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BOSTON MARATHON 2026

Katelyn Sullivan

Bib: 29760•F

MA

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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
33:12
3.11 mi
Rank: #27508
Start → 5K
33:12 | 10:42/mi
10K
1:06:26
6.21 mi
Rank: #27386 (+122)
5K → 10K
33:14 | 10:42/mi
15K
1:40:17
9.32 mi
Rank: #27355 (+31)
10K → 15K
33:51 | 10:54/mi
20K
2:15:40
12.43 mi
Rank: #27402 (-47)
15K → 20K
35:23 | 11:24/mi
HALF
2:23:23
13.11 mi
Rank: #27429 (-27)
20K → HALF
7:43 | 11:20/mi
25K
2:52:11
15.53 mi
Rank: #27430 (-1)
HALF → 25K
28:48 | 11:53/mi
30K
3:29:29
18.64 mi
Rank: #27312 (+118)
25K → 30K
37:18 | 12:01/mi
20M
3:48:09
20.00 mi
Rank: #27414 (-102)
30K → 20M
18:40 | 13:45/mi
21M
4:00:00
21.00 mi
Rank: #27306 (+108)
20M → 21M
11:51 | 11:51/mi
35K
4:08:46
21.75 mi
Rank: #27279 (+27)
21M → 35K
8:46 | 11:44/mi
23M
4:23:53
23.00 mi
Rank: #27238 (+41)
35K → 23M
15:07 | 12:05/mi
24M
4:35:11
24.00 mi
Rank: #27184 (+54)
23M → 24M
11:18 | 11:18/mi
40K
4:45:07
24.85 mi
Rank: #27139 (+45)
24M → 40K
9:56 | 11:38/mi
25.2M
4:49:33
25.20 mi
Rank: #27132 (+7)
40K → 25.2M
4:26 | 12:52/mi
FINISH
5:00:26
26.22 mi
Rank: #27091 (+41)
25.2M → FINISH
10:53 | 10:41/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:23:23
Pace10:57 /mi
2nd Half
Distance13.11 mi
Time2:37:03
Pace11:59 /mi
📊Positive Split: 9.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi12:04:0733:1210:4233:12
10:42
-
10K
6.21 mi12:37:211:06:2610:4233:14
10:42
0:00
15K
9.32 mi13:11:121:40:1710:4633:51
10:54
+0:12
20K
12.43 mi13:46:352:15:4010:5635:23
11:24
+0:30
HALF
13.11 mi13:54:182:23:2310:577:43
11:20
-0:04
25K
15.53 mi14:23:062:52:1111:0628:48
11:53
+0:33
30K
18.64 mi15:00:243:29:2911:1537:18
12:01
+0:08
20M
20.00 mi15:19:043:48:0911:2518:40
13:45
+1:44
21M
21.00 mi15:30:554:00:0011:2611:51
11:51
-1:54
35K
21.75 mi15:39:414:08:4611:278:46
11:44
-0:07
23M
23.00 mi15:54:484:23:5311:2915:07
12:05
+0:21
24M
24.00 mi16:06:064:35:1111:2811:18
11:18
-0:47
40K
24.85 mi16:16:024:45:0711:299:56
11:38
+0:20
25.2M
25.20 mi16:20:284:49:3311:304:26
12:52
+1:14
FINISH
26.22 mi16:31:215:00:2611:2910:53
10:41
-2:11

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

10:41 /mi

Average Pace

11:28 /mi

Slowest Pace

13:45 /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

1:51:10

37% of race

Time at Steady Pace

2:31:03

50% of race

Time at Slower Pace

38:13

13% of race

Average Pace: 11:27 /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 mi12:04:0733:1210:4233:12
10:42
#27508
10K
6.21 mi12:37:211:06:2610:4233:14
10:42
#27386
15K
9.32 mi13:11:121:40:1710:4633:51
10:54
#27355
20K
12.43 mi13:46:352:15:4010:5635:23
11:24
#27402
HALF
13.11 mi13:54:182:23:2310:577:43
11:20
#27429
25K
15.53 mi14:23:062:52:1111:0628:48
11:53
#27430
30K
18.64 mi15:00:243:29:2911:1537:18
12:01
#27312
20M
20.00 mi15:19:043:48:0911:2518:40
13:45
#27414
21M
21.00 mi15:30:554:00:0011:2611:51
11:51
#27306
35K
21.75 mi15:39:414:08:4611:278:46
11:44
#27279
23M
23.00 mi15:54:484:23:5311:2915:07
12:05
#27238
24M
24.00 mi16:06:064:35:1111:2811:18
11:18
#27184
40K
24.85 mi16:16:024:45:0711:299:56
11:38
#27139
25.2M
25.20 mi16:20:284:49:3311:304:26
12:52
#27132
FINISH
26.22 mi16:31:215:00:2611:2910:53
10:41
#27091
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 mi27508115661156627312(Top 94%)11495(Top 91%)11495(Top 201%)
10K6.21 mi3.10 mi27386+12211510+5611510+5627259(Top 94%)11448(Top 91%)11448(Top 200%)
15K9.32 mi3.11 mi27355+3111513-311513-327312(Top 94%)11495(Top 91%)11495(Top 201%)
20K12.43 mi3.11 mi27402-4711537-2411537-2427425(Top 95%)11564(Top 92%)11564(Top 202%)
HALF13.11 mi0.68 mi27429-2711557-2011557-2027703(Top 95%)11769(Top 94%)11769(Top 206%)
25K15.53 mi2.42 mi27430-111561-411561-427390(Top 94%)11598(Top 92%)11598(Top 203%)
30K18.64 mi3.11 mi27312+11811509+5211509+5226781(Top 92%)11340(Top 90%)11340(Top 198%)
20M20.00 mi1.36 mi27414-10211591-8211591-8227966(Top 96%)12027(Top 96%)12027(Top 210%)
21M21.00 mi1.00 mi27306+10811534+5711534+5724833(Top 86%)10414(Top 83%)10414(Top 182%)
35K21.75 mi0.75 mi27279+2711520+1411520+1426409(Top 91%)11248(Top 89%)11248(Top 197%)
23M23.00 mi1.25 mi27238+4111504+1611504+1626228(Top 90%)11179(Top 89%)11179(Top 196%)
24M24.00 mi1.00 mi27184+5411483+2111483+2125635(Top 88%)10921(Top 87%)10921(Top 191%)
40K24.85 mi0.85 mi27139+4511471+1211471+1225309(Top 87%)10800(Top 86%)10800(Top 189%)
25.2M25.20 mi0.35 mi27132+711470+111470+125887(Top 89%)11065(Top 88%)11065(Top 194%)
FINISH26.22 mi1.02 mi27091+4111453+1711453+1725481(Top 88%)10882(Top 87%)10882(Top 190%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 94%
×21
+97ft-345ft

Overall

27312

Females

11495

F18-39

11495

5K→10K

3.1 - 6.2 mi

Top 94%
×5
+79ft-138ft

Overall

27259

Females

11448

F18-39

11448

10K→15K

6.2 - 9.3 mi

Top 94%
×3
+67ft-78ft

Overall

27312

Females

11495

F18-39

11495

15K→20K

9.3 - 12.4 mi

Top 95%
×5
+106ft-86ft

Overall

27425

Females

11564

F18-39

11564

20K→HALF

12.4 - 13.1 mi

Top 95%
×2
+19ft-37ft

Overall

27703

Females

11769

F18-39

11769

HALF→25K

13.1 - 15.5 mi

Top 94%
×4
+66ft-88ft

Overall

27390

Females

11598

F18-39

11598

25K→30K

15.5 - 18.6 mi

Top 92%
×9
+181ft-148ft

Overall

26781

Females

11340

F18-39

11340

30K→20M

18.6 - 20.0 mi

Top 96%
×5
+64ft-50ft

Overall

27966

Females

12027

F18-39

12027

20M→21M

20.0 - 21.0 mi

Top 86%
×8
+106ft-24ft

Overall

24833

Females

10414

F18-39

10414

21M→35K

21.0 - 21.8 mi

Top 91%
×7
+17ft-86ft

Overall

26409

Females

11248

F18-39

11248

35K→23M

21.8 - 23.0 mi

Top 90%
×5
+23ft-63ft

Overall

26228

Females

11179

F18-39

11179

23M→24M

23.0 - 24.0 mi

Top 88%
×6
+12ft-82ft

Overall

25635

Females

10921

F18-39

10921

24M→40K

24.0 - 24.9 mi

Top 87%
×1
+6ft-20ft

Overall

25309

Females

10800

F18-39

10800

40K→25.2M

24.9 - 25.2 mi

Top 89%
×1
+13ft-16ft

Overall

25887

Females

11065

F18-39

11065

25.2M→FINISH

25.2 - 26.2 mi

Top 88%
×2
+22ft-21ft

Overall

25481

Females

10882

F18-39

10882

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1055*
Passed By
638
Net Change
+417
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#27508
5K → 10K223*101+122#27508#27386
10K → 15K133102+31#27386#27355
15K → 20K82129-47#27355#27402
20K → HALF2653-27#27402#27429
HALF → 25K7273-1#27429#27430
25K → 30K14729+118#27430#27312
30K → 20M9111-102#27312#27414
20M → 21M1091+108#27414#27306
21M → 35K347+27#27306#27279
35K → 23M5312+41#27279#27238
23M → 24M617+54#27238#27184
24M → 40K505+45#27184#27139
40K → 25.2M103+7#27139#27132
25.2M → FINISH465+41#27132#27091
TOTALS1055*638+417

* 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

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