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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Marisa Acosta

Bib: 28867 •F •Age: N/A

CA

Boston Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Age Group (F18-39)
#0 / 5716
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
27:12
3.11 mi
Rank: #21474
Start → 5K
27:12 | 8:46/mi
10K
54:11
6.21 mi
Rank: #21448 (+26)
5K → 10K
26:59 | 8:42/mi
15K
1:21:15
9.32 mi
Rank: #21352 (+96)
10K → 15K
27:04 | 8:43/mi
20K
1:48:51
12.43 mi
Rank: #21350 (+2)
15K → 20K
27:36 | 8:54/mi
HALF
1:54:43
13.11 mi
Rank: #21316 (+34)
20K → HALF
5:52 | 8:37/mi
25K
2:16:03
15.53 mi
Rank: #21134 (+182)
HALF → 25K
21:20 | 8:48/mi
30K
2:45:29
18.64 mi
Rank: #21212 (-78)
25K → 30K
29:26 | 9:29/mi
20M
2:58:04
20.00 mi
Rank: #21093 (+119)
30K → 20M
12:35 | 9:16/mi
21M
3:08:57
21.00 mi
Rank: #21274 (-181)
20M → 21M
10:53 | 10:53/mi
35K
3:16:28
21.75 mi
Rank: #21388 (-114)
21M → 35K
7:31 | 10:03/mi
23M
3:28:17
23.00 mi
Rank: #21342 (+46)
35K → 23M
11:49 | 9:27/mi
24M
3:37:38
24.00 mi
Rank: #21322 (+20)
23M → 24M
9:21 | 9:21/mi
40K
3:46:12
24.85 mi
Rank: #21380 (-58)
24M → 40K
8:34 | 10:02/mi
25.2M
3:49:41
25.20 mi
Rank: #21363 (+17)
40K → 25.2M
3:29 | 10:07/mi
FINISH
3:59:05
26.22 mi
Rank: #21408 (-45)
25.2M → FINISH
9:24 | 9:14/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
Time1:54:43
Pace8:46 /mi
2nd Half
Distance13.11 mi
Time2:04:22
Pace9:30 /mi
📊Positive Split: 8.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:2927:128:4627:12
8:46
-
10K
6.21 mi12:17:2854:118:4426:59
8:42
-0:04
15K
9.32 mi12:44:321:21:158:4427:04
8:43
+0:01
20K
12.43 mi13:12:081:48:518:4627:36
8:54
+0:11
HALF
13.11 mi13:18:001:54:438:465:52
8:37
-0:17
25K
15.53 mi13:39:202:16:038:4621:20
8:48
+0:11
30K
18.64 mi14:08:462:45:298:5329:26
9:29
+0:41
20M
20.00 mi14:21:212:58:048:5512:35
9:16
-0:13
21M
21.00 mi14:32:143:08:579:0010:53
10:53
+1:37
35K
21.75 mi14:39:453:16:289:037:31
10:03
-0:50
23M
23.00 mi14:51:343:28:179:0411:49
9:27
-0:36
24M
24.00 mi15:00:553:37:389:059:21
9:21
-0:06
40K
24.85 mi15:09:293:46:129:078:34
10:02
+0:41
25.2M
25.20 mi15:12:583:49:419:073:29
10:07
+0:05
FINISH
26.22 mi15:22:223:59:059:089:24
9:14
-0:53

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

8:37 /mi

Average Pace

9:08 /mi

Slowest Pace

10:53 /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

2:16:03

57% of race

Time at Steady Pace

1:12:35

30% of race

Time at Slower Pace

30:27

13% of race

Average Pace: 9:07 /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 mi11:50:2927:128:4627:12
8:46
#21474
10K
6.21 mi12:17:2854:118:4426:59
8:42
#21448
15K
9.32 mi12:44:321:21:158:4427:04
8:43
#21352
20K
12.43 mi13:12:081:48:518:4627:36
8:54
#21350
HALF
13.11 mi13:18:001:54:438:465:52
8:37
#21316
25K
15.53 mi13:39:202:16:038:4621:20
8:48
#21134
30K
18.64 mi14:08:462:45:298:5329:26
9:29
#21212
20M
20.00 mi14:21:212:58:048:5512:35
9:16
#21093
21M
21.00 mi14:32:143:08:579:0010:53
10:53
#21274
35K
21.75 mi14:39:453:16:289:037:31
10:03
#21388
23M
23.00 mi14:51:343:28:179:0411:49
9:27
#21342
24M
24.00 mi15:00:553:37:389:059:21
9:21
#21322
40K
24.85 mi15:09:293:46:129:078:34
10:02
#21380
25.2M
25.20 mi15:12:583:49:419:073:29
10:07
#21363
FINISH
26.22 mi15:22:223:59:059:089:24
9:14
#21408
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 mi214748436843621282(Top 73%)8273(Top 66%)8273(Top 145%)
10K6.21 mi3.10 mi21448+268385+518385+5121358(Top 74%)8317(Top 66%)8317(Top 146%)
15K9.32 mi3.11 mi21352+968333+528333+5221282(Top 73%)8273(Top 66%)8273(Top 145%)
20K12.43 mi3.11 mi21350+28344-118344-1121400(Top 74%)8354(Top 66%)8354(Top 146%)
HALF13.11 mi0.68 mi21316+348329+158329+1520924(Top 72%)8087(Top 64%)8087(Top 141%)
25K15.53 mi2.42 mi21134+1828233+968233+9620244(Top 70%)7781(Top 62%)7781(Top 136%)
30K18.64 mi3.11 mi21212-788281-488281-4821538(Top 74%)8541(Top 68%)8541(Top 149%)
20M20.00 mi1.36 mi21093+1198241+408241+4020155(Top 69%)7895(Top 63%)7895(Top 138%)
21M21.00 mi1.00 mi21274-1818337-968337-9622857(Top 79%)9340(Top 74%)9340(Top 163%)
35K21.75 mi0.75 mi21388-1148407-708407-7023284(Top 80%)9589(Top 76%)9589(Top 168%)
23M23.00 mi1.25 mi21342+468390+178390+1720438(Top 70%)8183(Top 65%)8183(Top 143%)
24M24.00 mi1.00 mi21322+208391-18391-120824(Top 72%)8450(Top 67%)8450(Top 148%)
40K24.85 mi0.85 mi21380-588432-418432-4121993(Top 76%)9093(Top 72%)9093(Top 159%)
25.2M25.20 mi0.35 mi21363+178432843219810(Top 68%)7986(Top 63%)7986(Top 140%)
FINISH26.22 mi1.02 mi21408-458461-298461-2921393(Top 74%)8769(Top 70%)8769(Top 153%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21
+97ft-345ft

Overall

21282

Females

8273

F18-39

8273

5K→10K

3.1 - 6.2 mi

Top 74%
×5
+79ft-138ft

Overall

21358

Females

8317

F18-39

8317

10K→15K

6.2 - 9.3 mi

Top 73%
×3
+67ft-78ft

Overall

21282

Females

8273

F18-39

8273

15K→20K

9.3 - 12.4 mi

Top 74%
×5
+106ft-86ft

Overall

21400

Females

8354

F18-39

8354

20K→HALF

12.4 - 13.1 mi

Top 72%
×2
+19ft-37ft

Overall

20924

Females

8087

F18-39

8087

HALF→25K

13.1 - 15.5 mi

Top 70%
×4
+66ft-88ft

Overall

20244

Females

7781

F18-39

7781

25K→30K

15.5 - 18.6 mi

Top 74%
×9
+181ft-148ft

Overall

21538

Females

8541

F18-39

8541

30K→20M

18.6 - 20.0 mi

Top 69%
×5
+64ft-50ft

Overall

20155

Females

7895

F18-39

7895

20M→21M

20.0 - 21.0 mi

Top 79%
×8
+106ft-24ft

Overall

22857

Females

9340

F18-39

9340

21M→35K

21.0 - 21.8 mi

Top 80%
×7
+17ft-86ft

Overall

23284

Females

9589

F18-39

9589

35K→23M

21.8 - 23.0 mi

Top 70%
×5
+23ft-63ft

Overall

20438

Females

8183

F18-39

8183

23M→24M

23.0 - 24.0 mi

Top 72%
×6
+12ft-82ft

Overall

20824

Females

8450

F18-39

8450

24M→40K

24.0 - 24.9 mi

Top 76%
×1
+6ft-20ft

Overall

21993

Females

9093

F18-39

9093

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1
+13ft-16ft

Overall

19810

Females

7986

F18-39

7986

25.2M→FINISH

25.2 - 26.2 mi

Top 74%
×2
+22ft-21ft

Overall

21393

Females

8769

F18-39

8769

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1482*
Passed By
1387
Net Change
+66
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21474
5K → 10K226*200+26#21474#21448
10K → 15K228*132+96#21448#21352
15K → 20K161159+2#21352#21350
20K → HALF5016+34#21350#21316
HALF → 25K217*35+182#21316#21134
25K → 30K141200-78#21134#21212
30K → 20M14627+119#21212#21093
20M → 21M29200-181#21093#21274
21M → 35K28142-114#21274#21388
35K → 23M8842+46#21388#21342
23M → 24M6444+20#21342#21322
24M → 40K3492-58#21322#21380
40K → 25.2M3316+17#21380#21363
25.2M → FINISH3782-45#21363#21408
TOTALS1482*1387+66

* 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

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OTQ

Olympic Trials Qualifying analysis available

Activity Data

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