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Tetsuya Sakurai

Bib: 10875•M

0:00

0:00

/ mi

Masters

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Overall

#0 / 29021

Top 38%

Gender (Male)

#0 / 16340

Masters (Masters Men)

#0 / 10617

Top 40%

Age Group (M65-69)

#0 / 774

Top 2%

Race Day Weather

51°/41°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

Start

0:00:00

Race begins

21:23

3.11 mi

Rank: #7592

Start → 5K

21:23 | 6:53/mi

21:23

3.11 mi

Rank: #7592

Start → 5K

21:23 | 6:53/mi

10K

42:53

6.21 mi

Rank: #7845 (-253)

5K → 10K

21:30 | 6:56/mi

10K

42:53

6.21 mi

Rank: #7845 (-253)

5K → 10K

21:30 | 6:56/mi

15K

1:05:06

9.32 mi

Rank: #8462 (-617)

10K → 15K

22:13 | 7:10/mi

15K

1:05:06

9.32 mi

Rank: #8462 (-617)

10K → 15K

22:13 | 7:10/mi

20K

1:28:31

12.43 mi

Rank: #9262

15K → 20K

23:25 | 7:33/mi

20K

1:28:31

12.43 mi

Rank: #9262

15K → 20K

23:25 | 7:33/mi

HALF

1:33:37

13.11 mi

Rank: #9408

20K → HALF

5:06 | 7:29/mi

HALF

1:33:37

13.11 mi

Rank: #9408

20K → HALF

5:06 | 7:29/mi

25K

1:52:00

15.53 mi

Rank: #9791

HALF → 25K

18:23 | 7:35/mi

25K

1:52:00

15.53 mi

Rank: #9791

HALF → 25K

18:23 | 7:35/mi

30K

2:16:35

18.64 mi

Rank: #10298

25K → 30K

24:35 | 7:55/mi

30K

2:16:35

18.64 mi

Rank: #10298

25K → 30K

24:35 | 7:55/mi

20M

2:27:34

20.00 mi

Rank: #10567

30K → 20M

10:59 | 8:06/mi

20M

2:27:34

20.00 mi

Rank: #10567

30K → 20M

10:59 | 8:06/mi

21M

2:36:05

21.00 mi

Rank: #10723

20M → 21M

8:31 | 8:31/mi

21M

2:36:05

21.00 mi

Rank: #10723

20M → 21M

8:31 | 8:31/mi

35K

2:42:03

21.75 mi

Rank: #10844

21M → 35K

5:58 | 7:59/mi

35K

2:42:03

21.75 mi

Rank: #10844

21M → 35K

5:58 | 7:59/mi

23M

2:51:59

23.00 mi

Rank: #10869

35K → 23M

9:56 | 7:57/mi

23M

2:51:59

23.00 mi

Rank: #10869

35K → 23M

9:56 | 7:57/mi

24M

2:59:45

24.00 mi

Rank: #10876

23M → 24M

7:46 | 7:46/mi

24M

2:59:45

24.00 mi

Rank: #10876

23M → 24M

7:46 | 7:46/mi

40K

3:06:44

24.85 mi

Rank: #10968

24M → 40K

6:59 | 8:11/mi

40K

3:06:44

24.85 mi

Rank: #10968

24M → 40K

6:59 | 8:11/mi

25.2M

3:09:45

25.20 mi

Rank: #10990

40K → 25.2M

3:01 | 8:45/mi

25.2M

3:09:45

25.20 mi

Rank: #10990

40K → 25.2M

3:01 | 8:45/mi

FINISH

3:17:42

26.22 mi

Rank: #11059

25.2M → FINISH

7:57 | 7:49/mi

FINISH

3:17:42

26.22 mi

Rank: #11059

25.2M → FINISH

7:57 | 7:49/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster

via HALF

Distance13.11 mi

Time1:33:37

Pace7:09 /mi

2nd Half

Spacer

Distance13.11 mi

Time1:44:05

Pace7:57 /mi

📊Positive Split: 11.2% slower second half

Checkpoint Splits

Checkpoint	Distance	Time of Day	Time	Avg Pace	Segment Time	Segment Pace	Diff
5K	3.11 mi	10:39:01	21:23	6:53	21:23	6:53	-
10K	6.21 mi	11:00:31	42:53	6:55	21:30	6:56	+0:03
15K	9.32 mi	11:22:44	1:05:06	7:00	22:13	7:10	+0:14
20K	12.43 mi	11:46:09	1:28:31	7:08	23:25	7:33	+0:23
HALF	13.11 mi	11:51:15	1:33:37	7:09	5:06	7:29	-0:04
25K	15.53 mi	12:09:38	1:52:00	7:13	18:23	7:35	+0:06
30K	18.64 mi	12:34:13	2:16:35	7:20	24:35	7:55	+0:20
20M	20.00 mi	12:45:12	2:27:34	7:23	10:59	8:06	+0:11
21M	21.00 mi	12:53:43	2:36:05	7:26	8:31	8:31	+0:25
35K	21.75 mi	12:59:41	2:42:03	7:28	5:58	7:59	-0:32
23M	23.00 mi	13:09:37	2:51:59	7:29	9:56	7:57	-0:02
24M	24.00 mi	13:17:23	2:59:45	7:30	7:46	7:46	-0:11
40K	24.85 mi	13:24:22	3:06:44	7:31	6:59	8:11	+0:25
25.2M	25.20 mi	13:27:23	3:09:45	7:32	3:01	8:45	+0:34
FINISH	26.22 mi	13:35:20	3:17:42	7:33	7:57	7:49	-0:56

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

6:53 /mi

Average Pace

7:33 /mi

Slowest Pace

8:45 /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

1:33:37

47% of race

Time at Steady Pace

1:14:35

38% of race

Time at Slower Pace

29:30

15% of race

Average Pace: 7:32 /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.

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

Checkpoint	Distance	Time of Day	Time	Avg Pace	Segment	Pace	Rank
5K	3.11 mi	10:39:01	21:23	6:53	21:23	6:53	#7592
10K	6.21 mi	11:00:31	42:53	6:55	21:30	6:56	#7845
15K	9.32 mi	11:22:44	1:05:06	7:00	22:13	7:10	#8462
20K	12.43 mi	11:46:09	1:28:31	7:08	23:25	7:33	#9262
HALF	13.11 mi	11:51:15	1:33:37	7:09	5:06	7:29	#9408
25K	15.53 mi	12:09:38	1:52:00	7:13	18:23	7:35	#9791
30K	18.64 mi	12:34:13	2:16:35	7:20	24:35	7:55	#10298
20M	20.00 mi	12:45:12	2:27:34	7:23	10:59	8:06	#10567
21M	21.00 mi	12:53:43	2:36:05	7:26	8:31	8:31	#10723
35K	21.75 mi	12:59:41	2:42:03	7:28	5:58	7:59	#10844
23M	23.00 mi	13:09:37	2:51:59	7:29	9:56	7:57	#10869
24M	24.00 mi	13:17:23	2:59:45	7:30	7:46	7:46	#10876
40K	24.85 mi	13:24:22	3:06:44	7:31	6:59	8:11	#10968
25.2M	25.20 mi	13:27:23	3:09:45	7:32	3:01	8:45	#10990
FINISH	26.22 mi	13:35:20	3:17:42	7:33	7:57	7:49	#11059

Faster pace

Steady pace

Slower pace

Rankings

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

Checkpoint and Segment Rankings

Checkpoint	Distance	Seg. Dist	Overall	Males	M65-69	Seg. Overall	Seg. Males	Seg. M65-69
5K	3.11 mi	3.11 mi	7592	6627	6627	9694(Top 33%)	7873(Top 48%)	7873(Top 1017%)
10K	6.21 mi	3.10 mi	7845-253	6790-163	6790-163	8083(Top 28%)	6944(Top 42%)	6944(Top 897%)
15K	9.32 mi	3.11 mi	8462-617	7181-391	7181-391	9694(Top 33%)	7873(Top 48%)	7873(Top 1017%)
20K	12.43 mi	3.11 mi	9262-800	7649-468	7649-468	12282(Top 42%)	8971(Top 55%)	8971(Top 1159%)
HALF	13.11 mi	0.68 mi	9408-146	7722-73	7722-73	12780(Top 44%)	9249(Top 57%)	9249(Top 1195%)
25K	15.53 mi	2.42 mi	9791-383	7889-167	7889-167	12081(Top 42%)	8817(Top 54%)	8817(Top 1139%)
30K	18.64 mi	3.11 mi	10298-507	8078-189	8078-189	12823(Top 44%)	9020(Top 55%)	9020(Top 1165%)
20M	20.00 mi	1.36 mi	10567-269	8184-106	8184-106	13368(Top 46%)	9164(Top 56%)	9164(Top 1184%)
21M	21.00 mi	1.00 mi	10723-156	8235-51	8235-51	13178(Top 45%)	8976(Top 55%)	8976(Top 1160%)
35K	21.75 mi	0.75 mi	10844-121	8270-35	8270-35	14252(Top 49%)	9418(Top 58%)	9418(Top 1217%)
23M	23.00 mi	1.25 mi	10869-25	8265+5	8265+5	12002(Top 41%)	8356(Top 51%)	8356(Top 1080%)
24M	24.00 mi	1.00 mi	10876-7	8238+27	8238+27	11993(Top 41%)	8242(Top 50%)	8242(Top 1065%)
40K	24.85 mi	0.85 mi	10968-92	8259-21	8259-21	13543(Top 47%)	8851(Top 54%)	8851(Top 1144%)
25.2M	25.20 mi	0.35 mi	10990-22	8266-7	8266-7	13118(Top 45%)	8626(Top 53%)	8626(Top 1114%)
FINISH	26.22 mi	1.02 mi	11059-69	8262+4	8262+4	13741(Top 47%)	8894(Top 54%)	8894(Top 1149%)

8894

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Position interactions are being recalculated

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Activity Data

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Results processed 3 months ago

Public Race Data

Enhanced athlete results built from publicly available data.

Race managed by

Boston Athletic Association

Race timed by

Mika Timing

Tetsuya Sakurai

Race Timeline and Course Information

⏱️ Race Timeline

Race Animation with Course Map

Splits & Pacing

Half Splits

Checkpoint Splits

Checkpoint Splits Visualizations

📈Pace Line

Pace Progression

📊Segments

Segment Time Comparison

🎨Heatmap

Pace Heatmap

✨Sparklines

Checkpoint Splits with Pace Trends

Rankings

Checkpoint and Segment Rankings

Segment Performance Analysis

10K→15K

5K→10K

10K→15K

15K→20K

20K→HALF

HALF→25K

25K→30K

30K→20M

20M→21M

21M→35K

35K→23M

23M→24M

24M→40K

40K→25.2M

25.2M→FINISH

Passing

Passing Analysis

Activity Data

Export & Support

Export Track Data

Questions or issues regarding timing data?

Quick Links

All Results

Race Analytics

Course Information

Contact Time Management

Public Race Data