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BOSTON MARATHON 2023

Masashi Hirano

Bib: 4838•M

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 10%
Gender (Male)
#0 / 15176
Top 16%
Masters (Masters Men)
#0 / 9891
Top 6%
Division (M50-54)
#0 / 2052
Top 3%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:37
Rank: #3118
Start → 5K
20:37 | 6:38/mi
10K· 6.21 mi
41:16
Rank: #3451 (-333)
5K → 10K
20:39 | 6:39/mi
15K· 9.32 mi
1:01:59
Rank: #3554 (-103)
10K → 15K
20:43 | 6:40/mi
20K· 12.43 mi
1:22:56
Rank: #3621 (-67)
15K → 20K
20:57 | 6:45/mi
Half· 13.11 mi
1:27:24
Rank: #3583 (+38)
20K → Half
4:28 | 6:33/mi
25K· 15.53 mi
1:43:36
Rank: #3503 (+80)
Half → 25K
16:12 | 6:41/mi
30K· 18.64 mi
2:04:36
Rank: #3319 (+184)
25K → 30K
21:00 | 6:46/mi
20M
2:13:39
Rank: #3163 (+156)
30K → 20M
9:03 | 6:40/mi
21M
2:20:33
Rank: #3038 (+125)
20M → 21M
6:54 | 6:54/mi
35K· 21.75 mi
2:25:19
Rank: #2963 (+75)
21M → 35K
4:46 | 6:22/mi
23M
2:33:33
Rank: #2825 (+138)
35K → 23M
8:14 | 6:35/mi
24M
2:40:01
Rank: #2748 (+77)
23M → 24M
6:28 | 6:28/mi
40K· 24.85 mi
2:45:34
Rank: #2662 (+86)
24M → 40K
5:33 | 6:29/mi
25.2M
2:47:57
Rank: #2632 (+30)
40K → 25.2M
2:23 | 6:55/mi
Finish· 26.22 mi
2:54:25
Rank: #2565 (+67)
25.2M → Finish
6:28 | 6:21/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:27:24
Pace6:40 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:27:01
Pace6:38 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:2120:376:3820:37
6:38
-
10K
6.21 mi10:43:0041:166:3820:39
6:39
+0:01
15K
9.32 mi11:03:431:01:596:3920:43
6:40
+0:01
20K
12.43 mi11:24:401:22:566:4020:57
6:45
+0:05
Half
13.11 mi11:29:081:27:246:404:28
6:33
-0:12
25K
15.53 mi11:45:201:43:366:4016:12
6:41
+0:08
30K
18.64 mi12:06:202:04:366:4121:00
6:46
+0:05
20M
20.00 mi12:15:232:13:396:419:03
6:40
-0:06
21M
21.00 mi12:22:172:20:336:426:54
6:54
+0:14
35K
21.75 mi12:27:032:25:196:414:46
6:22
-0:32
23M
23.00 mi12:35:172:33:336:418:14
6:35
+0:13
24M
24.00 mi12:41:452:40:016:406:28
6:28
-0:07
40K
24.85 mi12:47:182:45:346:405:33
6:29
+0:01
25.2M
25.20 mi12:49:412:47:576:402:23
6:55
+0:26
Finish
26.22 mi12:56:092:54:256:396:28
6:21
-0:34

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

6:21 /mi

Average Pace

6:39 /mi

Slowest Pace

6:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:46:59

61% of race

Time at Steady Pace

1:07:26

39% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:39 /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 mi10:22:2120:376:3820:37
6:38
#3118
10K
6.21 mi10:43:0041:166:3820:39
6:39
#3451
15K
9.32 mi11:03:431:01:596:3920:43
6:40
#3554
20K
12.43 mi11:24:401:22:566:4020:57
6:45
#3621
Half
13.11 mi11:29:081:27:246:404:28
6:33
#3583
25K
15.53 mi11:45:201:43:366:4016:12
6:41
#3503
30K
18.64 mi12:06:202:04:366:4121:00
6:46
#3319
20M
20.00 mi12:15:232:13:396:419:03
6:40
#3163
21M
21.00 mi12:22:172:20:336:426:54
6:54
#3038
35K
21.75 mi12:27:032:25:196:414:46
6:22
#2963
23M
23.00 mi12:35:172:33:336:418:14
6:35
#2825
24M
24.00 mi12:41:452:40:016:406:28
6:28
#2748
40K
24.85 mi12:47:182:45:346:405:33
6:29
#2662
25.2M
25.20 mi12:49:412:47:576:402:23
6:55
#2632
Finish
26.22 mi12:56:092:54:256:396:28
6:21
#2565
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi3118294629463812(Top 14%)3583(Top 24%)3583(Top 175%)
10K6.21 mi3.10 mi3451-3333259-3133259-3133845(Top 14%)3622(Top 24%)3622(Top 177%)
15K9.32 mi3.11 mi3554-1033361-1023361-1023812(Top 14%)3583(Top 24%)3583(Top 175%)
20K12.43 mi3.11 mi3621-673427-663427-663901(Top 15%)3675(Top 24%)3675(Top 179%)
Half13.11 mi0.68 mi3583+383391+363391+363037(Top 11%)2902(Top 19%)2902(Top 141%)
25K15.53 mi2.42 mi3503+803323+683323+683216(Top 12%)3064(Top 20%)3064(Top 149%)
30K18.64 mi3.11 mi3319+1843149+1743149+1742732(Top 10%)2594(Top 17%)2594(Top 126%)
20M20.00 mi1.36 mi3163+1563007+1423007+1422123(Top 8%)2024(Top 13%)2024(Top 99%)
21M21.00 mi1.00 mi3038+1252891+1162891+1161774(Top 7%)1687(Top 11%)1687(Top 82%)
35K21.75 mi0.75 mi2963+752821+702821+701875(Top 7%)1781(Top 12%)1781(Top 87%)
23M23.00 mi1.25 mi2825+1382692+1292692+1291706(Top 6%)1620(Top 11%)1620(Top 79%)
24M24.00 mi1.00 mi2748+772619+732619+731969(Top 7%)1850(Top 12%)1850(Top 90%)
40K24.85 mi0.85 mi2662+862540+792540+791519(Top 6%)1433(Top 9%)1433(Top 70%)
25.2M25.20 mi0.35 mi2632+302511+292511+291496(Top 6%)1413(Top 9%)1413(Top 69%)
Finish26.22 mi1.02 mi2565+672445+662445+661810(Top 7%)1694(Top 11%)1694(Top 83%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21stories
+97ft-345ft

Overall

3812

Males

3583

M50-54

3583

5K→10K

3.1 - 6.2 mi

Top 14%
×5stories
+79ft-138ft

Overall

3845

Males

3622

M50-54

3622

10K→15K

6.2 - 9.3 mi

Top 14%
×3stories
+67ft-78ft

Overall

3812

Males

3583

M50-54

3583

15K→20K

9.3 - 12.4 mi

Top 15%
×5stories
+106ft-86ft

Overall

3901

Males

3675

M50-54

3675

20K→Half

12.4 - 13.1 mi

Top 11%
×2stories
+19ft-37ft

Overall

3037

Males

2902

M50-54

2902

Half→25K

13.1 - 15.5 mi

Top 12%
×4stories
+66ft-88ft

Overall

3216

Males

3064

M50-54

3064

25K→30K

15.5 - 18.6 mi

Top 10%
×9stories
+181ft-148ft

Overall

2732

Males

2594

M50-54

2594

30K→20M

18.6 - 20.0 mi

Top 8%
×5stories
+64ft-50ft

Overall

2123

Males

2024

M50-54

2024

20M→21M

20.0 - 21.0 mi

Top 7%
×8stories
+106ft-24ft

Overall

1774

Males

1687

M50-54

1687

21M→35K

21.0 - 21.8 mi

Top 7%
×7stories
+17ft-86ft

Overall

1875

Males

1781

M50-54

1781

35K→23M

21.8 - 23.0 mi

Top 6%
×5stories
+23ft-63ft

Overall

1706

Males

1620

M50-54

1620

23M→24M

23.0 - 24.0 mi

Top 7%
×6stories
+12ft-82ft

Overall

1969

Males

1850

M50-54

1850

24M→40K

24.0 - 24.9 mi

Top 6%
×1story
+6ft-20ft

Overall

1519

Males

1433

M50-54

1433

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1496

Males

1413

M50-54

1413

25.2M→Finish

25.2 - 26.2 mi

Top 7%
×2stories
+22ft-21ft

Overall

1810

Males

1694

M50-54

1694

Passing Analysis

Category:
Athletes Passed
1360
Passed By
807
Net Change
+553
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3118
5K → 10K62395-333#3118#3451
10K → 15K70173-103#3451#3554
15K → 20K61128-67#3554#3621
20K → Half457+38#3621#3583
Half → 25K11434+80#3583#3503
25K → 30K20622+184#3503#3319
30K → 20M1593+156#3319#3163
20M → 21M1294+125#3163#3038
21M → 35K827+75#3038#2963
35K → 23M1413+138#2963#2825
23M → 24M9114+77#2825#2748
24M → 40K915+86#2748#2662
40K → 25.2M311+30#2662#2632
25.2M → Finish7811+67#2632#2565
TOTALS1360807+553
📊

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