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BOSTON MARATHON 2023

Karen Perry

Bib: 20575•F

MI

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 44%
Masters (Masters Women)
#0 / 6539
Top 32%
Division (F40-44)
#0 / 1878
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:09
Rank: #14693
Start → 5K
25:09 | 8:06/mi
10K· 6.21 mi
49:31
Rank: #14163 (+530)
5K → 10K
24:22 | 7:51/mi
15K· 9.32 mi
1:14:22
Rank: #14211 (-48)
10K → 15K
24:51 | 8:00/mi
20K· 12.43 mi
1:39:33
Rank: #14183 (+28)
15K → 20K
25:11 | 8:06/mi
Half· 13.11 mi
1:45:04
Rank: #14227 (-44)
20K → Half
5:31 | 8:05/mi
25K· 15.53 mi
2:05:38
Rank: #14566 (-339)
Half → 25K
20:34 | 8:29/mi
30K· 18.64 mi
2:33:23
Rank: #14986 (-420)
25K → 30K
27:45 | 8:56/mi
20M
2:46:01
Rank: #15236 (-250)
30K → 20M
12:38 | 9:18/mi
21M
2:55:51
Rank: #15346 (-110)
20M → 21M
9:50 | 9:50/mi
35K· 21.75 mi
3:02:25
Rank: #15408 (-62)
21M → 35K
6:34 | 8:47/mi
23M
3:13:32
Rank: #15396 (+12)
35K → 23M
11:07 | 8:53/mi
24M
3:22:21
Rank: #15434 (-38)
23M → 24M
8:49 | 8:49/mi
40K· 24.85 mi
3:29:25
Rank: #15299 (+135)
24M → 40K
7:04 | 8:16/mi
25.2M
3:32:33
Rank: #15249 (+50)
40K → 25.2M
3:08 | 9:05/mi
Finish· 26.22 mi
3:40:52
Rank: #15155 (+94)
25.2M → Finish
8:19 | 8:10/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:04
Pace8:01 /mi
2nd Half
Distance13.11 mi
Time1:55:48
Pace8:50 /mi
📊Positive Split: 10.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:5625:098:0625:09
8:06
-
10K
6.21 mi11:42:1849:317:5824:22
7:51
-0:15
15K
9.32 mi12:07:091:14:227:5924:51
8:00
+0:09
20K
12.43 mi12:32:201:39:338:0125:11
8:06
+0:06
Half
13.11 mi12:37:511:45:048:015:31
8:05
-0:01
25K
15.53 mi12:58:252:05:388:0520:34
8:29
+0:24
30K
18.64 mi13:26:102:33:238:1427:45
8:56
+0:27
20M
20.00 mi13:38:482:46:018:1812:38
9:18
+0:22
21M
21.00 mi13:48:382:55:518:229:50
9:50
+0:32
35K
21.75 mi13:55:123:02:258:236:34
8:47
-1:03
23M
23.00 mi14:06:193:13:328:2511:07
8:53
+0:06
24M
24.00 mi14:15:083:22:218:268:49
8:49
-0:04
40K
24.85 mi14:22:123:29:258:267:04
8:16
-0:33
25.2M
25.20 mi14:25:203:32:338:263:08
9:05
+0:49
Finish
26.22 mi14:33:393:40:528:268:19
8:10
-0:55

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

7:51 /mi

Average Pace

8:26 /mi

Slowest Pace

9:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:53:23

51% of race

Time at Steady Pace

27:38

13% of race

Time at Slower Pace

1:19:51

36% of race

Average Pace: 8:25 /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 mi11:17:5625:098:0625:09
8:06
#14693
10K
6.21 mi11:42:1849:317:5824:22
7:51
#14163
15K
9.32 mi12:07:091:14:227:5924:51
8:00
#14211
20K
12.43 mi12:32:201:39:338:0125:11
8:06
#14183
Half
13.11 mi12:37:511:45:048:015:31
8:05
#14227
25K
15.53 mi12:58:252:05:388:0520:34
8:29
#14566
30K
18.64 mi13:26:102:33:238:1427:45
8:56
#14986
20M
20.00 mi13:38:482:46:018:1812:38
9:18
#15236
21M
21.00 mi13:48:382:55:518:229:50
9:50
#15346
35K
21.75 mi13:55:123:02:258:236:34
8:47
#15408
23M
23.00 mi14:06:193:13:328:2511:07
8:53
#15396
24M
24.00 mi14:15:083:22:218:268:49
8:49
#15434
40K
24.85 mi14:22:123:29:258:267:04
8:16
#15299
25.2M
25.20 mi14:25:203:32:338:263:08
9:05
#15249
Finish
26.22 mi14:33:393:40:528:268:19
8:10
#15155
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi146934449444914391(Top 54%)4322(Top 38%)4322(Top 230%)
10K6.21 mi3.10 mi14163+5304144+3054144+30513516(Top 51%)3740(Top 33%)3740(Top 199%)
15K9.32 mi3.11 mi14211-484183-394183-3914391(Top 54%)4322(Top 38%)4322(Top 230%)
20K12.43 mi3.11 mi14183+284194-114194-1114275(Top 54%)4276(Top 37%)4276(Top 228%)
Half13.11 mi0.68 mi14227-444217-234217-2315110(Top 57%)4755(Top 42%)4755(Top 253%)
25K15.53 mi2.42 mi14566-3394447-2304447-23016086(Top 60%)5493(Top 48%)5493(Top 292%)
30K18.64 mi3.11 mi14986-4204739-2924739-29216828(Top 63%)5963(Top 52%)5963(Top 318%)
20M20.00 mi1.36 mi15236-2504933-1944933-19418012(Top 68%)6745(Top 59%)6745(Top 359%)
21M21.00 mi1.00 mi15346-1105023-905023-9017381(Top 65%)6414(Top 56%)6414(Top 342%)
35K21.75 mi0.75 mi15408-625076-535076-5316838(Top 63%)6182(Top 54%)6182(Top 329%)
23M23.00 mi1.25 mi15396+125095-195095-1915436(Top 58%)5412(Top 47%)5412(Top 288%)
24M24.00 mi1.00 mi15434-385130-355130-3516301(Top 61%)5964(Top 52%)5964(Top 318%)
40K24.85 mi0.85 mi15299+1355060+705060+7011847(Top 45%)3594(Top 31%)3594(Top 191%)
25.2M25.20 mi0.35 mi15249+505034+265034+2613092(Top 49%)4290(Top 38%)4290(Top 228%)
Finish26.22 mi1.02 mi15155+945002+325002+3213207(Top 50%)4316(Top 38%)4316(Top 230%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21stories
+97ft-345ft

Overall

14391

Females

4322

F40-44

4322

5K→10K

3.1 - 6.2 mi

Top 51%
×5stories
+79ft-138ft

Overall

13516

Females

3740

F40-44

3740

10K→15K

6.2 - 9.3 mi

Top 54%
×3stories
+67ft-78ft

Overall

14391

Females

4322

F40-44

4322

15K→20K

9.3 - 12.4 mi

Top 54%
×5stories
+106ft-86ft

Overall

14275

Females

4276

F40-44

4276

20K→Half

12.4 - 13.1 mi

Top 57%
×2stories
+19ft-37ft

Overall

15110

Females

4755

F40-44

4755

Half→25K

13.1 - 15.5 mi

Top 60%
×4stories
+66ft-88ft

Overall

16086

Females

5493

F40-44

5493

25K→30K

15.5 - 18.6 mi

Top 63%
×9stories
+181ft-148ft

Overall

16828

Females

5963

F40-44

5963

30K→20M

18.6 - 20.0 mi

Top 68%
×5stories
+64ft-50ft

Overall

18012

Females

6745

F40-44

6745

20M→21M

20.0 - 21.0 mi

Top 65%
×8stories
+106ft-24ft

Overall

17381

Females

6414

F40-44

6414

21M→35K

21.0 - 21.8 mi

Top 63%
×7stories
+17ft-86ft

Overall

16838

Females

6182

F40-44

6182

35K→23M

21.8 - 23.0 mi

Top 58%
×5stories
+23ft-63ft

Overall

15436

Females

5412

F40-44

5412

23M→24M

23.0 - 24.0 mi

Top 61%
×6stories
+12ft-82ft

Overall

16301

Females

5964

F40-44

5964

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

11847

Females

3594

F40-44

3594

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

13092

Females

4290

F40-44

4290

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2stories
+22ft-21ft

Overall

13207

Females

4316

F40-44

4316

Passing Analysis

Category:
Athletes Passed
1731
Passed By
2193
Net Change
-462
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14693
5K → 10K649119+530#14693#14163
10K → 15K162210-48#14163#14211
15K → 20K184156+28#14211#14183
20K → Half1256-44#14183#14227
Half → 25K68407-339#14227#14566
25K → 30K65485-420#14566#14986
30K → 20M30280-250#14986#15236
20M → 21M56166-110#15236#15346
21M → 35K3294-62#15346#15408
35K → 23M9684+12#15408#15396
23M → 24M5290-38#15396#15434
24M → 40K14510+135#15434#15299
40K → 25.2M6010+50#15299#15249
25.2M → Finish12026+94#15249#15155
TOTALS17312193-462
📊

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