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BOSTON MARATHON 2023

Juan Horiuchi

Bib: 5480•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M40-44)
#0 / 2241
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:21
Rank: #5342
Start → 5K
21:21 | 6:52/mi
10K· 6.21 mi
43:08
Rank: #6142 (-800)
5K → 10K
21:47 | 7:01/mi
15K· 9.32 mi
1:05:19
Rank: #6556 (-414)
10K → 15K
22:11 | 7:08/mi
20K· 12.43 mi
1:28:54
Rank: #7239 (-683)
15K → 20K
23:35 | 7:35/mi
Half· 13.11 mi
1:34:04
Rank: #7379 (-140)
20K → Half
5:10 | 7:34/mi
25K· 15.53 mi
1:54:01
Rank: #8369 (-990)
Half → 25K
19:57 | 8:14/mi
30K· 18.64 mi
2:22:58
Rank: #10519 (-2150)
25K → 30K
28:57 | 9:19/mi
20M
2:35:26
Rank: #11107 (-588)
30K → 20M
12:28 | 9:10/mi
21M
2:45:25
Rank: #11664 (-557)
20M → 21M
9:59 | 9:59/mi
35K· 21.75 mi
2:52:12
Rank: #11983 (-319)
21M → 35K
6:47 | 9:04/mi
23M
3:04:38
Rank: #12654 (-671)
35K → 23M
12:26 | 9:56/mi
24M
3:14:45
Rank: #13233 (-579)
23M → 24M
10:07 | 10:07/mi
40K· 24.85 mi
3:23:49
Rank: #13774 (-541)
24M → 40K
9:04 | 10:36/mi
25.2M
3:27:49
Rank: #13992 (-218)
40K → 25.2M
4:00 | 11:36/mi
Finish· 26.22 mi
3:38:31
Rank: #14561 (-569)
25.2M → Finish
10:42 | 10:30/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:04
Pace7:11 /mi
2nd Half
Distance13.11 mi
Time2:04:27
Pace9:30 /mi
📊Positive Split: 32.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:2821:216:5221:21
6:52
-
10K
6.21 mi10:46:1543:086:5621:47
7:01
+0:09
15K
9.32 mi11:08:261:05:197:0022:11
7:08
+0:07
20K
12.43 mi11:32:011:28:547:0923:35
7:35
+0:27
Half
13.11 mi11:37:111:34:047:115:10
7:34
-0:01
25K
15.53 mi11:57:081:54:017:2019:57
8:14
+0:40
30K
18.64 mi12:26:052:22:587:4028:57
9:19
+1:05
20M
20.00 mi12:38:332:35:267:4612:28
9:10
-0:09
21M
21.00 mi12:48:322:45:257:539:59
9:59
+0:49
35K
21.75 mi12:55:192:52:127:556:47
9:04
-0:55
23M
23.00 mi13:07:453:04:388:0212:26
9:56
+0:52
24M
24.00 mi13:17:523:14:458:0710:07
10:07
+0:11
40K
24.85 mi13:26:563:23:498:129:04
10:36
+0:29
25.2M
25.20 mi13:30:563:27:498:154:00
11:36
+1:00
Finish
26.22 mi13:41:383:38:318:2010:42
10:30
-1:06

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

6:52 /mi

Average Pace

8:20 /mi

Slowest Pace

11:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:54:01

52% of race

Time at Steady Pace

48:12

22% of race

Time at Slower Pace

56:18

26% of race

Average Pace: 8:20 /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 mi10:24:2821:216:5221:21
6:52
#5342
10K
6.21 mi10:46:1543:086:5621:47
7:01
#6142
15K
9.32 mi11:08:261:05:197:0022:11
7:08
#6556
20K
12.43 mi11:32:011:28:547:0923:35
7:35
#7239
Half
13.11 mi11:37:111:34:047:115:10
7:34
#7379
25K
15.53 mi11:57:081:54:017:2019:57
8:14
#8369
30K
18.64 mi12:26:052:22:587:4028:57
9:19
#10519
20M
20.00 mi12:38:332:35:267:4612:28
9:10
#11107
21M
21.00 mi12:48:322:45:257:539:59
9:59
#11664
35K
21.75 mi12:55:192:52:127:556:47
9:04
#11983
23M
23.00 mi13:07:453:04:388:0212:26
9:56
#12654
24M
24.00 mi13:17:523:14:458:0710:07
10:07
#13233
40K
24.85 mi13:26:563:23:498:129:04
10:36
#13774
25.2M
25.20 mi13:30:563:27:498:154:00
11:36
#13992
Finish
26.22 mi13:41:383:38:318:2010:42
10:30
#14561
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi5342494049407408(Top 28%)6538(Top 43%)6538(Top 292%)
10K6.21 mi3.10 mi6142-8005597-6575597-6576913(Top 26%)6174(Top 41%)6174(Top 276%)
15K9.32 mi3.11 mi6556-4145918-3215918-3217408(Top 28%)6538(Top 43%)6538(Top 292%)
20K12.43 mi3.11 mi7239-6836422-5046422-50410019(Top 38%)8087(Top 53%)8087(Top 361%)
Half13.11 mi0.68 mi7379-1406522-1006522-10010821(Top 41%)8547(Top 56%)8547(Top 381%)
25K15.53 mi2.42 mi8369-9907146-6247146-62414425(Top 54%)9940(Top 65%)9940(Top 444%)
30K18.64 mi3.11 mi10519-21508342-11968342-119618695(Top 70%)11644(Top 77%)11644(Top 520%)
20M20.00 mi1.36 mi11107-5888602-2608602-26017408(Top 65%)10985(Top 72%)10985(Top 490%)
21M21.00 mi1.00 mi11664-5578823-2218823-22117948(Top 67%)11194(Top 74%)11194(Top 500%)
35K21.75 mi0.75 mi11983-3198958-1358958-13518129(Top 68%)11192(Top 74%)11192(Top 499%)
23M23.00 mi1.25 mi12654-6719217-2599217-25919760(Top 74%)11908(Top 78%)11908(Top 531%)
24M24.00 mi1.00 mi13233-5799433-2169433-21621094(Top 79%)12463(Top 82%)12463(Top 556%)
40K24.85 mi0.85 mi13774-5419630-1979630-19721449(Top 81%)12551(Top 83%)12551(Top 560%)
25.2M25.20 mi0.35 mi13992-2189702-729702-7221720(Top 82%)12714(Top 84%)12714(Top 567%)
Finish26.22 mi1.02 mi14561-5699907-2059907-20522980(Top 86%)13320(Top 88%)13320(Top 594%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 28%
×21stories
+97ft-345ft

Overall

7408

Males

6538

M40-44

6538

5K→10K

3.1 - 6.2 mi

Top 26%
×5stories
+79ft-138ft

Overall

6913

Males

6174

M40-44

6174

10K→15K

6.2 - 9.3 mi

Top 28%
×3stories
+67ft-78ft

Overall

7408

Males

6538

M40-44

6538

15K→20K

9.3 - 12.4 mi

Top 38%
×5stories
+106ft-86ft

Overall

10019

Males

8087

M40-44

8087

20K→Half

12.4 - 13.1 mi

Top 41%
×2stories
+19ft-37ft

Overall

10821

Males

8547

M40-44

8547

Half→25K

13.1 - 15.5 mi

Top 54%
×4stories
+66ft-88ft

Overall

14425

Males

9940

M40-44

9940

25K→30K

15.5 - 18.6 mi

Top 70%
×9stories
+181ft-148ft

Overall

18695

Males

11644

M40-44

11644

30K→20M

18.6 - 20.0 mi

Top 65%
×5stories
+64ft-50ft

Overall

17408

Males

10985

M40-44

10985

20M→21M

20.0 - 21.0 mi

Top 67%
×8stories
+106ft-24ft

Overall

17948

Males

11194

M40-44

11194

21M→35K

21.0 - 21.8 mi

Top 68%
×7stories
+17ft-86ft

Overall

18129

Males

11192

M40-44

11192

35K→23M

21.8 - 23.0 mi

Top 74%
×5stories
+23ft-63ft

Overall

19760

Males

11908

M40-44

11908

23M→24M

23.0 - 24.0 mi

Top 79%
×6stories
+12ft-82ft

Overall

21094

Males

12463

M40-44

12463

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

21449

Males

12551

M40-44

12551

40K→25.2M

24.9 - 25.2 mi

Top 82%
×1story
+13ft-16ft

Overall

21720

Males

12714

M40-44

12714

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2stories
+22ft-21ft

Overall

22980

Males

13320

M40-44

13320

Passing Analysis

Category:
Athletes Passed
135*
Passed By
9352
Net Change
-9219
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5342
5K → 10K19819-800#5342#6142
10K → 15K30444-414#6142#6556
15K → 20K11694-683#6556#7239
20K → Half4144-140#7239#7379
Half → 25K5995-990#7379#8369
25K → 30K72155-2150#8369#10519
30K → 20M16*604-588#10519#11107
20M → 21M10567-557#11107#11664
21M → 35K7326-319#11664#11983
35K → 23M5676-671#11983#12654
23M → 24M9588-579#12654#13233
24M → 40K5546-541#13233#13774
40K → 25.2M2220-218#13774#13992
25.2M → Finish5574-569#13992#14561
TOTALS135*9352-9219

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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