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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Kaitlin O'Brien

Bib: 32671 •F •Age: N/A

MA

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
36:27
3.11 mi
Rank: #28676
Start → 5K
36:27 | 11:44/mi
10K
1:14:18
6.21 mi
Rank: #28698 (-22)
5K → 10K
37:51 | 12:11/mi
15K
1:52:11
9.32 mi
Rank: #28646 (+52)
10K → 15K
37:53 | 12:12/mi
20K
2:30:42
12.43 mi
Rank: #28575 (+71)
15K → 20K
38:31 | 12:24/mi
HALF
2:38:49
13.11 mi
Rank: #28542 (+33)
20K → HALF
8:07 | 11:55/mi
25K
3:09:19
15.53 mi
Rank: #28453 (+89)
HALF → 25K
30:30 | 12:35/mi
30K
3:50:06
18.64 mi
Rank: #28364 (+89)
25K → 30K
40:47 | 13:08/mi
20M
4:08:03
20.00 mi
Rank: #28327 (+37)
30K → 20M
17:57 | 13:13/mi
21M
4:22:01
21.00 mi
Rank: #28287 (+40)
20M → 21M
13:58 | 13:58/mi
35K
4:31:49
21.75 mi
Rank: #28271 (+16)
21M → 35K
9:48 | 13:06/mi
23M
4:48:06
23.00 mi
Rank: #28239 (+32)
35K → 23M
16:17 | 13:01/mi
24M
5:02:16
24.00 mi
Rank: #28267 (-28)
23M → 24M
14:10 | 14:10/mi
40K
5:14:49
24.85 mi
Rank: #28275 (-8)
24M → 40K
12:33 | 14:41/mi
25.2M
5:19:04
25.20 mi
Rank: #28248 (+27)
40K → 25.2M
4:15 | 12:20/mi
FINISH
5:30:37
26.22 mi
Rank: #28210 (+38)
25.2M → FINISH
11:33 | 11:21/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:38:49
Pace12:07 /mi
2nd Half
Distance13.11 mi
Time2:51:48
Pace13:07 /mi
📊Positive Split: 8.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi12:06:0636:2711:4436:27
11:44
-
10K
6.21 mi12:43:571:14:1811:5837:51
12:11
+0:27
15K
9.32 mi13:21:501:52:1112:0337:53
12:12
+0:01
20K
12.43 mi14:00:212:30:4212:0838:31
12:24
+0:12
HALF
13.11 mi14:08:282:38:4912:078:07
11:55
-0:29
25K
15.53 mi14:38:583:09:1912:1230:30
12:35
+0:40
30K
18.64 mi15:19:453:50:0612:2140:47
13:08
+0:33
20M
20.00 mi15:37:424:08:0312:2517:57
13:13
+0:05
21M
21.00 mi15:51:404:22:0112:2913:58
13:58
+0:45
35K
21.75 mi16:01:284:31:4912:309:48
13:06
-0:52
23M
23.00 mi16:17:454:48:0612:3216:17
13:01
-0:05
24M
24.00 mi16:31:555:02:1612:3614:10
14:10
+1:09
40K
24.85 mi16:44:285:14:4912:4012:33
14:41
+0:31
25.2M
25.20 mi16:48:435:19:0412:404:15
12:20
-2:21
FINISH
26.22 mi17:00:165:30:3712:3811:33
11:21
-0:59

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

11:21 /mi

Average Pace

12:37 /mi

Slowest Pace

14:41 /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

56:07

17% of race

Time at Steady Pace

2:45:17

50% of race

Time at Slower Pace

1:49:13

33% of race

Average Pace: 12:37 /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 mi12:06:0636:2711:4436:27
11:44
#28676
10K
6.21 mi12:43:571:14:1811:5837:51
12:11
#28698
15K
9.32 mi13:21:501:52:1112:0337:53
12:12
#28646
20K
12.43 mi14:00:212:30:4212:0838:31
12:24
#28575
HALF
13.11 mi14:08:282:38:4912:078:07
11:55
#28542
25K
15.53 mi14:38:583:09:1912:1230:30
12:35
#28453
30K
18.64 mi15:19:453:50:0612:2140:47
13:08
#28364
20M
20.00 mi15:37:424:08:0312:2517:57
13:13
#28327
21M
21.00 mi15:51:404:22:0112:2913:58
13:58
#28287
35K
21.75 mi16:01:284:31:4912:309:48
13:06
#28271
23M
23.00 mi16:17:454:48:0612:3216:17
13:01
#28239
24M
24.00 mi16:31:555:02:1612:3614:10
14:10
#28267
40K
24.85 mi16:44:285:14:4912:4012:33
14:41
#28275
25.2M
25.20 mi16:48:435:19:0412:404:15
12:20
#28248
FINISH
26.22 mi17:00:165:30:3712:3811:33
11:21
#28210
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 mi28676123411234128487(Top 98%)12227(Top 97%)12227(Top 214%)
10K6.21 mi3.10 mi28698-2212354-1312354-1328693(Top 99%)12356(Top 98%)12356(Top 216%)
15K9.32 mi3.11 mi28646+5212318+3612318+3628487(Top 98%)12227(Top 97%)12227(Top 214%)
20K12.43 mi3.11 mi28575+7112278+4012278+4028311(Top 98%)12120(Top 96%)12120(Top 212%)
HALF13.11 mi0.68 mi28542+3312256+2212256+2228222(Top 97%)12094(Top 96%)12094(Top 212%)
25K15.53 mi2.42 mi28453+8912199+5712199+5727969(Top 96%)11936(Top 95%)11936(Top 209%)
30K18.64 mi3.11 mi28364+8912151+4812151+4827817(Top 96%)11900(Top 95%)11900(Top 208%)
20M20.00 mi1.36 mi28327+3712127+2412127+2427598(Top 95%)11821(Top 94%)11821(Top 207%)
21M21.00 mi1.00 mi28287+4012099+2812099+2827309(Top 94%)11706(Top 93%)11706(Top 205%)
35K21.75 mi0.75 mi28271+1612097+212097+227802(Top 96%)11985(Top 95%)11985(Top 210%)
23M23.00 mi1.25 mi28239+3212083+1412083+1427342(Top 94%)11750(Top 93%)11750(Top 206%)
24M24.00 mi1.00 mi28267-2812104-2112104-2128425(Top 98%)12325(Top 98%)12325(Top 216%)
40K24.85 mi0.85 mi28275-812112-812112-828310(Top 98%)12274(Top 98%)12274(Top 215%)
25.2M25.20 mi0.35 mi28248+2712095+1712095+1725093(Top 86%)10686(Top 85%)10686(Top 187%)
FINISH26.22 mi1.02 mi28210+3812081+1412081+1426672(Top 92%)11487(Top 91%)11487(Top 201%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 98%
×21
+97ft-345ft

Overall

28487

Females

12227

F18-39

12227

5K→10K

3.1 - 6.2 mi

Top 99%
×5
+79ft-138ft

Overall

28693

Females

12356

F18-39

12356

10K→15K

6.2 - 9.3 mi

Top 98%
×3
+67ft-78ft

Overall

28487

Females

12227

F18-39

12227

15K→20K

9.3 - 12.4 mi

Top 98%
×5
+106ft-86ft

Overall

28311

Females

12120

F18-39

12120

20K→HALF

12.4 - 13.1 mi

Top 97%
×2
+19ft-37ft

Overall

28222

Females

12094

F18-39

12094

HALF→25K

13.1 - 15.5 mi

Top 96%
×4
+66ft-88ft

Overall

27969

Females

11936

F18-39

11936

25K→30K

15.5 - 18.6 mi

Top 96%
×9
+181ft-148ft

Overall

27817

Females

11900

F18-39

11900

30K→20M

18.6 - 20.0 mi

Top 95%
×5
+64ft-50ft

Overall

27598

Females

11821

F18-39

11821

20M→21M

20.0 - 21.0 mi

Top 94%
×8
+106ft-24ft

Overall

27309

Females

11706

F18-39

11706

21M→35K

21.0 - 21.8 mi

Top 96%
×7
+17ft-86ft

Overall

27802

Females

11985

F18-39

11985

35K→23M

21.8 - 23.0 mi

Top 94%
×5
+23ft-63ft

Overall

27342

Females

11750

F18-39

11750

23M→24M

23.0 - 24.0 mi

Top 98%
×6
+12ft-82ft

Overall

28425

Females

12325

F18-39

12325

24M→40K

24.0 - 24.9 mi

Top 98%
×1
+6ft-20ft

Overall

28310

Females

12274

F18-39

12274

40K→25.2M

24.9 - 25.2 mi

Top 86%
×1
+13ft-16ft

Overall

25093

Females

10686

F18-39

10686

25.2M→FINISH

25.2 - 26.2 mi

Top 92%
×2
+22ft-21ft

Overall

26672

Females

11487

F18-39

11487

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
689
Passed By
223
Net Change
+466
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#28676
5K → 10K4769-22#28676#28698
10K → 15K7927+52#28698#28646
15K → 20K8413+71#28646#28575
20K → HALF385+33#28575#28542
HALF → 25K10011+89#28542#28453
25K → 30K10314+89#28453#28364
30K → 20M436+37#28364#28327
20M → 21M455+40#28327#28287
21M → 35K248+16#28287#28271
35K → 23M4311+32#28271#28239
23M → 24M533-28#28239#28267
24M → 40K1220-8#28267#28275
40K → 25.2M270+27#28275#28248
25.2M → FINISH391+38#28248#28210
TOTALS689223+466
📊

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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