Boston Marathon logo
BOSTON MARATHON 2024

Kathlyn Prendergast

Bib: 26444•F

MA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Division (F50-54)
#0 / 1187
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
11:12/mi
34:48
↑ 97↓ 3451.5%
10K· 6.21 mi
11:47/mi
1:11:24
↑ 79↓ 1380.4%
15K· 9.32 mi
12:33/mi
1:50:23
↑ 67↓ 78
20K· 12.43 mi
14:16/mi
2:34:44
↑ 106↓ 860.1%
Half· 13.11 mi
12:26/mi
2:43:13
↑ 19↓ 370.5%
25K· 15.53 mi
15:14/mi
3:20:09
↑ 66↓ 880.2%
30K· 18.64 mi
15:38/mi
4:08:42
↑ 181↓ 1480.2%
20M
15:23/mi
4:29:36
↑ 64↓ 500.2%
21M
16:15/mi
4:45:51
↑ 106↓ 241.6%
35K· 21.75 mi
14:05/mi
4:56:23
↑ 17↓ 861.7%
23M
15:26/mi
5:15:43
↑ 23↓ 630.6%
24M
13:26/mi
5:29:09
↓ 821.3%
40K· 24.85 mi
13:54/mi
5:41:02
↓ 200.3%
25.2M
18:57/mi
5:47:34
↑ 13↓ 160.2%
Finish· 26.22 mi
11:53/mi
5:59:41
↑ 22↓ 21

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
Time2:43:13
Pace12:27 /mi
2nd Half
Distance13.11 mi
Time3:16:28
Pace14:59 /mi
📊Positive Split: 20.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:1734:4811:1234:48
11:12
-
10K
6.21 mi12:30:531:11:2411:2936:36
11:47
+0:35
15K
9.32 mi13:09:521:50:2311:5138:59
12:33
+0:46
20K
12.43 mi13:54:132:34:4412:2744:21
14:16
+1:43
Half
13.11 mi14:02:422:43:1312:278:29
12:26
-1:50
25K
15.53 mi14:39:383:20:0912:5336:56
15:14
+2:48
30K
18.64 mi15:28:114:08:4213:2048:33
15:38
+0:24
20M
20.00 mi15:49:054:29:3613:2920:54
15:23
-0:15
21M
21.00 mi16:05:204:45:5113:3716:15
16:15
+0:52
35K
21.75 mi16:15:524:56:2313:3810:32
14:05
-2:10
23M
23.00 mi16:35:125:15:4313:4419:20
15:26
+1:21
24M
24.00 mi16:48:385:29:0913:4313:26
13:26
-2:00
40K
24.85 mi17:00:315:41:0213:4311:53
13:54
+0:28
25.2M
25.20 mi17:07:035:47:3413:486:32
18:57
+5:03
Finish
26.22 mi17:19:105:59:4113:4412:07
11:53
-7:04

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

11:12 /mi

Average Pace

13:44 /mi

Slowest Pace

18:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:10:59

36% of race

Time at Steady Pace

1:20:12

22% of race

Time at Slower Pace

2:28:30

41% of race

Average Pace: 13:43 /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 mi11:54:1734:4811:1234:48
11:12
#25013
10K
6.21 mi12:30:531:11:2411:2936:36
11:47
#25022
15K
9.32 mi13:09:521:50:2311:5138:59
12:33
#25070
20K
12.43 mi13:54:132:34:4412:2744:21
14:16
#25243
Half
13.11 mi14:02:422:43:1312:278:29
12:26
#25238
25K
15.53 mi14:39:383:20:0912:5336:56
15:14
#25313
30K
18.64 mi15:28:114:08:4213:2048:33
15:38
#25340
20M
20.00 mi15:49:054:29:3613:2920:54
15:23
#25348
21M
21.00 mi16:05:204:45:5113:3716:15
16:15
#25352
35K
21.75 mi16:15:524:56:2313:3810:32
14:05
#25345
23M
23.00 mi16:35:125:15:4313:4419:20
15:26
#25355
24M
24.00 mi16:48:385:29:0913:4313:26
13:26
#25338
40K
24.85 mi17:00:315:41:0213:4311:53
13:54
#25325
25.2M
25.20 mi17:07:035:47:3413:486:32
18:57
#25354
Finish
26.22 mi17:19:105:59:4113:4412:07
11:53
#25333
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi25013105781057825096(Top 98%)10632(Top 97%)10632(Top 896%)
10K6.21 mi3.10 mi25022-910576+210576+224997(Top 98%)10565(Top 97%)10565(Top 890%)
15K9.32 mi3.11 mi25070-4810607-3110607-3125096(Top 98%)10632(Top 97%)10632(Top 896%)
20K12.43 mi3.11 mi25243-17310724-11710724-11725427(Top 100%)10857(Top 99%)10857(Top 915%)
Half13.11 mi0.68 mi25238+510719+510719+524881(Top 97%)10557(Top 97%)10557(Top 889%)
25K15.53 mi2.42 mi25313-7510776-5710776-5725386(Top 99%)10849(Top 99%)10849(Top 914%)
30K18.64 mi3.11 mi25340-2710801-2510801-2525229(Top 99%)10798(Top 99%)10798(Top 910%)
20M20.00 mi1.36 mi25348-810807-610807-624968(Top 98%)10687(Top 98%)10687(Top 900%)
21M21.00 mi1.00 mi25352-410813-610813-624676(Top 97%)10575(Top 97%)10575(Top 891%)
35K21.75 mi0.75 mi25345+710809+410809+424360(Top 95%)10472(Top 96%)10472(Top 882%)
23M23.00 mi1.25 mi25355-1010817-810817-824886(Top 97%)10691(Top 98%)10691(Top 901%)
24M24.00 mi1.00 mi25338+1710808+910808+923624(Top 92%)10203(Top 93%)10203(Top 860%)
40K24.85 mi0.85 mi25325+1310802+610802+623524(Top 92%)10172(Top 93%)10172(Top 857%)
25.2M25.20 mi0.35 mi25354-2910823-2110823-2125234(Top 99%)10832(Top 99%)10832(Top 913%)
Finish26.22 mi1.02 mi25333+2110810+1310810+1323100(Top 90%)9993(Top 91%)9993(Top 842%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 98%
×21story building
+97ft-345ft

Overall

25096

Females

10632

F50-54

10632

5K→10K

3.1 - 6.2 mi

Top 98%
×5story building
+79ft-138ft

Overall

24997

Females

10565

F50-54

10565

10K→15K

6.2 - 9.3 mi

Top 98%
×3story building
+67ft-78ft

Overall

25096

Females

10632

F50-54

10632

15K→20K

9.3 - 12.4 mi

Top 100%
×5story building
+106ft-86ft

Overall

25427

Females

10857

F50-54

10857

20K→Half

12.4 - 13.1 mi

Top 97%
×2story building
+19ft-37ft

Overall

24881

Females

10557

F50-54

10557

Half→25K

13.1 - 15.5 mi

Top 99%
×4story building
+66ft-88ft

Overall

25386

Females

10849

F50-54

10849

25K→30K

15.5 - 18.6 mi

Top 99%
×9story building
+181ft-148ft

Overall

25229

Females

10798

F50-54

10798

30K→20M

18.6 - 20.0 mi

Top 98%
×5story building
+64ft-50ft

Overall

24968

Females

10687

F50-54

10687

20M→21M

20.0 - 21.0 mi

Top 97%
×8story building
+106ft-24ft

Overall

24676

Females

10575

F50-54

10575

21M→35K

21.0 - 21.8 mi

Top 95%
×7story building
+17ft-86ft

Overall

24360

Females

10472

F50-54

10472

35K→23M

21.8 - 23.0 mi

Top 97%
×5story building
+23ft-63ft

Overall

24886

Females

10691

F50-54

10691

23M→24M

23.0 - 24.0 mi

Top 92%
×6story building
+12ft-82ft

Overall

23624

Females

10203

F50-54

10203

24M→40K

24.0 - 24.9 mi

Top 92%
×1story
+6ft-20ft

Overall

23524

Females

10172

F50-54

10172

40K→25.2M

24.9 - 25.2 mi

Top 99%
×1story
+13ft-16ft

Overall

25234

Females

10832

F50-54

10832

25.2M→Finish

25.2 - 26.2 mi

Top 90%
×2story building
+22ft-21ft

Overall

23100

Females

9993

F50-54

9993

Passing Analysis

Category:
Athletes Passed
292
Passed By
612
Net Change
-320
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25013
5K → 10K92101-9#25013#25022
10K → 15K4189-48#25022#25070
15K → 20K5178-173#25070#25243
20K → Half127+5#25243#25238
Half → 25K681-75#25238#25313
25K → 30K2653-27#25313#25340
30K → 20M1220-8#25340#25348
20M → 21M913-4#25348#25352
21M → 35K125+7#25352#25345
35K → 23M919-10#25345#25355
23M → 24M225+17#25355#25338
24M → 40K196+13#25338#25325
40K → 25.2M130-29#25325#25354
25.2M → Finish265+21#25354#25333
TOTALS292612-320
📊

Passing Visuals

Category:
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

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing