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BOSTON MARATHON 2023

Akito Amagai

Bib: 1916•M

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 23%
Gender (Male)
#0 / 15176
Top 36%
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:28
Rank: #2791
Start → 5K
20:28 | 6:35/mi
10K· 6.21 mi
41:19
Rank: #3535 (-744)
5K → 10K
20:51 | 6:43/mi
15K· 9.32 mi
1:01:49
Rank: #3434 (+101)
10K → 15K
20:30 | 6:36/mi
20K· 12.43 mi
1:22:40
Rank: #3466 (-32)
15K → 20K
20:51 | 6:43/mi
Half· 13.11 mi
1:27:13
Rank: #3485 (-19)
20K → Half
4:33 | 6:40/mi
25K· 15.53 mi
1:44:05
Rank: #3775 (-290)
Half → 25K
16:52 | 6:57/mi
30K· 18.64 mi
2:07:50
Rank: #4815 (-1040)
25K → 30K
23:45 | 7:39/mi
20M
2:18:50
Rank: #5302 (-487)
30K → 20M
11:00 | 8:06/mi
21M
2:27:04
Rank: #5439 (-137)
20M → 21M
8:14 | 8:14/mi
35K· 21.75 mi
2:32:39
Rank: #5498 (-59)
21M → 35K
5:35 | 7:28/mi
23M
2:42:58
Rank: #5728 (-230)
35K → 23M
10:19 | 8:14/mi
24M
2:51:13
Rank: #5925 (-197)
23M → 24M
8:15 | 8:15/mi
40K· 24.85 mi
2:57:54
Rank: #5978 (-53)
24M → 40K
6:41 | 7:49/mi
25.2M
3:00:47
Rank: #5993 (-15)
40K → 25.2M
2:53 | 8:22/mi
Finish· 26.22 mi
3:08:35
Rank: #6074 (-81)
25.2M → Finish
7:48 | 7:39/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:13
Pace6:39 /mi
2nd Half
Distance13.11 mi
Time1:41:22
Pace7:44 /mi
📊Positive Split: 16.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:4120:286:3520:28
6:35
-
10K
6.21 mi10:41:3241:196:3920:51
6:43
+0:08
15K
9.32 mi11:02:021:01:496:3820:30
6:36
-0:07
20K
12.43 mi11:22:531:22:406:3920:51
6:43
+0:07
Half
13.11 mi11:27:261:27:136:394:33
6:40
-0:03
25K
15.53 mi11:44:181:44:056:4216:52
6:57
+0:17
30K
18.64 mi12:08:032:07:506:5123:45
7:39
+0:42
20M
20.00 mi12:19:032:18:506:5611:00
8:06
+0:27
21M
21.00 mi12:27:172:27:047:008:14
8:14
+0:08
35K
21.75 mi12:32:522:32:397:015:35
7:28
-0:46
23M
23.00 mi12:43:112:42:587:0510:19
8:14
+0:46
24M
24.00 mi12:51:262:51:137:088:15
8:15
+0:01
40K
24.85 mi12:58:072:57:547:096:41
7:49
-0:26
25.2M
25.20 mi13:01:003:00:477:102:53
8:22
+0:33
Finish
26.22 mi13:08:483:08:357:127:48
7:39
-0:43

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

6:35 /mi

Average Pace

7:12 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:05

55% of race

Time at Steady Pace

43:49

23% of race

Time at Slower Pace

40:41

22% of race

Average Pace: 7:12 /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 mi10:20:4120:286:3520:28
6:35
#2791
10K
6.21 mi10:41:3241:196:3920:51
6:43
#3535
15K
9.32 mi11:02:021:01:496:3820:30
6:36
#3434
20K
12.43 mi11:22:531:22:406:3920:51
6:43
#3466
Half
13.11 mi11:27:261:27:136:394:33
6:40
#3485
25K
15.53 mi11:44:181:44:056:4216:52
6:57
#3775
30K
18.64 mi12:08:032:07:506:5123:45
7:39
#4815
20M
20.00 mi12:19:032:18:506:5611:00
8:06
#5302
21M
21.00 mi12:27:172:27:047:008:14
8:14
#5439
35K
21.75 mi12:32:522:32:397:015:35
7:28
#5498
23M
23.00 mi12:43:112:42:587:0510:19
8:14
#5728
24M
24.00 mi12:51:262:51:137:088:15
8:15
#5925
40K
24.85 mi12:58:072:57:547:096:41
7:49
#5978
25.2M
25.20 mi13:01:003:00:477:102:53
8:22
#5993
Finish
26.22 mi13:08:483:08:357:127:48
7:39
#6074
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2791265626563293(Top 12%)3128(Top 21%)3128(Top 59%)
10K6.21 mi3.10 mi3535-7443338-6823338-6824456(Top 17%)4167(Top 27%)4167(Top 79%)
15K9.32 mi3.11 mi3434+1013253+853253+853293(Top 12%)3128(Top 21%)3128(Top 59%)
20K12.43 mi3.11 mi3466-323285-323285-323675(Top 14%)3479(Top 23%)3479(Top 66%)
Half13.11 mi0.68 mi3485-193301-163301-164118(Top 15%)3870(Top 26%)3870(Top 73%)
25K15.53 mi2.42 mi3775-2903566-2653566-2655337(Top 20%)4919(Top 32%)4919(Top 93%)
30K18.64 mi3.11 mi4815-10404481-9154481-9158246(Top 31%)6830(Top 45%)6830(Top 129%)
20M20.00 mi1.36 mi5302-4874895-4144895-41410940(Top 41%)8212(Top 54%)8212(Top 155%)
21M21.00 mi1.00 mi5439-1374999-1044999-1048761(Top 33%)6916(Top 46%)6916(Top 131%)
35K21.75 mi0.75 mi5498-595046-475046-478186(Top 31%)6587(Top 43%)6587(Top 125%)
23M23.00 mi1.25 mi5728-2305211-1655211-16511428(Top 43%)8175(Top 54%)8175(Top 155%)
24M24.00 mi1.00 mi5925-1975352-1415352-14112893(Top 48%)8785(Top 58%)8785(Top 166%)
40K24.85 mi0.85 mi5978-535381-295381-298743(Top 33%)6667(Top 44%)6667(Top 126%)
25.2M25.20 mi0.35 mi5993-155388-75388-78575(Top 32%)6476(Top 43%)6476(Top 123%)
Finish26.22 mi1.02 mi6074-815438-505438-509618(Top 36%)7069(Top 47%)7069(Top 134%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21stories
+97ft-345ft

Overall

3293

Males

3128

M18-39

3128

5K→10K

3.1 - 6.2 mi

Top 17%
×5stories
+79ft-138ft

Overall

4456

Males

4167

M18-39

4167

10K→15K

6.2 - 9.3 mi

Top 12%
×3stories
+67ft-78ft

Overall

3293

Males

3128

M18-39

3128

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

3675

Males

3479

M18-39

3479

20K→Half

12.4 - 13.1 mi

Top 15%
×2stories
+19ft-37ft

Overall

4118

Males

3870

M18-39

3870

Half→25K

13.1 - 15.5 mi

Top 20%
×4stories
+66ft-88ft

Overall

5337

Males

4919

M18-39

4919

25K→30K

15.5 - 18.6 mi

Top 31%
×9stories
+181ft-148ft

Overall

8246

Males

6830

M18-39

6830

30K→20M

18.6 - 20.0 mi

Top 41%
×5stories
+64ft-50ft

Overall

10940

Males

8212

M18-39

8212

20M→21M

20.0 - 21.0 mi

Top 33%
×8stories
+106ft-24ft

Overall

8761

Males

6916

M18-39

6916

21M→35K

21.0 - 21.8 mi

Top 31%
×7stories
+17ft-86ft

Overall

8186

Males

6587

M18-39

6587

35K→23M

21.8 - 23.0 mi

Top 43%
×5stories
+23ft-63ft

Overall

11428

Males

8175

M18-39

8175

23M→24M

23.0 - 24.0 mi

Top 48%
×6stories
+12ft-82ft

Overall

12893

Males

8785

M18-39

8785

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

8743

Males

6667

M18-39

6667

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

8575

Males

6476

M18-39

6476

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2stories
+22ft-21ft

Overall

9618

Males

7069

M18-39

7069

Passing Analysis

Category:
Athletes Passed
456
Passed By
3739
Net Change
-3283
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2791
5K → 10K17761-744#2791#3535
10K → 15K15756+101#3535#3434
15K → 20K6698-32#3434#3466
20K → Half1534-19#3466#3485
Half → 25K26316-290#3485#3775
25K → 30K61046-1040#3775#4815
30K → 20M9496-487#4815#5302
20M → 21M25162-137#5302#5439
21M → 35K1877-59#5439#5498
35K → 23M26256-230#5498#5728
23M → 24M13210-197#5728#5925
24M → 40K3689-53#5925#5978
40K → 25.2M1530-15#5978#5993
25.2M → Finish27108-81#5993#6074
TOTALS4563739-3283
📊

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