Boston Marathon logo
BOSTON MARATHON 2023

Kelsey Cathcart

Bib: 26468•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
30:15
Rank: #22755
Start → 5K
30:15 | 9:44/mi
10K· 6.21 mi
58:15
Rank: #21979 (+776)
5K → 10K
28:00 | 9:01/mi
15K· 9.32 mi
1:26:44
Rank: #21712 (+267)
10K → 15K
28:29 | 9:10/mi
20K· 12.43 mi
1:55:51
Rank: #21578 (+134)
15K → 20K
29:07 | 9:22/mi
Half· 13.11 mi
2:02:17
Rank: #21595 (-17)
20K → Half
6:26 | 9:26/mi
25K· 15.53 mi
2:26:25
Rank: #21654 (-59)
Half → 25K
24:08 | 9:57/mi
30K· 18.64 mi
2:59:06
Rank: #21771 (-117)
25K → 30K
32:41 | 10:31/mi
20M
3:14:15
Rank: #21916 (-145)
30K → 20M
15:09 | 11:09/mi
21M
3:26:09
Rank: #21970 (-54)
20M → 21M
11:54 | 11:54/mi
35K· 21.75 mi
3:34:39
Rank: #22074 (-104)
21M → 35K
8:30 | 11:22/mi
23M
3:49:00
Rank: #22132 (-58)
35K → 23M
14:21 | 11:28/mi
24M
4:00:10
Rank: #22197 (-65)
23M → 24M
11:10 | 11:10/mi
40K· 24.85 mi
4:10:08
Rank: #22266 (-69)
24M → 40K
9:58 | 11:39/mi
25.2M
4:14:18
Rank: #22271 (-5)
40K → 25.2M
4:10 | 12:05/mi
Finish· 26.22 mi
4:24:57
Rank: #22298 (-27)
25.2M → Finish
10:39 | 10:27/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
Time2:02:17
Pace9:20 /mi
2nd Half
Distance13.11 mi
Time2:22:40
Pace10:53 /mi
📊Positive Split: 16.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:4030:159:4430:15
9:44
-
10K
6.21 mi12:18:4058:159:2228:00
9:01
-0:43
15K
9.32 mi12:47:091:26:449:1828:29
9:10
+0:09
20K
12.43 mi13:16:161:55:519:1929:07
9:22
+0:12
Half
13.11 mi13:22:422:02:179:206:26
9:26
+0:04
25K
15.53 mi13:46:502:26:259:2624:08
9:57
+0:31
30K
18.64 mi14:19:312:59:069:3632:41
10:31
+0:34
20M
20.00 mi14:34:403:14:159:4315:09
11:09
+0:38
21M
21.00 mi14:46:343:26:099:4911:54
11:54
+0:45
35K
21.75 mi14:55:043:34:399:528:30
11:22
-0:32
23M
23.00 mi15:09:253:49:009:5714:21
11:28
+0:06
24M
24.00 mi15:20:354:00:1010:0011:10
11:10
-0:18
40K
24.85 mi15:30:334:10:0810:049:58
11:39
+0:29
25.2M
25.20 mi15:34:434:14:1810:054:10
12:05
+0:26
Finish
26.22 mi15:45:224:24:5710:0710:39
10:27
-1:38

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

9:01 /mi

Average Pace

10:07 /mi

Slowest Pace

12:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:26:25

55% of race

Time at Steady Pace

43:20

16% of race

Time at Slower Pace

1:15:12

28% of race

Average Pace: 10:06 /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 mi11:50:4030:159:4430:15
9:44
#22755
10K
6.21 mi12:18:4058:159:2228:00
9:01
#21979
15K
9.32 mi12:47:091:26:449:1828:29
9:10
#21712
20K
12.43 mi13:16:161:55:519:1929:07
9:22
#21578
Half
13.11 mi13:22:422:02:179:206:26
9:26
#21595
25K
15.53 mi13:46:502:26:259:2624:08
9:57
#21654
30K
18.64 mi14:19:312:59:069:3632:41
10:31
#21771
20M
20.00 mi14:34:403:14:159:4315:09
11:09
#21916
21M
21.00 mi14:46:343:26:099:4911:54
11:54
#21970
35K
21.75 mi14:55:043:34:399:528:30
11:22
#22074
23M
23.00 mi15:09:253:49:009:5714:21
11:28
#22132
24M
24.00 mi15:20:354:00:1010:0011:10
11:10
#22197
40K
24.85 mi15:30:334:10:0810:049:58
11:39
#22266
25.2M
25.20 mi15:34:434:14:1810:054:10
12:05
#22271
Finish
26.22 mi15:45:224:24:5710:0710:39
10:27
#22298
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi227559258925821199(Top 80%)8342(Top 73%)8342(Top 171%)
10K6.21 mi3.10 mi21979+7768845+4138845+41320941(Top 79%)8228(Top 72%)8228(Top 168%)
15K9.32 mi3.11 mi21712+2678681+1648681+16421199(Top 80%)8342(Top 73%)8342(Top 171%)
20K12.43 mi3.11 mi21578+1348598+838598+8321173(Top 80%)8330(Top 73%)8330(Top 171%)
Half13.11 mi0.68 mi21595-178604-68604-621939(Top 82%)8754(Top 77%)8754(Top 179%)
25K15.53 mi2.42 mi21654-598629-258629-2522117(Top 83%)8902(Top 78%)8902(Top 182%)
30K18.64 mi3.11 mi21771-1178703-748703-7422258(Top 84%)9047(Top 79%)9047(Top 185%)
20M20.00 mi1.36 mi21916-1458802-998802-9922947(Top 86%)9476(Top 83%)9476(Top 194%)
21M21.00 mi1.00 mi21970-548837-358837-3522605(Top 85%)9340(Top 82%)9340(Top 191%)
35K21.75 mi0.75 mi22074-1048905-688905-6823901(Top 90%)10075(Top 88%)10075(Top 206%)
23M23.00 mi1.25 mi22132-588943-388943-3823189(Top 87%)9687(Top 85%)9687(Top 198%)
24M24.00 mi1.00 mi22197-658988-458988-4523343(Top 88%)9820(Top 86%)9820(Top 201%)
40K24.85 mi0.85 mi22266-699034-469034-4623455(Top 88%)9911(Top 87%)9911(Top 203%)
25.2M25.20 mi0.35 mi22271-59043-99043-922666(Top 85%)9484(Top 83%)9484(Top 194%)
Finish26.22 mi1.02 mi22298-279067-249067-2422912(Top 86%)9609(Top 84%)9609(Top 197%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21stories
+97ft-345ft

Overall

21199

Females

8342

F18-39

8342

5K→10K

3.1 - 6.2 mi

Top 79%
×5stories
+79ft-138ft

Overall

20941

Females

8228

F18-39

8228

10K→15K

6.2 - 9.3 mi

Top 80%
×3stories
+67ft-78ft

Overall

21199

Females

8342

F18-39

8342

15K→20K

9.3 - 12.4 mi

Top 80%
×5stories
+106ft-86ft

Overall

21173

Females

8330

F18-39

8330

20K→Half

12.4 - 13.1 mi

Top 82%
×2stories
+19ft-37ft

Overall

21939

Females

8754

F18-39

8754

Half→25K

13.1 - 15.5 mi

Top 83%
×4stories
+66ft-88ft

Overall

22117

Females

8902

F18-39

8902

25K→30K

15.5 - 18.6 mi

Top 84%
×9stories
+181ft-148ft

Overall

22258

Females

9047

F18-39

9047

30K→20M

18.6 - 20.0 mi

Top 86%
×5stories
+64ft-50ft

Overall

22947

Females

9476

F18-39

9476

20M→21M

20.0 - 21.0 mi

Top 85%
×8stories
+106ft-24ft

Overall

22605

Females

9340

F18-39

9340

21M→35K

21.0 - 21.8 mi

Top 90%
×7stories
+17ft-86ft

Overall

23901

Females

10075

F18-39

10075

35K→23M

21.8 - 23.0 mi

Top 87%
×5stories
+23ft-63ft

Overall

23189

Females

9687

F18-39

9687

23M→24M

23.0 - 24.0 mi

Top 88%
×6stories
+12ft-82ft

Overall

23343

Females

9820

F18-39

9820

24M→40K

24.0 - 24.9 mi

Top 88%
×1story
+6ft-20ft

Overall

23455

Females

9911

F18-39

9911

40K→25.2M

24.9 - 25.2 mi

Top 85%
×1story
+13ft-16ft

Overall

22666

Females

9484

F18-39

9484

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2stories
+22ft-21ft

Overall

22912

Females

9609

F18-39

9609

Passing Analysis

Category:
Athletes Passed
1726
Passed By
1269
Net Change
+457
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22755
5K → 10K81034+776#22755#21979
10K → 15K32558+267#21979#21712
15K → 20K19258+134#21712#21578
20K → Half2542-17#21578#21595
Half → 25K84143-59#21595#21654
25K → 30K97214-117#21654#21771
30K → 20M38183-145#21771#21916
20M → 21M4296-54#21916#21970
21M → 35K9113-104#21970#22074
35K → 23M3189-58#22074#22132
23M → 24M2287-65#22132#22197
24M → 40K1988-69#22197#22266
40K → 25.2M1318-5#22266#22271
25.2M → Finish1946-27#22271#22298
TOTALS17261269+457
📊

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