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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Chiyo Shidara

Bib: 22126 •F •Age: N/A

CA

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Top 39%
Age Group (F60-64)
#0 / 782
Top 8%
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
25:34
3.11 mi
Rank: #18408
Start → 5K
25:34 | 8:14/mi
10K
50:19
6.21 mi
Rank: #17767 (+641)
5K → 10K
24:45 | 7:58/mi
15K
1:15:05
9.32 mi
Rank: #17475 (+292)
10K → 15K
24:46 | 7:59/mi
20K
1:41:03
12.43 mi
Rank: #17725 (-250)
15K → 20K
25:58 | 8:22/mi
HALF
1:46:26
13.11 mi
Rank: #17652 (+73)
20K → HALF
5:23 | 7:54/mi
25K
2:06:13
15.53 mi
Rank: #17459 (+193)
HALF → 25K
19:47 | 8:10/mi
30K
2:32:53
18.64 mi
Rank: #17394 (+65)
25K → 30K
26:40 | 8:35/mi
20M
2:44:21
20.00 mi
Rank: #17254 (+140)
30K → 20M
11:28 | 8:27/mi
21M
2:53:14
21.00 mi
Rank: #17130 (+124)
20M → 21M
8:53 | 8:53/mi
35K
3:00:57
21.75 mi
Rank: #17532 (-402)
21M → 35K
7:43 | 10:19/mi
23M
3:10:58
23.00 mi
Rank: #17234 (+298)
35K → 23M
10:01 | 8:01/mi
24M
3:19:39
24.00 mi
Rank: #17237 (-3)
23M → 24M
8:41 | 8:41/mi
40K
3:28:44
24.85 mi
Rank: #17630 (-393)
24M → 40K
9:05 | 10:38/mi
25.2M
3:31:58
25.20 mi
Rank: #17589 (+41)
40K → 25.2M
3:14 | 9:23/mi
FINISH
3:40:05
26.22 mi
Rank: #17490 (+99)
25.2M → FINISH
8:07 | 7:58/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
Time1:46:26
Pace8:08 /mi
2nd Half
Distance13.11 mi
Time1:53:39
Pace8:41 /mi
📊Positive Split: 6.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:27:2825:348:1425:34
8:14
-
10K
6.21 mi11:52:1350:198:0624:45
7:58
-0:16
15K
9.32 mi12:16:591:15:058:0424:46
7:59
+0:01
20K
12.43 mi12:42:571:41:038:0825:58
8:22
+0:23
HALF
13.11 mi12:48:201:46:268:085:23
7:54
-0:28
25K
15.53 mi13:08:072:06:138:0819:47
8:10
+0:16
30K
18.64 mi13:34:472:32:538:1326:40
8:35
+0:25
20M
20.00 mi13:46:152:44:218:1411:28
8:27
-0:08
21M
21.00 mi13:55:082:53:148:158:53
8:53
+0:26
35K
21.75 mi14:02:513:00:578:207:43
10:19
+1:26
23M
23.00 mi14:12:523:10:588:1910:01
8:01
-2:18
24M
24.00 mi14:21:333:19:398:208:41
8:41
+0:40
40K
24.85 mi14:30:383:28:448:249:05
10:38
+1:57
25.2M
25.20 mi14:33:523:31:588:253:14
9:23
-1:15
FINISH
26.22 mi14:41:593:40:058:258:07
7:58
-1:25

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

7:54 /mi

Average Pace

8:24 /mi

Slowest Pace

10:38 /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

5:23

2% of race

Time at Steady Pace

3:05:47

84% of race

Time at Slower Pace

28:55

13% of race

Average Pace: 8:24 /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 mi11:27:2825:348:1425:34
8:14
#18408
10K
6.21 mi11:52:1350:198:0624:45
7:58
#17767
15K
9.32 mi12:16:591:15:058:0424:46
7:59
#17475
20K
12.43 mi12:42:571:41:038:0825:58
8:22
#17725
HALF
13.11 mi12:48:201:46:268:085:23
7:54
#17652
25K
15.53 mi13:08:072:06:138:0819:47
8:10
#17459
30K
18.64 mi13:34:472:32:538:1326:40
8:35
#17394
20M
20.00 mi13:46:152:44:218:1411:28
8:27
#17254
21M
21.00 mi13:55:082:53:148:158:53
8:53
#17130
35K
21.75 mi14:02:513:00:578:207:43
10:19
#17532
23M
23.00 mi14:12:523:10:588:1910:01
8:01
#17234
24M
24.00 mi14:21:333:19:398:208:41
8:41
#17237
40K
24.85 mi14:30:383:28:448:249:05
10:38
#17630
25.2M
25.20 mi14:33:523:31:588:253:14
9:23
#17589
FINISH
26.22 mi14:41:593:40:058:258:07
7:58
#17490
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi184086746674616808(Top 58%)5796(Top 46%)5796(Top 741%)
10K6.21 mi3.10 mi17767+6416353+3936353+39316993(Top 59%)5908(Top 47%)5908(Top 755%)
15K9.32 mi3.11 mi17475+2926206+1476206+14716808(Top 58%)5796(Top 46%)5796(Top 741%)
20K12.43 mi3.11 mi17725-2506344-1386344-13818458(Top 64%)6772(Top 54%)6772(Top 866%)
HALF13.11 mi0.68 mi17652+736299+456299+4516423(Top 57%)5611(Top 45%)5611(Top 718%)
25K15.53 mi2.42 mi17459+1936187+1126187+11216551(Top 57%)5745(Top 46%)5745(Top 735%)
30K18.64 mi3.11 mi17394+656185+26185+217401(Top 60%)6337(Top 50%)6337(Top 810%)
20M20.00 mi1.36 mi17254+1406116+696116+6915887(Top 55%)5585(Top 44%)5585(Top 714%)
21M21.00 mi1.00 mi17130+1246070+466070+4615516(Top 53%)5432(Top 43%)5432(Top 695%)
35K21.75 mi0.75 mi17532-4026316-2466316-24623920(Top 82%)9942(Top 79%)9942(Top 1271%)
23M23.00 mi1.25 mi17234+2986173+1436173+14312527(Top 43%)3894(Top 31%)3894(Top 498%)
24M24.00 mi1.00 mi17237-36198-256198-2517929(Top 62%)6952(Top 55%)6952(Top 889%)
40K24.85 mi0.85 mi17630-3936435-2376435-23723511(Top 81%)9873(Top 78%)9873(Top 1263%)
25.2M25.20 mi0.35 mi17589+416420+156420+1516782(Top 58%)6388(Top 51%)6388(Top 817%)
FINISH26.22 mi1.02 mi17490+996389+316389+3114983(Top 52%)5435(Top 43%)5435(Top 695%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21
+97ft-345ft

Overall

16808

Females

5796

F60-64

5796

5K→10K

3.1 - 6.2 mi

Top 59%
×5
+79ft-138ft

Overall

16993

Females

5908

F60-64

5908

10K→15K

6.2 - 9.3 mi

Top 58%
×3
+67ft-78ft

Overall

16808

Females

5796

F60-64

5796

15K→20K

9.3 - 12.4 mi

Top 64%
×5
+106ft-86ft

Overall

18458

Females

6772

F60-64

6772

20K→HALF

12.4 - 13.1 mi

Top 57%
×2
+19ft-37ft

Overall

16423

Females

5611

F60-64

5611

HALF→25K

13.1 - 15.5 mi

Top 57%
×4
+66ft-88ft

Overall

16551

Females

5745

F60-64

5745

25K→30K

15.5 - 18.6 mi

Top 60%
×9
+181ft-148ft

Overall

17401

Females

6337

F60-64

6337

30K→20M

18.6 - 20.0 mi

Top 55%
×5
+64ft-50ft

Overall

15887

Females

5585

F60-64

5585

20M→21M

20.0 - 21.0 mi

Top 53%
×8
+106ft-24ft

Overall

15516

Females

5432

F60-64

5432

21M→35K

21.0 - 21.8 mi

Top 82%
×7
+17ft-86ft

Overall

23920

Females

9942

F60-64

9942

35K→23M

21.8 - 23.0 mi

Top 43%
×5
+23ft-63ft

Overall

12527

Females

3894

F60-64

3894

23M→24M

23.0 - 24.0 mi

Top 62%
×6
+12ft-82ft

Overall

17929

Females

6952

F60-64

6952

24M→40K

24.0 - 24.9 mi

Top 81%
×1
+6ft-20ft

Overall

23511

Females

9873

F60-64

9873

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1
+13ft-16ft

Overall

16782

Females

6388

F60-64

6388

25.2M→FINISH

25.2 - 26.2 mi

Top 52%
×2
+22ft-21ft

Overall

14983

Females

5435

F60-64

5435

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2621*
Passed By
1142
Net Change
+918
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18408
5K → 10K723*82+641#18408#17767
10K → 15K363*71+292#17767#17475
15K → 20K97200-250#17475#17725
20K → HALF796+73#17725#17652
HALF → 25K239*46+193#17652#17459
25K → 30K219*154+65#17459#17394
30K → 20M17131+140#17394#17254
20M → 21M15733+124#17254#17130
21M → 35K10200-402#17130#17532
35K → 23M302*4+298#17532#17234
23M → 24M7780-3#17234#17237
24M → 40K9200-393#17237#17630
40K → 25.2M5312+41#17630#17589
25.2M → FINISH12223+99#17589#17490
TOTALS2621*1142+918

* 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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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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