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BOSTON MARATHON 2023

Yuichi Sano

Bib: 10281•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 34%
Gender (Male)
#0 / 15176
Top 48%
Masters (Masters Men)
#0 / 9891
Top 36%
Division (M45-49)
#0 / 2252
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:28
Rank: #7689
Start → 5K
7:14/mi
22:28 split
10K· 6.21 mi
44:34
Rank: #7586 (+103)
5K → 10K
7:07/mi
22:06 split
15K· 9.32 mi
1:07:58
Rank: #8403 (-817)
10K → 15K
7:32/mi
23:24 split
20K· 12.43 mi
1:30:57
Rank: #8382 (+21)
15K → 20K
7:24/mi
22:59 split
Half· 13.11 mi
1:36:04
Rank: #8470 (-88)
20K → Half
7:30/mi
5:07 split
25K· 15.53 mi
1:54:31
Rank: #8610 (-140)
Half → 25K
7:37/mi
18:27 split
30K· 18.64 mi
2:19:00
Rank: #8802 (-192)
25K → 30K
7:53/mi
24:29 split
20M
2:29:46
Rank: #8860 (-58)
30K → 20M
7:55/mi
10:46 split
21M
2:38:16
Rank: #8937 (-77)
20M → 21M
8:30/mi
8:30 split
35K· 21.75 mi
2:43:55
Rank: #8923 (+14)
21M → 35K
7:33/mi
5:39 split
23M
2:53:56
Rank: #8947 (-24)
35K → 23M
8:00/mi
10:01 split
24M
3:01:45
Rank: #8966 (-19)
23M → 24M
7:49/mi
7:49 split
40K· 24.85 mi
3:08:28
Rank: #8939 (+27)
24M → 40K
7:51/mi
6:43 split
25.2M
3:11:21
Rank: #8925 (+14)
40K → 25.2M
8:22/mi
2:53 split
Finish· 26.22 mi
3:19:06
Rank: #8917 (+8)
25.2M → Finish
7:36/mi
7:45 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:04
Pace7:20 /mi
2nd Half
Distance13.11 mi
Time1:43:02
Pace7:52 /mi
📊Positive Split: 7.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:3722:287:1422:28
7:14
-
10K
6.21 mi11:10:4344:347:1022:06
7:07
-0:07
15K
9.32 mi11:34:071:07:587:1823:24
7:32
+0:25
20K
12.43 mi11:57:061:30:577:1922:59
7:24
-0:08
Half
13.11 mi12:02:131:36:047:205:07
7:30
+0:06
25K
15.53 mi12:20:401:54:317:2218:27
7:37
+0:07
30K
18.64 mi12:45:092:19:007:2724:29
7:53
+0:16
20M
20.00 mi12:55:552:29:467:2910:46
7:55
+0:02
21M
21.00 mi13:04:252:38:167:328:30
8:30
+0:35
35K
21.75 mi13:10:042:43:557:325:39
7:33
-0:57
23M
23.00 mi13:20:052:53:567:3410:01
8:00
+0:27
24M
24.00 mi13:27:543:01:457:347:49
7:49
-0:11
40K
24.85 mi13:34:373:08:287:356:43
7:51
+0:02
25.2M
25.20 mi13:37:303:11:217:362:53
8:22
+0:31
Finish
26.22 mi13:45:153:19:067:367:45
7:36
-0:46

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

7:07 /mi

Average Pace

7:36 /mi

Slowest Pace

8:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:15:44

68% of race

Time at Steady Pace

54:52

28% of race

Time at Slower Pace

8:30

4% of race

Average Pace: 7:36 /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 mi10:48:3722:287:1422:28
7:14
#7689
10K
6.21 mi11:10:4344:347:1022:06
7:07
#7586
15K
9.32 mi11:34:071:07:587:1823:24
7:32
#8403
20K
12.43 mi11:57:061:30:577:1922:59
7:24
#8382
Half
13.11 mi12:02:131:36:047:205:07
7:30
#8470
25K
15.53 mi12:20:401:54:317:2218:27
7:37
#8610
30K
18.64 mi12:45:092:19:007:2724:29
7:53
#8802
20M
20.00 mi12:55:552:29:467:2910:46
7:55
#8860
21M
21.00 mi13:04:252:38:167:328:30
8:30
#8937
35K
21.75 mi13:10:042:43:557:325:39
7:33
#8923
23M
23.00 mi13:20:052:53:567:3410:01
8:00
#8947
24M
24.00 mi13:27:543:01:457:347:49
7:49
#8966
40K
24.85 mi13:34:373:08:287:356:43
7:51
#8939
25.2M
25.20 mi13:37:303:11:217:362:53
8:22
#8925
Finish
26.22 mi13:45:153:19:067:367:45
7:36
#8917
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi76896773677310418(Top 39%)8365(Top 55%)8365(Top 371%)
10K6.21 mi3.10 mi7586+1036696+776696+777533(Top 28%)6628(Top 44%)6628(Top 294%)
15K9.32 mi3.11 mi8403-8177213-5177213-51710418(Top 39%)8365(Top 55%)8365(Top 371%)
20K12.43 mi3.11 mi8382+217185+287185+288488(Top 32%)7187(Top 47%)7187(Top 319%)
Half13.11 mi0.68 mi8470-887234-497234-4910156(Top 38%)8168(Top 54%)8168(Top 363%)
25K15.53 mi2.42 mi8610-1407300-667300-669596(Top 36%)7756(Top 51%)7756(Top 344%)
30K18.64 mi3.11 mi8802-1927387-877387-879965(Top 37%)7803(Top 51%)7803(Top 346%)
20M20.00 mi1.36 mi8860-587399-127399-129703(Top 36%)7578(Top 50%)7578(Top 337%)
21M21.00 mi1.00 mi8937-777426-277426-2710459(Top 39%)7828(Top 52%)7828(Top 348%)
35K21.75 mi0.75 mi8923+147407+197407+198888(Top 33%)7012(Top 46%)7012(Top 311%)
23M23.00 mi1.25 mi8947-247390+177390+179716(Top 36%)7339(Top 48%)7339(Top 326%)
24M24.00 mi1.00 mi8966-197373+177373+179886(Top 37%)7332(Top 48%)7332(Top 326%)
40K24.85 mi0.85 mi8939+277340+337340+339005(Top 34%)6815(Top 45%)6815(Top 303%)
25.2M25.20 mi0.35 mi8925+147321+197321+198627(Top 32%)6528(Top 43%)6528(Top 290%)
Finish26.22 mi1.02 mi8917+87299+227299+229288(Top 35%)6908(Top 46%)6908(Top 307%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
×21story building
+97ft-345ft

Overall

10418

Males

8365

M45-49

8365

5K→10K

3.1 - 6.2 mi

Top 28%
×5story building
+79ft-138ft

Overall

7533

Males

6628

M45-49

6628

10K→15K

6.2 - 9.3 mi

Top 39%
×3story building
+67ft-78ft

Overall

10418

Males

8365

M45-49

8365

15K→20K

9.3 - 12.4 mi

Top 32%
×5story building
+106ft-86ft

Overall

8488

Males

7187

M45-49

7187

20K→Half

12.4 - 13.1 mi

Top 38%
×2story building
+19ft-37ft

Overall

10156

Males

8168

M45-49

8168

Half→25K

13.1 - 15.5 mi

Top 36%
×4story building
+66ft-88ft

Overall

9596

Males

7756

M45-49

7756

25K→30K

15.5 - 18.6 mi

Top 37%
×9story building
+181ft-148ft

Overall

9965

Males

7803

M45-49

7803

30K→20M

18.6 - 20.0 mi

Top 36%
×5story building
+64ft-50ft

Overall

9703

Males

7578

M45-49

7578

20M→21M

20.0 - 21.0 mi

Top 39%
×8story building
+106ft-24ft

Overall

10459

Males

7828

M45-49

7828

21M→35K

21.0 - 21.8 mi

Top 33%
×7story building
+17ft-86ft

Overall

8888

Males

7012

M45-49

7012

35K→23M

21.8 - 23.0 mi

Top 36%
×5story building
+23ft-63ft

Overall

9716

Males

7339

M45-49

7339

23M→24M

23.0 - 24.0 mi

Top 37%
×6story building
+12ft-82ft

Overall

9886

Males

7332

M45-49

7332

24M→40K

24.0 - 24.9 mi

Top 34%
×1story
+6ft-20ft

Overall

9005

Males

6815

M45-49

6815

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

8627

Males

6528

M45-49

6528

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2story building
+22ft-21ft

Overall

9288

Males

6908

M45-49

6908

Passing Analysis

Category:
Athletes Passed
1056
Passed By
2284
Net Change
-1228
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7689
5K → 10K278175+103#7689#7586
10K → 15K13830-817#7586#8403
15K → 20K142121+21#8403#8382
20K → Half492-88#8382#8470
Half → 25K55195-140#8470#8610
25K → 30K112304-192#8610#8802
30K → 20M63121-58#8802#8860
20M → 21M54131-77#8860#8937
21M → 35K4834+14#8937#8923
35K → 23M6892-24#8923#8947
23M → 24M6483-19#8947#8966
24M → 40K6336+27#8966#8939
40K → 25.2M3117+14#8939#8925
25.2M → Finish6153+8#8925#8917
TOTALS10562284-1228
📊

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