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BOSTON MARATHON 2023

Takashi Akera

Bib: 8671•M

MD

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 11%
Gender (Male)
#0 / 15176
Top 18%
Division (M18-39)
#0 / 5285
Top 38%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:24
Rank: #1253
Start → 5K
19:24 | 6:15/mi
10K· 6.21 mi
38:57
Rank: #1447 (-194)
5K → 10K
19:33 | 6:18/mi
15K· 9.32 mi
59:18
Rank: #1840 (-393)
10K → 15K
20:21 | 6:33/mi
20K· 12.43 mi
1:20:10
Rank: #2199 (-359)
15K → 20K
20:52 | 6:43/mi
Half· 13.11 mi
1:24:42
Rank: #2258 (-59)
20K → Half
4:32 | 6:39/mi
25K· 15.53 mi
1:41:03
Rank: #2436 (-178)
Half → 25K
16:21 | 6:45/mi
30K· 18.64 mi
2:02:40
Rank: #2640 (-204)
25K → 30K
21:37 | 6:57/mi
20M
2:12:18
Rank: #2722 (-82)
30K → 20M
9:38 | 7:05/mi
21M
2:19:37
Rank: #2736 (-14)
20M → 21M
7:19 | 7:19/mi
35K· 21.75 mi
2:24:47
Rank: #2789 (-53)
21M → 35K
5:10 | 6:54/mi
23M
2:33:31
Rank: #2819 (-30)
35K → 23M
8:44 | 6:59/mi
24M
2:40:19
Rank: #2839 (-20)
23M → 24M
6:48 | 6:48/mi
40K· 24.85 mi
2:46:16
Rank: #2848 (-9)
24M → 40K
5:57 | 6:58/mi
25.2M
2:48:51
Rank: #2848
40K → 25.2M
2:35 | 7:29/mi
Finish· 26.22 mi
2:55:25
Rank: #2802 (+46)
25.2M → Finish
6:34 | 6:27/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:42
Pace6:28 /mi
2nd Half
Distance13.11 mi
Time1:30:43
Pace6:55 /mi
📊Positive Split: 7.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:44:3719:246:1519:24
6:15
-
10K
6.21 mi11:04:1038:576:1619:33
6:18
+0:03
15K
9.32 mi11:24:3159:186:2220:21
6:33
+0:15
20K
12.43 mi11:45:231:20:106:2720:52
6:43
+0:10
Half
13.11 mi11:49:551:24:426:284:32
6:39
-0:04
25K
15.53 mi12:06:161:41:036:3016:21
6:45
+0:06
30K
18.64 mi12:27:532:02:406:3521:37
6:57
+0:12
20M
20.00 mi12:37:312:12:186:379:38
7:05
+0:08
21M
21.00 mi12:44:502:19:376:397:19
7:19
+0:14
35K
21.75 mi12:50:002:24:476:395:10
6:54
-0:25
23M
23.00 mi12:58:442:33:316:408:44
6:59
+0:05
24M
24.00 mi13:05:322:40:196:416:48
6:48
-0:11
40K
24.85 mi13:11:292:46:166:415:57
6:58
+0:10
25.2M
25.20 mi13:14:042:48:516:422:35
7:29
+0:31
Finish
26.22 mi13:20:382:55:256:426:34
6:27
-1:02

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

6:15 /mi

Average Pace

6:42 /mi

Slowest Pace

7:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:54:25

65% of race

Time at Steady Pace

58:25

33% of race

Time at Slower Pace

2:35

1% of race

Average Pace: 6:41 /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 mi10:44:3719:246:1519:24
6:15
#1253
10K
6.21 mi11:04:1038:576:1619:33
6:18
#1447
15K
9.32 mi11:24:3159:186:2220:21
6:33
#1840
20K
12.43 mi11:45:231:20:106:2720:52
6:43
#2199
Half
13.11 mi11:49:551:24:426:284:32
6:39
#2258
25K
15.53 mi12:06:161:41:036:3016:21
6:45
#2436
30K
18.64 mi12:27:532:02:406:3521:37
6:57
#2640
20M
20.00 mi12:37:312:12:186:379:38
7:05
#2722
21M
21.00 mi12:44:502:19:376:397:19
7:19
#2736
35K
21.75 mi12:50:002:24:476:395:10
6:54
#2789
23M
23.00 mi12:58:442:33:316:408:44
6:59
#2819
24M
24.00 mi13:05:322:40:196:416:48
6:48
#2839
40K
24.85 mi13:11:292:46:166:415:57
6:58
#2848
25.2M
25.20 mi13:14:042:48:516:422:35
7:29
#2848
Finish
26.22 mi13:20:382:55:256:426:34
6:27
#2802
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1253118711872927(Top 11%)2798(Top 18%)2798(Top 53%)
10K6.21 mi3.10 mi1447-1941380-1931380-1931753(Top 7%)1677(Top 11%)1677(Top 32%)
15K9.32 mi3.11 mi1840-3931760-3801760-3802927(Top 11%)2798(Top 18%)2798(Top 53%)
20K12.43 mi3.11 mi2199-3592107-3472107-3473683(Top 14%)3482(Top 23%)3482(Top 66%)
Half13.11 mi0.68 mi2258-592164-572164-573723(Top 14%)3507(Top 23%)3507(Top 66%)
25K15.53 mi2.42 mi2436-1782335-1712335-1713672(Top 14%)3457(Top 23%)3457(Top 65%)
30K18.64 mi3.11 mi2640-2042521-1862521-1864050(Top 15%)3780(Top 25%)3780(Top 72%)
20M20.00 mi1.36 mi2722-822601-802601-804518(Top 17%)4143(Top 27%)4143(Top 78%)
21M21.00 mi1.00 mi2736-142614-132614-133658(Top 14%)3389(Top 22%)3389(Top 64%)
35K21.75 mi0.75 mi2789-532666-522666-524751(Top 18%)4287(Top 28%)4287(Top 81%)
23M23.00 mi1.25 mi2819-302686-202686-203636(Top 14%)3360(Top 22%)3360(Top 64%)
24M24.00 mi1.00 mi2839-202699-132699-133624(Top 14%)3323(Top 22%)3323(Top 63%)
40K24.85 mi0.85 mi2848-92708-92708-93596(Top 14%)3260(Top 21%)3260(Top 62%)
25.2M25.20 mi0.35 mi28482706+22706+23782(Top 14%)3372(Top 22%)3372(Top 64%)
Finish26.22 mi1.02 mi2802+462661+452661+452218(Top 8%)2058(Top 14%)2058(Top 39%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 11%
×21stories
+97ft-345ft

Overall

2927

Males

2798

M18-39

2798

5K→10K

3.1 - 6.2 mi

Top 7%
×5stories
+79ft-138ft

Overall

1753

Males

1677

M18-39

1677

10K→15K

6.2 - 9.3 mi

Top 11%
×3stories
+67ft-78ft

Overall

2927

Males

2798

M18-39

2798

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

3683

Males

3482

M18-39

3482

20K→Half

12.4 - 13.1 mi

Top 14%
×2stories
+19ft-37ft

Overall

3723

Males

3507

M18-39

3507

Half→25K

13.1 - 15.5 mi

Top 14%
×4stories
+66ft-88ft

Overall

3672

Males

3457

M18-39

3457

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

4050

Males

3780

M18-39

3780

30K→20M

18.6 - 20.0 mi

Top 17%
×5stories
+64ft-50ft

Overall

4518

Males

4143

M18-39

4143

20M→21M

20.0 - 21.0 mi

Top 14%
×8stories
+106ft-24ft

Overall

3658

Males

3389

M18-39

3389

21M→35K

21.0 - 21.8 mi

Top 18%
×7stories
+17ft-86ft

Overall

4751

Males

4287

M18-39

4287

35K→23M

21.8 - 23.0 mi

Top 14%
×5stories
+23ft-63ft

Overall

3636

Males

3360

M18-39

3360

23M→24M

23.0 - 24.0 mi

Top 14%
×6stories
+12ft-82ft

Overall

3624

Males

3323

M18-39

3323

24M→40K

24.0 - 24.9 mi

Top 14%
×1story
+6ft-20ft

Overall

3596

Males

3260

M18-39

3260

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

3782

Males

3372

M18-39

3372

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2stories
+22ft-21ft

Overall

2218

Males

2058

M18-39

2058

Passing Analysis

Category:
Athletes Passed
329
Passed By
1878
Net Change
-1549
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1253
5K → 10K23217-194#1253#1447
10K → 15K5398-393#1447#1840
15K → 20K12371-359#1840#2199
20K → Half261-59#2199#2258
Half → 25K15193-178#2258#2436
25K → 30K18222-204#2436#2640
30K → 20M19101-82#2640#2722
20M → 21M3650-14#2722#2736
21M → 35K1164-53#2736#2789
35K → 23M4070-30#2789#2819
23M → 24M3252-20#2819#2839
24M → 40K3948-9#2839#2848
40K → 25.2M16160#2848#2848
25.2M → Finish6115+46#2848#2802
TOTALS3291878-1549
📊

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