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BOSTON MARATHON 2023

Akihiro Hori

Bib: 23383•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M70-74)
#0 / 213
Top 21%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:37/mi
26:47
↑ 97↓ 3451.5%
10K· 6.21 mi
8:34/mi
53:23
↑ 79↓ 1380.4%
15K· 9.32 mi
8:45/mi
1:20:33
↑ 67↓ 78
20K· 12.43 mi
8:53/mi
1:48:10
↑ 106↓ 860.1%
Half· 13.11 mi
9:10/mi
1:54:25
↑ 19↓ 370.5%
25K· 15.53 mi
8:58/mi
2:16:09
↑ 66↓ 880.2%
30K· 18.64 mi
9:32/mi
2:45:46
↑ 181↓ 1480.2%
20M
9:27/mi
2:58:37
↑ 64↓ 500.2%
21M
11:11/mi
3:09:48
↑ 106↓ 241.6%
35K· 21.75 mi
9:12/mi
3:16:41
↑ 17↓ 861.7%
23M
9:56/mi
3:29:07
↑ 23↓ 630.6%
24M
9:43/mi
3:38:50
↓ 821.3%
40K· 24.85 mi
11:16/mi
3:48:28
↓ 200.3%
25.2M
10:32/mi
3:52:06
↑ 13↓ 160.2%
Finish· 26.22 mi
9:42/mi
4:01:59
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:25
Pace8:44 /mi
2nd Half
Distance13.11 mi
Time2:07:34
Pace9:44 /mi
📊Positive Split: 11.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:4226:478:3726:47
8:37
-
10K
6.21 mi11:48:1853:238:3526:36
8:34
-0:03
15K
9.32 mi12:15:281:20:338:3927:10
8:45
+0:11
20K
12.43 mi12:43:051:48:108:4227:37
8:53
+0:08
Half
13.11 mi12:49:201:54:258:446:15
9:10
+0:17
25K
15.53 mi13:11:042:16:098:4621:44
8:58
-0:12
30K
18.64 mi13:40:412:45:468:5429:37
9:32
+0:34
20M
20.00 mi13:53:322:58:378:5612:51
9:27
-0:05
21M
21.00 mi14:04:433:09:489:0211:11
11:11
+1:44
35K
21.75 mi14:11:363:16:419:036:53
9:12
-1:59
23M
23.00 mi14:24:023:29:079:0612:26
9:56
+0:44
24M
24.00 mi14:33:453:38:509:079:43
9:43
-0:13
40K
24.85 mi14:43:233:48:289:129:38
11:16
+1:33
25.2M
25.20 mi14:47:013:52:069:133:38
10:32
-0:44
Finish
26.22 mi14:56:544:01:599:149:53
9:42
-0:50

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

8:34 /mi

Average Pace

9:14 /mi

Slowest Pace

11:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:09:54

54% of race

Time at Steady Pace

1:15:12

31% of race

Time at Slower Pace

36:53

15% of race

Average Pace: 9:14 /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 mi11:21:4226:478:3726:47
8:37
#18343
10K
6.21 mi11:48:1853:238:3526:36
8:34
#18480
15K
9.32 mi12:15:281:20:338:3927:10
8:45
#18706
20K
12.43 mi12:43:051:48:108:4227:37
8:53
#18811
Half
13.11 mi12:49:201:54:258:446:15
9:10
#18957
25K
15.53 mi13:11:042:16:098:4621:44
8:58
#18916
30K
18.64 mi13:40:412:45:468:5429:37
9:32
#19067
20M
20.00 mi13:53:322:58:378:5612:51
9:27
#19029
21M
21.00 mi14:04:433:09:489:0211:11
11:11
#19216
35K
21.75 mi14:11:363:16:419:036:53
9:12
#19216
23M
23.00 mi14:24:023:29:079:0612:26
9:56
#19261
24M
24.00 mi14:33:453:38:509:079:43
9:43
#19310
40K
24.85 mi14:43:233:48:289:129:38
11:16
#19536
25.2M
25.20 mi14:47:013:52:069:133:38
10:32
#19545
Finish
26.22 mi14:56:544:01:599:149:53
9:42
#19609
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM70-74Seg. OverallSeg. MalesSeg. M70-74
5K3.11 mi3.11 mi18343115481154819199(Top 72%)11962(Top 79%)11962(Top 5616%)
10K6.21 mi3.10 mi18480-13711645-9711645-9718628(Top 70%)11758(Top 77%)11758(Top 5520%)
15K9.32 mi3.11 mi18706-22611740-9511740-9519199(Top 72%)11962(Top 79%)11962(Top 5616%)
20K12.43 mi3.11 mi18811-10511783-4311783-4319153(Top 72%)11950(Top 79%)11950(Top 5610%)
Half13.11 mi0.68 mi18957-14611840-5711840-5721013(Top 79%)12733(Top 84%)12733(Top 5978%)
25K15.53 mi2.42 mi18916+4111822+1811822+1818780(Top 71%)11754(Top 77%)11754(Top 5518%)
30K18.64 mi3.11 mi19067-15111869-4711869-4719543(Top 73%)12021(Top 79%)12021(Top 5644%)
20M20.00 mi1.36 mi19029+3811831+3811831+3818686(Top 70%)11541(Top 76%)11541(Top 5418%)
21M21.00 mi1.00 mi19216-18711903-7211903-7221216(Top 80%)12612(Top 83%)12612(Top 5921%)
35K21.75 mi0.75 mi1921611897+611897+618727(Top 70%)11478(Top 76%)11478(Top 5389%)
23M23.00 mi1.25 mi19261-4511912-1511912-1519769(Top 74%)11917(Top 79%)11917(Top 5595%)
24M24.00 mi1.00 mi19310-4911928-1611928-1619943(Top 75%)11977(Top 79%)11977(Top 5623%)
40K24.85 mi0.85 mi19536-22612005-7712005-7722835(Top 86%)13232(Top 87%)13232(Top 6212%)
25.2M25.20 mi0.35 mi19545-912004+112004+119192(Top 72%)11564(Top 76%)11564(Top 5429%)
Finish26.22 mi1.02 mi19609-6412022-1812022-1820772(Top 78%)12301(Top 81%)12301(Top 5775%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21story building
+97ft-345ft

Overall

19199

Males

11962

M70-74

11962

5K→10K

3.1 - 6.2 mi

Top 70%
×5story building
+79ft-138ft

Overall

18628

Males

11758

M70-74

11758

10K→15K

6.2 - 9.3 mi

Top 72%
×3story building
+67ft-78ft

Overall

19199

Males

11962

M70-74

11962

15K→20K

9.3 - 12.4 mi

Top 72%
×5story building
+106ft-86ft

Overall

19153

Males

11950

M70-74

11950

20K→Half

12.4 - 13.1 mi

Top 79%
×2story building
+19ft-37ft

Overall

21013

Males

12733

M70-74

12733

Half→25K

13.1 - 15.5 mi

Top 71%
×4story building
+66ft-88ft

Overall

18780

Males

11754

M70-74

11754

25K→30K

15.5 - 18.6 mi

Top 73%
×9story building
+181ft-148ft

Overall

19543

Males

12021

M70-74

12021

30K→20M

18.6 - 20.0 mi

Top 70%
×5story building
+64ft-50ft

Overall

18686

Males

11541

M70-74

11541

20M→21M

20.0 - 21.0 mi

Top 80%
×8story building
+106ft-24ft

Overall

21216

Males

12612

M70-74

12612

21M→35K

21.0 - 21.8 mi

Top 70%
×7story building
+17ft-86ft

Overall

18727

Males

11478

M70-74

11478

35K→23M

21.8 - 23.0 mi

Top 74%
×5story building
+23ft-63ft

Overall

19769

Males

11917

M70-74

11917

23M→24M

23.0 - 24.0 mi

Top 75%
×6story building
+12ft-82ft

Overall

19943

Males

11977

M70-74

11977

24M→40K

24.0 - 24.9 mi

Top 86%
×1story
+6ft-20ft

Overall

22835

Males

13232

M70-74

13232

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

19192

Males

11564

M70-74

11564

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2story building
+22ft-21ft

Overall

20772

Males

12301

M70-74

12301

Passing Analysis

Category:
Athletes Passed
1095
Passed By
2361
Net Change
-1266
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18343
5K → 10K262399-137#18343#18480
10K → 15K101327-226#18480#18706
15K → 20K132237-105#18706#18811
20K → Half4150-146#18811#18957
Half → 25K146105+41#18957#18916
25K → 30K118269-151#18916#19067
30K → 20M10163+38#19067#19029
20M → 21M30217-187#19029#19216
21M → 35K37370#19216#19216
35K → 23M63108-45#19216#19261
23M → 24M4493-49#19261#19310
24M → 40K11237-226#19310#19536
40K → 25.2M2029-9#19536#19545
25.2M → Finish2690-64#19545#19609
TOTALS10952361-1266
📊

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