Akira Nakajima

Bib: 4520M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 10%
Gender (Male)
#0 / 16105
Top 17%
Masters (Masters Men)
#0 / 10463
Top 6%
Division (M45-49)
#0 / 2386
Top 6%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:42
Rank: #2692
Start5K
19:42 | 6:20/mi
10K· 6.21 mi
39:12
Rank: #2471 (+221)
5K10K
19:30 | 6:17/mi
15K· 9.32 mi
58:41
Rank: #2344 (+127)
10K15K
19:29 | 6:16/mi
20K· 12.43 mi
1:18:20
Rank: #2277 (+67)
15K20K
19:39 | 6:19/mi
Half· 13.11 mi
1:22:34
Rank: #2262 (+15)
20KHalf
4:14 | 6:12/mi
25K· 15.53 mi
1:37:47
Rank: #2148 (+114)
Half25K
15:13 | 6:17/mi
30K· 18.64 mi
1:58:15
Rank: #2154 (-6)
25K30K
20:28 | 6:35/mi
20M
2:07:29
Rank: #2194 (-40)
30K20M
9:14 | 6:48/mi
21M
2:14:54
Rank: #2260 (-66)
20M21M
7:25 | 7:25/mi
35K· 21.75 mi
2:19:56
Rank: #2296 (-36)
21M35K
5:02 | 6:44/mi
23M
2:28:57
Rank: #2384 (-88)
35K23M
9:01 | 7:12/mi
24M
2:36:11
Rank: #2499 (-115)
23M24M
7:14 | 7:14/mi
40K· 24.85 mi
2:42:43
Rank: #2642 (-143)
24M40K
6:32 | 7:38/mi
25.2M
2:45:43
Rank: #2710 (-68)
40K25.2M
3:00 | 8:42/mi
Finish· 26.22 mi
2:53:47
Rank: #2966 (-256)
25.2MFinish
8:04 | 7:55/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:34
Pace6:18 /mi
2nd Half
Distance13.11 mi
Time1:31:13
Pace6:57 /mi
📊Positive Split: 10.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:4719:426:2019:42
6:20
-
10K
6.21 mi10:42:1739:126:1919:30
6:17
-0:03
15K
9.32 mi11:01:4658:416:1819:29
6:16
-0:01
20K
12.43 mi11:21:251:18:206:1819:39
6:19
+0:03
Half
13.11 mi11:25:391:22:346:184:14
6:12
-0:07
25K
15.53 mi11:40:521:37:476:1815:13
6:17
+0:05
30K
18.64 mi12:01:201:58:156:2120:28
6:35
+0:18
20M
20.00 mi12:10:342:07:296:229:14
6:48
+0:13
21M
21.00 mi12:17:592:14:546:257:25
7:25
+0:37
35K
21.75 mi12:23:012:19:566:265:02
6:44
-0:41
23M
23.00 mi12:32:022:28:576:299:01
7:12
+0:28
24M
24.00 mi12:39:162:36:116:307:14
7:14
+0:02
40K
24.85 mi12:45:482:42:436:336:32
7:38
+0:24
25.2M
25.20 mi12:48:482:45:436:353:00
8:42
+1:04
Finish
26.22 mi12:56:522:53:476:388:04
7:55
-0:47

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

6:12 /mi

Average Pace

6:38 /mi

Slowest Pace

8:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:37:47

56% of race

Time at Steady Pace

34:44

20% of race

Time at Slower Pace

41:16

24% of race

Average Pace: 6:38 /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 mi10:22:4719:426:2019:42
6:20
#2692
10K
6.21 mi10:42:1739:126:1919:30
6:17
#2471
15K
9.32 mi11:01:4658:416:1819:29
6:16
#2344
20K
12.43 mi11:21:251:18:206:1819:39
6:19
#2277
Half
13.11 mi11:25:391:22:346:184:14
6:12
#2262
25K
15.53 mi11:40:521:37:476:1815:13
6:17
#2148
30K
18.64 mi12:01:201:58:156:2120:28
6:35
#2154
20M
20.00 mi12:10:342:07:296:229:14
6:48
#2194
21M
21.00 mi12:17:592:14:546:257:25
7:25
#2260
35K
21.75 mi12:23:012:19:566:265:02
6:44
#2296
23M
23.00 mi12:32:022:28:576:299:01
7:12
#2384
24M
24.00 mi12:39:162:36:116:307:14
7:14
#2499
40K
24.85 mi12:45:482:42:436:336:32
7:38
#2642
25.2M
25.20 mi12:48:482:45:436:353:00
8:42
#2710
Finish
26.22 mi12:56:522:53:476:388:04
7:55
#2966
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi2692256625662204(Top 8%)2100(Top 13%)2100(Top 88%)
10K6.21 mi3.10 mi2471+2212356+2102356+2102265(Top 8%)2166(Top 13%)2166(Top 91%)
15K9.32 mi3.11 mi2344+1272239+1172239+1172204(Top 8%)2100(Top 13%)2100(Top 88%)
20K12.43 mi3.11 mi2277+672175+642175+642118(Top 7%)2019(Top 13%)2019(Top 85%)
Half13.11 mi0.68 mi2262+152161+142161+142006(Top 7%)1915(Top 12%)1915(Top 80%)
25K15.53 mi2.42 mi2148+1142049+1122049+1121761(Top 6%)1673(Top 10%)1673(Top 70%)
30K18.64 mi3.11 mi2154-62052-32052-32361(Top 8%)2238(Top 14%)2238(Top 94%)
20M20.00 mi1.36 mi2194-402092-402092-402886(Top 10%)2695(Top 17%)2695(Top 113%)
21M21.00 mi1.00 mi2260-662156-642156-644157(Top 15%)3736(Top 23%)3736(Top 157%)
35K21.75 mi0.75 mi2296-362188-322188-323636(Top 13%)3283(Top 20%)3283(Top 138%)
23M23.00 mi1.25 mi2384-882271-832271-834844(Top 17%)4195(Top 26%)4195(Top 176%)
24M24.00 mi1.00 mi2499-1152374-1032374-1035976(Top 21%)4890(Top 30%)4890(Top 205%)
40K24.85 mi0.85 mi2642-1432504-1302504-1307640(Top 27%)5778(Top 36%)5778(Top 242%)
25.2M25.20 mi0.35 mi2710-682566-622566-629876(Top 35%)6852(Top 43%)6852(Top 287%)
Finish26.22 mi1.02 mi2966-2562797-2312797-23112229(Top 43%)8132(Top 50%)8132(Top 341%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

2204

Males

2100

M45-49

2100

5K→10K

3.1 - 6.2 mi

Top 8%
×5stories
+79ft-138ft

Overall

2265

Males

2166

M45-49

2166

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

2204

Males

2100

M45-49

2100

15K→20K

9.3 - 12.4 mi

Top 7%
×5stories
+106ft-86ft

Overall

2118

Males

2019

M45-49

2019

20K→Half

12.4 - 13.1 mi

Top 7%
×2stories
+19ft-37ft

Overall

2006

Males

1915

M45-49

1915

Half→25K

13.1 - 15.5 mi

Top 6%
×4stories
+66ft-88ft

Overall

1761

Males

1673

M45-49

1673

25K→30K

15.5 - 18.6 mi

Top 8%
×9stories
+181ft-148ft

Overall

2361

Males

2238

M45-49

2238

30K→20M

18.6 - 20.0 mi

Top 10%
×5stories
+64ft-50ft

Overall

2886

Males

2695

M45-49

2695

20M→21M

20.0 - 21.0 mi

Top 15%
×8stories
+106ft-24ft

Overall

4157

Males

3736

M45-49

3736

21M→35K

21.0 - 21.8 mi

Top 13%
×7stories
+17ft-86ft

Overall

3636

Males

3283

M45-49

3283

35K→23M

21.8 - 23.0 mi

Top 17%
×5stories
+23ft-63ft

Overall

4844

Males

4195

M45-49

4195

23M→24M

23.0 - 24.0 mi

Top 21%
×6stories
+12ft-82ft

Overall

5976

Males

4890

M45-49

4890

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

7640

Males

5778

M45-49

5778

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9876

Males

6852

M45-49

6852

25.2M→Finish

25.2 - 26.2 mi

Top 43%
×2stories
+22ft-21ft

Overall

12229

Males

8132

M45-49

8132

Passing Analysis

Category:
Athletes Passed
853
Passed By
1127
Net Change
-274
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2692
5K10K24928+221#2692#2471
10K15K15730+127#2471#2344
15K20K10639+67#2344#2277
20KHalf205+15#2277#2262
Half25K1184+114#2262#2148
25K30K7379-6#2148#2154
30K20M2767-40#2154#2194
20M21M2894-66#2194#2260
21M35K1450-36#2260#2296
35K23M26114-88#2296#2384
23M24M20135-115#2384#2499
24M40K10153-143#2499#2642
40K25.2M371-68#2642#2710
25.2MFinish2258-256#2710#2966
TOTALS8531127-274
📊

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