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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Kenji Shimahata

Bib: 18579 •M •Age: N/A

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M55-59)
#0 / 1491
Race Day Weather
51°/41°F
overcast clouds
Personalized for Kenji

Your Race Performance Report is ready

See how your race unfolded, where your performance changed, and what to focus on next.

Personalized by MyRace AI
Preview insight
Your pace by distance
Fastest segment · 7:26/mi at mile 13.1

Your report includes

  • Race Overview
  • Pacing & Splits
  • Performance Analysis
  • Segment Analysis
  • Passing Analysis
  • Potential Focus Areas
One-time purchase · Instant access · Downloadable PDF · Shareable report

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
24:33
3.11 mi
Rank: #16200
Start → 5K
24:33 | 7:55/mi
10K
48:06
6.21 mi
Rank: #14968 (+1232)
5K → 10K
23:33 | 7:35/mi
15K
1:11:36
9.32 mi
Rank: #14381 (+587)
10K → 15K
23:30 | 7:34/mi
20K
1:35:52
12.43 mi
Rank: #14428 (-47)
15K → 20K
24:16 | 7:49/mi
HALF
1:40:56
13.11 mi
Rank: #14306 (+122)
20K → HALF
5:04 | 7:26/mi
25K
2:00:05
15.53 mi
Rank: #14330 (-24)
HALF → 25K
19:09 | 7:54/mi
30K
2:28:11
18.64 mi
Rank: #15590 (-1260)
25K → 30K
28:06 | 9:03/mi
20M
2:39:11
20.00 mi
Rank: #15416 (+174)
30K → 20M
11:00 | 8:06/mi
21M
2:47:54
21.00 mi
Rank: #15327 (+89)
20M → 21M
8:43 | 8:43/mi
35K
2:53:51
21.75 mi
Rank: #15262 (+65)
21M → 35K
5:57 | 7:58/mi
23M
3:04:22
23.00 mi
Rank: #15253 (+9)
35K → 23M
10:31 | 8:25/mi
24M
3:12:06
24.00 mi
Rank: #15077 (+176)
23M → 24M
7:44 | 7:44/mi
40K
3:18:58
24.85 mi
Rank: #14967 (+110)
24M → 40K
6:52 | 8:02/mi
25.2M
3:21:57
25.20 mi
Rank: #14924 (+43)
40K → 25.2M
2:59 | 8:40/mi
FINISH
3:30:47
26.22 mi
Rank: #15138 (-214)
25.2M → FINISH
8:50 | 8:41/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:40:56
Pace7:42 /mi
2nd Half
Distance13.11 mi
Time1:49:51
Pace8:23 /mi
📊Positive Split: 8.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:2424:337:5524:33
7:55
-
10K
6.21 mi11:49:5748:067:4523:33
7:35
-0:20
15K
9.32 mi12:13:271:11:367:4123:30
7:34
-0:01
20K
12.43 mi12:37:431:35:527:4324:16
7:49
+0:15
HALF
13.11 mi12:42:471:40:567:425:04
7:26
-0:23
25K
15.53 mi13:01:562:00:057:4419:09
7:54
+0:28
30K
18.64 mi13:30:022:28:117:5728:06
9:03
+1:09
20M
20.00 mi13:41:022:39:117:5811:00
8:06
-0:57
21M
21.00 mi13:49:452:47:548:008:43
8:43
+0:37
35K
21.75 mi13:55:422:53:518:005:57
7:58
-0:45
23M
23.00 mi14:06:133:04:228:0110:31
8:25
+0:27
24M
24.00 mi14:13:573:12:068:017:44
7:44
-0:41
40K
24.85 mi14:20:493:18:588:016:52
8:02
+0:18
25.2M
25.20 mi14:23:483:21:578:012:59
8:40
+0:38
FINISH
26.22 mi14:32:383:30:478:038:50
8:41
+0:01

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

7:26 /mi

Average Pace

8:03 /mi

Slowest Pace

9:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

52:07

25% of race

Time at Steady Pace

1:39:31

47% of race

Time at Slower Pace

59:09

28% of race

Average Pace: 8:02 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:26:2424:337:5524:33
7:55
#16200
10K
6.21 mi11:49:5748:067:4523:33
7:35
#14968
15K
9.32 mi12:13:271:11:367:4123:30
7:34
#14381
20K
12.43 mi12:37:431:35:527:4324:16
7:49
#14428
HALF
13.11 mi12:42:471:40:567:425:04
7:26
#14306
25K
15.53 mi13:01:562:00:057:4419:09
7:54
#14330
30K
18.64 mi13:30:022:28:117:5728:06
9:03
#15590
20M
20.00 mi13:41:022:39:117:5811:00
8:06
#15416
21M
21.00 mi13:49:452:47:548:008:43
8:43
#15327
35K
21.75 mi13:55:422:53:518:005:57
7:58
#15262
23M
23.00 mi14:06:133:04:228:0110:31
8:25
#15253
24M
24.00 mi14:13:573:12:068:017:44
7:44
#15077
40K
24.85 mi14:20:493:18:588:016:52
8:02
#14967
25.2M
25.20 mi14:23:483:21:578:012:59
8:40
#14924
FINISH
26.22 mi14:32:383:30:478:038:50
8:41
#15138
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi16200106911069113355(Top 46%)9528(Top 58%)9528(Top 639%)
10K6.21 mi3.10 mi14968+123210215+47610215+47613670(Top 47%)9694(Top 59%)9694(Top 650%)
15K9.32 mi3.11 mi14381+5879972+2439972+24313355(Top 46%)9528(Top 58%)9528(Top 639%)
20K12.43 mi3.11 mi14428-479975-39975-314607(Top 50%)9982(Top 61%)9982(Top 669%)
HALF13.11 mi0.68 mi14306+1229932+439932+4312408(Top 43%)9132(Top 56%)9132(Top 612%)
25K15.53 mi2.42 mi14330-249913+199913+1914574(Top 50%)9901(Top 61%)9901(Top 664%)
30K18.64 mi3.11 mi15590-126010373-46010373-46019780(Top 68%)12067(Top 74%)12067(Top 809%)
20M20.00 mi1.36 mi15416+17410282+9110282+9113510(Top 47%)9237(Top 57%)9237(Top 620%)
21M21.00 mi1.00 mi15327+8910213+6910213+6914463(Top 50%)9580(Top 59%)9580(Top 643%)
35K21.75 mi0.75 mi15262+6510178+3510178+3514134(Top 49%)9382(Top 57%)9382(Top 629%)
23M23.00 mi1.25 mi15253+910152+2610152+2615097(Top 52%)9727(Top 60%)9727(Top 652%)
24M24.00 mi1.00 mi15077+17610059+9310059+9311785(Top 41%)8166(Top 50%)8166(Top 548%)
40K24.85 mi0.85 mi14967+1109995+649995+6412696(Top 44%)8493(Top 52%)8493(Top 570%)
25.2M25.20 mi0.35 mi14924+439971+249971+2412553(Top 43%)8392(Top 51%)8392(Top 563%)
FINISH26.22 mi1.02 mi15138-21410054-8310054-8318979(Top 65%)11360(Top 70%)11360(Top 762%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21
+97ft-345ft

Overall

13355

Males

9528

M55-59

9528

5K→10K

3.1 - 6.2 mi

Top 47%
×5
+79ft-138ft

Overall

13670

Males

9694

M55-59

9694

10K→15K

6.2 - 9.3 mi

Top 46%
×3
+67ft-78ft

Overall

13355

Males

9528

M55-59

9528

15K→20K

9.3 - 12.4 mi

Top 50%
×5
+106ft-86ft

Overall

14607

Males

9982

M55-59

9982

20K→HALF

12.4 - 13.1 mi

Top 43%
×2
+19ft-37ft

Overall

12408

Males

9132

M55-59

9132

HALF→25K

13.1 - 15.5 mi

Top 50%
×4
+66ft-88ft

Overall

14574

Males

9901

M55-59

9901

25K→30K

15.5 - 18.6 mi

Top 68%
×9
+181ft-148ft

Overall

19780

Males

12067

M55-59

12067

30K→20M

18.6 - 20.0 mi

Top 47%
×5
+64ft-50ft

Overall

13510

Males

9237

M55-59

9237

20M→21M

20.0 - 21.0 mi

Top 50%
×8
+106ft-24ft

Overall

14463

Males

9580

M55-59

9580

21M→35K

21.0 - 21.8 mi

Top 49%
×7
+17ft-86ft

Overall

14134

Males

9382

M55-59

9382

35K→23M

21.8 - 23.0 mi

Top 52%
×5
+23ft-63ft

Overall

15097

Males

9727

M55-59

9727

23M→24M

23.0 - 24.0 mi

Top 41%
×6
+12ft-82ft

Overall

11785

Males

8166

M55-59

8166

24M→40K

24.0 - 24.9 mi

Top 44%
×1
+6ft-20ft

Overall

12696

Males

8493

M55-59

8493

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1
+13ft-16ft

Overall

12553

Males

8392

M55-59

8392

25.2M→FINISH

25.2 - 26.2 mi

Top 65%
×2
+22ft-21ft

Overall

18979

Males

11360

M55-59

11360

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
3217*
Passed By
1032
Net Change
+1062
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16200
5K → 10K1258*26+1232#16200#14968
10K → 15K620*33+587#14968#14381
15K → 20K145192-47#14381#14428
20K → HALF1253+122#14428#14306
HALF → 25K135159-24#14306#14330
25K → 30K31200-1260#14330#15590
30K → 20M19723+174#15590#15416
20M → 21M14657+89#15416#15327
21M → 35K9328+65#15327#15262
35K → 23M8576+9#15262#15253
23M → 24M1848+176#15253#15077
24M → 40K12919+110#15077#14967
40K → 25.2M518+43#14967#14924
25.2M → FINISH18200-214#14924#15138
TOTALS3217*1032+1062

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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