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BOSTON MARATHON 2025

Maria Castro

Bib: 23947•F

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F50-54)
#0 / 1303
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:09
Rank: #22696
Start → 5K
28:09 | 9:04/mi
10K· 6.21 mi
56:28
Rank: #22765 (-69)
5K → 10K
28:19 | 9:07/mi
15K· 9.32 mi
1:24:40
Rank: #22630 (+135)
10K → 15K
28:12 | 9:05/mi
20K· 12.43 mi
1:56:14
Rank: #23295 (-665)
15K → 20K
31:34 | 10:10/mi
Half· 13.11 mi
2:02:28
Rank: #23260 (+35)
20K → Half
6:14 | 9:08/mi
25K· 15.53 mi
2:27:58
Rank: #23493 (-233)
Half → 25K
25:30 | 10:31/mi
30K· 18.64 mi
3:00:01
Rank: #23266 (+227)
25K → 30K
32:03 | 10:19/mi
20M
3:14:22
Rank: #23204 (+62)
30K → 20M
14:21 | 10:34/mi
21M
3:26:02
Rank: #23175 (+29)
20M → 21M
11:40 | 11:40/mi
35K· 21.75 mi
3:32:59
Rank: #23060 (+115)
21M → 35K
6:57 | 9:17/mi
23M
3:45:28
Rank: #22892 (+168)
35K → 23M
12:29 | 9:58/mi
24M
3:56:23
Rank: #22941 (-49)
23M → 24M
10:55 | 10:55/mi
40K· 24.85 mi
4:04:53
Rank: #22833 (+108)
24M → 40K
8:30 | 9:56/mi
25.2M
4:08:29
Rank: #22775 (+58)
40K → 25.2M
3:36 | 10:26/mi
Finish· 26.22 mi
4:17:55
Rank: #22701 (+74)
25.2M → Finish
9:26 | 9:15/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:02:28
Pace9:21 /mi
2nd Half
Distance13.11 mi
Time2:15:27
Pace10:20 /mi
📊Positive Split: 10.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:30:3028:099:0428:09
9:04
-
10K
6.21 mi11:58:4956:289:0528:19
9:07
+0:03
15K
9.32 mi12:27:011:24:409:0528:12
9:05
-0:02
20K
12.43 mi12:58:351:56:149:2131:34
10:10
+1:05
Half
13.11 mi13:04:492:02:289:216:14
9:08
-1:02
25K
15.53 mi13:30:192:27:589:3225:30
10:31
+1:23
30K
18.64 mi14:02:223:00:019:3932:03
10:19
-0:12
20M
20.00 mi14:16:433:14:229:4314:21
10:34
+0:15
21M
21.00 mi14:28:233:26:029:4911:40
11:40
+1:06
35K
21.75 mi14:35:203:32:599:486:57
9:17
-2:23
23M
23.00 mi14:47:493:45:289:4812:29
9:58
+0:41
24M
24.00 mi14:58:443:56:239:5110:55
10:55
+0:57
40K
24.85 mi15:07:144:04:539:518:30
9:56
-0:59
25.2M
25.20 mi15:10:504:08:299:523:36
10:26
+0:30
Finish
26.22 mi15:20:164:17:559:519:26
9:15
-1:11

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

9:04 /mi

Average Pace

9:51 /mi

Slowest Pace

11:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:47:17

42% of race

Time at Steady Pace

1:24:36

33% of race

Time at Slower Pace

1:06:02

26% of race

Average Pace: 9:50 /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 mi11:30:3028:099:0428:09
9:04
#22696
10K
6.21 mi11:58:4956:289:0528:19
9:07
#22765
15K
9.32 mi12:27:011:24:409:0528:12
9:05
#22630
20K
12.43 mi12:58:351:56:149:2131:34
10:10
#23295
Half
13.11 mi13:04:492:02:289:216:14
9:08
#23260
25K
15.53 mi13:30:192:27:589:3225:30
10:31
#23493
30K
18.64 mi14:02:223:00:019:3932:03
10:19
#23266
20M
20.00 mi14:16:433:14:229:4314:21
10:34
#23204
21M
21.00 mi14:28:233:26:029:4911:40
11:40
#23175
35K
21.75 mi14:35:203:32:599:486:57
9:17
#23060
23M
23.00 mi14:47:493:45:289:4812:29
9:58
#22892
24M
24.00 mi14:58:443:56:239:5110:55
10:55
#22941
40K
24.85 mi15:07:144:04:539:518:30
9:56
#22833
25.2M
25.20 mi15:10:504:08:299:523:36
10:26
#22775
Finish
26.22 mi15:20:164:17:559:519:26
9:15
#22701
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi226969007900722368(Top 79%)8763(Top 72%)8763(Top 673%)
10K6.21 mi3.10 mi22765-699026-199026-1922882(Top 81%)9062(Top 74%)9062(Top 695%)
15K9.32 mi3.11 mi22630+1358928+988928+9822368(Top 79%)8763(Top 72%)8763(Top 673%)
20K12.43 mi3.11 mi23295-6659284-3569284-35624557(Top 86%)10020(Top 82%)10020(Top 769%)
Half13.11 mi0.68 mi23260+359267+179267+1722410(Top 79%)8840(Top 72%)8840(Top 678%)
25K15.53 mi2.42 mi23493-2339412-1459412-14524410(Top 86%)9968(Top 82%)9968(Top 765%)
30K18.64 mi3.11 mi23266+2279331+819331+8122503(Top 79%)9047(Top 74%)9047(Top 694%)
20M20.00 mi1.36 mi23204+629315+169315+1622601(Top 80%)9205(Top 75%)9205(Top 706%)
21M21.00 mi1.00 mi23175+299318-39318-322961(Top 81%)9477(Top 78%)9477(Top 727%)
35K21.75 mi0.75 mi23060+1159271+479271+4719574(Top 69%)7766(Top 64%)7766(Top 596%)
23M23.00 mi1.25 mi22892+1689204+679204+6720404(Top 72%)8250(Top 67%)8250(Top 633%)
24M24.00 mi1.00 mi22941-499254-509254-5023822(Top 84%)10031(Top 82%)10031(Top 770%)
40K24.85 mi0.85 mi22833+1089212+429212+4220297(Top 71%)8317(Top 68%)8317(Top 638%)
25.2M25.20 mi0.35 mi22775+589190+229190+2218872(Top 66%)7583(Top 62%)7583(Top 582%)
Finish26.22 mi1.02 mi22701+749165+259165+2520236(Top 71%)8270(Top 68%)8270(Top 635%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21stories
+97ft-345ft

Overall

22368

Females

8763

F50-54

8763

5K→10K

3.1 - 6.2 mi

Top 81%
×5stories
+79ft-138ft

Overall

22882

Females

9062

F50-54

9062

10K→15K

6.2 - 9.3 mi

Top 79%
×3stories
+67ft-78ft

Overall

22368

Females

8763

F50-54

8763

15K→20K

9.3 - 12.4 mi

Top 86%
×5stories
+106ft-86ft

Overall

24557

Females

10020

F50-54

10020

20K→Half

12.4 - 13.1 mi

Top 79%
×2stories
+19ft-37ft

Overall

22410

Females

8840

F50-54

8840

Half→25K

13.1 - 15.5 mi

Top 86%
×4stories
+66ft-88ft

Overall

24410

Females

9968

F50-54

9968

25K→30K

15.5 - 18.6 mi

Top 79%
×9stories
+181ft-148ft

Overall

22503

Females

9047

F50-54

9047

30K→20M

18.6 - 20.0 mi

Top 80%
×5stories
+64ft-50ft

Overall

22601

Females

9205

F50-54

9205

20M→21M

20.0 - 21.0 mi

Top 81%
×8stories
+106ft-24ft

Overall

22961

Females

9477

F50-54

9477

21M→35K

21.0 - 21.8 mi

Top 69%
×7stories
+17ft-86ft

Overall

19574

Females

7766

F50-54

7766

35K→23M

21.8 - 23.0 mi

Top 72%
×5stories
+23ft-63ft

Overall

20404

Females

8250

F50-54

8250

23M→24M

23.0 - 24.0 mi

Top 84%
×6stories
+12ft-82ft

Overall

23822

Females

10031

F50-54

10031

24M→40K

24.0 - 24.9 mi

Top 71%
×1story
+6ft-20ft

Overall

20297

Females

8317

F50-54

8317

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

18872

Females

7583

F50-54

7583

25.2M→Finish

25.2 - 26.2 mi

Top 71%
×2stories
+22ft-21ft

Overall

20236

Females

8270

F50-54

8270

Passing Analysis

Category:
Athletes Passed
1687
Passed By
1692
Net Change
-5
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22696
5K → 10K215284-69#22696#22765
10K → 15K246111+135#22765#22630
15K → 20K44709-665#22630#23295
20K → Half5116+35#23295#23260
Half → 25K62295-233#23260#23493
25K → 30K28558+227#23493#23266
30K → 20M10543+62#23266#23204
20M → 21M7647+29#23204#23175
21M → 35K1183+115#23175#23060
35K → 23M1779+168#23060#22892
23M → 24M4291-49#22892#22941
24M → 40K12012+108#22941#22833
40K → 25.2M602+58#22833#22775
25.2M → Finish8612+74#22775#22701
TOTALS16871692-5
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing