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BOSTON MARATHON 2025

Karen Brady

Bib: 19881•F

IN

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 50%
Masters (Masters Women)
#0 / 6759
Top 39%
Division (F40-44)
#0 / 1718
Race Day Weather
50°/40°F
broken 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
7:48/mi
24:14
↑ 97↓ 3451.5%
10K· 6.21 mi
7:47/mi
48:26
↑ 79↓ 1380.4%
15K· 9.32 mi
7:53/mi
1:12:57
↑ 67↓ 78
20K· 12.43 mi
8:13/mi
1:38:28
↑ 106↓ 860.1%
Half· 13.11 mi
8:01/mi
1:43:56
↑ 19↓ 370.5%
25K· 15.53 mi
8:30/mi
2:04:32
↑ 66↓ 880.2%
30K· 18.64 mi
9:14/mi
2:33:14
↑ 181↓ 1480.2%
20M
9:20/mi
2:45:55
↑ 64↓ 500.2%
21M
10:27/mi
2:56:22
↑ 106↓ 241.6%
35K· 21.75 mi
9:08/mi
3:03:12
↑ 17↓ 861.7%
23M
9:19/mi
3:14:52
↑ 23↓ 630.6%
24M
9:11/mi
3:24:03
↓ 821.3%
40K· 24.85 mi
9:49/mi
3:32:27
↓ 200.3%
25.2M
10:47/mi
3:36:10
↑ 13↓ 160.2%
Finish· 26.22 mi
8:44/mi
3:45:04
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:56
Pace7:56 /mi
2nd Half
Distance13.11 mi
Time2:01:08
Pace9:14 /mi
📊Positive Split: 16.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:0024:147:4824:14
7:48
-
10K
6.21 mi11:40:1248:267:4824:12
7:47
-0:01
15K
9.32 mi12:04:431:12:577:5024:31
7:53
+0:06
20K
12.43 mi12:30:141:38:287:5525:31
8:13
+0:20
Half
13.11 mi12:35:421:43:567:565:28
8:01
-0:12
25K
15.53 mi12:56:182:04:328:0120:36
8:30
+0:29
30K
18.64 mi13:25:002:33:148:1328:42
9:14
+0:44
20M
20.00 mi13:37:412:45:558:1812:41
9:20
+0:06
21M
21.00 mi13:48:082:56:228:2410:27
10:27
+1:07
35K
21.75 mi13:54:583:03:128:256:50
9:08
-1:19
23M
23.00 mi14:06:383:14:528:2811:40
9:19
+0:11
24M
24.00 mi14:15:493:24:038:309:11
9:11
-0:08
40K
24.85 mi14:24:133:32:278:338:24
9:49
+0:38
25.2M
25.20 mi14:27:563:36:108:353:43
10:47
+0:58
Finish
26.22 mi14:36:503:45:048:358:54
8:44
-2:03

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

7:47 /mi

Average Pace

8:35 /mi

Slowest Pace

10:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:04:32

55% of race

Time at Steady Pace

1:17:58

35% of race

Time at Slower Pace

22:34

10% of race

Average Pace: 8:35 /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 mi11:16:0024:147:4824:14
7:48
#14831
10K
6.21 mi11:40:1248:267:4824:12
7:47
#14755
15K
9.32 mi12:04:431:12:577:5024:31
7:53
#14874
20K
12.43 mi12:30:141:38:287:5525:31
8:13
#15311
Half
13.11 mi12:35:421:43:567:565:28
8:01
#15348
25K
15.53 mi12:56:182:04:328:0120:36
8:30
#15691
30K
18.64 mi13:25:002:33:148:1328:42
9:14
#16348
20M
20.00 mi13:37:412:45:558:1812:41
9:20
#16490
21M
21.00 mi13:48:082:56:228:2410:27
10:27
#16704
35K
21.75 mi13:54:583:03:128:256:50
9:08
#16775
23M
23.00 mi14:06:383:14:528:2811:40
9:19
#16832
24M
24.00 mi14:15:493:24:038:309:11
9:11
#16901
40K
24.85 mi14:24:133:32:278:338:24
9:49
#17077
25.2M
25.20 mi14:27:563:36:108:353:43
10:47
#17129
Finish
26.22 mi14:36:503:45:048:358:54
8:44
#17152
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi148314428442815190(Top 53%)4686(Top 38%)4686(Top 273%)
10K6.21 mi3.10 mi14755+764406+224406+2214726(Top 52%)4383(Top 36%)4383(Top 255%)
15K9.32 mi3.11 mi14874-1194487-814487-8115190(Top 53%)4686(Top 38%)4686(Top 273%)
20K12.43 mi3.11 mi15311-4374758-2714758-27116399(Top 58%)5441(Top 44%)5441(Top 317%)
Half13.11 mi0.68 mi15348-374779-214779-2116099(Top 57%)5260(Top 43%)5260(Top 306%)
25K15.53 mi2.42 mi15691-3434989-2104989-21017192(Top 61%)5969(Top 49%)5969(Top 347%)
30K18.64 mi3.11 mi16348-6575441-4525441-45218828(Top 66%)7023(Top 57%)7023(Top 409%)
20M20.00 mi1.36 mi16490-1425550-1095550-10918453(Top 65%)6975(Top 57%)6975(Top 406%)
21M21.00 mi1.00 mi16704-2145705-1555705-15519851(Top 70%)7822(Top 64%)7822(Top 455%)
35K21.75 mi0.75 mi16775-715757-525757-5218896(Top 67%)7393(Top 60%)7393(Top 430%)
23M23.00 mi1.25 mi16832-575832-755832-7517862(Top 63%)6919(Top 57%)6919(Top 403%)
24M24.00 mi1.00 mi16901-695899-675899-6718284(Top 64%)7186(Top 59%)7186(Top 418%)
40K24.85 mi0.85 mi17077-1766033-1346033-13419895(Top 70%)8091(Top 66%)8091(Top 471%)
25.2M25.20 mi0.35 mi17129-526073-406073-4019972(Top 70%)8133(Top 67%)8133(Top 473%)
Finish26.22 mi1.02 mi17152-236104-316104-3117689(Top 62%)6914(Top 57%)6914(Top 402%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21story building
+97ft-345ft

Overall

15190

Females

4686

F40-44

4686

5K→10K

3.1 - 6.2 mi

Top 52%
×5story building
+79ft-138ft

Overall

14726

Females

4383

F40-44

4383

10K→15K

6.2 - 9.3 mi

Top 53%
×3story building
+67ft-78ft

Overall

15190

Females

4686

F40-44

4686

15K→20K

9.3 - 12.4 mi

Top 58%
×5story building
+106ft-86ft

Overall

16399

Females

5441

F40-44

5441

20K→Half

12.4 - 13.1 mi

Top 57%
×2story building
+19ft-37ft

Overall

16099

Females

5260

F40-44

5260

Half→25K

13.1 - 15.5 mi

Top 61%
×4story building
+66ft-88ft

Overall

17192

Females

5969

F40-44

5969

25K→30K

15.5 - 18.6 mi

Top 66%
×9story building
+181ft-148ft

Overall

18828

Females

7023

F40-44

7023

30K→20M

18.6 - 20.0 mi

Top 65%
×5story building
+64ft-50ft

Overall

18453

Females

6975

F40-44

6975

20M→21M

20.0 - 21.0 mi

Top 70%
×8story building
+106ft-24ft

Overall

19851

Females

7822

F40-44

7822

21M→35K

21.0 - 21.8 mi

Top 67%
×7story building
+17ft-86ft

Overall

18896

Females

7393

F40-44

7393

35K→23M

21.8 - 23.0 mi

Top 63%
×5story building
+23ft-63ft

Overall

17862

Females

6919

F40-44

6919

23M→24M

23.0 - 24.0 mi

Top 64%
×6story building
+12ft-82ft

Overall

18284

Females

7186

F40-44

7186

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

19895

Females

8091

F40-44

8091

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

19972

Females

8133

F40-44

8133

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2story building
+22ft-21ft

Overall

17689

Females

6914

F40-44

6914

Passing Analysis

Category:
Athletes Passed
1213
Passed By
3534
Net Change
-2321
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14831
5K → 10K330254+76#14831#14755
10K → 15K147266-119#14755#14874
15K → 20K109546-437#14874#15311
20K → Half2663-37#15311#15348
Half → 25K88431-343#15348#15691
25K → 30K80737-657#15691#16348
30K → 20M68210-142#16348#16490
20M → 21M57271-214#16490#16704
21M → 35K41112-71#16704#16775
35K → 23M97154-57#16775#16832
23M → 24M56125-69#16832#16901
24M → 40K31207-176#16901#17077
40K → 25.2M2274-52#17077#17129
25.2M → Finish6184-23#17129#17152
TOTALS12133534-2321
📊

Passing Visuals

Category:
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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