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BOSTON MARATHON 2023

Cathy Markham

Bib: 23615•F

MI

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F55-59)
#0 / 815
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:53
Rank: #20347
Start → 5K
27:53 | 8:58/mi
10K· 6.21 mi
56:31
Rank: #21033 (-686)
5K → 10K
28:38 | 9:13/mi
15K· 9.32 mi
1:25:31
Rank: #21280 (-247)
10K → 15K
29:00 | 9:20/mi
20K· 12.43 mi
1:55:07
Rank: #21399 (-119)
15K → 20K
29:36 | 9:32/mi
Half· 13.11 mi
2:01:37
Rank: #21432 (-33)
20K → Half
6:30 | 9:32/mi
25K· 15.53 mi
2:25:40
Rank: #21531 (-99)
Half → 25K
24:03 | 9:55/mi
30K· 18.64 mi
2:59:05
Rank: #21767 (-236)
25K → 30K
33:25 | 10:45/mi
20M
3:13:51
Rank: #21859 (-92)
30K → 20M
14:46 | 10:52/mi
21M
3:26:36
Rank: #22038 (-179)
20M → 21M
12:45 | 12:45/mi
35K· 21.75 mi
3:34:10
Rank: #22020 (+18)
21M → 35K
7:34 | 10:07/mi
23M
3:48:06
Rank: #22050 (-30)
35K → 23M
13:56 | 11:08/mi
24M
3:58:35
Rank: #22037 (+13)
23M → 24M
10:29 | 10:29/mi
40K· 24.85 mi
4:07:55
Rank: #22037
24M → 40K
9:20 | 10:55/mi
25.2M
4:12:02
Rank: #22054 (-17)
40K → 25.2M
4:07 | 11:56/mi
Finish· 26.22 mi
4:22:38
Rank: #22071 (-17)
25.2M → Finish
10:36 | 10:24/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:01:37
Pace9:17 /mi
2nd Half
Distance13.11 mi
Time2:21:01
Pace10:45 /mi
📊Positive Split: 16.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:0027:538:5827:53
8:58
-
10K
6.21 mi11:51:3856:319:0628:38
9:13
+0:15
15K
9.32 mi12:20:381:25:319:1129:00
9:20
+0:07
20K
12.43 mi12:50:141:55:079:1629:36
9:32
+0:12
Half
13.11 mi12:56:442:01:379:176:30
9:32
0:00
25K
15.53 mi13:20:472:25:409:2324:03
9:55
+0:23
30K
18.64 mi13:54:122:59:059:3633:25
10:45
+0:50
20M
20.00 mi14:08:583:13:519:4214:46
10:52
+0:07
21M
21.00 mi14:21:433:26:369:5012:45
12:45
+1:53
35K
21.75 mi14:29:173:34:109:517:34
10:07
-2:38
23M
23.00 mi14:43:133:48:069:5513:56
11:08
+1:01
24M
24.00 mi14:53:423:58:359:5610:29
10:29
-0:39
40K
24.85 mi15:03:024:07:559:589:20
10:55
+0:26
25.2M
25.20 mi15:07:094:12:0210:004:07
11:56
+1:01
Finish
26.22 mi15:17:454:22:3810:0110:36
10:24
-1:32

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

8:58 /mi

Average Pace

10:01 /mi

Slowest Pace

12:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:01:37

46% of race

Time at Steady Pace

1:40:53

38% of race

Time at Slower Pace

40:08

15% of race

Average Pace: 10:01 /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 mi11:23:0027:538:5827:53
8:58
#20347
10K
6.21 mi11:51:3856:319:0628:38
9:13
#21033
15K
9.32 mi12:20:381:25:319:1129:00
9:20
#21280
20K
12.43 mi12:50:141:55:079:1629:36
9:32
#21399
Half
13.11 mi12:56:442:01:379:176:30
9:32
#21432
25K
15.53 mi13:20:472:25:409:2324:03
9:55
#21531
30K
18.64 mi13:54:122:59:059:3633:25
10:45
#21767
20M
20.00 mi14:08:583:13:519:4214:46
10:52
#21859
21M
21.00 mi14:21:433:26:369:5012:45
12:45
#22038
35K
21.75 mi14:29:173:34:109:517:34
10:07
#22020
23M
23.00 mi14:43:133:48:069:5513:56
11:08
#22050
24M
24.00 mi14:53:423:58:359:5610:29
10:29
#22037
40K
24.85 mi15:03:024:07:559:589:20
10:55
#22037
25.2M
25.20 mi15:07:094:12:0210:004:07
11:56
#22054
Finish
26.22 mi15:17:454:22:3810:0110:36
10:24
#22071
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi203478026802621762(Top 82%)8656(Top 76%)8656(Top 1062%)
10K6.21 mi3.10 mi21033-6868341-3158341-31521673(Top 81%)8644(Top 76%)8644(Top 1061%)
15K9.32 mi3.11 mi21280-2478431-908431-9021762(Top 82%)8656(Top 76%)8656(Top 1062%)
20K12.43 mi3.11 mi21399-1198495-648495-6421647(Top 81%)8600(Top 75%)8600(Top 1055%)
Half13.11 mi0.68 mi21432-338510-158510-1522216(Top 83%)8903(Top 78%)8903(Top 1092%)
25K15.53 mi2.42 mi21531-998563-538563-5322038(Top 83%)8856(Top 78%)8856(Top 1087%)
30K18.64 mi3.11 mi21767-2368699-1368699-13622713(Top 85%)9307(Top 81%)9307(Top 1142%)
20M20.00 mi1.36 mi21859-928765-668765-6622455(Top 84%)9228(Top 81%)9228(Top 1132%)
21M21.00 mi1.00 mi22038-1798878-1138878-11323761(Top 89%)9959(Top 87%)9959(Top 1222%)
35K21.75 mi0.75 mi22020+188872+68872+621608(Top 81%)8832(Top 77%)8832(Top 1084%)
23M23.00 mi1.25 mi22050-308898-268898-2622594(Top 85%)9374(Top 82%)9374(Top 1150%)
24M24.00 mi1.00 mi22037+138898889822013(Top 83%)9106(Top 80%)9106(Top 1117%)
40K24.85 mi0.85 mi220378910-128910-1222186(Top 83%)9230(Top 81%)9230(Top 1133%)
25.2M25.20 mi0.35 mi22054-178922-128922-1222397(Top 84%)9345(Top 82%)9345(Top 1147%)
Finish26.22 mi1.02 mi22071-178943-218943-2122813(Top 86%)9556(Top 84%)9556(Top 1173%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21stories
+97ft-345ft

Overall

21762

Females

8656

F55-59

8656

5K→10K

3.1 - 6.2 mi

Top 81%
×5stories
+79ft-138ft

Overall

21673

Females

8644

F55-59

8644

10K→15K

6.2 - 9.3 mi

Top 82%
×3stories
+67ft-78ft

Overall

21762

Females

8656

F55-59

8656

15K→20K

9.3 - 12.4 mi

Top 81%
×5stories
+106ft-86ft

Overall

21647

Females

8600

F55-59

8600

20K→Half

12.4 - 13.1 mi

Top 83%
×2stories
+19ft-37ft

Overall

22216

Females

8903

F55-59

8903

Half→25K

13.1 - 15.5 mi

Top 83%
×4stories
+66ft-88ft

Overall

22038

Females

8856

F55-59

8856

25K→30K

15.5 - 18.6 mi

Top 85%
×9stories
+181ft-148ft

Overall

22713

Females

9307

F55-59

9307

30K→20M

18.6 - 20.0 mi

Top 84%
×5stories
+64ft-50ft

Overall

22455

Females

9228

F55-59

9228

20M→21M

20.0 - 21.0 mi

Top 89%
×8stories
+106ft-24ft

Overall

23761

Females

9959

F55-59

9959

21M→35K

21.0 - 21.8 mi

Top 81%
×7stories
+17ft-86ft

Overall

21608

Females

8832

F55-59

8832

35K→23M

21.8 - 23.0 mi

Top 85%
×5stories
+23ft-63ft

Overall

22594

Females

9374

F55-59

9374

23M→24M

23.0 - 24.0 mi

Top 83%
×6stories
+12ft-82ft

Overall

22013

Females

9106

F55-59

9106

24M→40K

24.0 - 24.9 mi

Top 83%
×1story
+6ft-20ft

Overall

22186

Females

9230

F55-59

9230

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

22397

Females

9345

F55-59

9345

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2stories
+22ft-21ft

Overall

22813

Females

9556

F55-59

9556

Passing Analysis

Category:
Athletes Passed
677
Passed By
2401
Net Change
-1724
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20347
5K → 10K76762-686#20347#21033
10K → 15K80327-247#21033#21280
15K → 20K95214-119#21280#21399
20K → Half1548-33#21399#21432
Half → 25K73172-99#21432#21531
25K → 30K70306-236#21531#21767
30K → 20M46138-92#21767#21859
20M → 21M21200-179#21859#22038
21M → 35K3719+18#22038#22020
35K → 23M3868-30#22020#22050
23M → 24M4633+13#22050#22037
24M → 40K42420#22037#22037
40K → 25.2M1027-17#22037#22054
25.2M → Finish2845-17#22054#22071
TOTALS6772401-1724
📊

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