Boston Marathon logo
BOSTON MARATHON 2024

Jacy Clapp

Bib: 25372•F

MA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 25550
Gender (Female)
#0 / 10924
Division (F18-39)
#0 / 4660
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:33
Rank: #21772
Start → 5K
29:33 | 9:31/mi
10K· 6.21 mi
57:36
Rank: #20891 (+881)
5K → 10K
28:03 | 9:02/mi
15K· 9.32 mi
1:25:58
Rank: #20398 (+493)
10K → 15K
28:22 | 9:08/mi
20K· 12.43 mi
1:55:24
Rank: #20063 (+335)
15K → 20K
29:26 | 9:28/mi
Half· 13.11 mi
2:01:54
Rank: #20072 (-9)
20K → Half
6:30 | 9:32/mi
25K· 15.53 mi
2:25:37
Rank: #19774 (+298)
Half → 25K
23:43 | 9:47/mi
30K· 18.64 mi
2:59:25
Rank: #19760 (+14)
25K → 30K
33:48 | 10:53/mi
20M
3:14:47
Rank: #19755 (+5)
30K → 20M
15:22 | 11:18/mi
21M
3:27:22
Rank: #19754 (+1)
20M → 21M
12:35 | 12:35/mi
35K· 21.75 mi
3:36:26
Rank: #19856 (-102)
21M → 35K
9:04 | 12:07/mi
23M
3:52:18
Rank: #20015 (-159)
35K → 23M
15:52 | 12:40/mi
24M
4:04:01
Rank: #20045 (-30)
23M → 24M
11:43 | 11:43/mi
40K· 24.85 mi
4:14:04
Rank: #20054 (-9)
24M → 40K
10:03 | 11:45/mi
25.2M
4:19:07
Rank: #20089 (-35)
40K → 25.2M
5:03 | 14:39/mi
Finish· 26.22 mi
4:30:02
Rank: #20102 (-13)
25.2M → Finish
10:55 | 10:43/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
Time2:01:54
Pace9:18 /mi
2nd Half
Distance13.11 mi
Time2:28:08
Pace11:18 /mi
📊Positive Split: 21.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:46:2529:339:3129:33
9:31
-
10K
6.21 mi12:14:2857:369:1628:03
9:02
-0:29
15K
9.32 mi12:42:501:25:589:1328:22
9:08
+0:06
20K
12.43 mi13:12:161:55:249:1729:26
9:28
+0:20
Half
13.11 mi13:18:462:01:549:186:30
9:32
+0:04
25K
15.53 mi13:42:292:25:379:2223:43
9:47
+0:15
30K
18.64 mi14:16:172:59:259:3733:48
10:53
+1:06
20M
20.00 mi14:31:393:14:479:4415:22
11:18
+0:25
21M
21.00 mi14:44:143:27:229:5212:35
12:35
+1:17
35K
21.75 mi14:53:183:36:269:579:04
12:07
-0:28
23M
23.00 mi15:09:103:52:1810:0615:52
12:40
+0:33
24M
24.00 mi15:20:534:04:0110:1011:43
11:43
-0:57
40K
24.85 mi15:30:564:14:0410:1310:03
11:45
+0:02
25.2M
25.20 mi15:35:594:19:0710:175:03
14:39
+2:54
Finish
26.22 mi15:46:544:30:0210:1810:55
10:43
-3:56

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

9:02 /mi

Average Pace

10:18 /mi

Slowest Pace

14:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:25:37

54% of race

Time at Steady Pace

1:00:05

22% of race

Time at Slower Pace

1:04:20

24% of race

Average Pace: 10:18 /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 mi11:46:2529:339:3129:33
9:31
#21772
10K
6.21 mi12:14:2857:369:1628:03
9:02
#20891
15K
9.32 mi12:42:501:25:589:1328:22
9:08
#20398
20K
12.43 mi13:12:161:55:249:1729:26
9:28
#20063
Half
13.11 mi13:18:462:01:549:186:30
9:32
#20072
25K
15.53 mi13:42:292:25:379:2223:43
9:47
#19774
30K
18.64 mi14:16:172:59:259:3733:48
10:53
#19760
20M
20.00 mi14:31:393:14:479:4415:22
11:18
#19755
21M
21.00 mi14:44:143:27:229:5212:35
12:35
#19754
35K
21.75 mi14:53:183:36:269:579:04
12:07
#19856
23M
23.00 mi15:09:103:52:1810:0615:52
12:40
#20015
24M
24.00 mi15:20:534:04:0110:1011:43
11:43
#20045
40K
24.85 mi15:30:564:14:0410:1310:03
11:45
#20054
25.2M
25.20 mi15:35:594:19:0710:175:03
14:39
#20089
Finish
26.22 mi15:46:544:30:0210:1810:55
10:43
#20102
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi217728795879519456(Top 76%)7499(Top 69%)7499(Top 161%)
10K6.21 mi3.10 mi20891+8818331+4648331+46419856(Top 78%)7759(Top 71%)7759(Top 167%)
15K9.32 mi3.11 mi20398+4938036+2958036+29519456(Top 76%)7499(Top 69%)7499(Top 161%)
20K12.43 mi3.11 mi20063+3357857+1797857+17919115(Top 75%)7332(Top 67%)7332(Top 157%)
Half13.11 mi0.68 mi20072-97864-77864-720179(Top 79%)7981(Top 73%)7981(Top 171%)
25K15.53 mi2.42 mi19774+2987726+1387726+13818498(Top 72%)7094(Top 65%)7094(Top 152%)
30K18.64 mi3.11 mi19760+147765-397765-3919710(Top 77%)7960(Top 73%)7960(Top 171%)
20M20.00 mi1.36 mi19755+57791-267791-2620009(Top 78%)8227(Top 75%)8227(Top 177%)
21M21.00 mi1.00 mi19754+17821-307821-3020025(Top 78%)8340(Top 76%)8340(Top 179%)
35K21.75 mi0.75 mi19856-1027892-717892-7122023(Top 86%)9365(Top 86%)9365(Top 201%)
23M23.00 mi1.25 mi20015-1597994-1027994-10222007(Top 86%)9375(Top 86%)9375(Top 201%)
24M24.00 mi1.00 mi20045-308034-408034-4020846(Top 82%)8859(Top 81%)8859(Top 190%)
40K24.85 mi0.85 mi20054-98058-248058-2419929(Top 78%)8474(Top 78%)8474(Top 182%)
25.2M25.20 mi0.35 mi20089-358080-228080-2222574(Top 88%)9728(Top 89%)9728(Top 209%)
Finish26.22 mi1.02 mi20102-138111-318111-3120597(Top 81%)8768(Top 80%)8768(Top 188%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21stories
+97ft-345ft

Overall

19456

Females

7499

F18-39

7499

5K→10K

3.1 - 6.2 mi

Top 78%
×5stories
+79ft-138ft

Overall

19856

Females

7759

F18-39

7759

10K→15K

6.2 - 9.3 mi

Top 76%
×3stories
+67ft-78ft

Overall

19456

Females

7499

F18-39

7499

15K→20K

9.3 - 12.4 mi

Top 75%
×5stories
+106ft-86ft

Overall

19115

Females

7332

F18-39

7332

20K→Half

12.4 - 13.1 mi

Top 79%
×2stories
+19ft-37ft

Overall

20179

Females

7981

F18-39

7981

Half→25K

13.1 - 15.5 mi

Top 72%
×4stories
+66ft-88ft

Overall

18498

Females

7094

F18-39

7094

25K→30K

15.5 - 18.6 mi

Top 77%
×9stories
+181ft-148ft

Overall

19710

Females

7960

F18-39

7960

30K→20M

18.6 - 20.0 mi

Top 78%
×5stories
+64ft-50ft

Overall

20009

Females

8227

F18-39

8227

20M→21M

20.0 - 21.0 mi

Top 78%
×8stories
+106ft-24ft

Overall

20025

Females

8340

F18-39

8340

21M→35K

21.0 - 21.8 mi

Top 86%
×7stories
+17ft-86ft

Overall

22023

Females

9365

F18-39

9365

35K→23M

21.8 - 23.0 mi

Top 86%
×5stories
+23ft-63ft

Overall

22007

Females

9375

F18-39

9375

23M→24M

23.0 - 24.0 mi

Top 82%
×6stories
+12ft-82ft

Overall

20846

Females

8859

F18-39

8859

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

19929

Females

8474

F18-39

8474

40K→25.2M

24.9 - 25.2 mi

Top 88%
×1story
+13ft-16ft

Overall

22574

Females

9728

F18-39

9728

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2stories
+22ft-21ft

Overall

20597

Females

8768

F18-39

8768

Passing Analysis

Category:
Athletes Passed
2813
Passed By
1143
Net Change
+1670
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21772
5K → 10K90221+881#21772#20891
10K → 15K52128+493#20891#20398
15K → 20K39257+335#20398#20063
20K → Half3746-9#20063#20072
Half → 25K33638+298#20072#19774
25K → 30K182168+14#19774#19760
30K → 20M8984+5#19760#19755
20M → 21M8382+1#19755#19754
21M → 35K31133-102#19754#19856
35K → 23M54213-159#19856#20015
23M → 24M5989-30#20015#20045
24M → 40K5766-9#20045#20054
40K → 25.2M1853-35#20054#20089
25.2M → Finish5265-13#20089#20102
TOTALS28131143+1670
📊

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