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BOSTON MARATHON 2023

Kara Mcclaskey

OR

Bib: 17116 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 34%
Gender (Female)
#0 / 11423
Top 14%
Masters (Masters Women)
#0 / 6539
Top 5%
Division (F45-49)
#0 / 1817
Top 5%
Race Day Weather
49°/39°F
light intensity drizzle

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:06/mi
22:03
↑ 97↓ 345
10K· 6.21 mi
7:04/mi
43:59
↑ 79↓ 138
15K· 9.32 mi
7:12/mi
1:06:21
↑ 67↓ 78
20K· 12.43 mi
7:51/mi
1:30:43
↑ 106↓ 86
Half· 13.11 mi
7:07/mi
1:35:34
↑ 19↓ 37
25K· 15.53 mi
7:41/mi
1:54:12
↑ 66↓ 88
30K· 18.64 mi
7:55/mi
2:18:49
↑ 181↓ 148
20M
8:08/mi
2:29:52
↑ 64↓ 50
21M
8:47/mi
2:38:39
↑ 106↓ 24
35K· 21.75 mi
7:57/mi
2:44:36
↑ 17↓ 86
23M
7:56/mi
2:54:32
↑ 23↓ 63
24M
7:45/mi
3:02:17
↓ 82
40K· 24.85 mi
8:07/mi
3:09:13
↓ 20
25.2M
7:32/mi
3:11:49
↑ 13↓ 16
Finish· 26.22 mi
7:19/mi
3:19:16
↑ 22↓ 21
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:35:347:17 /mi⚡ faster
2nd Half
1:43:427:55 /mi+8.5%
Positive split — 8.5% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
22:037:063.11 mi22:03
7:06
-
10K
43:597:053.10 mi21:56
7:04
-0:02
15K
1:06:217:073.11 mi22:22
7:12
+0:08
20K
1:30:437:183.11 mi24:22
7:51
+0:39
Half(13.11 mi)
1:35:347:170.68 mi4:51
7:07
-0:44
25K
1:54:127:212.42 mi18:38
7:41
+0:34
30K
2:18:497:273.11 mi24:37
7:55
+0:14
20M
2:29:527:301.36 mi11:03
8:08
+0:13
21M
2:38:397:331.00 mi8:47
8:47
+0:39
35K
2:44:367:340.75 mi5:57
7:57
-0:50
23M
2:54:327:351.25 mi9:56
7:56
-0:01
24M
3:02:177:361.00 mi7:45
7:45
-0:11
40K
3:09:137:370.85 mi6:56
8:07
+0:22
25.2M
3:11:497:370.35 mi2:36
7:32
-0:35
Finish(26.22 mi)
3:19:167:361.02 mi7:27
7:19
-0:13
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

7:04 /mi

Average Pace

7:36 /mi

Slowest Pace

8:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

1:18:39

39% of race

Time at Steady Pace

1:33:51

47% of race

Time at Slower Pace

26:46

13% of race

Average Pace: 7:36 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi6881690690780510101010
10K3.10 mi6980-99728-38728-387193812812
15K3.11 mi7237-257804-76804-76780510101010
20K3.11 mi8252-10151141-3371141-3371209730203020
Half(13.11 mi)0.68 mi8194+581120+211120+217303869869
25K2.42 mi8453-2591242-1221242-1221019820812081
30K3.11 mi8731-2781382-1401382-1401032023102310
20M1.36 mi8900-1691465-831465-831124328392839
21M1.00 mi9061-1611557-921557-921216034813481
35K0.75 mi9149-881611-541611-541178032873287
23M1.25 mi9145+41635-241635-24931321732173
24M1.00 mi9134+111649-141649-14943923002300
40K0.85 mi9151-171676-271676-271077030183018
25.2M0.35 mi9065+861645+311645+314194520520
Finish(26.22 mi)1.02 mi8960+1051624+211624+21722315161516

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 29%
×21story building
+97ft-345ft

Overall

7805

Females

1010

F45-49

1010

5K→10K

3.1 - 6.2 mi

Top 27%
×5story building
+79ft-138ft

Overall

7193

Females

812

F45-49

812

10K→15K

6.2 - 9.3 mi

Top 29%
×3story building
+67ft-78ft

Overall

7805

Females

1010

F45-49

1010

15K→20K

9.3 - 12.4 mi

Top 45%
×5story building
+106ft-86ft

Overall

12097

Females

3020

F45-49

3020

20K→Half

12.4 - 13.1 mi

Top 27%
×2story building
+19ft-37ft

Overall

7303

Females

869

F45-49

869

Half→25K

13.1 - 15.5 mi

Top 38%
×4story building
+66ft-88ft

Overall

10198

Females

2081

F45-49

2081

25K→30K

15.5 - 18.6 mi

Top 39%
×9story building
+181ft-148ft

Overall

10320

Females

2310

F45-49

2310

30K→20M

18.6 - 20.0 mi

Top 42%
×5story building
+64ft-50ft

Overall

11243

Females

2839

F45-49

2839

20M→21M

20.0 - 21.0 mi

Top 46%
×8story building
+106ft-24ft

Overall

12160

Females

3481

F45-49

3481

21M→35K

21.0 - 21.8 mi

Top 44%
×7story building
+17ft-86ft

Overall

11780

Females

3287

F45-49

3287

35K→23M

21.8 - 23.0 mi

Top 35%
×5story building
+23ft-63ft

Overall

9313

Females

2173

F45-49

2173

23M→24M

23.0 - 24.0 mi

Top 35%
×6story building
+12ft-82ft

Overall

9439

Females

2300

F45-49

2300

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

10770

Females

3018

F45-49

3018

40K→25.2M

24.9 - 25.2 mi

Top 16%
×1story
+13ft-16ft

Overall

4194

Females

520

F45-49

520

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2story building
+22ft-21ft

Overall

7223

Females

1516

F45-49

1516

Passing Analysis

Category:
▼Net Change
0
0 passed by0 passed
SegmentMovementRank
Start → 5K-#6881
5K → 10K
259160-99
#6881 → #6980
10K → 15K
31255-257
#6980 → #7237
15K → 20K
10238-1015
#7237 → #8252
20K → Half
260+58
#8252 → #8194
Half → 25K
30647-259
#8194 → #8453
25K → 30K
36688-278
#8453 → #8731
30K → 20M
21041-169
#8731 → #8900
20M → 21M
19938-161
#8900 → #9061
21M → 35K
10719-88
#9061 → #9149
35K → 23M
8488+4
#9149 → #9145
23M → 24M
5263+11
#9145 → #9134
24M → 40K
6851-17
#9134 → #9151
40K → 25.2M
086+86
#9151 → #9065
25.2M → Finish
22127+105
#9065 → #8960
TOTALS
3010931-2079
#6881 → #8960

Passing Visualized

Category:
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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