All Results|Race Analytics|Course|Contact
BOSTON MARATHON 2026

Masataka Akiyama

Bib: 8896•M

Boston Marathon logo
0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 29021
Top 23%
Gender (Male)
#0 / 16340
Top 36%
Masters (Masters Men)
#0 / 10617
Top 22%
Age Group (M45-49)
#0 / 2413
Top 31%
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
20:38
3.11 mi
Rank: #5343
Start → 5K
20:38 | 6:39/mi
10K
41:15
6.21 mi
Rank: #5316 (+27)
5K → 10K
20:37 | 6:39/mi
15K
1:01:56
9.32 mi
Rank: #5322 (-6)
10K → 15K
20:41 | 6:40/mi
20K
1:22:48
12.43 mi
Rank: #5294 (+28)
15K → 20K
20:52 | 6:44/mi
HALF
1:27:23
13.11 mi
Rank: #5341 (-47)
20K → HALF
4:35 | 6:44/mi
25K
1:43:52
15.53 mi
Rank: #5374 (-33)
HALF → 25K
16:29 | 6:48/mi
30K
2:05:54
18.64 mi
Rank: #5592 (-218)
25K → 30K
22:02 | 7:06/mi
20M
2:15:43
20.00 mi
Rank: #5713 (-121)
30K → 20M
9:49 | 7:14/mi
21M
2:23:40
21.00 mi
Rank: #5950 (-237)
20M → 21M
7:57 | 7:57/mi
35K
2:28:57
21.75 mi
Rank: #6025 (-75)
21M → 35K
5:17 | 7:04/mi
23M
2:38:39
23.00 mi
Rank: #6318 (-293)
35K → 23M
9:42 | 7:46/mi
24M
2:45:54
24.00 mi
Rank: #6370 (-52)
23M → 24M
7:15 | 7:15/mi
40K
2:52:41
24.85 mi
Rank: #6499 (-129)
24M → 40K
6:47 | 7:57/mi
25.2M
2:55:41
25.20 mi
Rank: #6570 (-71)
40K → 25.2M
3:00 | 8:42/mi
FINISH
3:03:33
26.22 mi
Rank: #6743 (-173)
25.2M → FINISH
7:52 | 7:44/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:27:23
Pace6:40 /mi
2nd Half
Distance13.11 mi
Time1:36:10
Pace7:21 /mi
📊Positive Split: 10.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:35:5920:386:3920:38
6:39
-
10K
6.21 mi10:56:3641:156:3920:37
6:39
0:00
15K
9.32 mi11:17:171:01:566:3920:41
6:40
+0:01
20K
12.43 mi11:38:091:22:486:4020:52
6:44
+0:04
HALF
13.11 mi11:42:441:27:236:404:35
6:44
0:00
25K
15.53 mi11:59:131:43:526:4216:29
6:48
+0:04
30K
18.64 mi12:21:152:05:546:4622:02
7:06
+0:18
20M
20.00 mi12:31:042:15:436:489:49
7:14
+0:08
21M
21.00 mi12:39:012:23:406:517:57
7:57
+0:43
35K
21.75 mi12:44:182:28:576:515:17
7:04
-0:53
23M
23.00 mi12:54:002:38:396:549:42
7:46
+0:42
24M
24.00 mi13:01:152:45:546:557:15
7:15
-0:31
40K
24.85 mi13:08:022:52:416:576:47
7:57
+0:42
25.2M
25.20 mi13:11:022:55:416:593:00
8:42
+0:45
FINISH
26.22 mi13:18:543:03:337:017:52
7:44
-0:58

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

6:39 /mi

Average Pace

7:00 /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

1:27:23

48% of race

Time at Steady Pace

1:00:52

33% of race

Time at Slower Pace

35:18

19% of race

Average Pace: 7:00 /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 mi10:35:5920:386:3920:38
6:39
#5343
10K
6.21 mi10:56:3641:156:3920:37
6:39
#5316
15K
9.32 mi11:17:171:01:566:3920:41
6:40
#5322
20K
12.43 mi11:38:091:22:486:4020:52
6:44
#5294
HALF
13.11 mi11:42:441:27:236:404:35
6:44
#5341
25K
15.53 mi11:59:131:43:526:4216:29
6:48
#5374
30K
18.64 mi12:21:152:05:546:4622:02
7:06
#5592
20M
20.00 mi12:31:042:15:436:489:49
7:14
#5713
21M
21.00 mi12:39:012:23:406:517:57
7:57
#5950
35K
21.75 mi12:44:182:28:576:515:17
7:04
#6025
23M
23.00 mi12:54:002:38:396:549:42
7:46
#6318
24M
24.00 mi13:01:152:45:546:557:15
7:15
#6370
40K
24.85 mi13:08:022:52:416:576:47
7:57
#6499
25.2M
25.20 mi13:11:022:55:416:593:00
8:42
#6570
FINISH
26.22 mi13:18:543:03:337:017:52
7:44
#6743
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

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 mi5343496049605434(Top 19%)5022(Top 31%)5022(Top 208%)
10K6.21 mi3.10 mi5316+274939+214939+215353(Top 18%)4955(Top 30%)4955(Top 205%)
15K9.32 mi3.11 mi5322-64938+14938+15434(Top 19%)5022(Top 31%)5022(Top 208%)
20K12.43 mi3.11 mi5294+284906+324906+325370(Top 19%)4935(Top 30%)4935(Top 205%)
HALF13.11 mi0.68 mi5341-474940-344940-346273(Top 22%)5618(Top 34%)5618(Top 233%)
25K15.53 mi2.42 mi5374-334963-234963-235781(Top 20%)5207(Top 32%)5207(Top 216%)
30K18.64 mi3.11 mi5592-2185108-1455108-1456603(Top 23%)5719(Top 35%)5719(Top 237%)
20M20.00 mi1.36 mi5713-1215186-785186-787140(Top 25%)5986(Top 37%)5986(Top 248%)
21M21.00 mi1.00 mi5950-2375353-1675353-1679509(Top 33%)7208(Top 44%)7208(Top 299%)
35K21.75 mi0.75 mi6025-755402-495402-497520(Top 26%)6138(Top 38%)6138(Top 254%)
23M23.00 mi1.25 mi6318-2935621-2195621-21910624(Top 37%)7658(Top 47%)7658(Top 317%)
24M24.00 mi1.00 mi6370-525650-295650-298184(Top 28%)6342(Top 39%)6342(Top 263%)
40K24.85 mi0.85 mi6499-1295721-715721-7111970(Top 41%)8142(Top 50%)8142(Top 337%)
25.2M25.20 mi0.35 mi6570-715768-475768-4712758(Top 44%)8444(Top 52%)8444(Top 350%)
FINISH26.22 mi1.02 mi6743-1735867-995867-9913076(Top 45%)8594(Top 53%)8594(Top 356%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21
+97ft-345ft

Overall

5434

Males

5022

M45-49

5022

5K→10K

3.1 - 6.2 mi

Top 18%
×5
+79ft-138ft

Overall

5353

Males

4955

M45-49

4955

10K→15K

6.2 - 9.3 mi

Top 19%
×3
+67ft-78ft

Overall

5434

Males

5022

M45-49

5022

15K→20K

9.3 - 12.4 mi

Top 19%
×5
+106ft-86ft

Overall

5370

Males

4935

M45-49

4935

20K→HALF

12.4 - 13.1 mi

Top 22%
×2
+19ft-37ft

Overall

6273

Males

5618

M45-49

5618

HALF→25K

13.1 - 15.5 mi

Top 20%
×4
+66ft-88ft

Overall

5781

Males

5207

M45-49

5207

25K→30K

15.5 - 18.6 mi

Top 23%
×9
+181ft-148ft

Overall

6603

Males

5719

M45-49

5719

30K→20M

18.6 - 20.0 mi

Top 25%
×5
+64ft-50ft

Overall

7140

Males

5986

M45-49

5986

20M→21M

20.0 - 21.0 mi

Top 33%
×8
+106ft-24ft

Overall

9509

Males

7208

M45-49

7208

21M→35K

21.0 - 21.8 mi

Top 26%
×7
+17ft-86ft

Overall

7520

Males

6138

M45-49

6138

35K→23M

21.8 - 23.0 mi

Top 37%
×5
+23ft-63ft

Overall

10624

Males

7658

M45-49

7658

23M→24M

23.0 - 24.0 mi

Top 28%
×6
+12ft-82ft

Overall

8184

Males

6342

M45-49

6342

24M→40K

24.0 - 24.9 mi

Top 41%
×1
+6ft-20ft

Overall

11970

Males

8142

M45-49

8142

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1
+13ft-16ft

Overall

12758

Males

8444

M45-49

8444

25.2M→FINISH

25.2 - 26.2 mi

Top 45%
×2
+22ft-21ft

Overall

13076

Males

8594

M45-49

8594

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
813*
Passed By
1933
Net Change
-1400
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5343
5K → 10K204*177+27#5343#5316
10K → 15K120126-6#5316#5322
15K → 20K12092+28#5322#5294
20K → HALF1360-47#5294#5341
HALF → 25K78111-33#5341#5374
25K → 30K82200-218#5374#5592
30K → 20M39160-121#5592#5713
20M → 21M22200-237#5713#5950
21M → 35K2398-75#5950#6025
35K → 23M28200-293#6025#6318
23M → 24M4193-52#6318#6370
24M → 40K25154-129#6370#6499
40K → 25.2M677-71#6499#6570
25.2M → FINISH12185-173#6570#6743
TOTALS813*1933-1400

* 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

Loading...

🎨Heatmap Timeline

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Activity Data

Upload your GPX file to see detailed activity metrics

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export & Support

Download your data, get help, and share your feedback

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing