All Results|Race Analytics|Course|Contact
BOSTON MARATHON 2026

Carissa Shea

Bib: 21635•F

CO

Boston Marathon logo
0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Age Group (F45-49)
#0 / 1786
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
25:19
3.11 mi
Rank: #17917
Start → 5K
25:19 | 8:09/mi
10K
49:59
6.21 mi
Rank: #17403 (+514)
5K → 10K
24:40 | 7:57/mi
15K
1:15:55
9.32 mi
Rank: #18044 (-641)
10K → 15K
25:56 | 8:21/mi
20K
1:43:14
12.43 mi
Rank: #18808 (-764)
15K → 20K
27:19 | 8:48/mi
HALF
1:49:46
13.11 mi
Rank: #19231 (-423)
20K → HALF
6:32 | 9:36/mi
25K
2:12:41
15.53 mi
Rank: #19958 (-727)
HALF → 25K
22:55 | 9:27/mi
30K
2:43:48
18.64 mi
Rank: #20779 (-821)
25K → 30K
31:07 | 10:01/mi
20M
2:57:49
20.00 mi
Rank: #21042 (-263)
30K → 20M
14:01 | 10:20/mi
21M
3:08:50
21.00 mi
Rank: #21252 (-210)
20M → 21M
11:01 | 11:01/mi
35K
3:16:09
21.75 mi
Rank: #21319 (-67)
21M → 35K
7:19 | 9:47/mi
23M
3:28:53
23.00 mi
Rank: #21440 (-121)
35K → 23M
12:44 | 10:11/mi
24M
3:38:00
24.00 mi
Rank: #21385 (+55)
23M → 24M
9:07 | 9:07/mi
40K
3:46:30
24.85 mi
Rank: #21436 (-51)
24M → 40K
8:30 | 9:57/mi
25.2M
3:50:03
25.20 mi
Rank: #21433 (+3)
40K → 25.2M
3:33 | 10:18/mi
FINISH
3:59:24
26.22 mi
Rank: #21463 (-30)
25.2M → FINISH
9:21 | 9:11/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:49:46
Pace8:23 /mi
2nd Half
Distance13.11 mi
Time2:09:38
Pace9:54 /mi
📊Positive Split: 18.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:3525:198:0925:19
8:09
-
10K
6.21 mi11:51:1549:598:0324:40
7:57
-0:12
15K
9.32 mi12:17:111:15:558:0925:56
8:21
+0:24
20K
12.43 mi12:44:301:43:148:1927:19
8:48
+0:27
HALF
13.11 mi12:51:021:49:468:236:32
9:36
+0:48
25K
15.53 mi13:13:572:12:418:3322:55
9:27
-0:09
30K
18.64 mi13:45:042:43:488:4831:07
10:01
+0:34
20M
20.00 mi13:59:052:57:498:5414:01
10:20
+0:19
21M
21.00 mi14:10:063:08:509:0011:01
11:01
+0:41
35K
21.75 mi14:17:253:16:099:027:19
9:47
-1:14
23M
23.00 mi14:30:093:28:539:0512:44
10:11
+0:24
24M
24.00 mi14:39:163:38:009:069:07
9:07
-1:04
40K
24.85 mi14:47:463:46:309:078:30
9:57
+0:50
25.2M
25.20 mi14:51:193:50:039:083:33
10:18
+0:21
FINISH
26.22 mi15:00:403:59:249:099:21
9:11
-1:07

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

7:57 /mi

Average Pace

9:08 /mi

Slowest Pace

11:01 /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

1:52:21

47% of race

Time at Steady Pace

1:25:44

36% of race

Time at Slower Pace

41:19

17% of race

Average Pace: 9:08 /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 mi11:26:3525:198:0925:19
8:09
#17917
10K
6.21 mi11:51:1549:598:0324:40
7:57
#17403
15K
9.32 mi12:17:111:15:558:0925:56
8:21
#18044
20K
12.43 mi12:44:301:43:148:1927:19
8:48
#18808
HALF
13.11 mi12:51:021:49:468:236:32
9:36
#19231
25K
15.53 mi13:13:572:12:418:3322:55
9:27
#19958
30K
18.64 mi13:45:042:43:488:4831:07
10:01
#20779
20M
20.00 mi13:59:052:57:498:5414:01
10:20
#21042
21M
21.00 mi14:10:063:08:509:0011:01
11:01
#21252
35K
21.75 mi14:17:253:16:099:027:19
9:47
#21319
23M
23.00 mi14:30:093:28:539:0512:44
10:11
#21440
24M
24.00 mi14:39:163:38:009:069:07
9:07
#21385
40K
24.85 mi14:47:463:46:309:078:30
9:57
#21436
25.2M
25.20 mi14:51:193:50:039:083:33
10:18
#21433
FINISH
26.22 mi15:00:403:59:249:099:21
9:11
#21463
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi179176464646419297(Top 66%)7214(Top 57%)7214(Top 404%)
10K6.21 mi3.10 mi17403+5146160+3046160+30416798(Top 58%)5801(Top 46%)5801(Top 325%)
15K9.32 mi3.11 mi18044-6416514-3546514-35419297(Top 66%)7214(Top 57%)7214(Top 404%)
20K12.43 mi3.11 mi18808-7646950-4366950-43620941(Top 72%)8117(Top 65%)8117(Top 454%)
HALF13.11 mi0.68 mi19231-4237189-2397189-23924605(Top 85%)9994(Top 79%)9994(Top 560%)
25K15.53 mi2.42 mi19958-7277607-4187607-41822870(Top 79%)9137(Top 73%)9137(Top 512%)
30K18.64 mi3.11 mi20779-8218068-4618068-46123176(Top 80%)9379(Top 75%)9379(Top 525%)
20M20.00 mi1.36 mi21042-2638218-1508218-15023397(Top 81%)9583(Top 76%)9583(Top 537%)
21M21.00 mi1.00 mi21252-2108325-1078325-10723149(Top 80%)9503(Top 76%)9503(Top 532%)
35K21.75 mi0.75 mi21319-678374-498374-4922577(Top 78%)9241(Top 73%)9241(Top 517%)
23M23.00 mi1.25 mi21440-1218433-598433-5922595(Top 78%)9299(Top 74%)9299(Top 521%)
24M24.00 mi1.00 mi21385+558422+118422+1119966(Top 69%)8043(Top 64%)8043(Top 450%)
40K24.85 mi0.85 mi21436-518465-438465-4321777(Top 75%)8992(Top 71%)8992(Top 503%)
25.2M25.20 mi0.35 mi21433+38470-58470-520460(Top 71%)8311(Top 66%)8311(Top 465%)
FINISH26.22 mi1.02 mi21463-308489-198489-1921221(Top 73%)8683(Top 69%)8683(Top 486%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21
+97ft-345ft

Overall

19297

Females

7214

F45-49

7214

5K→10K

3.1 - 6.2 mi

Top 58%
×5
+79ft-138ft

Overall

16798

Females

5801

F45-49

5801

10K→15K

6.2 - 9.3 mi

Top 66%
×3
+67ft-78ft

Overall

19297

Females

7214

F45-49

7214

15K→20K

9.3 - 12.4 mi

Top 72%
×5
+106ft-86ft

Overall

20941

Females

8117

F45-49

8117

20K→HALF

12.4 - 13.1 mi

Top 85%
×2
+19ft-37ft

Overall

24605

Females

9994

F45-49

9994

HALF→25K

13.1 - 15.5 mi

Top 79%
×4
+66ft-88ft

Overall

22870

Females

9137

F45-49

9137

25K→30K

15.5 - 18.6 mi

Top 80%
×9
+181ft-148ft

Overall

23176

Females

9379

F45-49

9379

30K→20M

18.6 - 20.0 mi

Top 81%
×5
+64ft-50ft

Overall

23397

Females

9583

F45-49

9583

20M→21M

20.0 - 21.0 mi

Top 80%
×8
+106ft-24ft

Overall

23149

Females

9503

F45-49

9503

21M→35K

21.0 - 21.8 mi

Top 78%
×7
+17ft-86ft

Overall

22577

Females

9241

F45-49

9241

35K→23M

21.8 - 23.0 mi

Top 78%
×5
+23ft-63ft

Overall

22595

Females

9299

F45-49

9299

23M→24M

23.0 - 24.0 mi

Top 69%
×6
+12ft-82ft

Overall

19966

Females

8043

F45-49

8043

24M→40K

24.0 - 24.9 mi

Top 75%
×1
+6ft-20ft

Overall

21777

Females

8992

F45-49

8992

40K→25.2M

24.9 - 25.2 mi

Top 71%
×1
+13ft-16ft

Overall

20460

Females

8311

F45-49

8311

25.2M→FINISH

25.2 - 26.2 mi

Top 73%
×2
+22ft-21ft

Overall

21221

Females

8683

F45-49

8683

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1075
Passed By
4621
Net Change
-3546
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17917
5K → 10K61197+514#17917#17403
10K → 15K40681-641#17403#18044
15K → 20K33797-764#18044#18808
20K → HALF4427-423#18808#19231
HALF → 25K18745-727#19231#19958
25K → 30K56877-821#19958#20779
30K → 20M31294-263#20779#21042
20M → 21M25235-210#21042#21252
21M → 35K2996-67#21252#21319
35K → 23M46167-121#21319#21440
23M → 24M7924+55#21440#21385
24M → 40K3990-51#21385#21436
40K → 25.2M2320+3#21436#21433
25.2M → FINISH4171-30#21433#21463
TOTALS10754621-3546
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

Loading...

🎨Heatmap Timeline

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

Upload your GPX file to see detailed activity metrics

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export & Support

Download your data, get help, and share your feedback

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing