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BOSTON MARATHON 2023

Claudio Ikeda

Bib: 29740 M BR

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M50-54)
#0 / 2052
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
9:48/mi
30:26
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
9:24/mi
59:39
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
9:49/mi
1:30:09
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
9:32/mi
1:59:46
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
9:24/mi
2:06:11
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
11:09/mi
2:33:12
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
10:44/mi
3:06:33
↑ 181↓ 1480.2%
138 ft elev
20M
10:13/mi
3:20:26
↑ 64↓ 500.2%
148 ft elev
21M
11:21/mi
3:31:47
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
14:02/mi
3:42:17
↑ 17↓ 861.7%
156 ft elev
23M
10:15/mi
3:55:07
↑ 23↓ 630.6%
116 ft elev
24M
9:51/mi
4:04:58
↓ 821.3%
34 ft elev
40K· 24.85 mi
10:47/mi
4:14:11
↓ 200.3%
20 ft elev
25.2M
10:06/mi
4:17:40
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
9:23/mi
4:27:14
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:06:11
Pace9:38 /mi
2nd Half
Distance13.11 mi
Time2:21:03
Pace10:46 /mi
📊Positive Split: 11.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:4830:269:4830:26
9:48
-
10K
6.21 mi12:22:0159:399:3629:13
9:24
-0:24
15K
9.32 mi12:52:311:30:099:4030:30
9:49
+0:25
20K
12.43 mi13:22:081:59:469:3829:37
9:32
-0:17
Half
13.11 mi13:28:332:06:119:386:25
9:24
-0:08
25K
15.53 mi13:55:342:33:129:5227:01
11:09
+1:45
30K
18.64 mi14:28:553:06:3310:0033:21
10:44
-0:25
20M
20.00 mi14:42:483:20:2610:0113:53
10:13
-0:31
21M
21.00 mi14:54:093:31:4710:0511:21
11:21
+1:08
35K
21.75 mi15:04:393:42:1710:1310:30
14:02
+2:41
23M
23.00 mi15:17:293:55:0710:1312:50
10:15
-3:47
24M
24.00 mi15:27:204:04:5810:129:51
9:51
-0:24
40K
24.85 mi15:36:334:14:1110:149:13
10:47
+0:56
25.2M
25.20 mi15:40:024:17:4010:133:29
10:06
-0:41
Finish
26.22 mi15:49:364:27:1410:129:34
9:23
-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

9:23 /mi

Average Pace

10:12 /mi

Slowest Pace

14:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

45:12

17% of race

Time at Steady Pace

2:10:36

49% of race

Time at Slower Pace

1:31:26

34% of race

Average Pace: 10:12 /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 mi11:52:4830:269:4830:26
9:48
#22903
10K
6.21 mi12:22:0159:399:3629:13
9:24
#22601
15K
9.32 mi12:52:311:30:099:4030:30
9:49
#22789
20K
12.43 mi13:22:081:59:469:3829:37
9:32
#22512
Half
13.11 mi13:28:332:06:119:386:25
9:24
#22483
25K
15.53 mi13:55:342:33:129:5227:01
11:09
#22873
30K
18.64 mi14:28:553:06:3310:0033:21
10:44
#22811
20M
20.00 mi14:42:483:20:2610:0113:53
10:13
#22686
21M
21.00 mi14:54:093:31:4710:0511:21
11:21
#22630
35K
21.75 mi15:04:393:42:1710:1310:30
14:02
#22881
23M
23.00 mi15:17:293:55:0710:1312:50
10:15
#22754
24M
24.00 mi15:27:204:04:5810:129:51
9:51
#22648
40K
24.85 mi15:36:334:14:1110:149:13
10:47
#22628
25.2M
25.20 mi15:40:024:17:4010:133:29
10:06
#22578
Finish
26.22 mi15:49:364:27:1410:129:34
9:23
#22494
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi22903135481354823085(Top 87%)13674(Top 90%)13674(Top 666%)
10K6.21 mi3.10 mi22601+30213430+11813430+11822220(Top 83%)13265(Top 87%)13265(Top 646%)
15K9.32 mi3.11 mi22789-18813540-11013540-11023085(Top 87%)13674(Top 90%)13674(Top 666%)
20K12.43 mi3.11 mi22512+27713394+14613394+14621655(Top 81%)13032(Top 86%)13032(Top 635%)
Half13.11 mi0.68 mi22483+2913382+1213382+1221828(Top 82%)13110(Top 86%)13110(Top 639%)
25K15.53 mi2.42 mi22873-39013556-17413556-17424185(Top 91%)14110(Top 93%)14110(Top 688%)
30K18.64 mi3.11 mi22811+6213502+5413502+5422657(Top 85%)13359(Top 88%)13359(Top 651%)
20M20.00 mi1.36 mi22686+12513428+7413428+7421058(Top 79%)12597(Top 83%)12597(Top 614%)
21M21.00 mi1.00 mi22630+5613391+3713391+3721593(Top 81%)12795(Top 84%)12795(Top 624%)
35K21.75 mi0.75 mi22881-25113506-11513506-11526139(Top 98%)14919(Top 98%)14919(Top 727%)
23M23.00 mi1.25 mi22754+12713437+6913437+6920710(Top 78%)12339(Top 81%)12339(Top 601%)
24M24.00 mi1.00 mi22648+10613381+5613381+5620379(Top 77%)12168(Top 80%)12168(Top 593%)
40K24.85 mi0.85 mi22628+2013361+2013361+2021891(Top 82%)12778(Top 84%)12778(Top 623%)
25.2M25.20 mi0.35 mi22578+5013338+2313338+2317767(Top 67%)10926(Top 72%)10926(Top 532%)
Finish26.22 mi1.02 mi22494+8413291+4713291+4719712(Top 74%)11853(Top 78%)11853(Top 578%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 87%
×21story building
+97ft-345ft

Overall

23085

Males

13674

M50-54

13674

5K→10K

3.1 - 6.2 mi

Top 83%
×5story building
+79ft-138ft

Overall

22220

Males

13265

M50-54

13265

10K→15K

6.2 - 9.3 mi

Top 87%
×3story building
+67ft-78ft

Overall

23085

Males

13674

M50-54

13674

15K→20K

9.3 - 12.4 mi

Top 81%
×5story building
+106ft-86ft

Overall

21655

Males

13032

M50-54

13032

20K→Half

12.4 - 13.1 mi

Top 82%
×2story building
+19ft-37ft

Overall

21828

Males

13110

M50-54

13110

Half→25K

13.1 - 15.5 mi

Top 91%
×4story building
+66ft-88ft

Overall

24185

Males

14110

M50-54

14110

25K→30K

15.5 - 18.6 mi

Top 85%
×9story building
+181ft-148ft

Overall

22657

Males

13359

M50-54

13359

30K→20M

18.6 - 20.0 mi

Top 79%
×5story building
+64ft-50ft

Overall

21058

Males

12597

M50-54

12597

20M→21M

20.0 - 21.0 mi

Top 81%
×8story building
+106ft-24ft

Overall

21593

Males

12795

M50-54

12795

21M→35K

21.0 - 21.8 mi

Top 98%
×7story building
+17ft-86ft

Overall

26139

Males

14919

M50-54

14919

35K→23M

21.8 - 23.0 mi

Top 78%
×5story building
+23ft-63ft

Overall

20710

Males

12339

M50-54

12339

23M→24M

23.0 - 24.0 mi

Top 77%
×6story building
+12ft-82ft

Overall

20379

Males

12168

M50-54

12168

24M→40K

24.0 - 24.9 mi

Top 82%
×1story
+6ft-20ft

Overall

21891

Males

12778

M50-54

12778

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

17767

Males

10926

M50-54

10926

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2story building
+22ft-21ft

Overall

19712

Males

11853

M50-54

11853

Passing Analysis

Category:
Athletes Passed
1669
Passed By
1260
Net Change
+409
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22903
5K → 10K424122+302#22903#22601
10K → 15K86274-188#22601#22789
15K → 20K30730+277#22789#22512
20K → Half4415+29#22512#22483
Half → 25K22412-390#22483#22873
25K → 30K15593+62#22873#22811
30K → 20M13510+125#22811#22686
20M → 21M8125+56#22686#22630
21M → 35K4255-251#22630#22881
35K → 23M1303+127#22881#22754
23M → 24M1093+106#22754#22648
24M → 40K3414+20#22648#22628
40K → 25.2M500+50#22628#22578
25.2M → Finish884+84#22578#22494
TOTALS16691260+409
📊

Passing Visuals

Category:
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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