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BOSTON MARATHON 2023

Kimberly Cotter

Bib: 21883•F

NH

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

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:43/mi
27:05
↑ 97↓ 3451.5%
10K· 6.21 mi
8:42/mi
54:06
↑ 79↓ 1380.4%
15K· 9.32 mi
9:05/mi
1:22:18
↑ 67↓ 78
20K· 12.43 mi
9:02/mi
1:50:22
↑ 106↓ 860.1%
Half· 13.11 mi
9:02/mi
1:56:32
↑ 19↓ 370.5%
25K· 15.53 mi
9:27/mi
2:19:27
↑ 66↓ 880.2%
30K· 18.64 mi
9:57/mi
2:50:21
↑ 181↓ 1480.2%
20M
9:43/mi
3:03:33
↑ 64↓ 500.2%
21M
12:58/mi
3:16:31
↑ 106↓ 241.6%
35K· 21.75 mi
9:37/mi
3:23:43
↑ 17↓ 861.7%
23M
10:36/mi
3:36:59
↑ 23↓ 630.6%
24M
10:09/mi
3:47:08
↓ 821.3%
40K· 24.85 mi
10:51/mi
3:56:25
↓ 200.3%
25.2M
11:56/mi
4:00:32
↑ 13↓ 160.2%
Finish· 26.22 mi
9:54/mi
4:10:37
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:32
Pace8:53 /mi
2nd Half
Distance13.11 mi
Time2:14:05
Pace10:14 /mi
📊Positive Split: 15.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:3127:058:4327:05
8:43
-
10K
6.21 mi11:48:3254:068:4227:01
8:42
-0:01
15K
9.32 mi12:16:441:22:188:5028:12
9:05
+0:23
20K
12.43 mi12:44:481:50:228:5328:04
9:02
-0:03
Half
13.11 mi12:50:581:56:328:536:10
9:02
0:00
25K
15.53 mi13:13:532:19:278:5922:55
9:27
+0:25
30K
18.64 mi13:44:472:50:219:0830:54
9:57
+0:30
20M
20.00 mi13:57:593:03:339:1113:12
9:43
-0:14
21M
21.00 mi14:10:573:16:319:2112:58
12:58
+3:15
35K
21.75 mi14:18:093:23:439:227:12
9:37
-3:21
23M
23.00 mi14:31:253:36:599:2613:16
10:36
+0:59
24M
24.00 mi14:41:343:47:089:2810:09
10:09
-0:27
40K
24.85 mi14:50:513:56:259:319:17
10:51
+0:42
25.2M
25.20 mi14:54:584:00:329:334:07
11:56
+1:05
Finish
26.22 mi15:05:034:10:379:3410:05
9:54
-2:02

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

8:42 /mi

Average Pace

9:34 /mi

Slowest Pace

12:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:56:32

46% of race

Time at Steady Pace

1:34:27

38% of race

Time at Slower Pace

39:38

16% of race

Average Pace: 9:33 /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 mi11:21:3127:058:4327:05
8:43
#19004
10K
6.21 mi11:48:3254:068:4227:01
8:42
#19145
15K
9.32 mi12:16:441:22:188:5028:12
9:05
#19766
20K
12.43 mi12:44:481:50:228:5328:04
9:02
#19761
Half
13.11 mi12:50:581:56:328:536:10
9:02
#19805
25K
15.53 mi13:13:532:19:278:5922:55
9:27
#20009
30K
18.64 mi13:44:472:50:219:0830:54
9:57
#20230
20M
20.00 mi13:57:593:03:339:1113:12
9:43
#20169
21M
21.00 mi14:10:573:16:319:2112:58
12:58
#20535
35K
21.75 mi14:18:093:23:439:227:12
9:37
#20524
23M
23.00 mi14:31:253:36:599:2613:16
10:36
#20578
24M
24.00 mi14:41:343:47:089:2810:09
10:09
#20608
40K
24.85 mi14:50:513:56:259:319:17
10:51
#20670
25.2M
25.20 mi14:54:584:00:329:334:07
11:56
#20705
Finish
26.22 mi15:05:034:10:379:3410:05
9:54
#20724
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi190047213721320848(Top 78%)8153(Top 71%)8153(Top 1000%)
10K6.21 mi3.10 mi19145-1417246-337246-3319426(Top 73%)7336(Top 64%)7336(Top 900%)
15K9.32 mi3.11 mi19766-6217600-3547600-35420848(Top 78%)8153(Top 71%)8153(Top 1000%)
20K12.43 mi3.11 mi19761+57580+207580+2019876(Top 75%)7610(Top 67%)7610(Top 934%)
Half13.11 mi0.68 mi19805-447603-237603-2320631(Top 77%)8044(Top 70%)8044(Top 987%)
25K15.53 mi2.42 mi20009-2047713-1107713-11020690(Top 78%)8098(Top 71%)8098(Top 994%)
30K18.64 mi3.11 mi20230-2217860-1477860-14720876(Top 78%)8273(Top 72%)8273(Top 1015%)
20M20.00 mi1.36 mi20169+617841+197841+1919607(Top 74%)7643(Top 67%)7643(Top 938%)
21M21.00 mi1.00 mi20535-3668048-2078048-20724038(Top 90%)10110(Top 89%)10110(Top 1240%)
35K21.75 mi0.75 mi20524+118055-78055-720245(Top 76%)8083(Top 71%)8083(Top 992%)
23M23.00 mi1.25 mi20578-548092-378092-3721555(Top 81%)8819(Top 77%)8819(Top 1082%)
24M24.00 mi1.00 mi20608-308131-398131-3921202(Top 80%)8669(Top 76%)8669(Top 1064%)
40K24.85 mi0.85 mi20670-628170-398170-3922060(Top 83%)9175(Top 80%)9175(Top 1126%)
25.2M25.20 mi0.35 mi20705-358198-288198-2822385(Top 84%)9333(Top 82%)9333(Top 1145%)
Finish26.22 mi1.02 mi20724-198212-148212-1421475(Top 81%)8831(Top 77%)8831(Top 1084%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21story building
+97ft-345ft

Overall

20848

Females

8153

F55-59

8153

5K→10K

3.1 - 6.2 mi

Top 73%
×5story building
+79ft-138ft

Overall

19426

Females

7336

F55-59

7336

10K→15K

6.2 - 9.3 mi

Top 78%
×3story building
+67ft-78ft

Overall

20848

Females

8153

F55-59

8153

15K→20K

9.3 - 12.4 mi

Top 75%
×5story building
+106ft-86ft

Overall

19876

Females

7610

F55-59

7610

20K→Half

12.4 - 13.1 mi

Top 77%
×2story building
+19ft-37ft

Overall

20631

Females

8044

F55-59

8044

Half→25K

13.1 - 15.5 mi

Top 78%
×4story building
+66ft-88ft

Overall

20690

Females

8098

F55-59

8098

25K→30K

15.5 - 18.6 mi

Top 78%
×9story building
+181ft-148ft

Overall

20876

Females

8273

F55-59

8273

30K→20M

18.6 - 20.0 mi

Top 74%
×5story building
+64ft-50ft

Overall

19607

Females

7643

F55-59

7643

20M→21M

20.0 - 21.0 mi

Top 90%
×8story building
+106ft-24ft

Overall

24038

Females

10110

F55-59

10110

21M→35K

21.0 - 21.8 mi

Top 76%
×7story building
+17ft-86ft

Overall

20245

Females

8083

F55-59

8083

35K→23M

21.8 - 23.0 mi

Top 81%
×5story building
+23ft-63ft

Overall

21555

Females

8819

F55-59

8819

23M→24M

23.0 - 24.0 mi

Top 80%
×6story building
+12ft-82ft

Overall

21202

Females

8669

F55-59

8669

24M→40K

24.0 - 24.9 mi

Top 83%
×1story
+6ft-20ft

Overall

22060

Females

9175

F55-59

9175

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

22385

Females

9333

F55-59

9333

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2story building
+22ft-21ft

Overall

21475

Females

8831

F55-59

8831

Passing Analysis

Category:
Athletes Passed
970
Passed By
2690
Net Change
-1720
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19004
5K → 10K274415-141#19004#19145
10K → 15K37658-621#19145#19766
15K → 20K180175+5#19766#19761
20K → Half1559-44#19761#19805
Half → 25K67271-204#19805#20009
25K → 30K85306-221#20009#20230
30K → 20M10645+61#20230#20169
20M → 21M12378-366#20169#20535
21M → 35K4736+11#20535#20524
35K → 23M50104-54#20524#20578
23M → 24M3868-30#20578#20608
24M → 40K2385-62#20608#20670
40K → 25.2M742-35#20670#20705
25.2M → Finish2948-19#20705#20724
TOTALS9702690-1720
📊

Passing Visuals

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