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

Aiji Nakano

Bib: 30216•M

Boston Marathon logo
0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M70-74)
#0 / 281
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
32:15
3.11 mi
Rank: #26925
Start → 5K
32:15 | 10:23/mi
10K
1:03:04
6.21 mi
Rank: #26275 (+650)
5K → 10K
30:49 | 9:56/mi
15K
1:34:41
9.32 mi
Rank: #26195 (+80)
10K → 15K
31:37 | 10:11/mi
20K
2:08:11
12.43 mi
Rank: #26336 (-141)
15K → 20K
33:30 | 10:47/mi
HALF
2:15:22
13.11 mi
Rank: #26371 (-35)
20K → HALF
7:11 | 10:33/mi
25K
2:41:38
15.53 mi
Rank: #26322 (+49)
HALF → 25K
26:16 | 10:50/mi
30K
3:16:09
18.64 mi
Rank: #26156 (+166)
25K → 30K
34:31 | 11:07/mi
20M
3:31:24
20.00 mi
Rank: #26095 (+61)
30K → 20M
15:15 | 11:14/mi
21M
3:44:53
21.00 mi
Rank: #26180 (-85)
20M → 21M
13:29 | 13:29/mi
35K
3:53:05
21.75 mi
Rank: #26149 (+31)
21M → 35K
8:12 | 10:58/mi
23M
4:08:22
23.00 mi
Rank: #26192 (-43)
35K → 23M
15:17 | 12:13/mi
24M
4:19:55
24.00 mi
Rank: #26190 (+2)
23M → 24M
11:33 | 11:33/mi
40K
4:30:29
24.85 mi
Rank: #26203 (-13)
24M → 40K
10:34 | 12:22/mi
25.2M
4:35:02
25.20 mi
Rank: #26204 (-1)
40K → 25.2M
4:33 | 13:12/mi
FINISH
4:46:51
26.22 mi
Rank: #26257 (-53)
25.2M → FINISH
11:49 | 11:36/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:15:22
Pace10:20 /mi
2nd Half
Distance13.11 mi
Time2:31:29
Pace11:34 /mi
📊Positive Split: 11.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:58:0132:1510:2332:15
10:23
-
10K
6.21 mi12:28:501:03:0410:0930:49
9:56
-0:27
15K
9.32 mi13:00:271:34:4110:1031:37
10:11
+0:15
20K
12.43 mi13:33:572:08:1110:1933:30
10:47
+0:36
HALF
13.11 mi13:41:082:15:2210:207:11
10:33
-0:14
25K
15.53 mi14:07:242:41:3810:2526:16
10:50
+0:17
30K
18.64 mi14:41:553:16:0910:3234:31
11:07
+0:17
20M
20.00 mi14:57:103:31:2410:3515:15
11:14
+0:07
21M
21.00 mi15:10:393:44:5310:4313:29
13:29
+2:15
35K
21.75 mi15:18:513:53:0510:448:12
10:58
-2:31
23M
23.00 mi15:34:084:08:2210:4815:17
12:13
+1:15
24M
24.00 mi15:45:414:19:5510:5011:33
11:33
-0:40
40K
24.85 mi15:56:154:30:2910:5310:34
12:22
+0:49
25.2M
25.20 mi16:00:484:35:0210:554:33
13:12
+0:50
FINISH
26.22 mi16:12:374:46:5110:5711:49
11:36
-1:36

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

9:56 /mi

Average Pace

10:57 /mi

Slowest Pace

13:29 /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

1:41:52

36% of race

Time at Steady Pace

2:21:06

49% of race

Time at Slower Pace

43:53

15% of race

Average Pace: 10:56 /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 mi11:58:0132:1510:2332:15
10:23
#26925
10K
6.21 mi12:28:501:03:0410:0930:49
9:56
#26275
15K
9.32 mi13:00:271:34:4110:1031:37
10:11
#26195
20K
12.43 mi13:33:572:08:1110:1933:30
10:47
#26336
HALF
13.11 mi13:41:082:15:2210:207:11
10:33
#26371
25K
15.53 mi14:07:242:41:3810:2526:16
10:50
#26322
30K
18.64 mi14:41:553:16:0910:3234:31
11:07
#26156
20M
20.00 mi14:57:103:31:2410:3515:15
11:14
#26095
21M
21.00 mi15:10:393:44:5310:4313:29
13:29
#26180
35K
21.75 mi15:18:513:53:0510:448:12
10:58
#26149
23M
23.00 mi15:34:084:08:2210:4815:17
12:13
#26192
24M
24.00 mi15:45:414:19:5510:5011:33
11:33
#26190
40K
24.85 mi15:56:154:30:2910:5310:34
12:22
#26203
25.2M
25.20 mi16:00:484:35:0210:554:33
13:12
#26204
FINISH
26.22 mi16:12:374:46:5110:5711:49
11:36
#26257
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM70-74Seg. OverallSeg. MalesSeg. M70-74
5K3.11 mi3.11 mi26925155931559326081(Top 90%)15208(Top 93%)15208(Top 5412%)
10K6.21 mi3.10 mi26275+65015317+27615317+27625632(Top 88%)15015(Top 92%)15015(Top 5343%)
15K9.32 mi3.11 mi26195+8015268+4915268+4926081(Top 90%)15208(Top 93%)15208(Top 5412%)
20K12.43 mi3.11 mi26336-14115315-4715315-4726665(Top 92%)15434(Top 94%)15434(Top 5493%)
HALF13.11 mi0.68 mi26371-3515330-1515330-1526732(Top 92%)15431(Top 94%)15431(Top 5491%)
25K15.53 mi2.42 mi26322+4915300+3015300+3026059(Top 90%)15128(Top 93%)15128(Top 5384%)
30K18.64 mi3.11 mi26156+16615199+10115199+10125527(Top 88%)14792(Top 91%)14792(Top 5264%)
20M20.00 mi1.36 mi26095+6115163+3615163+3625309(Top 87%)14603(Top 89%)14603(Top 5197%)
21M21.00 mi1.00 mi26180-8515187-2415187-2426862(Top 93%)15282(Top 94%)15282(Top 5438%)
35K21.75 mi0.75 mi26149+3115163+2415163+2425202(Top 87%)14484(Top 89%)14484(Top 5154%)
23M23.00 mi1.25 mi26192-4315167-415167-426418(Top 91%)15040(Top 92%)15040(Top 5352%)
24M24.00 mi1.00 mi26190+215159+815159+826013(Top 90%)14800(Top 91%)14800(Top 5267%)
40K24.85 mi0.85 mi26203-1315150+915150+926347(Top 91%)14932(Top 91%)14932(Top 5314%)
25.2M25.20 mi0.35 mi26204-115147+315147+326314(Top 91%)14942(Top 91%)14942(Top 5317%)
FINISH26.22 mi1.02 mi26257-5315158-1115158-1126988(Top 93%)15258(Top 93%)15258(Top 5430%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21
+97ft-345ft

Overall

26081

Males

15208

M70-74

15208

5K→10K

3.1 - 6.2 mi

Top 88%
×5
+79ft-138ft

Overall

25632

Males

15015

M70-74

15015

10K→15K

6.2 - 9.3 mi

Top 90%
×3
+67ft-78ft

Overall

26081

Males

15208

M70-74

15208

15K→20K

9.3 - 12.4 mi

Top 92%
×5
+106ft-86ft

Overall

26665

Males

15434

M70-74

15434

20K→HALF

12.4 - 13.1 mi

Top 92%
×2
+19ft-37ft

Overall

26732

Males

15431

M70-74

15431

HALF→25K

13.1 - 15.5 mi

Top 90%
×4
+66ft-88ft

Overall

26059

Males

15128

M70-74

15128

25K→30K

15.5 - 18.6 mi

Top 88%
×9
+181ft-148ft

Overall

25527

Males

14792

M70-74

14792

30K→20M

18.6 - 20.0 mi

Top 87%
×5
+64ft-50ft

Overall

25309

Males

14603

M70-74

14603

20M→21M

20.0 - 21.0 mi

Top 93%
×8
+106ft-24ft

Overall

26862

Males

15282

M70-74

15282

21M→35K

21.0 - 21.8 mi

Top 87%
×7
+17ft-86ft

Overall

25202

Males

14484

M70-74

14484

35K→23M

21.8 - 23.0 mi

Top 91%
×5
+23ft-63ft

Overall

26418

Males

15040

M70-74

15040

23M→24M

23.0 - 24.0 mi

Top 90%
×6
+12ft-82ft

Overall

26013

Males

14800

M70-74

14800

24M→40K

24.0 - 24.9 mi

Top 91%
×1
+6ft-20ft

Overall

26347

Males

14932

M70-74

14932

40K→25.2M

24.9 - 25.2 mi

Top 91%
×1
+13ft-16ft

Overall

26314

Males

14942

M70-74

14942

25.2M→FINISH

25.2 - 26.2 mi

Top 93%
×2
+22ft-21ft

Overall

26988

Males

15258

M70-74

15258

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1521*
Passed By
836
Net Change
+668
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26925
5K → 10K676*26+650#26925#26275
10K → 15K17393+80#26275#26195
15K → 20K76200-141#26195#26336
20K → HALF1247-35#26336#26371
HALF → 25K10758+49#26371#26322
25K → 30K203*37+166#26322#26156
30K → 20M9130+61#26156#26095
20M → 21M17102-85#26095#26180
21M → 35K4312+31#26180#26149
35K → 23M2871-43#26149#26192
23M → 24M4139+2#26192#26190
24M → 40K2538-13#26190#26203
40K → 25.2M1213-1#26203#26204
25.2M → FINISH1770-53#26204#26257
TOTALS1521*836+668

* 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