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BOSTON MARATHON 2023

Asao Itaya

Bib: 16375•M

OH

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:12
Rank: #14792
Start → 5K
25:12 | 8:07/mi
10K· 6.21 mi
50:42
Rank: #15523 (-731)
5K → 10K
25:30 | 8:12/mi
15K· 9.32 mi
1:16:40
Rank: #16004 (-481)
10K → 15K
25:58 | 8:21/mi
20K· 12.43 mi
1:43:24
Rank: #16428 (-424)
15K → 20K
26:44 | 8:36/mi
Half· 13.11 mi
1:49:13
Rank: #16501 (-73)
20K → Half
5:49 | 8:32/mi
25K· 15.53 mi
2:10:38
Rank: #16798 (-297)
Half → 25K
21:25 | 8:50/mi
30K· 18.64 mi
2:38:33
Rank: #16812 (-14)
25K → 30K
27:55 | 8:59/mi
20M
2:50:52
Rank: #16792 (+20)
30K → 20M
12:19 | 9:04/mi
21M
3:00:31
Rank: #16772 (+20)
20M → 21M
9:39 | 9:39/mi
35K· 21.75 mi
3:07:15
Rank: #16814 (-42)
21M → 35K
6:44 | 9:00/mi
23M
3:18:41
Rank: #16813 (+1)
35K → 23M
11:26 | 9:08/mi
24M
3:27:28
Rank: #16775 (+38)
23M → 24M
8:47 | 8:47/mi
40K· 24.85 mi
3:34:56
Rank: #16700 (+75)
24M → 40K
7:28 | 8:44/mi
25.2M
3:38:12
Rank: #16653 (+47)
40K → 25.2M
3:16 | 9:28/mi
Finish· 26.22 mi
3:47:02
Rank: #16629 (+24)
25.2M → Finish
8:50 | 8:40/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:13
Pace8:20 /mi
2nd Half
Distance13.11 mi
Time1:57:49
Pace8:59 /mi
📊Positive Split: 7.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:3725:128:0725:12
8:07
-
10K
6.21 mi11:41:0750:428:1025:30
8:12
+0:05
15K
9.32 mi12:07:051:16:408:1425:58
8:21
+0:09
20K
12.43 mi12:33:491:43:248:1926:44
8:36
+0:15
Half
13.11 mi12:39:381:49:138:205:49
8:32
-0:04
25K
15.53 mi13:01:032:10:388:2521:25
8:50
+0:18
30K
18.64 mi13:28:582:38:338:3027:55
8:59
+0:09
20M
20.00 mi13:41:172:50:528:3312:19
9:04
+0:05
21M
21.00 mi13:50:563:00:318:369:39
9:39
+0:35
35K
21.75 mi13:57:403:07:158:376:44
9:00
-0:39
23M
23.00 mi14:09:063:18:418:3811:26
9:08
+0:08
24M
24.00 mi14:17:533:27:288:398:47
8:47
-0:21
40K
24.85 mi14:25:213:34:568:397:28
8:44
-0:03
25.2M
25.20 mi14:28:373:38:128:403:16
9:28
+0:44
Finish
26.22 mi14:37:273:47:028:408:50
8:40
-0:48

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

8:07 /mi

Average Pace

8:40 /mi

Slowest Pace

9:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:35:43

69% of race

Time at Steady Pace

1:01:40

27% of race

Time at Slower Pace

9:39

4% of race

Average Pace: 8:40 /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 mi11:15:3725:128:0725:12
8:07
#14792
10K
6.21 mi11:41:0750:428:1025:30
8:12
#15523
15K
9.32 mi12:07:051:16:408:1425:58
8:21
#16004
20K
12.43 mi12:33:491:43:248:1926:44
8:36
#16428
Half
13.11 mi12:39:381:49:138:205:49
8:32
#16501
25K
15.53 mi13:01:032:10:388:2521:25
8:50
#16798
30K
18.64 mi13:28:582:38:338:3027:55
8:59
#16812
20M
20.00 mi13:41:172:50:528:3312:19
9:04
#16792
21M
21.00 mi13:50:563:00:318:369:39
9:39
#16772
35K
21.75 mi13:57:403:07:158:376:44
9:00
#16814
23M
23.00 mi14:09:063:18:418:3811:26
9:08
#16813
24M
24.00 mi14:17:533:27:288:398:47
8:47
#16775
40K
24.85 mi14:25:213:34:568:397:28
8:44
#16700
25.2M
25.20 mi14:28:373:38:128:403:16
9:28
#16653
Finish
26.22 mi14:37:273:47:028:408:50
8:40
#16629
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi14792102631026316897(Top 63%)11030(Top 73%)11030(Top 776%)
10K6.21 mi3.10 mi15523-73110520-25710520-25716301(Top 61%)10826(Top 71%)10826(Top 761%)
15K9.32 mi3.11 mi16004-48110701-18110701-18116897(Top 63%)11030(Top 73%)11030(Top 776%)
20K12.43 mi3.11 mi16428-42410846-14510846-14517510(Top 66%)11257(Top 74%)11257(Top 792%)
Half13.11 mi0.68 mi16501-7310867-2110867-2117802(Top 67%)11408(Top 75%)11408(Top 802%)
25K15.53 mi2.42 mi16798-29710944-7710944-7718118(Top 68%)11479(Top 76%)11479(Top 807%)
30K18.64 mi3.11 mi16812-1410938+610938+617082(Top 64%)10945(Top 72%)10945(Top 770%)
20M20.00 mi1.36 mi16792+2010913+2510913+2516854(Top 63%)10767(Top 71%)10767(Top 757%)
21M21.00 mi1.00 mi16772+2010901+1210901+1216626(Top 62%)10626(Top 70%)10626(Top 747%)
35K21.75 mi0.75 mi16814-4210908-710908-717888(Top 67%)11089(Top 73%)11089(Top 780%)
23M23.00 mi1.25 mi16813+110884+2410884+2416682(Top 63%)10534(Top 69%)10534(Top 741%)
24M24.00 mi1.00 mi16775+3810845+3910845+3916089(Top 60%)10217(Top 67%)10217(Top 718%)
40K24.85 mi0.85 mi16700+7510798+4710798+4714704(Top 55%)9554(Top 63%)9554(Top 672%)
25.2M25.20 mi0.35 mi16653+4710771+2710771+2715026(Top 56%)9702(Top 64%)9702(Top 682%)
Finish26.22 mi1.02 mi16629+2410753+1810753+1816324(Top 61%)10304(Top 68%)10304(Top 725%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21stories
+97ft-345ft

Overall

16897

Males

11030

M55-59

11030

5K→10K

3.1 - 6.2 mi

Top 61%
×5stories
+79ft-138ft

Overall

16301

Males

10826

M55-59

10826

10K→15K

6.2 - 9.3 mi

Top 63%
×3stories
+67ft-78ft

Overall

16897

Males

11030

M55-59

11030

15K→20K

9.3 - 12.4 mi

Top 66%
×5stories
+106ft-86ft

Overall

17510

Males

11257

M55-59

11257

20K→Half

12.4 - 13.1 mi

Top 67%
×2stories
+19ft-37ft

Overall

17802

Males

11408

M55-59

11408

Half→25K

13.1 - 15.5 mi

Top 68%
×4stories
+66ft-88ft

Overall

18118

Males

11479

M55-59

11479

25K→30K

15.5 - 18.6 mi

Top 64%
×9stories
+181ft-148ft

Overall

17082

Males

10945

M55-59

10945

30K→20M

18.6 - 20.0 mi

Top 63%
×5stories
+64ft-50ft

Overall

16854

Males

10767

M55-59

10767

20M→21M

20.0 - 21.0 mi

Top 62%
×8stories
+106ft-24ft

Overall

16626

Males

10626

M55-59

10626

21M→35K

21.0 - 21.8 mi

Top 67%
×7stories
+17ft-86ft

Overall

17888

Males

11089

M55-59

11089

35K→23M

21.8 - 23.0 mi

Top 63%
×5stories
+23ft-63ft

Overall

16682

Males

10534

M55-59

10534

23M→24M

23.0 - 24.0 mi

Top 60%
×6stories
+12ft-82ft

Overall

16089

Males

10217

M55-59

10217

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

14704

Males

9554

M55-59

9554

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

15026

Males

9702

M55-59

9702

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2stories
+22ft-21ft

Overall

16324

Males

10304

M55-59

10304

Passing Analysis

Category:
Athletes Passed
1055
Passed By
2892
Net Change
-1837
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14792
5K → 10K80811-731#14792#15523
10K → 15K67548-481#15523#16004
15K → 20K64488-424#16004#16428
20K → Half1386-73#16428#16501
Half → 25K65362-297#16501#16798
25K → 30K171185-14#16798#16812
30K → 20M9171+20#16812#16792
20M → 21M8565+20#16792#16772
21M → 35K3577-42#16772#16814
35K → 23M8483+1#16814#16813
23M → 24M8547+38#16813#16775
24M → 40K9621+75#16775#16700
40K → 25.2M558+47#16700#16653
25.2M → Finish6440+24#16653#16629
TOTALS10552892-1837
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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