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BOSTON MARATHON 2023

Karen Holland

Bib: 25121•F

RI

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F50-54)
#0 / 1207
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
31:28
Rank: #23762
Start → 5K
31:28 | 10:08/mi
10K· 6.21 mi
1:01:45
Rank: #23489 (+273)
5K → 10K
30:17 | 9:45/mi
15K· 9.32 mi
1:32:05
Rank: #23313 (+176)
10K → 15K
30:20 | 9:46/mi
20K· 12.43 mi
2:02:59
Rank: #23180 (+133)
15K → 20K
30:54 | 9:57/mi
Half· 13.11 mi
2:09:43
Rank: #23170 (+10)
20K → Half
6:44 | 9:52/mi
25K· 15.53 mi
2:34:06
Rank: #22998 (+172)
Half → 25K
24:23 | 10:03/mi
30K· 18.64 mi
3:06:17
Rank: #22788 (+210)
25K → 30K
32:11 | 10:22/mi
20M
3:20:29
Rank: #22693 (+95)
30K → 20M
14:12 | 10:27/mi
21M
3:31:30
Rank: #22593 (+100)
20M → 21M
11:01 | 11:01/mi
35K· 21.75 mi
3:39:12
Rank: #22556 (+37)
21M → 35K
7:42 | 10:18/mi
23M
3:52:26
Rank: #22497 (+59)
35K → 23M
13:14 | 10:34/mi
24M
4:02:49
Rank: #22463 (+34)
23M → 24M
10:23 | 10:23/mi
40K· 24.85 mi
4:11:55
Rank: #22438 (+25)
24M → 40K
9:06 | 10:39/mi
25.2M
4:15:49
Rank: #22401 (+37)
40K → 25.2M
3:54 | 11:19/mi
Finish· 26.22 mi
4:26:20
Rank: #22413 (-12)
25.2M → Finish
10:31 | 10:19/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:09:43
Pace9:54 /mi
2nd Half
Distance13.11 mi
Time2:16:37
Pace10:25 /mi
📊Positive Split: 5.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:4131:2810:0831:28
10:08
-
10K
6.21 mi12:18:581:01:459:5630:17
9:45
-0:23
15K
9.32 mi12:49:181:32:059:5330:20
9:46
+0:01
20K
12.43 mi13:20:122:02:599:5430:54
9:57
+0:11
Half
13.11 mi13:26:562:09:439:546:44
9:52
-0:05
25K
15.53 mi13:51:192:34:069:5524:23
10:03
+0:11
30K
18.64 mi14:23:303:06:1710:0032:11
10:22
+0:19
20M
20.00 mi14:37:423:20:2910:0114:12
10:27
+0:05
21M
21.00 mi14:48:433:31:3010:0411:01
11:01
+0:34
35K
21.75 mi14:56:253:39:1210:057:42
10:18
-0:43
23M
23.00 mi15:09:393:52:2610:0613:14
10:34
+0:16
24M
24.00 mi15:20:024:02:4910:0710:23
10:23
-0:11
40K
24.85 mi15:29:084:11:5510:089:06
10:39
+0:16
25.2M
25.20 mi15:33:024:15:4910:093:54
11:19
+0:40
Finish
26.22 mi15:43:334:26:2010:1010:31
10:19
-1:00

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

9:45 /mi

Average Pace

10:10 /mi

Slowest Pace

11:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

4:11:25

94% of race

Time at Steady Pace

14:55

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:09 /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 mi11:48:4131:2810:0831:28
10:08
#23762
10K
6.21 mi12:18:581:01:459:5630:17
9:45
#23489
15K
9.32 mi12:49:181:32:059:5330:20
9:46
#23313
20K
12.43 mi13:20:122:02:599:5430:54
9:57
#23180
Half
13.11 mi13:26:562:09:439:546:44
9:52
#23170
25K
15.53 mi13:51:192:34:069:5524:23
10:03
#22998
30K
18.64 mi14:23:303:06:1710:0032:11
10:22
#22788
20M
20.00 mi14:37:423:20:2910:0114:12
10:27
#22693
21M
21.00 mi14:48:433:31:3010:0411:01
11:01
#22593
35K
21.75 mi14:56:253:39:1210:057:42
10:18
#22556
23M
23.00 mi15:09:393:52:2610:0613:14
10:34
#22497
24M
24.00 mi15:20:024:02:4910:0710:23
10:23
#22463
40K
24.85 mi15:29:084:11:5510:089:06
10:39
#22438
25.2M
25.20 mi15:33:024:15:4910:093:54
11:19
#22401
Finish
26.22 mi15:43:334:26:2010:1010:31
10:19
#22413
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi237629775977522956(Top 86%)9321(Top 82%)9321(Top 772%)
10K6.21 mi3.10 mi23489+2739617+1589617+15823154(Top 87%)9415(Top 82%)9415(Top 780%)
15K9.32 mi3.11 mi23313+1769512+1059512+10522956(Top 86%)9321(Top 82%)9321(Top 772%)
20K12.43 mi3.11 mi23180+1339448+649448+6422775(Top 86%)9233(Top 81%)9233(Top 765%)
Half13.11 mi0.68 mi23170+109439+99439+923031(Top 87%)9364(Top 82%)9364(Top 776%)
25K15.53 mi2.42 mi22998+1729359+809359+8022347(Top 84%)9029(Top 79%)9029(Top 748%)
30K18.64 mi3.11 mi22788+2109279+809279+8021911(Top 82%)8857(Top 78%)8857(Top 734%)
20M20.00 mi1.36 mi22693+959241+389241+3821625(Top 81%)8768(Top 77%)8768(Top 726%)
21M21.00 mi1.00 mi22593+1009192+499192+4920881(Top 78%)8398(Top 74%)8398(Top 696%)
35K21.75 mi0.75 mi22556+379173+199173+1921987(Top 83%)9045(Top 79%)9045(Top 749%)
23M23.00 mi1.25 mi22497+599153+209153+2021482(Top 81%)8783(Top 77%)8783(Top 728%)
24M24.00 mi1.00 mi22463+349139+149139+1421768(Top 82%)8989(Top 79%)8989(Top 745%)
40K24.85 mi0.85 mi22438+259137+29137+221582(Top 81%)8933(Top 78%)8933(Top 740%)
25.2M25.20 mi0.35 mi22401+379118+199118+1921172(Top 80%)8694(Top 76%)8694(Top 720%)
Finish26.22 mi1.02 mi22413-129136-189136-1822615(Top 85%)9452(Top 83%)9452(Top 783%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 86%
×21stories
+97ft-345ft

Overall

22956

Females

9321

F50-54

9321

5K→10K

3.1 - 6.2 mi

Top 87%
×5stories
+79ft-138ft

Overall

23154

Females

9415

F50-54

9415

10K→15K

6.2 - 9.3 mi

Top 86%
×3stories
+67ft-78ft

Overall

22956

Females

9321

F50-54

9321

15K→20K

9.3 - 12.4 mi

Top 86%
×5stories
+106ft-86ft

Overall

22775

Females

9233

F50-54

9233

20K→Half

12.4 - 13.1 mi

Top 87%
×2stories
+19ft-37ft

Overall

23031

Females

9364

F50-54

9364

Half→25K

13.1 - 15.5 mi

Top 84%
×4stories
+66ft-88ft

Overall

22347

Females

9029

F50-54

9029

25K→30K

15.5 - 18.6 mi

Top 82%
×9stories
+181ft-148ft

Overall

21911

Females

8857

F50-54

8857

30K→20M

18.6 - 20.0 mi

Top 81%
×5stories
+64ft-50ft

Overall

21625

Females

8768

F50-54

8768

20M→21M

20.0 - 21.0 mi

Top 78%
×8stories
+106ft-24ft

Overall

20881

Females

8398

F50-54

8398

21M→35K

21.0 - 21.8 mi

Top 83%
×7stories
+17ft-86ft

Overall

21987

Females

9045

F50-54

9045

35K→23M

21.8 - 23.0 mi

Top 81%
×5stories
+23ft-63ft

Overall

21482

Females

8783

F50-54

8783

23M→24M

23.0 - 24.0 mi

Top 82%
×6stories
+12ft-82ft

Overall

21768

Females

8989

F50-54

8989

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

21582

Females

8933

F50-54

8933

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

21172

Females

8694

F50-54

8694

25.2M→Finish

25.2 - 26.2 mi

Top 85%
×2stories
+22ft-21ft

Overall

22615

Females

9452

F50-54

9452

Passing Analysis

Category:
Athletes Passed
1777
Passed By
428
Net Change
+1349
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23762
5K → 10K377104+273#23762#23489
10K → 15K22852+176#23489#23313
15K → 20K18249+133#23313#23180
20K → Half3020+10#23180#23170
Half → 25K20028+172#23170#22998
25K → 30K23626+210#22998#22788
30K → 20M11419+95#22788#22693
20M → 21M11313+100#22693#22593
21M → 35K5619+37#22593#22556
35K → 23M8324+59#22556#22497
23M → 24M5016+34#22497#22463
24M → 40K4520+25#22463#22438
40K → 25.2M392+37#22438#22401
25.2M → Finish2436-12#22401#22413
TOTALS1777428+1349
📊

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