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BOSTON MARATHON 2026

Kaeko Sakamoto

Bib: 25460•F

CA

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Age Group (F65-69)
#0 / 273
Top 27%
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
27:38
3.11 mi
Rank: #22160
Start → 5K
27:38 | 8:54/mi
10K
55:14
6.21 mi
Rank: #22243 (-83)
5K → 10K
27:36 | 8:54/mi
15K
1:22:41
9.32 mi
Rank: #22120 (+123)
10K → 15K
27:27 | 8:51/mi
20K
1:51:00
12.43 mi
Rank: #22185 (-65)
15K → 20K
28:19 | 9:07/mi
HALF
1:57:04
13.11 mi
Rank: #22185
20K → HALF
6:04 | 8:55/mi
25K
2:19:34
15.53 mi
Rank: #22194 (-9)
HALF → 25K
22:30 | 9:17/mi
30K
2:50:08
18.64 mi
Rank: #22314 (-120)
25K → 30K
30:34 | 9:51/mi
20M
3:04:40
20.00 mi
Rank: #22565 (-251)
30K → 20M
14:32 | 10:42/mi
21M
3:16:06
21.00 mi
Rank: #22652 (-87)
20M → 21M
11:26 | 11:26/mi
35K
3:24:08
21.75 mi
Rank: #22752 (-100)
21M → 35K
8:02 | 10:45/mi
23M
3:37:37
23.00 mi
Rank: #22842 (-90)
35K → 23M
13:29 | 10:47/mi
24M
3:47:32
24.00 mi
Rank: #22824 (+18)
23M → 24M
9:55 | 9:55/mi
40K
3:57:22
24.85 mi
Rank: #22928 (-104)
24M → 40K
9:50 | 11:31/mi
25.2M
4:01:27
25.20 mi
Rank: #22948 (-20)
40K → 25.2M
4:05 | 11:51/mi
FINISH
4:12:22
26.22 mi
Rank: #23050 (-102)
25.2M → FINISH
10:55 | 10:43/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:57:04
Pace8:56 /mi
2nd Half
Distance13.11 mi
Time2:15:18
Pace10:20 /mi
📊Positive Split: 15.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:33:3127:388:5427:38
8:54
-
10K
6.21 mi12:01:0755:148:5427:36
8:54
0:00
15K
9.32 mi12:28:341:22:418:5327:27
8:51
-0:03
20K
12.43 mi12:56:531:51:008:5628:19
9:07
+0:16
HALF
13.11 mi13:02:571:57:048:566:04
8:55
-0:12
25K
15.53 mi13:25:272:19:349:0022:30
9:17
+0:22
30K
18.64 mi13:56:012:50:089:0830:34
9:51
+0:34
20M
20.00 mi14:10:333:04:409:1514:32
10:42
+0:51
21M
21.00 mi14:21:593:16:069:2111:26
11:26
+0:44
35K
21.75 mi14:30:013:24:089:248:02
10:45
-0:41
23M
23.00 mi14:43:303:37:379:2813:29
10:47
+0:02
24M
24.00 mi14:53:253:47:329:299:55
9:55
-0:52
40K
24.85 mi15:03:153:57:229:349:50
11:31
+1:36
25.2M
25.20 mi15:07:204:01:279:354:05
11:51
+0:20
FINISH
26.22 mi15:18:154:12:229:3810:55
10:43
-1:08

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

8:51 /mi

Average Pace

9:38 /mi

Slowest Pace

11:51 /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

2:19:34

55% of race

Time at Steady Pace

40:29

16% of race

Time at Slower Pace

1:12:19

29% of race

Average Pace: 9:37 /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 mi11:33:3127:388:5427:38
8:54
#22160
10K
6.21 mi12:01:0755:148:5427:36
8:54
#22243
15K
9.32 mi12:28:341:22:418:5327:27
8:51
#22120
20K
12.43 mi12:56:531:51:008:5628:19
9:07
#22185
HALF
13.11 mi13:02:571:57:048:566:04
8:55
#22185
25K
15.53 mi13:25:272:19:349:0022:30
9:17
#22194
30K
18.64 mi13:56:012:50:089:0830:34
9:51
#22314
20M
20.00 mi14:10:333:04:409:1514:32
10:42
#22565
21M
21.00 mi14:21:593:16:069:2111:26
11:26
#22652
35K
21.75 mi14:30:013:24:089:248:02
10:45
#22752
23M
23.00 mi14:43:303:37:379:2813:29
10:47
#22842
24M
24.00 mi14:53:253:47:329:299:55
9:55
#22824
40K
24.85 mi15:03:153:57:229:349:50
11:31
#22928
25.2M
25.20 mi15:07:204:01:279:354:05
11:51
#22948
FINISH
26.22 mi15:18:154:12:229:3810:55
10:43
#23050
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF65-69Seg. OverallSeg. FemalesSeg. F65-69
5K3.11 mi3.11 mi221608771877121919(Top 76%)8602(Top 68%)8602(Top 3151%)
10K6.21 mi3.10 mi22243-838787-168787-1622340(Top 77%)8822(Top 70%)8822(Top 3232%)
15K9.32 mi3.11 mi22120+1238719+688719+6821919(Top 76%)8602(Top 68%)8602(Top 3151%)
20K12.43 mi3.11 mi22185-658751-328751-3222428(Top 77%)8882(Top 71%)8882(Top 3253%)
HALF13.11 mi0.68 mi221858749+28749+222340(Top 77%)8832(Top 70%)8832(Top 3235%)
25K15.53 mi2.42 mi22194-98756-78756-722340(Top 77%)8854(Top 70%)8854(Top 3243%)
30K18.64 mi3.11 mi22314-1208842-868842-8622685(Top 78%)9116(Top 72%)9116(Top 3339%)
20M20.00 mi1.36 mi22565-2518998-1568998-15624293(Top 84%)10065(Top 80%)10065(Top 3687%)
21M21.00 mi1.00 mi22652-879058-609058-6024051(Top 83%)10004(Top 80%)10004(Top 3664%)
35K21.75 mi0.75 mi22752-1009122-649122-6424772(Top 85%)10396(Top 83%)10396(Top 3808%)
23M23.00 mi1.25 mi22842-909185-639185-6324000(Top 83%)10059(Top 80%)10059(Top 3685%)
24M24.00 mi1.00 mi22824+189189-49189-422584(Top 78%)9333(Top 74%)9333(Top 3419%)
40K24.85 mi0.85 mi22928-1049246-579246-5725111(Top 87%)10682(Top 85%)10682(Top 3913%)
25.2M25.20 mi0.35 mi22948-209261-159261-1524174(Top 83%)10217(Top 81%)10217(Top 3742%)
FINISH26.22 mi1.02 mi23050-1029318-579318-5725542(Top 88%)10906(Top 87%)10906(Top 3995%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21
+97ft-345ft

Overall

21919

Females

8602

F65-69

8602

5K→10K

3.1 - 6.2 mi

Top 77%
×5
+79ft-138ft

Overall

22340

Females

8822

F65-69

8822

10K→15K

6.2 - 9.3 mi

Top 76%
×3
+67ft-78ft

Overall

21919

Females

8602

F65-69

8602

15K→20K

9.3 - 12.4 mi

Top 77%
×5
+106ft-86ft

Overall

22428

Females

8882

F65-69

8882

20K→HALF

12.4 - 13.1 mi

Top 77%
×2
+19ft-37ft

Overall

22340

Females

8832

F65-69

8832

HALF→25K

13.1 - 15.5 mi

Top 77%
×4
+66ft-88ft

Overall

22340

Females

8854

F65-69

8854

25K→30K

15.5 - 18.6 mi

Top 78%
×9
+181ft-148ft

Overall

22685

Females

9116

F65-69

9116

30K→20M

18.6 - 20.0 mi

Top 84%
×5
+64ft-50ft

Overall

24293

Females

10065

F65-69

10065

20M→21M

20.0 - 21.0 mi

Top 83%
×8
+106ft-24ft

Overall

24051

Females

10004

F65-69

10004

21M→35K

21.0 - 21.8 mi

Top 85%
×7
+17ft-86ft

Overall

24772

Females

10396

F65-69

10396

35K→23M

21.8 - 23.0 mi

Top 83%
×5
+23ft-63ft

Overall

24000

Females

10059

F65-69

10059

23M→24M

23.0 - 24.0 mi

Top 78%
×6
+12ft-82ft

Overall

22584

Females

9333

F65-69

9333

24M→40K

24.0 - 24.9 mi

Top 87%
×1
+6ft-20ft

Overall

25111

Females

10682

F65-69

10682

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1
+13ft-16ft

Overall

24174

Females

10217

F65-69

10217

25.2M→FINISH

25.2 - 26.2 mi

Top 88%
×2
+22ft-21ft

Overall

25542

Females

10906

F65-69

10906

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1123
Passed By
2013
Net Change
-890
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22160
5K → 10K226309-83#22160#22243
10K → 15K244121+123#22243#22120
15K → 20K139204-65#22120#22185
20K → HALF30300#22185#22185
HALF → 25K116125-9#22185#22194
25K → 30K135255-120#22194#22314
30K → 20M34285-251#22314#22565
20M → 21M40127-87#22565#22652
21M → 35K16116-100#22652#22752
35K → 23M36126-90#22752#22842
23M → 24M5335+18#22842#22824
24M → 40K22126-104#22824#22928
40K → 25.2M1737-20#22928#22948
25.2M → FINISH15117-102#22948#23050
TOTALS11232013-890
📊

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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing