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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Chizuko Matsufuji

Bib: 23959 β€’F β€’Age: N/A

QC

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
Age Group (F55-59)
#0 / 951
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
30:33
3.11 mi
Rank: #25484
Start β†’ 5K
30:33 | 9:50/mi
10K
59:58
6.21 mi
Rank: #24956 (+528)
5K β†’ 10K
29:25 | 9:29/mi
15K
1:31:59
9.32 mi
Rank: #25514 (-558)
10K β†’ 15K
32:01 | 10:19/mi
20K
2:01:46
12.43 mi
Rank: #25112 (+402)
15K β†’ 20K
29:47 | 9:36/mi
HALF
2:08:12
13.11 mi
Rank: #25058 (+54)
20K β†’ HALF
6:26 | 9:27/mi
25K
2:32:22
15.53 mi
Rank: #24933 (+125)
HALF β†’ 25K
24:10 | 9:58/mi
30K
3:03:41
18.64 mi
Rank: #24639 (+294)
25K β†’ 30K
31:19 | 10:05/mi
20M
3:17:18
20.00 mi
Rank: #24485 (+154)
30K β†’ 20M
13:37 | 10:02/mi
21M
3:27:49
21.00 mi
Rank: #24334 (+151)
20M β†’ 21M
10:31 | 10:31/mi
35K
3:35:25
21.75 mi
Rank: #24312 (+22)
21M β†’ 35K
7:36 | 10:10/mi
23M
3:48:30
23.00 mi
Rank: #24232 (+80)
35K β†’ 23M
13:05 | 10:28/mi
24M
3:58:55
24.00 mi
Rank: #24201 (+31)
23M β†’ 24M
10:25 | 10:25/mi
40K
4:07:45
24.85 mi
Rank: #24134 (+67)
24M β†’ 40K
8:50 | 10:20/mi
25.2M
4:11:34
25.20 mi
Rank: #24106 (+28)
40K β†’ 25.2M
3:49 | 11:05/mi
FINISH
4:21:37
26.22 mi
Rank: #24086 (+20)
25.2M β†’ FINISH
10:03 | 9:52/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
Time2:08:12
Pace9:47 /mi
2nd Half
Distance13.11 mi
Time2:13:25
Pace10:11 /mi
πŸ“ŠPositive Split: 4.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:2730:339:5030:33
9:50
-
10K
6.21 mi12:21:5259:589:4029:25
9:29
-0:21
15K
9.32 mi12:53:531:31:599:5332:01
10:19
+0:50
20K
12.43 mi13:23:402:01:469:4829:47
9:36
-0:43
HALF
13.11 mi13:30:062:08:129:476:26
9:27
-0:09
25K
15.53 mi13:54:162:32:229:4924:10
9:58
+0:31
30K
18.64 mi14:25:353:03:419:5231:19
10:05
+0:07
20M
20.00 mi14:39:123:17:189:5213:37
10:02
-0:03
21M
21.00 mi14:49:433:27:499:5410:31
10:31
+0:29
35K
21.75 mi14:57:193:35:259:557:36
10:10
-0:21
23M
23.00 mi15:10:243:48:309:5713:05
10:28
+0:18
24M
24.00 mi15:20:493:58:559:5810:25
10:25
-0:03
40K
24.85 mi15:29:394:07:459:598:50
10:20
-0:05
25.2M
25.20 mi15:33:284:11:349:593:49
11:05
+0:45
FINISH
26.22 mi15:43:314:21:3710:0010:03
9:52
-1:13

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

9:27 /mi

Average Pace

9:59 /mi

Slowest Pace

11:05 /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

3:43:47

86% of race

Time at Steady Pace

37:50

14% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:59 /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 mi11:52:2730:339:5030:33
9:50
#25484
10K
6.21 mi12:21:5259:589:4029:25
9:29
#24956
15K
9.32 mi12:53:531:31:599:5332:01
10:19
#25514
20K
12.43 mi13:23:402:01:469:4829:47
9:36
#25112
HALF
13.11 mi13:30:062:08:129:476:26
9:27
#25058
25K
15.53 mi13:54:162:32:229:4924:10
9:58
#24933
30K
18.64 mi14:25:353:03:419:5231:19
10:05
#24639
20M
20.00 mi14:39:123:17:189:5213:37
10:02
#24485
21M
21.00 mi14:49:433:27:499:5410:31
10:31
#24334
35K
21.75 mi14:57:193:35:259:557:36
10:10
#24312
23M
23.00 mi15:10:243:48:309:5713:05
10:28
#24232
24M
24.00 mi15:20:493:58:559:5810:25
10:25
#24201
40K
24.85 mi15:29:394:07:459:598:50
10:20
#24134
25.2M
25.20 mi15:33:284:11:349:593:49
11:05
#24106
FINISH
26.22 mi15:43:314:21:3710:0010:03
9:52
#24086
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 mi25484104401044026336(Top 91%)10923(Top 87%)10923(Top 1149%)
10K6.21 mi3.10 mi24956+52810152+28810152+28824493(Top 84%)9912(Top 79%)9912(Top 1042%)
15K9.32 mi3.11 mi25514-55810459-30710459-30726336(Top 91%)10923(Top 87%)10923(Top 1149%)
20K12.43 mi3.11 mi25112+40210251+20810251+20824014(Top 83%)9685(Top 77%)9685(Top 1018%)
HALF13.11 mi0.68 mi25058+5410219+3210219+3224236(Top 84%)9811(Top 78%)9811(Top 1032%)
25K15.53 mi2.42 mi24933+12510148+7110148+7124229(Top 83%)9834(Top 78%)9834(Top 1034%)
30K18.64 mi3.11 mi24639+29410026+12210026+12223340(Top 80%)9476(Top 75%)9476(Top 996%)
20M20.00 mi1.36 mi24485+1549966+609966+6022664(Top 78%)9195(Top 73%)9195(Top 967%)
21M21.00 mi1.00 mi24334+1519898+689898+6822029(Top 76%)8910(Top 71%)8910(Top 937%)
35K21.75 mi0.75 mi24312+229897+19897+123575(Top 81%)9751(Top 78%)9751(Top 1025%)
23M23.00 mi1.25 mi24232+809879+189879+1823291(Top 80%)9667(Top 77%)9667(Top 1017%)
24M24.00 mi1.00 mi24201+319880-19880-123914(Top 82%)10031(Top 80%)10031(Top 1055%)
40K24.85 mi0.85 mi24134+679859+219859+2122818(Top 79%)9516(Top 76%)9516(Top 1001%)
25.2M25.20 mi0.35 mi24106+289852+79852+722582(Top 78%)9389(Top 75%)9389(Top 987%)
FINISH26.22 mi1.02 mi24086+209864-129864-1223491(Top 81%)9869(Top 78%)9869(Top 1038%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 91%
Γ—21
+97ft-345ft

Overall

26336

Females

10923

F55-59

10923

5K→10K

3.1 - 6.2 mi

Top 84%
Γ—5
+79ft-138ft

Overall

24493

Females

9912

F55-59

9912

10K→15K

6.2 - 9.3 mi

Top 91%
Γ—3
+67ft-78ft

Overall

26336

Females

10923

F55-59

10923

15K→20K

9.3 - 12.4 mi

Top 83%
Γ—5
+106ft-86ft

Overall

24014

Females

9685

F55-59

9685

20K→HALF

12.4 - 13.1 mi

Top 84%
Γ—2
+19ft-37ft

Overall

24236

Females

9811

F55-59

9811

HALF→25K

13.1 - 15.5 mi

Top 83%
Γ—4
+66ft-88ft

Overall

24229

Females

9834

F55-59

9834

25K→30K

15.5 - 18.6 mi

Top 80%
Γ—9
+181ft-148ft

Overall

23340

Females

9476

F55-59

9476

30K→20M

18.6 - 20.0 mi

Top 78%
Γ—5
+64ft-50ft

Overall

22664

Females

9195

F55-59

9195

20M→21M

20.0 - 21.0 mi

Top 76%
Γ—8
+106ft-24ft

Overall

22029

Females

8910

F55-59

8910

21M→35K

21.0 - 21.8 mi

Top 81%
Γ—7
+17ft-86ft

Overall

23575

Females

9751

F55-59

9751

35K→23M

21.8 - 23.0 mi

Top 80%
Γ—5
+23ft-63ft

Overall

23291

Females

9667

F55-59

9667

23M→24M

23.0 - 24.0 mi

Top 82%
Γ—6
+12ft-82ft

Overall

23914

Females

10031

F55-59

10031

24M→40K

24.0 - 24.9 mi

Top 79%
Γ—1
+6ft-20ft

Overall

22818

Females

9516

F55-59

9516

40K→25.2M

24.9 - 25.2 mi

Top 78%
Γ—1
+13ft-16ft

Overall

22582

Females

9389

F55-59

9389

25.2M→FINISH

25.2 - 26.2 mi

Top 81%
Γ—2
+22ft-21ft

Overall

23491

Females

9869

F55-59

9869

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2210*
Passed By
433
Net Change
+1398
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#25484
5K β†’ 10K573*45+528#25484#24956
10K β†’ 15K21200-558#24956#25514
15K β†’ 20K410*8+402#25514#25112
20K β†’ HALF595+54#25112#25058
HALF β†’ 25K15833+125#25058#24933
25K β†’ 30K306*12+294#24933#24639
30K β†’ 20M1584+154#24639#24485
20M β†’ 21M1521+151#24485#24334
21M β†’ 35K4220+22#24334#24312
35K β†’ 23M10828+80#24312#24232
23M β†’ 24M5928+31#24232#24201
24M β†’ 40K7811+67#24201#24134
40K β†’ 25.2M346+28#24134#24106
25.2M β†’ FINISH5232+20#24106#24086
TOTALS2210*433+1398

* 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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