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BOSTON MARATHON 2026

Carolyn Certo

Bib: 27334β€’F

WA

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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Age Group (F18-39)
#0 / 5716
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
29:44
3.11 mi
Rank: #24695
Start β†’ 5K
29:44 | 9:35/mi
10K
59:37
6.21 mi
Rank: #24806 (-111)
5K β†’ 10K
29:53 | 9:38/mi
15K
1:29:32
9.32 mi
Rank: #24784 (+22)
10K β†’ 15K
29:55 | 9:38/mi
20K
2:01:05
12.43 mi
Rank: #24963 (-179)
15K β†’ 20K
31:33 | 10:10/mi
HALF
2:07:45
13.11 mi
Rank: #24977 (-14)
20K β†’ HALF
6:40 | 9:47/mi
25K
2:33:23
15.53 mi
Rank: #25077 (-100)
HALF β†’ 25K
25:38 | 10:35/mi
30K
3:04:12
18.64 mi
Rank: #24708 (+369)
25K β†’ 30K
30:49 | 9:56/mi
20M
3:17:32
20.00 mi
Rank: #24516 (+192)
30K β†’ 20M
13:20 | 9:49/mi
21M
3:27:40
21.00 mi
Rank: #24314 (+202)
20M β†’ 21M
10:08 | 10:08/mi
35K
3:35:27
21.75 mi
Rank: #24314
21M β†’ 35K
7:47 | 10:25/mi
23M
3:48:26
23.00 mi
Rank: #24223 (+91)
35K β†’ 23M
12:59 | 10:23/mi
24M
3:58:43
24.00 mi
Rank: #24177 (+46)
23M β†’ 24M
10:17 | 10:17/mi
40K
4:07:27
24.85 mi
Rank: #24101 (+76)
24M β†’ 40K
8:44 | 10:13/mi
25.2M
4:11:00
25.20 mi
Rank: #24048 (+53)
40K β†’ 25.2M
3:33 | 10:18/mi
FINISH
4:19:46
26.22 mi
Rank: #23888 (+160)
25.2M β†’ FINISH
8:46 | 8:37/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:07:45
Pace9:45 /mi
2nd Half
Distance13.11 mi
Time2:12:01
Pace10:05 /mi
πŸ“ŠPositive Split: 3.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:0129:449:3529:44
9:35
-
10K
6.21 mi12:20:5459:379:3629:53
9:38
+0:03
15K
9.32 mi12:50:491:29:329:3729:55
9:38
0:00
20K
12.43 mi13:22:222:01:059:4531:33
10:10
+0:32
HALF
13.11 mi13:29:022:07:459:456:40
9:47
-0:23
25K
15.53 mi13:54:402:33:239:5325:38
10:35
+0:48
30K
18.64 mi14:25:293:04:129:5330:49
9:56
-0:39
20M
20.00 mi14:38:493:17:329:5313:20
9:49
-0:07
21M
21.00 mi14:48:573:27:409:5410:08
10:08
+0:19
35K
21.75 mi14:56:443:35:279:557:47
10:25
+0:17
23M
23.00 mi15:09:433:48:269:5612:59
10:23
-0:02
24M
24.00 mi15:20:003:58:439:5710:17
10:17
-0:06
40K
24.85 mi15:28:444:07:279:588:44
10:13
-0:04
25.2M
25.20 mi15:32:174:11:009:583:33
10:18
+0:05
FINISH
26.22 mi15:41:034:19:469:558:46
8:37
-1:41

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

8:37 /mi

Average Pace

9:55 /mi

Slowest Pace

10:35 /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

1:58:18

46% of race

Time at Steady Pace

1:35:04

37% of race

Time at Slower Pace

46:24

18% of race

Average Pace: 9:54 /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 mi11:51:0129:449:3529:44
9:35
#24695
10K
6.21 mi12:20:5459:379:3629:53
9:38
#24806
15K
9.32 mi12:50:491:29:329:3729:55
9:38
#24784
20K
12.43 mi13:22:222:01:059:4531:33
10:10
#24963
HALF
13.11 mi13:29:022:07:459:456:40
9:47
#24977
25K
15.53 mi13:54:402:33:239:5325:38
10:35
#25077
30K
18.64 mi14:25:293:04:129:5330:49
9:56
#24708
20M
20.00 mi14:38:493:17:329:5313:20
9:49
#24516
21M
21.00 mi14:48:573:27:409:5410:08
10:08
#24314
35K
21.75 mi14:56:443:35:279:557:47
10:25
#24314
23M
23.00 mi15:09:433:48:269:5612:59
10:23
#24223
24M
24.00 mi15:20:003:58:439:5710:17
10:17
#24177
40K
24.85 mi15:28:444:07:279:588:44
10:13
#24101
25.2M
25.20 mi15:32:174:11:009:583:33
10:18
#24048
FINISH
26.22 mi15:41:034:19:469:558:46
8:37
#23888
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 mi24695100191001924785(Top 85%)10066(Top 80%)10066(Top 176%)
10K6.21 mi3.10 mi24806-11110078-5910078-5924898(Top 86%)10119(Top 80%)10119(Top 177%)
15K9.32 mi3.11 mi24784+2210059+1910059+1924785(Top 85%)10066(Top 80%)10066(Top 176%)
20K12.43 mi3.11 mi24963-17910162-10310162-10325376(Top 87%)10401(Top 83%)10401(Top 182%)
HALF13.11 mi0.68 mi24977-1410170-810170-825102(Top 86%)10267(Top 82%)10267(Top 180%)
25K15.53 mi2.42 mi25077-10010229-5910229-5925586(Top 88%)10557(Top 84%)10557(Top 185%)
30K18.64 mi3.11 mi24708+36910062+16710062+16722916(Top 79%)9244(Top 73%)9244(Top 162%)
20M20.00 mi1.36 mi24516+1929983+799983+7922076(Top 76%)8889(Top 71%)8889(Top 156%)
21M21.00 mi1.00 mi24314+2029889+949889+9420900(Top 72%)8323(Top 66%)8323(Top 146%)
35K21.75 mi0.75 mi243149899-109899-1024118(Top 83%)10050(Top 80%)10050(Top 176%)
23M23.00 mi1.25 mi24223+919876+239876+2323080(Top 80%)9558(Top 76%)9558(Top 167%)
24M24.00 mi1.00 mi24177+469868+89868+823576(Top 81%)9848(Top 78%)9848(Top 172%)
40K24.85 mi0.85 mi24101+769845+239845+2322502(Top 78%)9355(Top 74%)9355(Top 164%)
25.2M25.20 mi0.35 mi24048+539828+179828+1720486(Top 71%)8337(Top 66%)8337(Top 146%)
FINISH26.22 mi1.02 mi23888+1609751+779751+7718725(Top 65%)7431(Top 59%)7431(Top 130%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
Γ—21
+97ft-345ft

Overall

24785

Females

10066

F18-39

10066

5K→10K

3.1 - 6.2 mi

Top 86%
Γ—5
+79ft-138ft

Overall

24898

Females

10119

F18-39

10119

10K→15K

6.2 - 9.3 mi

Top 85%
Γ—3
+67ft-78ft

Overall

24785

Females

10066

F18-39

10066

15K→20K

9.3 - 12.4 mi

Top 87%
Γ—5
+106ft-86ft

Overall

25376

Females

10401

F18-39

10401

20K→HALF

12.4 - 13.1 mi

Top 86%
Γ—2
+19ft-37ft

Overall

25102

Females

10267

F18-39

10267

HALF→25K

13.1 - 15.5 mi

Top 88%
Γ—4
+66ft-88ft

Overall

25586

Females

10557

F18-39

10557

25K→30K

15.5 - 18.6 mi

Top 79%
Γ—9
+181ft-148ft

Overall

22916

Females

9244

F18-39

9244

30K→20M

18.6 - 20.0 mi

Top 76%
Γ—5
+64ft-50ft

Overall

22076

Females

8889

F18-39

8889

20M→21M

20.0 - 21.0 mi

Top 72%
Γ—8
+106ft-24ft

Overall

20900

Females

8323

F18-39

8323

21M→35K

21.0 - 21.8 mi

Top 83%
Γ—7
+17ft-86ft

Overall

24118

Females

10050

F18-39

10050

35K→23M

21.8 - 23.0 mi

Top 80%
Γ—5
+23ft-63ft

Overall

23080

Females

9558

F18-39

9558

23M→24M

23.0 - 24.0 mi

Top 81%
Γ—6
+12ft-82ft

Overall

23576

Females

9848

F18-39

9848

24M→40K

24.0 - 24.9 mi

Top 78%
Γ—1
+6ft-20ft

Overall

22502

Females

9355

F18-39

9355

40K→25.2M

24.9 - 25.2 mi

Top 71%
Γ—1
+13ft-16ft

Overall

20486

Females

8337

F18-39

8337

25.2M→FINISH

25.2 - 26.2 mi

Top 65%
Γ—2
+22ft-21ft

Overall

18725

Females

7431

F18-39

7431

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1763
Passed By
956
Net Change
+807
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#24695
5K β†’ 10K169280-111#24695#24806
10K β†’ 15K140118+22#24806#24784
15K β†’ 20K79258-179#24784#24963
20K β†’ HALF2034-14#24963#24977
HALF β†’ 25K60160-100#24977#25077
25K β†’ 30K3734+369#25077#24708
30K β†’ 20M1931+192#24708#24516
20M β†’ 21M2020+202#24516#24314
21M β†’ 35K34340#24314#24314
35K β†’ 23M11726+91#24314#24223
23M β†’ 24M7125+46#24223#24177
24M β†’ 40K9014+76#24177#24101
40K β†’ 25.2M530+53#24101#24048
25.2M β†’ FINISH1622+160#24048#23888
TOTALS1763956+807
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

Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing