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BOSTON MARATHON 2023

Katsuya Ishikawa

Bib: 10836•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 30%
Gender (Male)
#0 / 15176
Top 44%
Masters (Masters Men)
#0 / 9891
Top 31%
Division (M60-64)
#0 / 1110
Top 5%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:53
Rank: #8537
Start → 5K
22:53 | 7:22/mi
10K· 6.21 mi
45:22
Rank: #8441 (+96)
5K → 10K
22:29 | 7:14/mi
15K· 9.32 mi
1:07:58
Rank: #8402 (+39)
10K → 15K
22:36 | 7:16/mi
20K· 12.43 mi
1:30:49
Rank: #8308 (+94)
15K → 20K
22:51 | 7:21/mi
Half· 13.11 mi
1:35:50
Rank: #8329 (-21)
20K → Half
5:01 | 7:21/mi
25K· 15.53 mi
1:53:52
Rank: #8305 (+24)
Half → 25K
18:02 | 7:26/mi
30K· 18.64 mi
2:17:24
Rank: #8153 (+152)
25K → 30K
23:32 | 7:34/mi
20M
2:27:37
Rank: #8026 (+127)
30K → 20M
10:13 | 7:31/mi
21M
2:35:40
Rank: #7964 (+62)
20M → 21M
8:03 | 8:03/mi
35K· 21.75 mi
2:41:06
Rank: #7910 (+54)
21M → 35K
5:26 | 7:16/mi
23M
2:50:47
Rank: #7891 (+19)
35K → 23M
9:41 | 7:44/mi
24M
2:58:20
Rank: #7872 (+19)
23M → 24M
7:33 | 7:33/mi
40K· 24.85 mi
3:04:53
Rank: #7848 (+24)
24M → 40K
6:33 | 7:40/mi
25.2M
3:07:46
Rank: #7853 (-5)
40K → 25.2M
2:53 | 8:22/mi
Finish· 26.22 mi
3:15:36
Rank: #7898 (-45)
25.2M → Finish
7:50 | 7:41/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:50
Pace7:19 /mi
2nd Half
Distance13.11 mi
Time1:39:46
Pace7:37 /mi
📊Positive Split: 4.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:5422:537:2222:53
7:22
-
10K
6.21 mi11:11:2345:227:1822:29
7:14
-0:08
15K
9.32 mi11:33:591:07:587:1822:36
7:16
+0:02
20K
12.43 mi11:56:501:30:497:1822:51
7:21
+0:05
Half
13.11 mi12:01:511:35:507:195:01
7:21
0:00
25K
15.53 mi12:19:531:53:527:2018:02
7:26
+0:05
30K
18.64 mi12:43:252:17:247:2223:32
7:34
+0:08
20M
20.00 mi12:53:382:27:377:2310:13
7:31
-0:03
21M
21.00 mi13:01:412:35:407:258:03
8:03
+0:32
35K
21.75 mi13:07:072:41:067:245:26
7:16
-0:47
23M
23.00 mi13:16:482:50:477:269:41
7:44
+0:28
24M
24.00 mi13:24:212:58:207:267:33
7:33
-0:11
40K
24.85 mi13:30:543:04:537:266:33
7:40
+0:07
25.2M
25.20 mi13:33:473:07:467:272:53
8:22
+0:42
Finish
26.22 mi13:41:373:15:367:287:50
7:41
-0:41

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

7:14 /mi

Average Pace

7:28 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:04:40

94% of race

Time at Steady Pace

10:56

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:28 /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 mi10:48:5422:537:2222:53
7:22
#8537
10K
6.21 mi11:11:2345:227:1822:29
7:14
#8441
15K
9.32 mi11:33:591:07:587:1822:36
7:16
#8402
20K
12.43 mi11:56:501:30:497:1822:51
7:21
#8308
Half
13.11 mi12:01:511:35:507:195:01
7:21
#8329
25K
15.53 mi12:19:531:53:527:2018:02
7:26
#8305
30K
18.64 mi12:43:252:17:247:2223:32
7:34
#8153
20M
20.00 mi12:53:382:27:377:2310:13
7:31
#8026
21M
21.00 mi13:01:412:35:407:258:03
8:03
#7964
35K
21.75 mi13:07:072:41:067:245:26
7:16
#7910
23M
23.00 mi13:16:482:50:477:269:41
7:44
#7891
24M
24.00 mi13:24:212:58:207:267:33
7:33
#7872
40K
24.85 mi13:30:543:04:537:266:33
7:40
#7848
25.2M
25.20 mi13:33:473:07:467:272:53
8:22
#7853
Finish
26.22 mi13:41:373:15:367:287:50
7:41
#7898
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi8537732073208336(Top 31%)7129(Top 47%)7129(Top 642%)
10K6.21 mi3.10 mi8441+967234+867234+868368(Top 31%)7178(Top 47%)7178(Top 647%)
15K9.32 mi3.11 mi8402+397212+227212+228336(Top 31%)7129(Top 47%)7129(Top 642%)
20K12.43 mi3.11 mi8308+947137+757137+758173(Top 31%)7000(Top 46%)7000(Top 631%)
Half13.11 mi0.68 mi8329-217147-107147-108949(Top 34%)7465(Top 49%)7465(Top 673%)
25K15.53 mi2.42 mi8305+247105+427105+428293(Top 31%)6995(Top 46%)6995(Top 630%)
30K18.64 mi3.11 mi8153+1526967+1386967+1387750(Top 29%)6542(Top 43%)6542(Top 589%)
20M20.00 mi1.36 mi8026+1276875+926875+926908(Top 26%)5917(Top 39%)5917(Top 533%)
21M21.00 mi1.00 mi7964+626821+546821+547649(Top 29%)6275(Top 41%)6275(Top 565%)
35K21.75 mi0.75 mi7910+546772+496772+496903(Top 26%)5837(Top 38%)5837(Top 526%)
23M23.00 mi1.25 mi7891+196740+326740+327942(Top 30%)6377(Top 42%)6377(Top 575%)
24M24.00 mi1.00 mi7872+196703+376703+378024(Top 30%)6332(Top 42%)6332(Top 570%)
40K24.85 mi0.85 mi7848+246671+326671+327683(Top 29%)6047(Top 40%)6047(Top 545%)
25.2M25.20 mi0.35 mi7853-56670+16670+18605(Top 32%)6506(Top 43%)6506(Top 586%)
Finish26.22 mi1.02 mi7898-456675-56675-59863(Top 37%)7208(Top 47%)7208(Top 649%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 31%
×21stories
+97ft-345ft

Overall

8336

Males

7129

M60-64

7129

5K→10K

3.1 - 6.2 mi

Top 31%
×5stories
+79ft-138ft

Overall

8368

Males

7178

M60-64

7178

10K→15K

6.2 - 9.3 mi

Top 31%
×3stories
+67ft-78ft

Overall

8336

Males

7129

M60-64

7129

15K→20K

9.3 - 12.4 mi

Top 31%
×5stories
+106ft-86ft

Overall

8173

Males

7000

M60-64

7000

20K→Half

12.4 - 13.1 mi

Top 34%
×2stories
+19ft-37ft

Overall

8949

Males

7465

M60-64

7465

Half→25K

13.1 - 15.5 mi

Top 31%
×4stories
+66ft-88ft

Overall

8293

Males

6995

M60-64

6995

25K→30K

15.5 - 18.6 mi

Top 29%
×9stories
+181ft-148ft

Overall

7750

Males

6542

M60-64

6542

30K→20M

18.6 - 20.0 mi

Top 26%
×5stories
+64ft-50ft

Overall

6908

Males

5917

M60-64

5917

20M→21M

20.0 - 21.0 mi

Top 29%
×8stories
+106ft-24ft

Overall

7649

Males

6275

M60-64

6275

21M→35K

21.0 - 21.8 mi

Top 26%
×7stories
+17ft-86ft

Overall

6903

Males

5837

M60-64

5837

35K→23M

21.8 - 23.0 mi

Top 30%
×5stories
+23ft-63ft

Overall

7942

Males

6377

M60-64

6377

23M→24M

23.0 - 24.0 mi

Top 30%
×6stories
+12ft-82ft

Overall

8024

Males

6332

M60-64

6332

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

7683

Males

6047

M60-64

6047

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

8605

Males

6506

M60-64

6506

25.2M→Finish

25.2 - 26.2 mi

Top 37%
×2stories
+22ft-21ft

Overall

9863

Males

7208

M60-64

7208

Passing Analysis

Category:
Athletes Passed
1570
Passed By
931
Net Change
+639
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8537
5K → 10K283187+96#8537#8441
10K → 15K157118+39#8441#8402
15K → 20K16874+94#8402#8308
20K → Half1233-21#8308#8329
Half → 25K125101+24#8329#8305
25K → 30K20452+152#8305#8153
30K → 20M15225+127#8153#8026
20M → 21M10038+62#8026#7964
21M → 35K7622+54#7964#7910
35K → 23M8768+19#7910#7891
23M → 24M7455+19#7891#7872
24M → 40K6743+24#7872#7848
40K → 25.2M2328-5#7848#7853
25.2M → Finish4287-45#7853#7898
TOTALS1570931+639
📊

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