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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Samantha Kobayashi

Bib: 27873 β€’F β€’Age: N/A

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0:00
0:00
/ mi
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Top 41%
Age Group (F18-39)
#0 / 5716
Race Day Weather
51Β°/41Β°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
25:05
3.11 mi
Rank: #17440
Start β†’ 5K
25:05 | 8:05/mi
10K
47:39
6.21 mi
Rank: #14335 (+3105)
5K β†’ 10K
22:34 | 7:16/mi
15K
1:10:12
9.32 mi
Rank: #13075 (+1260)
10K β†’ 15K
22:33 | 7:16/mi
20K
1:33:24
12.43 mi
Rank: #12737 (+338)
15K β†’ 20K
23:12 | 7:29/mi
HALF
1:38:27
13.11 mi
Rank: #12699 (+38)
20K β†’ HALF
5:03 | 7:25/mi
25K
1:57:22
15.53 mi
Rank: #12889 (-190)
HALF β†’ 25K
18:55 | 7:49/mi
30K
2:22:34
18.64 mi
Rank: #13112 (-223)
25K β†’ 30K
25:12 | 8:07/mi
20M
2:34:36
20.00 mi
Rank: #13517 (-405)
30K β†’ 20M
12:02 | 8:52/mi
21M
2:43:51
21.00 mi
Rank: #13761 (-244)
20M β†’ 21M
9:15 | 9:15/mi
35K
2:50:12
21.75 mi
Rank: #13908 (-147)
21M β†’ 35K
6:21 | 8:30/mi
23M
3:01:55
23.00 mi
Rank: #14385 (-477)
35K β†’ 23M
11:43 | 9:22/mi
24M
3:10:54
24.00 mi
Rank: #14689 (-304)
23M β†’ 24M
8:59 | 8:59/mi
40K
3:19:05
24.85 mi
Rank: #15012 (-323)
24M β†’ 40K
8:11 | 9:35/mi
25.2M
3:22:34
25.20 mi
Rank: #15102 (-90)
40K β†’ 25.2M
3:29 | 10:07/mi
FINISH
3:31:45
26.22 mi
Rank: #15430 (-328)
25.2M β†’ FINISH
9:11 | 9:01/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:38:27
Pace7:31 /mi
2nd Half
Distance13.11 mi
Time1:53:18
Pace8:39 /mi
πŸ“ŠPositive Split: 15.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:3425:058:0525:05
8:05
-
10K
6.21 mi12:10:0847:397:4122:34
7:16
-0:49
15K
9.32 mi12:32:411:10:127:3222:33
7:16
0:00
20K
12.43 mi12:55:531:33:247:3123:12
7:29
+0:13
HALF
13.11 mi13:00:561:38:277:315:03
7:25
-0:04
25K
15.53 mi13:19:511:57:227:3418:55
7:49
+0:24
30K
18.64 mi13:45:032:22:347:3925:12
8:07
+0:18
20M
20.00 mi13:57:052:34:367:4412:02
8:52
+0:45
21M
21.00 mi14:06:202:43:517:499:15
9:15
+0:23
35K
21.75 mi14:12:412:50:127:506:21
8:30
-0:45
23M
23.00 mi14:24:243:01:557:5511:43
9:22
+0:52
24M
24.00 mi14:33:233:10:547:588:59
8:59
-0:23
40K
24.85 mi14:41:343:19:058:018:11
9:35
+0:36
25.2M
25.20 mi14:45:033:22:348:033:29
10:07
+0:32
FINISH
26.22 mi14:54:143:31:458:059:11
9:01
-1:06

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

πŸ“ˆPace 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

7:16 /mi

Average Pace

8:05 /mi

Slowest Pace

10:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

πŸ“ŠSegments

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

1:32:17

44% of race

Time at Steady Pace

1:08:40

32% of race

Time at Slower Pace

50:48

24% of race

Average Pace: 8:05 /mi

Loading chart...
Faster pace (< avg)
Steady pace (β‰ˆ 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 mi11:47:3425:058:0525:05
8:05
#17440
10K
6.21 mi12:10:0847:397:4122:34
7:16
#14335
15K
9.32 mi12:32:411:10:127:3222:33
7:16
#13075
20K
12.43 mi12:55:531:33:247:3123:12
7:29
#12737
HALF
13.11 mi13:00:561:38:277:315:03
7:25
#12699
25K
15.53 mi13:19:511:57:227:3418:55
7:49
#12889
30K
18.64 mi13:45:032:22:347:3925:12
8:07
#13112
20M
20.00 mi13:57:052:34:367:4412:02
8:52
#13517
21M
21.00 mi14:06:202:43:517:499:15
9:15
#13761
35K
21.75 mi14:12:412:50:127:506:21
8:30
#13908
23M
23.00 mi14:24:243:01:557:5511:43
9:22
#14385
24M
24.00 mi14:33:233:10:547:588:59
8:59
#14689
40K
24.85 mi14:41:343:19:058:018:11
9:35
#15012
25.2M
25.20 mi14:45:033:22:348:033:29
10:07
#15102
FINISH
26.22 mi14:54:143:31:458:059:11
9:01
#15430
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi174406176617610669(Top 37%)2309(Top 18%)2309(Top 40%)
10K6.21 mi3.10 mi14335+31054297+18794297+187910848(Top 37%)2345(Top 19%)2345(Top 41%)
15K9.32 mi3.11 mi13075+12603584+7133584+71310669(Top 37%)2309(Top 18%)2309(Top 40%)
20K12.43 mi3.11 mi12737+3383413+1713413+17111699(Top 40%)2946(Top 23%)2946(Top 52%)
HALF13.11 mi0.68 mi12699+383390+233390+2312320(Top 42%)3225(Top 26%)3225(Top 56%)
25K15.53 mi2.42 mi12889-1903535-1453535-14513874(Top 48%)4228(Top 34%)4228(Top 74%)
30K18.64 mi3.11 mi13112-2233713-1783713-17814296(Top 49%)4577(Top 36%)4577(Top 80%)
20M20.00 mi1.36 mi13517-4053961-2483961-24818261(Top 63%)6909(Top 55%)6909(Top 121%)
21M21.00 mi1.00 mi13761-2444116-1554116-15517411(Top 60%)6471(Top 51%)6471(Top 113%)
35K21.75 mi0.75 mi13908-1474228-1124228-11217521(Top 60%)6628(Top 53%)6628(Top 116%)
23M23.00 mi1.25 mi14385-4774529-3014529-30120094(Top 69%)8019(Top 64%)8019(Top 140%)
24M24.00 mi1.00 mi14689-3044740-2114740-21119395(Top 67%)7717(Top 61%)7717(Top 135%)
40K24.85 mi0.85 mi15012-3234940-2004940-20020643(Top 71%)8394(Top 67%)8394(Top 147%)
25.2M25.20 mi0.35 mi15102-905001-615001-6119763(Top 68%)7939(Top 63%)7939(Top 139%)
FINISH26.22 mi1.02 mi15430-3285214-2135214-21320569(Top 71%)8350(Top 66%)8350(Top 146%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
Γ—21
+97ft-345ft

Overall

10669

Females

2309

F18-39

2309

5K→10K

3.1 - 6.2 mi

Top 37%
Γ—5
+79ft-138ft

Overall

10848

Females

2345

F18-39

2345

10K→15K

6.2 - 9.3 mi

Top 37%
Γ—3
+67ft-78ft

Overall

10669

Females

2309

F18-39

2309

15K→20K

9.3 - 12.4 mi

Top 40%
Γ—5
+106ft-86ft

Overall

11699

Females

2946

F18-39

2946

20K→HALF

12.4 - 13.1 mi

Top 42%
Γ—2
+19ft-37ft

Overall

12320

Females

3225

F18-39

3225

HALF→25K

13.1 - 15.5 mi

Top 48%
Γ—4
+66ft-88ft

Overall

13874

Females

4228

F18-39

4228

25K→30K

15.5 - 18.6 mi

Top 49%
Γ—9
+181ft-148ft

Overall

14296

Females

4577

F18-39

4577

30K→20M

18.6 - 20.0 mi

Top 63%
Γ—5
+64ft-50ft

Overall

18261

Females

6909

F18-39

6909

20M→21M

20.0 - 21.0 mi

Top 60%
Γ—8
+106ft-24ft

Overall

17411

Females

6471

F18-39

6471

21M→35K

21.0 - 21.8 mi

Top 60%
Γ—7
+17ft-86ft

Overall

17521

Females

6628

F18-39

6628

35K→23M

21.8 - 23.0 mi

Top 69%
Γ—5
+23ft-63ft

Overall

20094

Females

8019

F18-39

8019

23M→24M

23.0 - 24.0 mi

Top 67%
Γ—6
+12ft-82ft

Overall

19395

Females

7717

F18-39

7717

24M→40K

24.0 - 24.9 mi

Top 71%
Γ—1
+6ft-20ft

Overall

20643

Females

8394

F18-39

8394

40K→25.2M

24.9 - 25.2 mi

Top 68%
Γ—1
+13ft-16ft

Overall

19763

Females

7939

F18-39

7939

25.2M→FINISH

25.2 - 26.2 mi

Top 71%
Γ—2
+22ft-21ft

Overall

20569

Females

8350

F18-39

8350

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
5175*
Passed By
1928
Net Change
+2010
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#17440
5K β†’ 10K3106*1+3105#17440#14335
10K β†’ 15K1263*3+1260#14335#13075
15K β†’ 20K361*23+338#13075#12737
20K β†’ HALF5921+38#12737#12699
HALF β†’ 25K78200-190#12699#12889
25K β†’ 30K119200-223#12889#13112
30K β†’ 20M37200-405#13112#13517
20M β†’ 21M32200-244#13517#13761
21M β†’ 35K31178-147#13761#13908
35K β†’ 23M20200-477#13908#14385
23M β†’ 24M28200-304#14385#14689
24M β†’ 40K18200-323#14689#15012
40K β†’ 25.2M12102-90#15012#15102
25.2M β†’ FINISH11200-328#15102#15430
TOTALS5175*1928+2010

* Includes athletes who did not complete a segment (DNF/DNQ).

πŸ“Š

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

πŸ“ˆPosition Graph

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🎨Heatmap Timeline

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πŸ”„Passing Circle

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🌊Position Flow

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πŸƒRace Lanes

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