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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Naoto Izumisawa

Bib: 10563 •M •Age: N/A

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 38%
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Top 40%
Age Group (M50-54)
#0 / 1868
Top 43%
Race Day Weather
51°/41°F
overcast clouds

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
22:36
3.11 mi
Rank: #10810
Start → 5K
22:36 | 7:17/mi
10K
45:21
6.21 mi
Rank: #11052 (-242)
5K → 10K
22:45 | 7:20/mi
15K
1:07:53
9.32 mi
Rank: #10882 (+170)
10K → 15K
22:32 | 7:16/mi
20K
1:30:53
12.43 mi
Rank: #10952 (-70)
15K → 20K
23:00 | 7:25/mi
HALF
1:35:54
13.11 mi
Rank: #10991 (-39)
20K → HALF
5:01 | 7:22/mi
25K
1:54:07
15.53 mi
Rank: #11044 (-53)
HALF → 25K
18:13 | 7:31/mi
30K
2:18:31
18.64 mi
Rank: #11301 (-257)
25K → 30K
24:24 | 7:52/mi
20M
2:29:14
20.00 mi
Rank: #11332 (-31)
30K → 20M
10:43 | 7:54/mi
21M
2:37:56
21.00 mi
Rank: #11475 (-143)
20M → 21M
8:42 | 8:42/mi
35K
2:43:46
21.75 mi
Rank: #11519 (-44)
21M → 35K
5:50 | 7:48/mi
23M
2:53:42
23.00 mi
Rank: #11515 (+4)
35K → 23M
9:56 | 7:57/mi
24M
3:00:54
24.00 mi
Rank: #11271 (+244)
23M → 24M
7:12 | 7:12/mi
40K
3:07:23
24.85 mi
Rank: #11170 (+101)
24M → 40K
6:29 | 7:35/mi
25.2M
3:10:17
25.20 mi
Rank: #11160 (+10)
40K → 25.2M
2:54 | 8:25/mi
FINISH
3:17:51
26.22 mi
Rank: #11109 (+51)
25.2M → FINISH
7:34 | 7:26/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:35:54
Pace7:19 /mi
2nd Half
Distance13.11 mi
Time1:41:57
Pace7:47 /mi
📊Positive Split: 6.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:39:5922:367:1722:36
7:17
-
10K
6.21 mi11:02:4445:217:1822:45
7:20
+0:03
15K
9.32 mi11:25:161:07:537:1722:32
7:16
-0:04
20K
12.43 mi11:48:161:30:537:1923:00
7:25
+0:09
HALF
13.11 mi11:53:171:35:547:195:01
7:22
-0:03
25K
15.53 mi12:11:301:54:077:2118:13
7:31
+0:09
30K
18.64 mi12:35:542:18:317:2624:24
7:52
+0:21
20M
20.00 mi12:46:372:29:147:2810:43
7:54
+0:02
21M
21.00 mi12:55:192:37:567:328:42
8:42
+0:48
35K
21.75 mi13:01:092:43:467:325:50
7:48
-0:54
23M
23.00 mi13:11:052:53:427:349:56
7:57
+0:09
24M
24.00 mi13:18:173:00:547:337:12
7:12
-0:45
40K
24.85 mi13:24:463:07:237:336:29
7:35
+0:23
25.2M
25.20 mi13:27:403:10:177:342:54
8:25
+0:50
FINISH
26.22 mi13:35:143:17:517:347:34
7:26
-0:59

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

7:12 /mi

Average Pace

7:33 /mi

Slowest Pace

8:42 /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

52:20

26% of race

Time at Steady Pace

1:23:02

42% of race

Time at Slower Pace

1:02:29

32% of race

Average Pace: 7:33 /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 mi10:39:5922:367:1722:36
7:17
#10810
10K
6.21 mi11:02:4445:217:1822:45
7:20
#11052
15K
9.32 mi11:25:161:07:537:1722:32
7:16
#10882
20K
12.43 mi11:48:161:30:537:1923:00
7:25
#10952
HALF
13.11 mi11:53:171:35:547:195:01
7:22
#10991
25K
15.53 mi12:11:301:54:077:2118:13
7:31
#11044
30K
18.64 mi12:35:542:18:317:2624:24
7:52
#11301
20M
20.00 mi12:46:372:29:147:2810:43
7:54
#11332
21M
21.00 mi12:55:192:37:567:328:42
8:42
#11475
35K
21.75 mi13:01:092:43:467:325:50
7:48
#11519
23M
23.00 mi13:11:052:53:427:349:56
7:57
#11515
24M
24.00 mi13:18:173:00:547:337:12
7:12
#11271
40K
24.85 mi13:24:463:07:237:336:29
7:35
#11170
25.2M
25.20 mi13:27:403:10:177:342:54
8:25
#11160
FINISH
26.22 mi13:35:143:17:517:347:34
7:26
#11109
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi108108489848910583(Top 36%)8289(Top 51%)8289(Top 444%)
10K6.21 mi3.10 mi11052-2428582-938582-9311342(Top 39%)8681(Top 53%)8681(Top 465%)
15K9.32 mi3.11 mi10882+1708473+1098473+10910583(Top 36%)8289(Top 51%)8289(Top 444%)
20K12.43 mi3.11 mi10952-708471+28471+211145(Top 38%)8445(Top 52%)8445(Top 452%)
HALF13.11 mi0.68 mi10991-398482-118482-1111650(Top 40%)8770(Top 54%)8770(Top 469%)
25K15.53 mi2.42 mi11044-538490-88490-811502(Top 40%)8558(Top 52%)8558(Top 458%)
30K18.64 mi3.11 mi11301-2578570-808570-8012365(Top 43%)8814(Top 54%)8814(Top 472%)
20M20.00 mi1.36 mi11332-318551+198551+1911990(Top 41%)8551(Top 52%)8551(Top 458%)
21M21.00 mi1.00 mi11475-1438616-658616-6514354(Top 49%)9528(Top 58%)9528(Top 510%)
35K21.75 mi0.75 mi11519-448622-68622-612971(Top 45%)8860(Top 54%)8860(Top 474%)
23M23.00 mi1.25 mi11515+48586+368586+3612003(Top 41%)8357(Top 51%)8357(Top 447%)
24M24.00 mi1.00 mi11271+2448439+1478439+1477873(Top 27%)6188(Top 38%)6188(Top 331%)
40K24.85 mi0.85 mi11170+1018365+748365+749442(Top 33%)6933(Top 42%)6933(Top 371%)
25.2M25.20 mi0.35 mi11160+108350+158350+1510961(Top 38%)7605(Top 47%)7605(Top 407%)
FINISH26.22 mi1.02 mi11109+518286+648286+6410838(Top 37%)7522(Top 46%)7522(Top 403%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21
+97ft-345ft

Overall

10583

Males

8289

M50-54

8289

5K→10K

3.1 - 6.2 mi

Top 39%
×5
+79ft-138ft

Overall

11342

Males

8681

M50-54

8681

10K→15K

6.2 - 9.3 mi

Top 36%
×3
+67ft-78ft

Overall

10583

Males

8289

M50-54

8289

15K→20K

9.3 - 12.4 mi

Top 38%
×5
+106ft-86ft

Overall

11145

Males

8445

M50-54

8445

20K→HALF

12.4 - 13.1 mi

Top 40%
×2
+19ft-37ft

Overall

11650

Males

8770

M50-54

8770

HALF→25K

13.1 - 15.5 mi

Top 40%
×4
+66ft-88ft

Overall

11502

Males

8558

M50-54

8558

25K→30K

15.5 - 18.6 mi

Top 43%
×9
+181ft-148ft

Overall

12365

Males

8814

M50-54

8814

30K→20M

18.6 - 20.0 mi

Top 41%
×5
+64ft-50ft

Overall

11990

Males

8551

M50-54

8551

20M→21M

20.0 - 21.0 mi

Top 49%
×8
+106ft-24ft

Overall

14354

Males

9528

M50-54

9528

21M→35K

21.0 - 21.8 mi

Top 45%
×7
+17ft-86ft

Overall

12971

Males

8860

M50-54

8860

35K→23M

21.8 - 23.0 mi

Top 41%
×5
+23ft-63ft

Overall

12003

Males

8357

M50-54

8357

23M→24M

23.0 - 24.0 mi

Top 27%
×6
+12ft-82ft

Overall

7873

Males

6188

M50-54

6188

24M→40K

24.0 - 24.9 mi

Top 33%
×1
+6ft-20ft

Overall

9442

Males

6933

M50-54

6933

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1
+13ft-16ft

Overall

10961

Males

7605

M50-54

7605

25.2M→FINISH

25.2 - 26.2 mi

Top 37%
×2
+22ft-21ft

Overall

10838

Males

7522

M50-54

7522

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1582*
Passed By
1526
Net Change
-299
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10810
5K → 10K141200-242#10810#11052
10K → 15K259*89+170#11052#10882
15K → 20K130200-70#10882#10952
20K → HALF2463-39#10952#10991
HALF → 25K127180-53#10991#11044
25K → 30K115200-257#11044#11301
30K → 20M84115-31#11301#11332
20M → 21M48191-143#11332#11475
21M → 35K4690-44#11475#11519
35K → 23M10399+4#11519#11515
23M → 24M247*3+244#11515#11271
24M → 40K12221+101#11271#11170
40K → 25.2M3626+10#11170#11160
25.2M → FINISH10049+51#11160#11109
TOTALS1582*1526-299

* 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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