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BOSTON MARATHON 2023

Akihiro Tahara

Bib: 29600•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M60-64)
#0 / 1110
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
35:14
Rank: #26081
Start → 5K
35:14 | 11:20/mi
10K· 6.21 mi
1:11:31
Rank: #26101 (-20)
5K → 10K
36:17 | 11:41/mi
15K· 9.32 mi
1:48:36
Rank: #26087 (+14)
10K → 15K
37:05 | 11:56/mi
20K· 12.43 mi
2:30:38
Rank: #26212 (-125)
15K → 20K
42:02 | 13:32/mi
Half· 13.11 mi
2:39:24
Rank: #26228 (-16)
20K → Half
8:46 | 12:51/mi
25K· 15.53 mi
3:12:40
Rank: #26251 (-23)
Half → 25K
33:16 | 13:43/mi
30K· 18.64 mi
3:56:25
Rank: #26236 (+15)
25K → 30K
43:45 | 14:05/mi
20M
4:16:11
Rank: #26231 (+5)
30K → 20M
19:46 | 14:33/mi
21M
4:31:40
Rank: #26234 (-3)
20M → 21M
15:29 | 15:29/mi
35K· 21.75 mi
4:42:20
Rank: #26239 (-5)
21M → 35K
10:40 | 14:15/mi
23M
5:00:39
Rank: #26246 (-7)
35K → 23M
18:19 | 14:38/mi
24M
5:14:56
Rank: #26265 (-19)
23M → 24M
14:17 | 14:17/mi
40K· 24.85 mi
5:27:19
Rank: #26263 (+2)
24M → 40K
12:23 | 14:29/mi
25.2M
5:32:45
Rank: #26272 (-9)
40K → 25.2M
5:26 | 15:45/mi
Finish· 26.22 mi
5:47:07
Rank: #26292 (-20)
25.2M → Finish
14:22 | 14:06/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:39:24
Pace12:10 /mi
2nd Half
Distance13.11 mi
Time3:07:43
Pace14:19 /mi
📊Positive Split: 17.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:2035:1411:2035:14
11:20
-
10K
6.21 mi12:29:371:11:3111:3136:17
11:41
+0:21
15K
9.32 mi13:06:421:48:3611:3937:05
11:56
+0:15
20K
12.43 mi13:48:442:30:3812:0742:02
13:32
+1:36
Half
13.11 mi13:57:302:39:2412:108:46
12:51
-0:41
25K
15.53 mi14:30:463:12:4012:2433:16
13:43
+0:52
30K
18.64 mi15:14:313:56:2512:4143:45
14:05
+0:22
20M
20.00 mi15:34:174:16:1112:4919:46
14:33
+0:28
21M
21.00 mi15:49:464:31:4012:5615:29
15:29
+0:56
35K
21.75 mi16:00:264:42:2012:5910:40
14:15
-1:14
23M
23.00 mi16:18:455:00:3913:0418:19
14:38
+0:23
24M
24.00 mi16:33:025:14:5613:0714:17
14:17
-0:21
40K
24.85 mi16:45:255:27:1913:1012:23
14:29
+0:12
25.2M
25.20 mi16:50:515:32:4513:125:26
15:45
+1:16
Finish
26.22 mi17:05:135:47:0713:1514:22
14:06
-1:39

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

11:20 /mi

Average Pace

13:15 /mi

Slowest Pace

15:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:22

34% of race

Time at Steady Pace

3:28:50

60% of race

Time at Slower Pace

20:55

6% of race

Average Pace: 13:14 /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 mi11:53:2035:1411:2035:14
11:20
#26081
10K
6.21 mi12:29:371:11:3111:3136:17
11:41
#26101
15K
9.32 mi13:06:421:48:3611:3937:05
11:56
#26087
20K
12.43 mi13:48:442:30:3812:0742:02
13:32
#26212
Half
13.11 mi13:57:302:39:2412:108:46
12:51
#26228
25K
15.53 mi14:30:463:12:4012:2433:16
13:43
#26251
30K
18.64 mi15:14:313:56:2512:4143:45
14:05
#26236
20M
20.00 mi15:34:174:16:1112:4919:46
14:33
#26231
21M
21.00 mi15:49:464:31:4012:5615:29
15:29
#26234
35K
21.75 mi16:00:264:42:2012:5910:40
14:15
#26239
23M
23.00 mi16:18:455:00:3913:0418:19
14:38
#26246
24M
24.00 mi16:33:025:14:5613:0714:17
14:17
#26265
40K
24.85 mi16:45:255:27:1913:1012:23
14:29
#26263
25.2M
25.20 mi16:50:515:32:4513:125:26
15:45
#26272
Finish
26.22 mi17:05:135:47:0713:1514:22
14:06
#26292
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi26081149621496226013(Top 98%)14944(Top 98%)14944(Top 1346%)
10K6.21 mi3.10 mi26101-2014972-1014972-1026092(Top 98%)14968(Top 99%)14968(Top 1348%)
15K9.32 mi3.11 mi26087+14149721497226013(Top 98%)14944(Top 98%)14944(Top 1346%)
20K12.43 mi3.11 mi26212-12515016-4415016-4426422(Top 99%)15090(Top 99%)15090(Top 1359%)
Half13.11 mi0.68 mi26228-1615023-715023-726303(Top 99%)15038(Top 99%)15038(Top 1355%)
25K15.53 mi2.42 mi26251-2315036-1315036-1326225(Top 99%)15000(Top 99%)15000(Top 1351%)
30K18.64 mi3.11 mi26236+1515026+1015026+1026066(Top 98%)14911(Top 98%)14911(Top 1343%)
20M20.00 mi1.36 mi26231+515015+1115015+1126123(Top 98%)14913(Top 98%)14913(Top 1344%)
21M21.00 mi1.00 mi26234-315012+315012+326005(Top 98%)14866(Top 98%)14866(Top 1339%)
35K21.75 mi0.75 mi26239-515010+215010+226214(Top 98%)14959(Top 99%)14959(Top 1348%)
23M23.00 mi1.25 mi26246-715011-115011-126169(Top 98%)14922(Top 98%)14922(Top 1344%)
24M24.00 mi1.00 mi26265-1915017-615017-626182(Top 98%)14917(Top 98%)14917(Top 1344%)
40K24.85 mi0.85 mi26263+215019-215019-225943(Top 97%)14773(Top 97%)14773(Top 1331%)
25.2M25.20 mi0.35 mi26272-915020-115020-126035(Top 98%)14833(Top 98%)14833(Top 1336%)
Finish26.22 mi1.02 mi26292-2015030-1015030-1026369(Top 99%)15011(Top 99%)15011(Top 1352%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 98%
×21stories
+97ft-345ft

Overall

26013

Males

14944

M60-64

14944

5K→10K

3.1 - 6.2 mi

Top 98%
×5stories
+79ft-138ft

Overall

26092

Males

14968

M60-64

14968

10K→15K

6.2 - 9.3 mi

Top 98%
×3stories
+67ft-78ft

Overall

26013

Males

14944

M60-64

14944

15K→20K

9.3 - 12.4 mi

Top 99%
×5stories
+106ft-86ft

Overall

26422

Males

15090

M60-64

15090

20K→Half

12.4 - 13.1 mi

Top 99%
×2stories
+19ft-37ft

Overall

26303

Males

15038

M60-64

15038

Half→25K

13.1 - 15.5 mi

Top 99%
×4stories
+66ft-88ft

Overall

26225

Males

15000

M60-64

15000

25K→30K

15.5 - 18.6 mi

Top 98%
×9stories
+181ft-148ft

Overall

26066

Males

14911

M60-64

14911

30K→20M

18.6 - 20.0 mi

Top 98%
×5stories
+64ft-50ft

Overall

26123

Males

14913

M60-64

14913

20M→21M

20.0 - 21.0 mi

Top 98%
×8stories
+106ft-24ft

Overall

26005

Males

14866

M60-64

14866

21M→35K

21.0 - 21.8 mi

Top 98%
×7stories
+17ft-86ft

Overall

26214

Males

14959

M60-64

14959

35K→23M

21.8 - 23.0 mi

Top 98%
×5stories
+23ft-63ft

Overall

26169

Males

14922

M60-64

14922

23M→24M

23.0 - 24.0 mi

Top 98%
×6stories
+12ft-82ft

Overall

26182

Males

14917

M60-64

14917

24M→40K

24.0 - 24.9 mi

Top 97%
×1story
+6ft-20ft

Overall

25943

Males

14773

M60-64

14773

40K→25.2M

24.9 - 25.2 mi

Top 98%
×1story
+13ft-16ft

Overall

26035

Males

14833

M60-64

14833

25.2M→Finish

25.2 - 26.2 mi

Top 99%
×2stories
+22ft-21ft

Overall

26369

Males

15011

M60-64

15011

Passing Analysis

Category:
Athletes Passed
297
Passed By
508
Net Change
-211
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26081
5K → 10K7292-20#26081#26101
10K → 15K6551+14#26101#26087
15K → 20K11136-125#26087#26212
20K → Half218-16#26212#26228
Half → 25K1841-23#26228#26251
25K → 30K4328+15#26251#26236
30K → 20M2621+5#26236#26231
20M → 21M1417-3#26231#26234
21M → 35K1520-5#26234#26239
35K → 23M1118-7#26239#26246
23M → 24M423-19#26246#26265
24M → 40K119+2#26265#26263
40K → 25.2M211-9#26263#26272
25.2M → Finish323-20#26272#26292
TOTALS297508-211
📊

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