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BOSTON MARATHON 2023

Katherine Walters

Bib: 20608•F

GA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 42%
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
26:15
Rank: #17224
Start → 5K
26:15 | 8:27/mi
10K· 6.21 mi
52:18
Rank: #17329 (-105)
5K → 10K
26:03 | 8:23/mi
15K· 9.32 mi
1:18:18
Rank: #17205 (+124)
10K → 15K
26:00 | 8:22/mi
20K· 12.43 mi
1:44:17
Rank: #16875 (+330)
15K → 20K
25:59 | 8:22/mi
Half· 13.11 mi
1:49:58
Rank: #16863 (+12)
20K → Half
5:41 | 8:20/mi
25K· 15.53 mi
2:10:35
Rank: #16781 (+82)
Half → 25K
20:37 | 8:30/mi
30K· 18.64 mi
2:37:41
Rank: #16518 (+263)
25K → 30K
27:06 | 8:43/mi
20M
2:49:47
Rank: #16453 (+65)
30K → 20M
12:06 | 8:54/mi
21M
2:59:31
Rank: #16481 (-28)
20M → 21M
9:44 | 9:44/mi
35K· 21.75 mi
3:06:06
Rank: #16497 (-16)
21M → 35K
6:35 | 8:48/mi
23M
3:18:06
Rank: #16659 (-162)
35K → 23M
12:00 | 9:35/mi
24M
3:26:50
Rank: #16613 (+46)
23M → 24M
8:44 | 8:44/mi
40K· 24.85 mi
3:35:06
Rank: #16737 (-124)
24M → 40K
8:16 | 9:40/mi
25.2M
3:38:35
Rank: #16740 (-3)
40K → 25.2M
3:29 | 10:06/mi
Finish· 26.22 mi
3:47:32
Rank: #16759 (-19)
25.2M → Finish
8:57 | 8:47/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:58
Pace8:23 /mi
2nd Half
Distance13.11 mi
Time1:57:34
Pace8:58 /mi
📊Positive Split: 6.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:4526:158:2726:15
8:27
-
10K
6.21 mi11:48:4852:188:2526:03
8:23
-0:04
15K
9.32 mi12:14:481:18:188:2426:00
8:22
-0:01
20K
12.43 mi12:40:471:44:178:2325:59
8:22
0:00
Half
13.11 mi12:46:281:49:588:235:41
8:20
-0:02
25K
15.53 mi13:07:052:10:358:2420:37
8:30
+0:10
30K
18.64 mi13:34:112:37:418:2827:06
8:43
+0:13
20M
20.00 mi13:46:172:49:478:2912:06
8:54
+0:11
21M
21.00 mi13:56:012:59:318:339:44
9:44
+0:50
35K
21.75 mi14:02:363:06:068:336:35
8:48
-0:56
23M
23.00 mi14:14:363:18:068:3712:00
9:35
+0:47
24M
24.00 mi14:23:203:26:508:378:44
8:44
-0:51
40K
24.85 mi14:31:363:35:068:398:16
9:40
+0:56
25.2M
25.20 mi14:35:053:38:358:403:29
10:06
+0:26
Finish
26.22 mi14:44:023:47:328:418:57
8:47
-1:19

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

8:20 /mi

Average Pace

8:41 /mi

Slowest Pace

10:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:49:58

48% of race

Time at Steady Pace

1:24:05

37% of race

Time at Slower Pace

33:29

15% of race

Average Pace: 8:41 /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 mi11:22:4526:158:2726:15
8:27
#17224
10K
6.21 mi11:48:4852:188:2526:03
8:23
#17329
15K
9.32 mi12:14:481:18:188:2426:00
8:22
#17205
20K
12.43 mi12:40:471:44:178:2325:59
8:22
#16875
Half
13.11 mi12:46:281:49:588:235:41
8:20
#16863
25K
15.53 mi13:07:052:10:358:2420:37
8:30
#16781
30K
18.64 mi13:34:112:37:418:2827:06
8:43
#16518
20M
20.00 mi13:46:172:49:478:2912:06
8:54
#16453
21M
21.00 mi13:56:012:59:318:339:44
9:44
#16481
35K
21.75 mi14:02:363:06:068:336:35
8:48
#16497
23M
23.00 mi14:14:363:18:068:3712:00
9:35
#16659
24M
24.00 mi14:23:203:26:508:378:44
8:44
#16613
40K
24.85 mi14:31:363:35:068:398:16
9:40
#16737
25.2M
25.20 mi14:35:053:38:358:403:29
10:06
#16740
Finish
26.22 mi14:44:023:47:328:418:57
8:47
#16759
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi172246083608316974(Top 64%)5895(Top 52%)5895(Top 314%)
10K6.21 mi3.10 mi17329-1056129-466129-4617494(Top 66%)6179(Top 54%)6179(Top 329%)
15K9.32 mi3.11 mi17205+1246036+936036+9316974(Top 64%)5895(Top 52%)5895(Top 314%)
20K12.43 mi3.11 mi16875+3305853+1835853+18316031(Top 60%)5369(Top 47%)5369(Top 286%)
Half13.11 mi0.68 mi16863+125839+145839+1416726(Top 63%)5737(Top 50%)5737(Top 305%)
25K15.53 mi2.42 mi16781+825822+175822+1716235(Top 61%)5582(Top 49%)5582(Top 297%)
30K18.64 mi3.11 mi16518+2635693+1295693+12915640(Top 59%)5298(Top 46%)5298(Top 282%)
20M20.00 mi1.36 mi16453+655678+155678+1516046(Top 60%)5602(Top 49%)5602(Top 298%)
21M21.00 mi1.00 mi16481-285699-215699-2116992(Top 64%)6185(Top 54%)6185(Top 329%)
35K21.75 mi0.75 mi16497-165716-175716-1716956(Top 64%)6250(Top 55%)6250(Top 333%)
23M23.00 mi1.25 mi16659-1625827-1115827-11118673(Top 70%)7221(Top 63%)7221(Top 385%)
24M24.00 mi1.00 mi16613+465813+145813+1415878(Top 60%)5743(Top 50%)5743(Top 306%)
40K24.85 mi0.85 mi16737-1245901-885901-8818924(Top 71%)7447(Top 65%)7447(Top 397%)
25.2M25.20 mi0.35 mi16740-35917-165917-1617793(Top 67%)6843(Top 60%)6843(Top 364%)
Finish26.22 mi1.02 mi16759-195938-215938-2116966(Top 64%)6353(Top 56%)6353(Top 338%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21stories
+97ft-345ft

Overall

16974

Females

5895

F40-44

5895

5K→10K

3.1 - 6.2 mi

Top 66%
×5stories
+79ft-138ft

Overall

17494

Females

6179

F40-44

6179

10K→15K

6.2 - 9.3 mi

Top 64%
×3stories
+67ft-78ft

Overall

16974

Females

5895

F40-44

5895

15K→20K

9.3 - 12.4 mi

Top 60%
×5stories
+106ft-86ft

Overall

16031

Females

5369

F40-44

5369

20K→Half

12.4 - 13.1 mi

Top 63%
×2stories
+19ft-37ft

Overall

16726

Females

5737

F40-44

5737

Half→25K

13.1 - 15.5 mi

Top 61%
×4stories
+66ft-88ft

Overall

16235

Females

5582

F40-44

5582

25K→30K

15.5 - 18.6 mi

Top 59%
×9stories
+181ft-148ft

Overall

15640

Females

5298

F40-44

5298

30K→20M

18.6 - 20.0 mi

Top 60%
×5stories
+64ft-50ft

Overall

16046

Females

5602

F40-44

5602

20M→21M

20.0 - 21.0 mi

Top 64%
×8stories
+106ft-24ft

Overall

16992

Females

6185

F40-44

6185

21M→35K

21.0 - 21.8 mi

Top 64%
×7stories
+17ft-86ft

Overall

16956

Females

6250

F40-44

6250

35K→23M

21.8 - 23.0 mi

Top 70%
×5stories
+23ft-63ft

Overall

18673

Females

7221

F40-44

7221

23M→24M

23.0 - 24.0 mi

Top 60%
×6stories
+12ft-82ft

Overall

15878

Females

5743

F40-44

5743

24M→40K

24.0 - 24.9 mi

Top 71%
×1story
+6ft-20ft

Overall

18924

Females

7447

F40-44

7447

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

17793

Females

6843

F40-44

6843

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2stories
+22ft-21ft

Overall

16966

Females

6353

F40-44

6353

Passing Analysis

Category:
Athletes Passed
1886
Passed By
1421
Net Change
+465
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17224
5K → 10K274379-105#17224#17329
10K → 15K252128+124#17329#17205
15K → 20K38050+330#17205#16875
20K → Half3826+12#16875#16863
Half → 25K15371+82#16863#16781
25K → 30K32360+263#16781#16518
30K → 20M10944+65#16518#16453
20M → 21M74102-28#16453#16481
21M → 35K4359-16#16481#16497
35K → 23M43205-162#16497#16659
23M → 24M8337+46#16659#16613
24M → 40K23147-124#16613#16737
40K → 25.2M3134-3#16737#16740
25.2M → Finish6079-19#16740#16759
TOTALS18861421+465
📊

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