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BOSTON MARATHON 2023

Karen Brough

Bib: 15094•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F60-64)
#0 / 527
Top 17%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:00
Rank: #11702
Start → 5K
24:00 | 7:43/mi
10K· 6.21 mi
48:36
Rank: #12913 (-1211)
5K → 10K
24:36 | 7:55/mi
15K· 9.32 mi
1:13:31
Rank: #13479 (-566)
10K → 15K
24:55 | 8:01/mi
20K· 12.43 mi
1:39:57
Rank: #14412 (-933)
15K → 20K
26:26 | 8:30/mi
Half· 13.11 mi
1:45:42
Rank: #14612 (-200)
20K → Half
5:45 | 8:26/mi
25K· 15.53 mi
2:07:34
Rank: #15433 (-821)
Half → 25K
21:52 | 9:01/mi
30K· 18.64 mi
2:37:45
Rank: #16545 (-1112)
25K → 30K
30:11 | 9:43/mi
20M
2:50:14
Rank: #16610 (-65)
30K → 20M
12:29 | 9:11/mi
21M
3:01:12
Rank: #16961 (-351)
20M → 21M
10:58 | 10:58/mi
35K· 21.75 mi
3:07:52
Rank: #16984 (-23)
21M → 35K
6:40 | 8:55/mi
23M
3:20:57
Rank: #17392 (-408)
35K → 23M
13:05 | 10:27/mi
24M
3:30:28
Rank: #17523 (-131)
23M → 24M
9:31 | 9:31/mi
40K· 24.85 mi
3:38:47
Rank: #17642 (-119)
24M → 40K
8:19 | 9:44/mi
25.2M
3:42:29
Rank: #17700 (-58)
40K → 25.2M
3:42 | 10:44/mi
Finish· 26.22 mi
3:52:31
Rank: #17890 (-190)
25.2M → Finish
10:02 | 9:51/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:42
Pace8:04 /mi
2nd Half
Distance13.11 mi
Time2:06:49
Pace9:40 /mi
📊Positive Split: 20.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:2524:007:4324:00
7:43
-
10K
6.21 mi11:19:0148:367:4924:36
7:55
+0:12
15K
9.32 mi11:43:561:13:317:5324:55
8:01
+0:06
20K
12.43 mi12:10:221:39:578:0326:26
8:30
+0:29
Half
13.11 mi12:16:071:45:428:045:45
8:26
-0:04
25K
15.53 mi12:37:592:07:348:1321:52
9:01
+0:35
30K
18.64 mi13:08:102:37:458:2830:11
9:43
+0:42
20M
20.00 mi13:20:392:50:148:3112:29
9:11
-0:32
21M
21.00 mi13:31:373:01:128:3810:58
10:58
+1:47
35K
21.75 mi13:38:173:07:528:386:40
8:55
-2:03
23M
23.00 mi13:51:223:20:578:4413:05
10:27
+1:32
24M
24.00 mi14:00:533:30:288:469:31
9:31
-0:56
40K
24.85 mi14:09:123:38:478:488:19
9:44
+0:13
25.2M
25.20 mi14:12:543:42:298:503:42
10:44
+1:00
Finish
26.22 mi14:22:563:52:318:5210:02
9:51
-0:53

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

7:43 /mi

Average Pace

8:52 /mi

Slowest Pace

10:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:45:42

45% of race

Time at Steady Pace

50:32

22% of race

Time at Slower Pace

1:16:17

33% of race

Average Pace: 8:52 /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 mi10:54:2524:007:4324:00
7:43
#11702
10K
6.21 mi11:19:0148:367:4924:36
7:55
#12913
15K
9.32 mi11:43:561:13:317:5324:55
8:01
#13479
20K
12.43 mi12:10:221:39:578:0326:26
8:30
#14412
Half
13.11 mi12:16:071:45:428:045:45
8:26
#14612
25K
15.53 mi12:37:592:07:348:1321:52
9:01
#15433
30K
18.64 mi13:08:102:37:458:2830:11
9:43
#16545
20M
20.00 mi13:20:392:50:148:3112:29
9:11
#16610
21M
21.00 mi13:31:373:01:128:3810:58
10:58
#16961
35K
21.75 mi13:38:173:07:528:386:40
8:55
#16984
23M
23.00 mi13:51:223:20:578:4413:05
10:27
#17392
24M
24.00 mi14:00:533:30:288:469:31
9:31
#17523
40K
24.85 mi14:09:123:38:478:488:19
9:44
#17642
25.2M
25.20 mi14:12:543:42:298:503:42
10:44
#17700
Finish
26.22 mi14:22:563:52:318:5210:02
9:51
#17890
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi117022700270014564(Top 55%)4428(Top 39%)4428(Top 840%)
10K6.21 mi3.10 mi12913-12113394-6943394-69414158(Top 53%)4154(Top 36%)4154(Top 788%)
15K9.32 mi3.11 mi13479-5663739-3453739-34514564(Top 55%)4428(Top 39%)4428(Top 840%)
20K12.43 mi3.11 mi14412-9334320-5814320-58116921(Top 64%)5890(Top 52%)5890(Top 1118%)
Half13.11 mi0.68 mi14612-2004438-1184438-11817375(Top 65%)6121(Top 54%)6121(Top 1161%)
25K15.53 mi2.42 mi15433-8214985-5474985-54719056(Top 72%)7160(Top 63%)7160(Top 1359%)
30K18.64 mi3.11 mi16545-11125708-7235708-72320189(Top 76%)7879(Top 69%)7879(Top 1495%)
20M20.00 mi1.36 mi16610-655764-565764-5617497(Top 66%)6450(Top 56%)6450(Top 1224%)
21M21.00 mi1.00 mi16961-3515966-2025966-20220759(Top 78%)8328(Top 73%)8328(Top 1580%)
35K21.75 mi0.75 mi16984-235983-175983-1717530(Top 66%)6572(Top 58%)6572(Top 1247%)
23M23.00 mi1.25 mi17392-4086255-2726255-27221194(Top 80%)8621(Top 75%)8621(Top 1636%)
24M24.00 mi1.00 mi17523-1316344-896344-8919279(Top 72%)7604(Top 67%)7604(Top 1443%)
40K24.85 mi0.85 mi17642-1196428-846428-8419120(Top 72%)7547(Top 66%)7547(Top 1432%)
25.2M25.20 mi0.35 mi17700-586463-356463-3519802(Top 74%)7943(Top 70%)7943(Top 1507%)
Finish26.22 mi1.02 mi17890-1906584-1216584-12121308(Top 80%)8719(Top 76%)8719(Top 1654%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21stories
+97ft-345ft

Overall

14564

Females

4428

F60-64

4428

5K→10K

3.1 - 6.2 mi

Top 53%
×5stories
+79ft-138ft

Overall

14158

Females

4154

F60-64

4154

10K→15K

6.2 - 9.3 mi

Top 55%
×3stories
+67ft-78ft

Overall

14564

Females

4428

F60-64

4428

15K→20K

9.3 - 12.4 mi

Top 64%
×5stories
+106ft-86ft

Overall

16921

Females

5890

F60-64

5890

20K→Half

12.4 - 13.1 mi

Top 65%
×2stories
+19ft-37ft

Overall

17375

Females

6121

F60-64

6121

Half→25K

13.1 - 15.5 mi

Top 72%
×4stories
+66ft-88ft

Overall

19056

Females

7160

F60-64

7160

25K→30K

15.5 - 18.6 mi

Top 76%
×9stories
+181ft-148ft

Overall

20189

Females

7879

F60-64

7879

30K→20M

18.6 - 20.0 mi

Top 66%
×5stories
+64ft-50ft

Overall

17497

Females

6450

F60-64

6450

20M→21M

20.0 - 21.0 mi

Top 78%
×8stories
+106ft-24ft

Overall

20759

Females

8328

F60-64

8328

21M→35K

21.0 - 21.8 mi

Top 66%
×7stories
+17ft-86ft

Overall

17530

Females

6572

F60-64

6572

35K→23M

21.8 - 23.0 mi

Top 80%
×5stories
+23ft-63ft

Overall

21194

Females

8621

F60-64

8621

23M→24M

23.0 - 24.0 mi

Top 72%
×6stories
+12ft-82ft

Overall

19279

Females

7604

F60-64

7604

24M→40K

24.0 - 24.9 mi

Top 72%
×1story
+6ft-20ft

Overall

19120

Females

7547

F60-64

7547

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1story
+13ft-16ft

Overall

19802

Females

7943

F60-64

7943

25.2M→Finish

25.2 - 26.2 mi

Top 80%
×2stories
+22ft-21ft

Overall

21308

Females

8719

F60-64

8719

Passing Analysis

Category:
Athletes Passed
403
Passed By
6591
Net Change
-6188
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11702
5K → 10K481259-1211#11702#12913
10K → 15K68634-566#12913#13479
15K → 20K38971-933#13479#14412
20K → Half1201-200#14412#14612
Half → 25K19840-821#14612#15433
25K → 30K261138-1112#15433#16545
30K → 20M63128-65#16545#16610
20M → 21M13364-351#16610#16961
21M → 35K3659-23#16961#16984
35K → 23M12420-408#16984#17392
23M → 24M30161-131#17392#17523
24M → 40K26145-119#17523#17642
40K → 25.2M1169-58#17642#17700
25.2M → Finish12202-190#17700#17890
TOTALS4036591-6188
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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