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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Daisy Acosta

Bib: 31433 •F •Age: N/A

MA

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 (F50-54)
#0 / 1233
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
40:05
3.11 mi
Rank: #28968
Start → 5K
40:05 | 12:55/mi
10K
1:19:00
6.21 mi
Rank: #28937 (+31)
5K → 10K
38:55 | 12:32/mi
15K
1:59:11
9.32 mi
Rank: #28919 (+18)
10K → 15K
40:11 | 12:57/mi
20K
2:39:00
12.43 mi
Rank: #28874 (+45)
15K → 20K
39:49 | 12:49/mi
HALF
2:47:43
13.11 mi
Rank: #28873 (+1)
20K → HALF
8:43 | 12:48/mi
25K
3:20:34
15.53 mi
Rank: #28833 (+40)
HALF → 25K
32:51 | 13:33/mi
30K
4:03:36
18.64 mi
Rank: #28786 (+47)
25K → 30K
43:02 | 13:52/mi
20M
4:23:26
20.00 mi
Rank: #28782 (+4)
30K → 20M
19:50 | 14:37/mi
21M
4:38:46
21.00 mi
Rank: #28770 (+12)
20M → 21M
15:20 | 15:20/mi
35K
4:48:14
21.75 mi
Rank: #28751 (+19)
21M → 35K
9:28 | 12:40/mi
23M
5:04:36
23.00 mi
Rank: #28699 (+52)
35K → 23M
16:22 | 13:05/mi
24M
5:17:09
24.00 mi
Rank: #28674 (+25)
23M → 24M
12:33 | 12:33/mi
40K
5:28:50
24.85 mi
Rank: #28658 (+16)
24M → 40K
11:41 | 13:40/mi
25.2M
5:34:06
25.20 mi
Rank: #28655 (+3)
40K → 25.2M
5:16 | 15:17/mi
FINISH
5:47:56
26.22 mi
Rank: #28658 (-3)
25.2M → FINISH
13:50 | 13:35/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:47:43
Pace12:48 /mi
2nd Half
Distance13.11 mi
Time3:00:13
Pace13:45 /mi
📊Positive Split: 7.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi12:07:3440:0512:5540:05
12:55
-
10K
6.21 mi12:46:291:19:0012:4338:55
12:32
-0:23
15K
9.32 mi13:26:401:59:1112:4840:11
12:57
+0:25
20K
12.43 mi14:06:292:39:0012:4839:49
12:49
-0:08
HALF
13.11 mi14:15:122:47:4312:488:43
12:48
-0:01
25K
15.53 mi14:48:033:20:3412:5532:51
13:33
+0:45
30K
18.64 mi15:31:054:03:3613:0543:02
13:52
+0:19
20M
20.00 mi15:50:554:23:2613:1119:50
14:37
+0:45
21M
21.00 mi16:06:154:38:4613:1715:20
15:20
+0:43
35K
21.75 mi16:15:434:48:1413:169:28
12:40
-2:40
23M
23.00 mi16:32:055:04:3613:1516:22
13:05
+0:25
24M
24.00 mi16:44:385:17:0913:1312:33
12:33
-0:32
40K
24.85 mi16:56:195:28:5013:1411:41
13:40
+1:07
25.2M
25.20 mi17:01:355:34:0613:165:16
15:17
+1:37
FINISH
26.22 mi17:15:255:47:5613:1713:50
13:35
-1:42

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

12:32 /mi

Average Pace

13:17 /mi

Slowest Pace

15:20 /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

51:28

15% of race

Time at Steady Pace

2:34:38

44% of race

Time at Slower Pace

2:21:50

41% of race

Average Pace: 13:16 /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 mi12:07:3440:0512:5540:05
12:55
#28968
10K
6.21 mi12:46:291:19:0012:4338:55
12:32
#28937
15K
9.32 mi13:26:401:59:1112:4840:11
12:57
#28919
20K
12.43 mi14:06:292:39:0012:4839:49
12:49
#28874
HALF
13.11 mi14:15:122:47:4312:488:43
12:48
#28873
25K
15.53 mi14:48:033:20:3412:5532:51
13:33
#28833
30K
18.64 mi15:31:054:03:3613:0543:02
13:52
#28786
20M
20.00 mi15:50:554:23:2613:1119:50
14:37
#28782
21M
21.00 mi16:06:154:38:4613:1715:20
15:20
#28770
35K
21.75 mi16:15:434:48:1413:169:28
12:40
#28751
23M
23.00 mi16:32:055:04:3613:1516:22
13:05
#28699
24M
24.00 mi16:44:385:17:0913:1312:33
12:33
#28674
40K
24.85 mi16:56:195:28:5013:1411:41
13:40
#28658
25.2M
25.20 mi17:01:355:34:0613:165:16
15:17
#28655
FINISH
26.22 mi17:15:255:47:5613:1713:50
13:35
#28658
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi28968125441254428808(Top 99%)12438(Top 99%)12438(Top 1009%)
10K6.21 mi3.10 mi28937+3112522+2212522+2228833(Top 99%)12452(Top 99%)12452(Top 1010%)
15K9.32 mi3.11 mi28919+1812510+1212510+1228808(Top 99%)12438(Top 99%)12438(Top 1009%)
20K12.43 mi3.11 mi28874+4512481+2912481+2928533(Top 98%)12272(Top 98%)12272(Top 995%)
HALF13.11 mi0.68 mi28873+112480+112480+128652(Top 99%)12370(Top 98%)12370(Top 1003%)
25K15.53 mi2.42 mi28833+4012453+2712453+2728510(Top 98%)12267(Top 98%)12267(Top 995%)
30K18.64 mi3.11 mi28786+4712428+2512428+2528275(Top 97%)12174(Top 97%)12174(Top 987%)
20M20.00 mi1.36 mi28782+412430-212430-228458(Top 98%)12286(Top 98%)12286(Top 996%)
21M21.00 mi1.00 mi28770+1212420+1012420+1028256(Top 97%)12201(Top 97%)12201(Top 990%)
35K21.75 mi0.75 mi28751+1912410+1012410+1027433(Top 95%)11787(Top 94%)11787(Top 956%)
23M23.00 mi1.25 mi28699+5212380+3012380+3027423(Top 94%)11786(Top 94%)11786(Top 956%)
24M24.00 mi1.00 mi28674+2512364+1612364+1627243(Top 94%)11740(Top 93%)11740(Top 952%)
40K24.85 mi0.85 mi28658+1612355+912355+927651(Top 95%)11943(Top 95%)11943(Top 969%)
25.2M25.20 mi0.35 mi28655+312356-112356-128082(Top 97%)12168(Top 97%)12168(Top 987%)
FINISH26.22 mi1.02 mi28658-312359-312359-328519(Top 98%)12366(Top 98%)12366(Top 1003%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 99%
×21
+97ft-345ft

Overall

28808

Females

12438

F50-54

12438

5K→10K

3.1 - 6.2 mi

Top 99%
×5
+79ft-138ft

Overall

28833

Females

12452

F50-54

12452

10K→15K

6.2 - 9.3 mi

Top 99%
×3
+67ft-78ft

Overall

28808

Females

12438

F50-54

12438

15K→20K

9.3 - 12.4 mi

Top 98%
×5
+106ft-86ft

Overall

28533

Females

12272

F50-54

12272

20K→HALF

12.4 - 13.1 mi

Top 99%
×2
+19ft-37ft

Overall

28652

Females

12370

F50-54

12370

HALF→25K

13.1 - 15.5 mi

Top 98%
×4
+66ft-88ft

Overall

28510

Females

12267

F50-54

12267

25K→30K

15.5 - 18.6 mi

Top 97%
×9
+181ft-148ft

Overall

28275

Females

12174

F50-54

12174

30K→20M

18.6 - 20.0 mi

Top 98%
×5
+64ft-50ft

Overall

28458

Females

12286

F50-54

12286

20M→21M

20.0 - 21.0 mi

Top 97%
×8
+106ft-24ft

Overall

28256

Females

12201

F50-54

12201

21M→35K

21.0 - 21.8 mi

Top 95%
×7
+17ft-86ft

Overall

27433

Females

11787

F50-54

11787

35K→23M

21.8 - 23.0 mi

Top 94%
×5
+23ft-63ft

Overall

27423

Females

11786

F50-54

11786

23M→24M

23.0 - 24.0 mi

Top 94%
×6
+12ft-82ft

Overall

27243

Females

11740

F50-54

11740

24M→40K

24.0 - 24.9 mi

Top 95%
×1
+6ft-20ft

Overall

27651

Females

11943

F50-54

11943

40K→25.2M

24.9 - 25.2 mi

Top 97%
×1
+13ft-16ft

Overall

28082

Females

12168

F50-54

12168

25.2M→FINISH

25.2 - 26.2 mi

Top 98%
×2
+22ft-21ft

Overall

28519

Females

12366

F50-54

12366

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
366
Passed By
56
Net Change
+310
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#28968
5K → 10K376+31#28968#28937
10K → 15K213+18#28937#28919
15K → 20K483+45#28919#28874
20K → HALF76+1#28874#28873
HALF → 25K433+40#28873#28833
25K → 30K514+47#28833#28786
30K → 20M1410+4#28786#28782
20M → 21M186+12#28782#28770
21M → 35K190+19#28770#28751
35K → 23M520+52#28751#28699
23M → 24M250+25#28699#28674
24M → 40K171+16#28674#28658
40K → 25.2M52+3#28658#28655
25.2M → FINISH912-3#28655#28658
TOTALS36656+310
📊

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

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