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BOSTON MARATHON 2026

Miwa Yamaguchi

Bib: 23118•F

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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 (F55-59)
#0 / 951
Top 37%
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
27:31
3.11 mi
Rank: #21973
Start → 5K
27:31 | 8:52/mi
10K
54:46
6.21 mi
Rank: #21881 (+92)
5K → 10K
27:15 | 8:47/mi
15K
1:22:10
9.32 mi
Rank: #21853 (+28)
10K → 15K
27:24 | 8:50/mi
20K
1:49:54
12.43 mi
Rank: #21743 (+110)
15K → 20K
27:44 | 8:56/mi
HALF
1:55:52
13.11 mi
Rank: #21738 (+5)
20K → HALF
5:58 | 8:46/mi
25K
2:17:31
15.53 mi
Rank: #21567 (+171)
HALF → 25K
21:39 | 8:56/mi
30K
2:45:34
18.64 mi
Rank: #21236 (+331)
25K → 30K
28:03 | 9:02/mi
20M
2:57:39
20.00 mi
Rank: #20995 (+241)
30K → 20M
12:05 | 8:54/mi
21M
3:06:51
21.00 mi
Rank: #20792 (+203)
20M → 21M
9:12 | 9:12/mi
35K
3:13:01
21.75 mi
Rank: #20643 (+149)
21M → 35K
6:10 | 8:15/mi
23M
3:23:22
23.00 mi
Rank: #20338 (+305)
35K → 23M
10:21 | 8:17/mi
24M
3:31:35
24.00 mi
Rank: #20146 (+192)
23M → 24M
8:13 | 8:13/mi
40K
3:39:08
24.85 mi
Rank: #20051 (+95)
24M → 40K
7:33 | 8:50/mi
25.2M
3:42:26
25.20 mi
Rank: #20017 (+34)
40K → 25.2M
3:18 | 9:35/mi
FINISH
3:50:58
26.22 mi
Rank: #19922 (+95)
25.2M → FINISH
8:32 | 8:23/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half⚖️ Balanced
via HALF
Distance13.11 mi
Time1:55:52
Pace8:51 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:55:06
Pace8:47 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:31:4827:318:5227:31
8:52
-
10K
6.21 mi11:59:0354:468:4927:15
8:47
-0:05
15K
9.32 mi12:26:271:22:108:4927:24
8:50
+0:03
20K
12.43 mi12:54:111:49:548:5127:44
8:56
+0:06
HALF
13.11 mi13:00:091:55:528:515:58
8:46
-0:10
25K
15.53 mi13:21:482:17:318:5221:39
8:56
+0:10
30K
18.64 mi13:49:512:45:348:5328:03
9:02
+0:06
20M
20.00 mi14:01:562:57:398:5312:05
8:54
-0:08
21M
21.00 mi14:11:083:06:518:549:12
9:12
+0:18
35K
21.75 mi14:17:183:13:018:536:10
8:15
-0:57
23M
23.00 mi14:27:393:23:228:5110:21
8:17
+0:02
24M
24.00 mi14:35:523:31:358:498:13
8:13
-0:04
40K
24.85 mi14:43:253:39:088:497:33
8:50
+0:37
25.2M
25.20 mi14:46:433:42:268:503:18
9:35
+0:45
FINISH
26.22 mi14:55:153:50:588:498:32
8:23
-1:12

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

8:13 /mi

Average Pace

8:49 /mi

Slowest Pace

9:35 /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

3:38:28

95% of race

Time at Steady Pace

12:30

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:49 /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 mi11:31:4827:318:5227:31
8:52
#21973
10K
6.21 mi11:59:0354:468:4927:15
8:47
#21881
15K
9.32 mi12:26:271:22:108:4927:24
8:50
#21853
20K
12.43 mi12:54:111:49:548:5127:44
8:56
#21743
HALF
13.11 mi13:00:091:55:528:515:58
8:46
#21738
25K
15.53 mi13:21:482:17:318:5221:39
8:56
#21567
30K
18.64 mi13:49:512:45:348:5328:03
9:02
#21236
20M
20.00 mi14:01:562:57:398:5312:05
8:54
#20995
21M
21.00 mi14:11:083:06:518:549:12
9:12
#20792
35K
21.75 mi14:17:183:13:018:536:10
8:15
#20643
23M
23.00 mi14:27:393:23:228:5110:21
8:17
#20338
24M
24.00 mi14:35:523:31:358:498:13
8:13
#20146
40K
24.85 mi14:43:253:39:088:497:33
8:50
#20051
25.2M
25.20 mi14:46:433:42:268:503:18
9:35
#20017
FINISH
26.22 mi14:55:153:50:588:498:32
8:23
#19922
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi219738672867221830(Top 75%)8553(Top 68%)8553(Top 899%)
10K6.21 mi3.10 mi21881+928603+698603+6921771(Top 75%)8529(Top 68%)8529(Top 897%)
15K9.32 mi3.11 mi21853+288590+138590+1321830(Top 75%)8553(Top 68%)8553(Top 899%)
20K12.43 mi3.11 mi21743+1108533+578533+5721587(Top 74%)8450(Top 67%)8450(Top 889%)
HALF13.11 mi0.68 mi21738+58525+88525+821597(Top 74%)8422(Top 67%)8422(Top 886%)
25K15.53 mi2.42 mi21567+1718447+788447+7820839(Top 72%)8081(Top 64%)8081(Top 850%)
30K18.64 mi3.11 mi21236+3318293+1548293+15419712(Top 68%)7598(Top 60%)7598(Top 799%)
20M20.00 mi1.36 mi20995+2418191+1028191+10218472(Top 64%)7022(Top 56%)7022(Top 738%)
21M21.00 mi1.00 mi20792+2038091+1008091+10017197(Top 59%)6387(Top 51%)6387(Top 672%)
35K21.75 mi0.75 mi20643+1498024+678024+6716162(Top 56%)5861(Top 47%)5861(Top 616%)
23M23.00 mi1.25 mi20338+3057879+1457879+14514320(Top 49%)4898(Top 39%)4898(Top 515%)
24M24.00 mi1.00 mi20146+1927800+797800+7915239(Top 53%)5482(Top 44%)5482(Top 576%)
40K24.85 mi0.85 mi20051+957773+277773+2717591(Top 61%)6837(Top 54%)6837(Top 719%)
25.2M25.20 mi0.35 mi20017+347765+87765+817725(Top 61%)6897(Top 55%)6897(Top 725%)
FINISH26.22 mi1.02 mi19922+957724+417724+4117505(Top 60%)6791(Top 54%)6791(Top 714%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21
+97ft-345ft

Overall

21830

Females

8553

F55-59

8553

5K→10K

3.1 - 6.2 mi

Top 75%
×5
+79ft-138ft

Overall

21771

Females

8529

F55-59

8529

10K→15K

6.2 - 9.3 mi

Top 75%
×3
+67ft-78ft

Overall

21830

Females

8553

F55-59

8553

15K→20K

9.3 - 12.4 mi

Top 74%
×5
+106ft-86ft

Overall

21587

Females

8450

F55-59

8450

20K→HALF

12.4 - 13.1 mi

Top 74%
×2
+19ft-37ft

Overall

21597

Females

8422

F55-59

8422

HALF→25K

13.1 - 15.5 mi

Top 72%
×4
+66ft-88ft

Overall

20839

Females

8081

F55-59

8081

25K→30K

15.5 - 18.6 mi

Top 68%
×9
+181ft-148ft

Overall

19712

Females

7598

F55-59

7598

30K→20M

18.6 - 20.0 mi

Top 64%
×5
+64ft-50ft

Overall

18472

Females

7022

F55-59

7022

20M→21M

20.0 - 21.0 mi

Top 59%
×8
+106ft-24ft

Overall

17197

Females

6387

F55-59

6387

21M→35K

21.0 - 21.8 mi

Top 56%
×7
+17ft-86ft

Overall

16162

Females

5861

F55-59

5861

35K→23M

21.8 - 23.0 mi

Top 49%
×5
+23ft-63ft

Overall

14320

Females

4898

F55-59

4898

23M→24M

23.0 - 24.0 mi

Top 53%
×6
+12ft-82ft

Overall

15239

Females

5482

F55-59

5482

24M→40K

24.0 - 24.9 mi

Top 61%
×1
+6ft-20ft

Overall

17591

Females

6837

F55-59

6837

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1
+13ft-16ft

Overall

17725

Females

6897

F55-59

6897

25.2M→FINISH

25.2 - 26.2 mi

Top 60%
×2
+22ft-21ft

Overall

17505

Females

6791

F55-59

6791

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2642*
Passed By
591
Net Change
+2051
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21973
5K → 10K292*200+92#21973#21881
10K → 15K179151+28#21881#21853
15K → 20K223*113+110#21853#21743
20K → HALF3126+5#21743#21738
HALF → 25K212*41+171#21738#21567
25K → 30K351*20+331#21567#21236
30K → 20M242*1+241#21236#20995
20M → 21M204*1+203#20995#20792
21M → 35K1490+149#20792#20643
35K → 23M306*1+305#20643#20338
23M → 24M1942+192#20338#20146
24M → 40K10712+95#20146#20051
40K → 25.2M4410+34#20051#20017
25.2M → FINISH10813+95#20017#19922
TOTALS2642*591+2051

* 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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing