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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Toshio Nakazawa

Bib: 7621 •M •Age: N/A

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 36%
Gender (Male)
#0 / 16340
Top 49%
Masters (Masters Men)
#0 / 10617
Top 38%
Age Group (M45-49)
#0 / 2413
Race Day Weather
51°/41°F
overcast clouds
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  • Segment-by-segment breakdown
  • Personalized race insights
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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
21:27
3.11 mi
Rank: #7791
Start → 5K
21:27 | 6:55/mi
10K
42:47
6.21 mi
Rank: #7709 (+82)
5K → 10K
21:20 | 6:52/mi
15K
1:04:22
9.32 mi
Rank: #7860 (-151)
10K → 15K
21:35 | 6:57/mi
20K
1:26:03
12.43 mi
Rank: #7786 (+74)
15K → 20K
21:41 | 6:59/mi
HALF
1:30:40
13.11 mi
Rank: #7743 (+43)
20K → HALF
4:37 | 6:47/mi
25K
1:47:56
15.53 mi
Rank: #7783 (-40)
HALF → 25K
17:16 | 7:08/mi
30K
2:10:49
18.64 mi
Rank: #7833 (-50)
25K → 30K
22:53 | 7:22/mi
20M
2:21:51
20.00 mi
Rank: #8165 (-332)
30K → 20M
11:02 | 8:08/mi
21M
2:32:32
21.00 mi
Rank: #9250 (-1085)
20M → 21M
10:41 | 10:41/mi
35K
2:38:29
21.75 mi
Rank: #9398 (-148)
21M → 35K
5:57 | 7:58/mi
23M
2:48:55
23.00 mi
Rank: #9664 (-266)
35K → 23M
10:26 | 8:21/mi
24M
2:57:03
24.00 mi
Rank: #9884 (-220)
23M → 24M
8:08 | 8:08/mi
40K
3:04:07
24.85 mi
Rank: #10062 (-178)
24M → 40K
7:04 | 8:16/mi
25.2M
3:07:18
25.20 mi
Rank: #10167 (-105)
40K → 25.2M
3:11 | 9:14/mi
FINISH
3:15:40
26.22 mi
Rank: #10442 (-275)
25.2M → FINISH
8:22 | 8:13/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:30:40
Pace6:55 /mi
2nd Half
Distance13.11 mi
Time1:45:00
Pace8:01 /mi
📊Positive Split: 15.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:29:2821:276:5521:27
6:55
-
10K
6.21 mi10:50:4842:476:5421:20
6:52
-0:03
15K
9.32 mi11:12:231:04:226:5521:35
6:57
+0:05
20K
12.43 mi11:34:041:26:036:5621:41
6:59
+0:02
HALF
13.11 mi11:38:411:30:406:554:37
6:47
-0:12
25K
15.53 mi11:55:571:47:566:5717:16
7:08
+0:21
30K
18.64 mi12:18:502:10:497:0222:53
7:22
+0:14
20M
20.00 mi12:29:522:21:517:0611:02
8:08
+0:46
21M
21.00 mi12:40:332:32:327:1610:41
10:41
+2:33
35K
21.75 mi12:46:302:38:297:185:57
7:58
-2:43
23M
23.00 mi12:56:562:48:557:2110:26
8:21
+0:23
24M
24.00 mi13:05:042:57:037:238:08
8:08
-0:13
40K
24.85 mi13:12:083:04:077:257:04
8:16
+0:08
25.2M
25.20 mi13:15:193:07:187:263:11
9:14
+0:58
FINISH
26.22 mi13:23:413:15:407:298:22
8:13
-1:01

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

6:47 /mi

Average Pace

7:28 /mi

Slowest Pace

10:41 /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

2:10:49

67% of race

Time at Steady Pace

50:59

26% of race

Time at Slower Pace

13:52

7% 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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:29:2821:276:5521:27
6:55
#7791
10K
6.21 mi10:50:4842:476:5421:20
6:52
#7709
15K
9.32 mi11:12:231:04:226:5521:35
6:57
#7860
20K
12.43 mi11:34:041:26:036:5621:41
6:59
#7786
HALF
13.11 mi11:38:411:30:406:554:37
6:47
#7743
25K
15.53 mi11:55:571:47:566:5717:16
7:08
#7783
30K
18.64 mi12:18:502:10:497:0222:53
7:22
#7833
20M
20.00 mi12:29:522:21:517:0611:02
8:08
#8165
21M
21.00 mi12:40:332:32:327:1610:41
10:41
#9250
35K
21.75 mi12:46:302:38:297:185:57
7:58
#9398
23M
23.00 mi12:56:562:48:557:2110:26
8:21
#9664
24M
24.00 mi13:05:042:57:037:238:08
8:08
#9884
40K
24.85 mi13:12:083:04:077:257:04
8:16
#10062
25.2M
25.20 mi13:15:193:07:187:263:11
9:14
#10167
FINISH
26.22 mi13:23:413:15:407:298:22
8:13
#10442
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi7791676667668186(Top 28%)6990(Top 43%)6990(Top 290%)
10K6.21 mi3.10 mi7709+826694+726694+727652(Top 26%)6672(Top 41%)6672(Top 277%)
15K9.32 mi3.11 mi7860-1516790-966790-968186(Top 28%)6990(Top 43%)6990(Top 290%)
20K12.43 mi3.11 mi7786+746741+496741+497715(Top 27%)6655(Top 41%)6655(Top 276%)
HALF13.11 mi0.68 mi7743+436708+336708+336914(Top 24%)6132(Top 38%)6132(Top 254%)
25K15.53 mi2.42 mi7783-406723-156723-158265(Top 28%)6906(Top 42%)6906(Top 286%)
30K18.64 mi3.11 mi7833-506727-46727-48627(Top 30%)6965(Top 43%)6965(Top 289%)
20M20.00 mi1.36 mi8165-3326903-1766903-17613654(Top 47%)9282(Top 57%)9282(Top 385%)
21M21.00 mi1.00 mi9250-10857492-5897492-58922371(Top 77%)13197(Top 81%)13197(Top 547%)
35K21.75 mi0.75 mi9398-1487565-737565-7314092(Top 49%)9340(Top 57%)9340(Top 387%)
23M23.00 mi1.25 mi9664-2667666-1017666-10114677(Top 51%)9517(Top 58%)9517(Top 394%)
24M24.00 mi1.00 mi9884-2207760-947760-9414608(Top 50%)9422(Top 58%)9422(Top 390%)
40K24.85 mi0.85 mi10062-1787812-527812-5214175(Top 49%)9139(Top 56%)9139(Top 379%)
25.2M25.20 mi0.35 mi10167-1057850-387850-3815863(Top 55%)9891(Top 61%)9891(Top 410%)
FINISH26.22 mi1.02 mi10442-2757969-1197969-11916443(Top 57%)10183(Top 62%)10183(Top 422%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 28%
×21
+97ft-345ft

Overall

8186

Males

6990

M45-49

6990

5K→10K

3.1 - 6.2 mi

Top 26%
×5
+79ft-138ft

Overall

7652

Males

6672

M45-49

6672

10K→15K

6.2 - 9.3 mi

Top 28%
×3
+67ft-78ft

Overall

8186

Males

6990

M45-49

6990

15K→20K

9.3 - 12.4 mi

Top 27%
×5
+106ft-86ft

Overall

7715

Males

6655

M45-49

6655

20K→HALF

12.4 - 13.1 mi

Top 24%
×2
+19ft-37ft

Overall

6914

Males

6132

M45-49

6132

HALF→25K

13.1 - 15.5 mi

Top 28%
×4
+66ft-88ft

Overall

8265

Males

6906

M45-49

6906

25K→30K

15.5 - 18.6 mi

Top 30%
×9
+181ft-148ft

Overall

8627

Males

6965

M45-49

6965

30K→20M

18.6 - 20.0 mi

Top 47%
×5
+64ft-50ft

Overall

13654

Males

9282

M45-49

9282

20M→21M

20.0 - 21.0 mi

Top 77%
×8
+106ft-24ft

Overall

22371

Males

13197

M45-49

13197

21M→35K

21.0 - 21.8 mi

Top 49%
×7
+17ft-86ft

Overall

14092

Males

9340

M45-49

9340

35K→23M

21.8 - 23.0 mi

Top 51%
×5
+23ft-63ft

Overall

14677

Males

9517

M45-49

9517

23M→24M

23.0 - 24.0 mi

Top 50%
×6
+12ft-82ft

Overall

14608

Males

9422

M45-49

9422

24M→40K

24.0 - 24.9 mi

Top 49%
×1
+6ft-20ft

Overall

14175

Males

9139

M45-49

9139

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1
+13ft-16ft

Overall

15863

Males

9891

M45-49

9891

25.2M→FINISH

25.2 - 26.2 mi

Top 57%
×2
+22ft-21ft

Overall

16443

Males

10183

M45-49

10183

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
989*
Passed By
2302
Net Change
-2651
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7791
5K → 10K255*173+82#7791#7709
10K → 15K84200-151#7709#7860
15K → 20K174100+74#7860#7786
20K → HALF529+43#7786#7743
HALF → 25K108148-40#7743#7783
25K → 30K128178-50#7783#7833
30K → 20M17200-332#7833#8165
20M → 21M1200-1085#8165#9250
21M → 35K26174-148#9250#9398
35K → 23M47200-266#9398#9664
23M → 24M28200-220#9664#9884
24M → 40K33200-178#9884#10062
40K → 25.2M16120-105#10062#10167
25.2M → FINISH20200-275#10167#10442
TOTALS989*2302-2651

* 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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Activity Data

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