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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Caitlin Birnie

Bib: 31478 β€’F β€’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 (F40-44)
#0 / 1737
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
29:59
3.11 mi
Rank: #24943
Start β†’ 5K
29:59 | 9:40/mi
10K
1:01:18
6.21 mi
Rank: #25557 (-614)
5K β†’ 10K
31:19 | 10:05/mi
15K
1:31:28
9.32 mi
Rank: #25343 (+214)
10K β†’ 15K
30:10 | 9:43/mi
20K
2:06:36
12.43 mi
Rank: #26048 (-705)
15K β†’ 20K
35:08 | 11:19/mi
HALF
2:13:06
13.11 mi
Rank: #25976 (+72)
20K β†’ HALF
6:30 | 9:33/mi
25K
2:37:20
15.53 mi
Rank: #25703 (+273)
HALF β†’ 25K
24:14 | 10:00/mi
30K
3:12:48
18.64 mi
Rank: #25797 (-94)
25K β†’ 30K
35:28 | 11:25/mi
20M
3:25:55
20.00 mi
Rank: #25499 (+298)
30K β†’ 20M
13:07 | 9:40/mi
21M
3:36:44
21.00 mi
Rank: #25352 (+147)
20M β†’ 21M
10:49 | 10:49/mi
35K
3:44:07
21.75 mi
Rank: #25261 (+91)
21M β†’ 35K
7:23 | 9:53/mi
23M
3:56:09
23.00 mi
Rank: #25048 (+213)
35K β†’ 23M
12:02 | 9:37/mi
24M
4:05:32
24.00 mi
Rank: #24900 (+148)
23M β†’ 24M
9:23 | 9:23/mi
40K
4:14:13
24.85 mi
Rank: #24801 (+99)
24M β†’ 40K
8:41 | 10:10/mi
25.2M
4:18:07
25.20 mi
Rank: #24774 (+27)
40K β†’ 25.2M
3:54 | 11:19/mi
FINISH
4:28:11
26.22 mi
Rank: #24746 (+28)
25.2M β†’ FINISH
10:04 | 9:53/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
Time2:13:06
Pace10:10 /mi
2nd Half
Distance13.11 mi
Time2:15:05
Pace10:19 /mi
πŸ“ŠPositive Split: 1.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:59:5229:599:4029:59
9:40
-
10K
6.21 mi12:31:111:01:189:5231:19
10:05
+0:25
15K
9.32 mi13:01:211:31:289:4930:10
9:43
-0:22
20K
12.43 mi13:36:292:06:3610:1235:08
11:19
+1:36
HALF
13.11 mi13:42:592:13:0610:106:30
9:33
-1:46
25K
15.53 mi14:07:132:37:2010:0824:14
10:00
+0:27
30K
18.64 mi14:42:413:12:4810:2135:28
11:25
+1:25
20M
20.00 mi14:55:483:25:5510:1813:07
9:40
-1:45
21M
21.00 mi15:06:373:36:4410:2010:49
10:49
+1:09
35K
21.75 mi15:14:003:44:0710:197:23
9:53
-0:56
23M
23.00 mi15:26:023:56:0910:1712:02
9:37
-0:16
24M
24.00 mi15:35:254:05:3210:149:23
9:23
-0:14
40K
24.85 mi15:44:064:14:1310:148:41
10:10
+0:47
25.2M
25.20 mi15:48:004:18:0710:153:54
11:19
+1:09
FINISH
26.22 mi15:58:044:28:1110:1510:04
9:53
-1:26

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

9:23 /mi

Average Pace

10:14 /mi

Slowest Pace

11:25 /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

9:23

3% of race

Time at Steady Pace

2:53:29

65% of race

Time at Slower Pace

1:25:19

32% of race

Average Pace: 10:14 /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 mi11:59:5229:599:4029:59
9:40
#24943
10K
6.21 mi12:31:111:01:189:5231:19
10:05
#25557
15K
9.32 mi13:01:211:31:289:4930:10
9:43
#25343
20K
12.43 mi13:36:292:06:3610:1235:08
11:19
#26048
HALF
13.11 mi13:42:592:13:0610:106:30
9:33
#25976
25K
15.53 mi14:07:132:37:2010:0824:14
10:00
#25703
30K
18.64 mi14:42:413:12:4810:2135:28
11:25
#25797
20M
20.00 mi14:55:483:25:5510:1813:07
9:40
#25499
21M
21.00 mi15:06:373:36:4410:2010:49
10:49
#25352
35K
21.75 mi15:14:003:44:0710:197:23
9:53
#25261
23M
23.00 mi15:26:023:56:0910:1712:02
9:37
#25048
24M
24.00 mi15:35:254:05:3210:149:23
9:23
#24900
40K
24.85 mi15:44:064:14:1310:148:41
10:10
#24801
25.2M
25.20 mi15:48:004:18:0710:153:54
11:19
#24774
FINISH
26.22 mi15:58:044:28:1110:1510:04
9:53
#24746
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi24943101531015324994(Top 86%)10180(Top 81%)10180(Top 586%)
10K6.21 mi3.10 mi25557-61410475-32210475-32226045(Top 90%)10750(Top 85%)10750(Top 619%)
15K9.32 mi3.11 mi25343+21410363+11210363+11224994(Top 86%)10180(Top 81%)10180(Top 586%)
20K12.43 mi3.11 mi26048-70510748-38510748-38527328(Top 94%)11502(Top 91%)11502(Top 662%)
HALF13.11 mi0.68 mi25976+7210703+4510703+4524496(Top 84%)9949(Top 79%)9949(Top 573%)
25K15.53 mi2.42 mi25703+27310568+13510568+13524296(Top 84%)9868(Top 78%)9868(Top 568%)
30K18.64 mi3.11 mi25797-9410646-7810646-7826022(Top 90%)10905(Top 87%)10905(Top 628%)
20M20.00 mi1.36 mi25499+29810513+13310513+13321613(Top 74%)8660(Top 69%)8660(Top 499%)
21M21.00 mi1.00 mi25352+14710437+7610437+7622731(Top 78%)9270(Top 74%)9270(Top 534%)
35K21.75 mi0.75 mi25261+9110408+2910408+2922827(Top 79%)9380(Top 75%)9380(Top 540%)
23M23.00 mi1.25 mi25048+21310311+9710311+9721000(Top 72%)8468(Top 67%)8468(Top 488%)
24M24.00 mi1.00 mi24900+14810244+6710244+6720956(Top 72%)8527(Top 68%)8527(Top 491%)
40K24.85 mi0.85 mi24801+9910207+3710207+3722375(Top 77%)9296(Top 74%)9296(Top 535%)
25.2M25.20 mi0.35 mi24774+2710196+1110196+1123149(Top 80%)9696(Top 77%)9696(Top 558%)
FINISH26.22 mi1.02 mi24746+2810195+110195+123525(Top 81%)9890(Top 79%)9890(Top 569%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 86%
Γ—21
+97ft-345ft

Overall

24994

Females

10180

F40-44

10180

5K→10K

3.1 - 6.2 mi

Top 90%
Γ—5
+79ft-138ft

Overall

26045

Females

10750

F40-44

10750

10K→15K

6.2 - 9.3 mi

Top 86%
Γ—3
+67ft-78ft

Overall

24994

Females

10180

F40-44

10180

15K→20K

9.3 - 12.4 mi

Top 94%
Γ—5
+106ft-86ft

Overall

27328

Females

11502

F40-44

11502

20K→HALF

12.4 - 13.1 mi

Top 84%
Γ—2
+19ft-37ft

Overall

24496

Females

9949

F40-44

9949

HALF→25K

13.1 - 15.5 mi

Top 84%
Γ—4
+66ft-88ft

Overall

24296

Females

9868

F40-44

9868

25K→30K

15.5 - 18.6 mi

Top 90%
Γ—9
+181ft-148ft

Overall

26022

Females

10905

F40-44

10905

30K→20M

18.6 - 20.0 mi

Top 74%
Γ—5
+64ft-50ft

Overall

21613

Females

8660

F40-44

8660

20M→21M

20.0 - 21.0 mi

Top 78%
Γ—8
+106ft-24ft

Overall

22731

Females

9270

F40-44

9270

21M→35K

21.0 - 21.8 mi

Top 79%
Γ—7
+17ft-86ft

Overall

22827

Females

9380

F40-44

9380

35K→23M

21.8 - 23.0 mi

Top 72%
Γ—5
+23ft-63ft

Overall

21000

Females

8468

F40-44

8468

23M→24M

23.0 - 24.0 mi

Top 72%
Γ—6
+12ft-82ft

Overall

20956

Females

8527

F40-44

8527

24M→40K

24.0 - 24.9 mi

Top 77%
Γ—1
+6ft-20ft

Overall

22375

Females

9296

F40-44

9296

40K→25.2M

24.9 - 25.2 mi

Top 80%
Γ—1
+13ft-16ft

Overall

23149

Females

9696

F40-44

9696

25.2M→FINISH

25.2 - 26.2 mi

Top 81%
Γ—2
+22ft-21ft

Overall

23525

Females

9890

F40-44

9890

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1856*
Passed By
683
Net Change
+197
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#24943
5K β†’ 10K41200-614#24943#25557
10K β†’ 15K263*49+214#25557#25343
15K β†’ 20K16200-705#25343#26048
20K β†’ HALF753+72#26048#25976
HALF β†’ 25K275*2+273#25976#25703
25K β†’ 30K97191-94#25703#25797
30K β†’ 20M298*0+298#25797#25499
20M β†’ 21M1536+147#25499#25352
21M β†’ 35K932+91#25352#25261
35K β†’ 23M214*1+213#25261#25048
23M β†’ 24M1502+148#25048#24900
24M β†’ 40K1034+99#24900#24801
40K β†’ 25.2M347+27#24801#24774
25.2M β†’ FINISH4416+28#24774#24746
TOTALS1856*683+197

* 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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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

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