Boston Marathon logo
BOSTON MARATHON 2024

Maria Castro

Bib: 15302•F

TX

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 25550
Top 34%
Gender (Female)
#0 / 10924
Top 19%
Division (F18-39)
#0 / 4660
Top 33%
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
8:10/mi
25:21
↑ 97↓ 3451.5%
10K· 6.21 mi
8:03/mi
50:21
↑ 79↓ 1380.4%
15K· 9.32 mi
7:54/mi
1:14:54
↑ 67↓ 78
20K· 12.43 mi
7:52/mi
1:39:20
↑ 106↓ 860.1%
Half· 13.11 mi
7:37/mi
1:44:32
↑ 19↓ 370.5%
25K· 15.53 mi
7:53/mi
2:03:39
↑ 66↓ 880.2%
30K· 18.64 mi
8:00/mi
2:28:29
↑ 181↓ 1480.2%
20M
7:59/mi
2:39:20
↑ 64↓ 500.2%
21M
8:15/mi
2:47:35
↑ 106↓ 241.6%
35K· 21.75 mi
7:30/mi
2:53:12
↑ 17↓ 861.7%
23M
7:43/mi
3:02:52
↑ 23↓ 630.6%
24M
7:38/mi
3:10:30
↓ 821.3%
40K· 24.85 mi
7:33/mi
3:16:57
↓ 200.3%
25.2M
8:19/mi
3:19:49
↑ 13↓ 160.2%
Finish· 26.22 mi
7:09/mi
3:27:06
↑ 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 Half
Distance13.11 mi
Time1:44:32
Pace7:58 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:42:34
Pace7:49 /mi
📊Negative Split: 1.9% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:59:0825:218:1025:21
8:10
-
10K
6.21 mi11:24:0850:218:0625:00
8:03
-0:07
15K
9.32 mi11:48:411:14:548:0224:33
7:54
-0:09
20K
12.43 mi12:13:071:39:208:0024:26
7:52
-0:02
Half
13.11 mi12:18:191:44:327:585:12
7:37
-0:15
25K
15.53 mi12:37:262:03:397:5819:07
7:53
+0:16
30K
18.64 mi13:02:162:28:297:5824:50
8:00
+0:07
20M
20.00 mi13:13:072:39:207:5810:51
7:59
-0:01
21M
21.00 mi13:21:222:47:357:598:15
8:15
+0:16
35K
21.75 mi13:26:592:53:127:585:37
7:30
-0:45
23M
23.00 mi13:36:393:02:527:579:40
7:43
+0:13
24M
24.00 mi13:44:173:10:307:567:38
7:38
-0:05
40K
24.85 mi13:50:443:16:577:556:27
7:33
-0:05
25.2M
25.20 mi13:53:363:19:497:562:52
8:19
+0:46
Finish
26.22 mi14:00:533:27:067:547:17
7:09
-1:10

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

7:09 /mi

Average Pace

7:54 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

41:51

20% of race

Time at Steady Pace

2:45:15

80% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:54 /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 mi10:59:0825:218:1025:21
8:10
#15775
10K
6.21 mi11:24:0850:218:0625:00
8:03
#15134
15K
9.32 mi11:48:411:14:548:0224:33
7:54
#14299
20K
12.43 mi12:13:071:39:208:0024:26
7:52
#13382
Half
13.11 mi12:18:191:44:327:585:12
7:37
#13152
25K
15.53 mi12:37:262:03:397:5819:07
7:53
#12409
30K
18.64 mi13:02:162:28:297:5824:50
8:00
#11416
20M
20.00 mi13:13:072:39:207:5810:51
7:59
#10944
21M
21.00 mi13:21:222:47:357:598:15
8:15
#10500
35K
21.75 mi13:26:592:53:127:585:37
7:30
#10246
23M
23.00 mi13:36:393:02:527:579:40
7:43
#9777
24M
24.00 mi13:44:173:10:307:567:38
7:38
#9479
40K
24.85 mi13:50:443:16:577:556:27
7:33
#9175
25.2M
25.20 mi13:53:363:19:497:562:52
8:19
#9029
Finish
26.22 mi14:00:533:27:067:547:17
7:09
#8722
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi157755426542612703(Top 50%)3622(Top 33%)3622(Top 78%)
10K6.21 mi3.10 mi15134+6415014+4125014+41214523(Top 57%)4642(Top 42%)4642(Top 100%)
15K9.32 mi3.11 mi14299+8354513+5014513+50112703(Top 50%)3622(Top 33%)3622(Top 78%)
20K12.43 mi3.11 mi13382+9174004+5094004+50910866(Top 43%)2739(Top 25%)2739(Top 59%)
Half13.11 mi0.68 mi13152+2303882+1223882+12210046(Top 39%)2318(Top 21%)2318(Top 50%)
25K15.53 mi2.42 mi12409+7433485+3973485+3979446(Top 37%)2215(Top 20%)2215(Top 48%)
30K18.64 mi3.11 mi11416+9933054+4313054+4317839(Top 31%)1714(Top 16%)1714(Top 37%)
20M20.00 mi1.36 mi10944+4722852+2022852+2026701(Top 26%)1424(Top 13%)1424(Top 31%)
21M21.00 mi1.00 mi10500+4442684+1682684+1685157(Top 20%)958(Top 9%)958(Top 21%)
35K21.75 mi0.75 mi10246+2542589+952589+955146(Top 20%)956(Top 9%)956(Top 21%)
23M23.00 mi1.25 mi9777+4692424+1652424+1654491(Top 18%)802(Top 7%)802(Top 17%)
24M24.00 mi1.00 mi9479+2982317+1072317+1074740(Top 19%)979(Top 9%)979(Top 21%)
40K24.85 mi0.85 mi9175+3042210+1072210+1073706(Top 15%)681(Top 6%)681(Top 15%)
25.2M25.20 mi0.35 mi9029+1462165+452165+453827(Top 15%)777(Top 7%)777(Top 17%)
Finish26.22 mi1.02 mi8722+3072064+1012064+1013816(Top 15%)737(Top 7%)737(Top 16%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21story building
+97ft-345ft

Overall

12703

Females

3622

F18-39

3622

5K→10K

3.1 - 6.2 mi

Top 57%
×5story building
+79ft-138ft

Overall

14523

Females

4642

F18-39

4642

10K→15K

6.2 - 9.3 mi

Top 50%
×3story building
+67ft-78ft

Overall

12703

Females

3622

F18-39

3622

15K→20K

9.3 - 12.4 mi

Top 43%
×5story building
+106ft-86ft

Overall

10866

Females

2739

F18-39

2739

20K→Half

12.4 - 13.1 mi

Top 39%
×2story building
+19ft-37ft

Overall

10046

Females

2318

F18-39

2318

Half→25K

13.1 - 15.5 mi

Top 37%
×4story building
+66ft-88ft

Overall

9446

Females

2215

F18-39

2215

25K→30K

15.5 - 18.6 mi

Top 31%
×9story building
+181ft-148ft

Overall

7839

Females

1714

F18-39

1714

30K→20M

18.6 - 20.0 mi

Top 26%
×5story building
+64ft-50ft

Overall

6701

Females

1424

F18-39

1424

20M→21M

20.0 - 21.0 mi

Top 20%
×8story building
+106ft-24ft

Overall

5157

Females

958

F18-39

958

21M→35K

21.0 - 21.8 mi

Top 20%
×7story building
+17ft-86ft

Overall

5146

Females

956

F18-39

956

35K→23M

21.8 - 23.0 mi

Top 18%
×5story building
+23ft-63ft

Overall

4491

Females

802

F18-39

802

23M→24M

23.0 - 24.0 mi

Top 19%
×6story building
+12ft-82ft

Overall

4740

Females

979

F18-39

979

24M→40K

24.0 - 24.9 mi

Top 15%
×1story
+6ft-20ft

Overall

3706

Females

681

F18-39

681

40K→25.2M

24.9 - 25.2 mi

Top 15%
×1story
+13ft-16ft

Overall

3827

Females

777

F18-39

777

25.2M→Finish

25.2 - 26.2 mi

Top 15%
×2story building
+22ft-21ft

Overall

3816

Females

737

F18-39

737

Passing Analysis

Category:
Athletes Passed
7149*
Passed By
96
Net Change
+7053
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15775
5K → 10K71473+641#15775#15134
10K → 15K84611+835#15134#14299
15K → 20K9214+917#14299#13382
20K → Half2300+230#13382#13152
Half → 25K7452+743#13152#12409
25K → 30K9941+993#12409#11416
30K → 20M4742+472#11416#10944
20M → 21M4440+444#10944#10500
21M → 35K2540+254#10500#10246
35K → 23M469*0+469#10246#9777
23M → 24M300*2+298#9777#9479
24M → 40K3040+304#9479#9175
40K → 25.2M1460+146#9175#9029
25.2M → Finish3081+307#9029#8722
TOTALS7149*96+7053

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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