Boston Marathon logo
BOSTON MARATHON 2023

Kara Sullivan

Bib: 26962•F

MA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
36:18
Rank: #26319
Start → 5K
36:18 | 11:41/mi
10K· 6.21 mi
1:14:19
Rank: #26365 (-46)
5K → 10K
38:01 | 12:14/mi
15K· 9.32 mi
1:54:48
Rank: #26428 (-63)
10K → 15K
40:29 | 13:02/mi
20K· 12.43 mi
2:39:14
Rank: #26507 (-79)
15K → 20K
44:26 | 14:18/mi
Half· 13.11 mi
2:48:03
Rank: #26503 (+4)
20K → Half
8:49 | 12:55/mi
25K· 15.53 mi
3:23:44
Rank: #26527 (-24)
Half → 25K
35:41 | 14:43/mi
30K· 18.64 mi
4:09:50
Rank: #26532 (-5)
25K → 30K
46:06 | 14:50/mi
20M
4:29:11
Rank: #26520 (+12)
30K → 20M
19:21 | 14:14/mi
21M
4:43:37
Rank: #26504 (+16)
20M → 21M
14:26 | 14:26/mi
35K· 21.75 mi
4:53:52
Rank: #26500 (+4)
21M → 35K
10:15 | 13:42/mi
23M
5:11:04
Rank: #26480 (+20)
35K → 23M
17:12 | 13:44/mi
24M
5:24:31
Rank: #26460 (+20)
23M → 24M
13:27 | 13:27/mi
40K· 24.85 mi
5:36:10
Rank: #26447 (+13)
24M → 40K
11:39 | 13:38/mi
25.2M
5:41:14
Rank: #26437 (+10)
40K → 25.2M
5:04 | 14:42/mi
Finish· 26.22 mi
5:54:04
Rank: #26423 (+14)
25.2M → Finish
12:50 | 12:36/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:48:03
Pace12:49 /mi
2nd Half
Distance13.11 mi
Time3:06:01
Pace14:11 /mi
📊Positive Split: 10.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:0436:1811:4136:18
11:41
-
10K
6.21 mi12:32:051:14:1911:5838:01
12:14
+0:33
15K
9.32 mi13:12:341:54:4812:1940:29
13:02
+0:48
20K
12.43 mi13:57:002:39:1412:4944:26
14:18
+1:16
Half
13.11 mi14:05:492:48:0312:498:49
12:55
-1:23
25K
15.53 mi14:41:303:23:4413:0735:41
14:43
+1:48
30K
18.64 mi15:27:364:09:5013:2446:06
14:50
+0:07
20M
20.00 mi15:46:574:29:1113:2819:21
14:14
-0:36
21M
21.00 mi16:01:234:43:3713:3014:26
14:26
+0:12
35K
21.75 mi16:11:384:53:5213:3110:15
13:42
-0:44
23M
23.00 mi16:28:505:11:0413:3117:12
13:44
+0:02
24M
24.00 mi16:42:175:24:3113:3113:27
13:27
-0:17
40K
24.85 mi16:53:565:36:1013:3211:39
13:38
+0:11
25.2M
25.20 mi16:59:005:41:1413:325:04
14:42
+1:04
Finish
26.22 mi17:11:505:54:0413:3112:50
12:36
-2:06

Checkpoints & Pacing

📈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

11:41 /mi

Average Pace

13:31 /mi

Slowest Pace

14:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:16:27

39% of race

Time at Steady Pace

52:33

15% of race

Time at Slower Pace

2:45:04

47% of race

Average Pace: 13:30 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:54:0436:1811:4136:18
11:41
#26319
10K
6.21 mi12:32:051:14:1911:5838:01
12:14
#26365
15K
9.32 mi13:12:341:54:4812:1940:29
13:02
#26428
20K
12.43 mi13:57:002:39:1412:4944:26
14:18
#26507
Half
13.11 mi14:05:492:48:0312:498:49
12:55
#26503
25K
15.53 mi14:41:303:23:4413:0735:41
14:43
#26527
30K
18.64 mi15:27:364:09:5013:2446:06
14:50
#26532
20M
20.00 mi15:46:574:29:1113:2819:21
14:14
#26520
21M
21.00 mi16:01:234:43:3713:3014:26
14:26
#26504
35K
21.75 mi16:11:384:53:5213:3110:15
13:42
#26500
23M
23.00 mi16:28:505:11:0413:3117:12
13:44
#26480
24M
24.00 mi16:42:175:24:3113:3113:27
13:27
#26460
40K
24.85 mi16:53:565:36:1013:3211:39
13:38
#26447
25.2M
25.20 mi16:59:005:41:1413:325:04
14:42
#26437
Finish
26.22 mi17:11:505:54:0413:3112:50
12:36
#26423
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi26319112421124226489(Top 100%)11354(Top 99%)11354(Top 232%)
10K6.21 mi3.10 mi26365-4611270-2811270-2826387(Top 99%)11288(Top 99%)11288(Top 231%)
15K9.32 mi3.11 mi26428-6311315-4511315-4526489(Top 100%)11354(Top 99%)11354(Top 232%)
20K12.43 mi3.11 mi26507-7911367-5211367-5226553(Top 100%)11388(Top 100%)11388(Top 233%)
Half13.11 mi0.68 mi26503+4113671136726334(Top 99%)11260(Top 99%)11260(Top 231%)
25K15.53 mi2.42 mi26527-2411380-1311380-1326512(Top 100%)11362(Top 99%)11362(Top 233%)
30K18.64 mi3.11 mi26532-5113801138026373(Top 99%)11300(Top 99%)11300(Top 231%)
20M20.00 mi1.36 mi26520+1211370+1011370+1025972(Top 98%)11110(Top 97%)11110(Top 227%)
21M21.00 mi1.00 mi26504+1611361+911361+925383(Top 95%)10803(Top 95%)10803(Top 221%)
35K21.75 mi0.75 mi26500+411359+211359+226021(Top 98%)11146(Top 98%)11146(Top 228%)
23M23.00 mi1.25 mi26480+2011344+1511344+1525653(Top 96%)10981(Top 96%)10981(Top 225%)
24M24.00 mi1.00 mi26460+2011333+1111333+1125778(Top 97%)11063(Top 97%)11063(Top 227%)
40K24.85 mi0.85 mi26447+1311325+811325+825448(Top 96%)10896(Top 95%)10896(Top 223%)
25.2M25.20 mi0.35 mi26437+1011323+211323+225535(Top 96%)10949(Top 96%)10949(Top 224%)
Finish26.22 mi1.02 mi26423+1411315+811315+825739(Top 97%)11046(Top 97%)11046(Top 226%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 100%
×21stories
+97ft-345ft

Overall

26489

Females

11354

F18-39

11354

5K→10K

3.1 - 6.2 mi

Top 99%
×5stories
+79ft-138ft

Overall

26387

Females

11288

F18-39

11288

10K→15K

6.2 - 9.3 mi

Top 100%
×3stories
+67ft-78ft

Overall

26489

Females

11354

F18-39

11354

15K→20K

9.3 - 12.4 mi

Top 100%
×5stories
+106ft-86ft

Overall

26553

Females

11388

F18-39

11388

20K→Half

12.4 - 13.1 mi

Top 99%
×2stories
+19ft-37ft

Overall

26334

Females

11260

F18-39

11260

Half→25K

13.1 - 15.5 mi

Top 100%
×4stories
+66ft-88ft

Overall

26512

Females

11362

F18-39

11362

25K→30K

15.5 - 18.6 mi

Top 99%
×9stories
+181ft-148ft

Overall

26373

Females

11300

F18-39

11300

30K→20M

18.6 - 20.0 mi

Top 98%
×5stories
+64ft-50ft

Overall

25972

Females

11110

F18-39

11110

20M→21M

20.0 - 21.0 mi

Top 95%
×8stories
+106ft-24ft

Overall

25383

Females

10803

F18-39

10803

21M→35K

21.0 - 21.8 mi

Top 98%
×7stories
+17ft-86ft

Overall

26021

Females

11146

F18-39

11146

35K→23M

21.8 - 23.0 mi

Top 96%
×5stories
+23ft-63ft

Overall

25653

Females

10981

F18-39

10981

23M→24M

23.0 - 24.0 mi

Top 97%
×6stories
+12ft-82ft

Overall

25778

Females

11063

F18-39

11063

24M→40K

24.0 - 24.9 mi

Top 96%
×1story
+6ft-20ft

Overall

25448

Females

10896

F18-39

10896

40K→25.2M

24.9 - 25.2 mi

Top 96%
×1story
+13ft-16ft

Overall

25535

Females

10949

F18-39

10949

25.2M→Finish

25.2 - 26.2 mi

Top 97%
×2stories
+22ft-21ft

Overall

25739

Females

11046

F18-39

11046

Passing Analysis

Category:
Athletes Passed
200
Passed By
304
Net Change
-104
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26319
5K → 10K2672-46#26319#26365
10K → 15K1477-63#26365#26428
15K → 20K786-79#26428#26507
20K → Half62+4#26507#26503
Half → 25K731-24#26503#26527
25K → 30K1520-5#26527#26532
30K → 20M164+12#26532#26520
20M → 21M160+16#26520#26504
21M → 35K62+4#26504#26500
35K → 23M200+20#26500#26480
23M → 24M233+20#26480#26460
24M → 40K163+13#26460#26447
40K → 25.2M111+10#26447#26437
25.2M → Finish173+14#26437#26423
TOTALS200304-104
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

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

.gpx files up to 10MB

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