Boston Marathon logo
BOSTON MARATHON 2024

Aleida Castillo

Bib: 29355•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

Start
0:00:00
Race begins
5K· 3.11 mi
28:01
Rank: #20145
Start → 5K
28:01 | 9:01/mi
10K· 6.21 mi
57:26
Rank: #20793 (-648)
5K → 10K
29:25 | 9:28/mi
15K· 9.32 mi
1:28:04
Rank: #21078 (-285)
10K → 15K
30:38 | 9:52/mi
20K· 12.43 mi
1:58:59
Rank: #20884 (+194)
15K → 20K
30:55 | 9:57/mi
Half· 13.11 mi
2:05:43
Rank: #20872 (+12)
20K → Half
6:44 | 9:52/mi
25K· 15.53 mi
2:30:46
Rank: #20710 (+162)
Half → 25K
25:03 | 10:20/mi
30K· 18.64 mi
3:05:53
Rank: #20693 (+17)
25K → 30K
35:07 | 11:18/mi
20M
3:21:31
Rank: #20662 (+31)
30K → 20M
15:38 | 11:30/mi
21M
3:33:27
Rank: #20546 (+116)
20M → 21M
11:56 | 11:56/mi
35K· 21.75 mi
3:42:08
Rank: #20564 (-18)
21M → 35K
8:41 | 11:36/mi
23M
3:56:11
Rank: #20479 (+85)
35K → 23M
14:03 | 11:13/mi
24M
4:07:32
Rank: #20450 (+29)
23M → 24M
11:21 | 11:21/mi
40K· 24.85 mi
4:16:48
Rank: #20348 (+102)
24M → 40K
9:16 | 10:50/mi
25.2M
4:21:27
Rank: #20342 (+6)
40K → 25.2M
4:39 | 13:29/mi
Finish· 26.22 mi
4:32:09
Rank: #20309 (+33)
25.2M → Finish
10:42 | 10:30/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
Time2:05:43
Pace9:35 /mi
2nd Half
Distance13.11 mi
Time2:26:26
Pace11:10 /mi
📊Positive Split: 16.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:3528:019:0128:01
9:01
-
10K
6.21 mi12:19:0057:269:1529:25
9:28
+0:27
15K
9.32 mi12:49:381:28:049:2730:38
9:52
+0:24
20K
12.43 mi13:20:331:58:599:3430:55
9:57
+0:05
Half
13.11 mi13:27:172:05:439:356:44
9:52
-0:05
25K
15.53 mi13:52:202:30:469:4225:03
10:20
+0:28
30K
18.64 mi14:27:273:05:539:5835:07
11:18
+0:58
20M
20.00 mi14:43:053:21:3110:0515:38
11:30
+0:12
21M
21.00 mi14:55:013:33:2710:1011:56
11:56
+0:26
35K
21.75 mi15:03:423:42:0810:138:41
11:36
-0:20
23M
23.00 mi15:17:453:56:1110:1614:03
11:13
-0:23
24M
24.00 mi15:29:064:07:3210:1911:21
11:21
+0:08
40K
24.85 mi15:38:224:16:4810:209:16
10:50
-0:31
25.2M
25.20 mi15:43:014:21:2710:234:39
13:29
+2:39
Finish
26.22 mi15:53:434:32:0910:2310:42
10:30
-2:59

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

10:23 /mi

Slowest Pace

13:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:05:43

46% of race

Time at Steady Pace

1:45:32

39% of race

Time at Slower Pace

40:54

15% of race

Average Pace: 10:23 /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 mi11:49:3528:019:0128:01
9:01
#20145
10K
6.21 mi12:19:0057:269:1529:25
9:28
#20793
15K
9.32 mi12:49:381:28:049:2730:38
9:52
#21078
20K
12.43 mi13:20:331:58:599:3430:55
9:57
#20884
Half
13.11 mi13:27:172:05:439:356:44
9:52
#20872
25K
15.53 mi13:52:202:30:469:4225:03
10:20
#20710
30K
18.64 mi14:27:273:05:539:5835:07
11:18
#20693
20M
20.00 mi14:43:053:21:3110:0515:38
11:30
#20662
21M
21.00 mi14:55:013:33:2710:1011:56
11:56
#20546
35K
21.75 mi15:03:423:42:0810:138:41
11:36
#20564
23M
23.00 mi15:17:453:56:1110:1614:03
11:13
#20479
24M
24.00 mi15:29:064:07:3210:1911:21
11:21
#20450
40K
24.85 mi15:38:224:16:4810:209:16
10:50
#20348
25.2M
25.20 mi15:43:014:21:2710:234:39
13:29
#20342
Finish
26.22 mi15:53:434:32:0910:2310:42
10:30
#20309
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi201457952795221591(Top 85%)8646(Top 79%)8646(Top 728%)
10K6.21 mi3.10 mi20793-6488270-3188270-31821276(Top 83%)8522(Top 78%)8522(Top 718%)
15K9.32 mi3.11 mi21078-2858406-1368406-13621591(Top 85%)8646(Top 79%)8646(Top 728%)
20K12.43 mi3.11 mi20884+1948297+1098297+10920465(Top 80%)8072(Top 74%)8072(Top 680%)
Half13.11 mi0.68 mi20872+128289+88289+821140(Top 83%)8478(Top 78%)8478(Top 714%)
25K15.53 mi2.42 mi20710+1628225+648225+6419999(Top 78%)7924(Top 73%)7924(Top 668%)
30K18.64 mi3.11 mi20693+178261-368261-3620632(Top 81%)8441(Top 77%)8441(Top 711%)
20M20.00 mi1.36 mi20662+318280-198280-1920406(Top 80%)8441(Top 77%)8441(Top 711%)
21M21.00 mi1.00 mi20546+1168243+378243+3718668(Top 73%)7658(Top 70%)7658(Top 645%)
35K21.75 mi0.75 mi20564-188274-318274-3121089(Top 83%)8885(Top 81%)8885(Top 749%)
23M23.00 mi1.25 mi20479+858254+208254+2019008(Top 74%)7895(Top 72%)7895(Top 665%)
24M24.00 mi1.00 mi20450+298260-68260-620107(Top 79%)8495(Top 78%)8495(Top 716%)
40K24.85 mi0.85 mi20348+1028214+468214+4617678(Top 69%)7360(Top 67%)7360(Top 620%)
25.2M25.20 mi0.35 mi20342+68221-78221-720697(Top 81%)8859(Top 81%)8859(Top 746%)
Finish26.22 mi1.02 mi20309+338223-28223-220029(Top 78%)8492(Top 78%)8492(Top 715%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21stories
+97ft-345ft

Overall

21591

Females

8646

F50-54

8646

5K→10K

3.1 - 6.2 mi

Top 83%
×5stories
+79ft-138ft

Overall

21276

Females

8522

F50-54

8522

10K→15K

6.2 - 9.3 mi

Top 85%
×3stories
+67ft-78ft

Overall

21591

Females

8646

F50-54

8646

15K→20K

9.3 - 12.4 mi

Top 80%
×5stories
+106ft-86ft

Overall

20465

Females

8072

F50-54

8072

20K→Half

12.4 - 13.1 mi

Top 83%
×2stories
+19ft-37ft

Overall

21140

Females

8478

F50-54

8478

Half→25K

13.1 - 15.5 mi

Top 78%
×4stories
+66ft-88ft

Overall

19999

Females

7924

F50-54

7924

25K→30K

15.5 - 18.6 mi

Top 81%
×9stories
+181ft-148ft

Overall

20632

Females

8441

F50-54

8441

30K→20M

18.6 - 20.0 mi

Top 80%
×5stories
+64ft-50ft

Overall

20406

Females

8441

F50-54

8441

20M→21M

20.0 - 21.0 mi

Top 73%
×8stories
+106ft-24ft

Overall

18668

Females

7658

F50-54

7658

21M→35K

21.0 - 21.8 mi

Top 83%
×7stories
+17ft-86ft

Overall

21089

Females

8885

F50-54

8885

35K→23M

21.8 - 23.0 mi

Top 74%
×5stories
+23ft-63ft

Overall

19008

Females

7895

F50-54

7895

23M→24M

23.0 - 24.0 mi

Top 79%
×6stories
+12ft-82ft

Overall

20107

Females

8495

F50-54

8495

24M→40K

24.0 - 24.9 mi

Top 69%
×1story
+6ft-20ft

Overall

17678

Females

7360

F50-54

7360

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

20697

Females

8859

F50-54

8859

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2stories
+22ft-21ft

Overall

20029

Females

8492

F50-54

8492

Passing Analysis

Category:
Athletes Passed
1617
Passed By
1781
Net Change
-164
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20145
5K → 10K77725-648#20145#20793
10K → 15K117402-285#20793#21078
15K → 20K29298+194#21078#20884
20K → Half4129+12#20884#20872
Half → 25K22664+162#20872#20710
25K → 30K184167+17#20710#20693
30K → 20M9766+31#20693#20662
20M → 21M13620+116#20662#20546
21M → 35K3856-18#20546#20564
35K → 23M12540+85#20564#20479
23M → 24M7142+29#20479#20450
24M → 40K11513+102#20450#20348
40K → 25.2M2923+6#20348#20342
25.2M → Finish6936+33#20342#20309
TOTALS16171781-164
📊

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