/mi
24M
2:53:21
Rank: #4891 (+92)
23M24M
7:39 | 7:39/mi
40K· 24.85 mi
3:00:10
Rank: #4830 (+61)
24M40K
6:49 | 7:58/mi
25.2M
3:03:16
Rank: #4842 (-12)
40K25.2M
3:06 | 8:59/mi
Finish· 26.22 mi
3:11:08
Rank: #4847 (-5)
25.2MFinish
7:52 | 7:43/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
Time1:29:24
Pace6:49 /mi
2nd Half
Distance13.11 mi
Time1:41:44
Pace7:46 /mi
📊Positive Split: 13.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:4820:156:3120:15
6:31
-
10K
6.21 mi10:47:3541:026:3620:47
6:41
+0:10
15K
9.32 mi11:09:001:02:276:4221:25
6:54
+0:13
20K
12.43 mi11:31:051:24:326:4822:05
7:06
+0:12
Half
13.11 mi11:35:571:29:246:494:52
7:08
+0:02
25K
15.53 mi11:53:441:47:116:5417:47
7:20
+0:12
30K
18.64 mi12:17:382:11:057:0223:54
7:42
+0:22
20M
20.00 mi12:28:232:21:507:0510:45
7:55
+0:13
21M
21.00 mi12:36:522:30:197:098:29
8:29
+0:34
35K
21.75 mi12:42:222:35:497:105:30
7:21
-1:08
23M
23.00 mi12:52:152:45:427:129:53
7:54
+0:33
24M
24.00 mi12:59:542:53:217:137:39
7:39
-0:15
40K
24.85 mi13:06:433:00:107:156:49
7:58
+0:19
25.2M
25.20 mi13:09:493:03:167:163:06
8:59
+1:01
Finish
26.22 mi13:17:413:11:087:187:52
7:43
-1:16

Checkpoint Splits Visualizations

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

📈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

6:31 /mi

Average Pace

7:18 /mi

Slowest Pace

8:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

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

1:29:24

47% of race

Time at Steady Pace

1:30:09

47% of race

Time at Slower Pace

11:35

6% of race

Average Pace: 7:17 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:26:4820:156:3120:15
6:31
#3436
10K
6.21 mi10:47:3541:026:3620:47
6:41
#3788
15K
9.32 mi11:09:001:02:276:4221:25
6:54
#4314
20K
12.43 mi11:31:051:24:326:4822:05
7:06
#4756
Half
13.11 mi11:35:571:29:246:494:52
7:08
#4886
25K
15.53 mi11:53:441:47:116:5417:47
7:20
#5101
30K
18.64 mi12:17:382:11:057:0223:54
7:42
#5194
20M
20.00 mi12:28:232:21:507:0510:45
7:55
#5204
21M
21.00 mi12:36:522:30:197:098:29
8:29
#5169
35K
21.75 mi12:42:222:35:497:105:30
7:21
#5076
23M
23.00 mi12:52:152:45:427:129:53
7:54
#4983
24M
24.00 mi12:59:542:53:217:137:39
7:39
#4891
40K
24.85 mi13:06:433:00:107:156:49
7:58
#4830
25.2M
25.20 mi13:09:493:03:167:163:06
8:59
#4842
Finish
26.22 mi13:17:413:11:087:187:52
7:43
#4847
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi3436327732775498(Top 22%)5004(Top 34%)5004(Top 249%)
10K6.21 mi3.10 mi3788-3523584-3073584-3074252(Top 17%)3988(Top 27%)3988(Top 199%)
15K9.32 mi3.11 mi4314-5264043-4594043-4595498(Top 22%)5004(Top 34%)5004(Top 249%)
20K12.43 mi3.11 mi4756-4424413-3704413-3705829(Top 23%)5193(Top 36%)5193(Top 258%)
Half13.11 mi0.68 mi4886-1304526-1134526-1136483(Top 25%)5636(Top 39%)5636(Top 281%)
25K15.53 mi2.42 mi5101-2154670-1444670-1446014(Top 24%)5188(Top 36%)5188(Top 258%)
30K18.64 mi3.11 mi5194-934709-394709-396090(Top 24%)5063(Top 35%)5063(Top 252%)
20M20.00 mi1.36 mi5204-104696+134696+136251(Top 24%)5001(Top 34%)5001(Top 249%)
21M21.00 mi1.00 mi5169+354637+594637+596121(Top 24%)4746(Top 33%)4746(Top 236%)
35K21.75 mi0.75 mi5076+934541+964541+964389(Top 17%)3726(Top 26%)3726(Top 185%)
23M23.00 mi1.25 mi4983+934450+914450+915225(Top 20%)4103(Top 28%)4103(Top 204%)
24M24.00 mi1.00 mi4891+924353+974353+974767(Top 19%)3773(Top 26%)3773(Top 188%)
40K24.85 mi0.85 mi4830+614284+694284+695649(Top 22%)4142(Top 28%)4142(Top 206%)
25.2M25.20 mi0.35 mi4842-124279+54279+56451(Top 25%)4506(Top 31%)4506(Top 224%)
Finish26.22 mi1.02 mi4847-54257+224257+226828(Top 27%)4772(Top 33%)4772(Top 238%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 22%
×21stories
+97ft-345ft

Overall

5498

Males

5004

M40-44

5004

5K→10K

3.1 - 6.2 mi

Top 17%
×5stories
+79ft-138ft

Overall

4252

Males

3988

M40-44

3988

10K→15K

6.2 - 9.3 mi

Top 22%
×3stories
+67ft-78ft

Overall

5498

Males

5004

M40-44

5004

15K→20K

9.3 - 12.4 mi

Top 23%
×5stories
+106ft-86ft

Overall

5829

Males

5193

M40-44

5193

20K→Half

12.4 - 13.1 mi

Top 25%
×2stories
+19ft-37ft

Overall

6483

Males

5636

M40-44

5636

Half→25K

13.1 - 15.5 mi

Top 24%
×4stories
+66ft-88ft

Overall

6014

Males

5188

M40-44

5188

25K→30K

15.5 - 18.6 mi

Top 24%
×9stories
+181ft-148ft

Overall

6090

Males

5063

M40-44

5063

30K→20M

18.6 - 20.0 mi

Top 24%
×5stories
+64ft-50ft

Overall

6251

Males

5001

M40-44

5001

20M→21M

20.0 - 21.0 mi

Top 24%
×8stories
+106ft-24ft

Overall

6121

Males

4746

M40-44

4746

21M→35K

21.0 - 21.8 mi

Top 17%
×7stories
+17ft-86ft

Overall

4389

Males

3726

M40-44

3726

35K→23M

21.8 - 23.0 mi

Top 20%
×5stories
+23ft-63ft

Overall

5225

Males

4103

M40-44

4103

23M→24M

23.0 - 24.0 mi

Top 19%
×6stories
+12ft-82ft

Overall

4767

Males

3773

M40-44

3773

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

5649

Males

4142

M40-44

4142

40K→25.2M

24.9 - 25.2 mi

Top 25%
×1story
+13ft-16ft

Overall

6451

Males

4506

M40-44

4506

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2stories
+22ft-21ft

Overall

6828

Males

4772

M40-44

4772

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1156
Passed By
2567
Net Change
-1411
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3436
5K10K51403-352#3436#3788
10K15K28554-526#3788#4314
15K20K57499-442#4314#4756
20KHalf6136-130#4756#4886
Half25K120335-215#4886#5101
25K30K151244-93#5101#5194
30K20M96106-10#5194#5204
20M21M10065+35#5204#5169
21M35K11320+93#5169#5076
35K23M13340+93#5076#4983
23M24M12028+92#4983#4891
24M40K9029+61#4891#4830
40K25.2M2941-12#4830#4842
25.2MFinish6267-5#4842#4847
TOTALS11562567-1411
📊

Passing Analysis Visualizations

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

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing