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BOSTON MARATHON 2023

Kayla Contardi

Bib: 15684•F

RI

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:58
Rank: #21610
Start → 5K
9:19/mi
28:58 split
10K· 6.21 mi
58:20
Rank: #22017 (-407)
5K → 10K
9:27/mi
29:22 split
15K· 9.32 mi
1:27:43
Rank: #22016 (+1)
10K → 15K
9:27/mi
29:23 split
20K· 12.43 mi
1:57:31
Rank: #21971 (+45)
15K → 20K
9:36/mi
29:48 split
Half· 13.11 mi
2:03:50
Rank: #21925 (+46)
20K → Half
9:16/mi
6:19 split
25K· 15.53 mi
2:27:18
Rank: #21843 (+82)
Half → 25K
9:41/mi
23:28 split
30K· 18.64 mi
2:58:52
Rank: #21732 (+111)
25K → 30K
10:10/mi
31:34 split
20M
3:12:58
Rank: #21724 (+8)
30K → 20M
10:23/mi
14:06 split
21M
3:24:09
Rank: #21719 (+5)
20M → 21M
11:11/mi
11:11 split
35K· 21.75 mi
3:31:35
Rank: #21698 (+21)
21M → 35K
9:56/mi
7:26 split
23M
3:44:35
Rank: #21642 (+56)
35K → 23M
10:23/mi
13:00 split
24M
3:55:02
Rank: #21670 (-28)
23M → 24M
10:27/mi
10:27 split
40K· 24.85 mi
4:04:17
Rank: #21683 (-13)
24M → 40K
10:49/mi
9:15 split
25.2M
4:08:10
Rank: #21677 (+6)
40K → 25.2M
11:16/mi
3:53 split
Finish· 26.22 mi
4:18:24
Rank: #21678 (-1)
25.2M → Finish
10:03/mi
10:14 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:03:50
Pace9:27 /mi
2nd Half
Distance13.11 mi
Time2:14:34
Pace10:16 /mi
📊Positive Split: 8.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:59:2728:589:1928:58
9:19
-
10K
6.21 mi11:28:4958:209:2329:22
9:27
+0:08
15K
9.32 mi11:58:121:27:439:2529:23
9:27
0:00
20K
12.43 mi12:28:001:57:319:2729:48
9:36
+0:09
Half
13.11 mi12:34:192:03:509:276:19
9:16
-0:20
25K
15.53 mi12:57:472:27:189:2923:28
9:41
+0:25
30K
18.64 mi13:29:212:58:529:3631:34
10:10
+0:29
20M
20.00 mi13:43:273:12:589:3914:06
10:23
+0:13
21M
21.00 mi13:54:383:24:099:4311:11
11:11
+0:48
35K
21.75 mi14:02:043:31:359:447:26
9:56
-1:15
23M
23.00 mi14:15:043:44:359:4613:00
10:23
+0:27
24M
24.00 mi14:25:313:55:029:4810:27
10:27
+0:04
40K
24.85 mi14:34:464:04:179:509:15
10:49
+0:22
25.2M
25.20 mi14:38:394:08:109:513:53
11:16
+0:27
Finish
26.22 mi14:48:534:18:249:5210:14
10:03
-1:13

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

9:16 /mi

Average Pace

9:52 /mi

Slowest Pace

11:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:27:18

57% of race

Time at Steady Pace

49:14

19% of race

Time at Slower Pace

1:01:52

24% of race

Average Pace: 9:51 /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 mi10:59:2728:589:1928:58
9:19
#21610
10K
6.21 mi11:28:4958:209:2329:22
9:27
#22017
15K
9.32 mi11:58:121:27:439:2529:23
9:27
#22016
20K
12.43 mi12:28:001:57:319:2729:48
9:36
#21971
Half
13.11 mi12:34:192:03:509:276:19
9:16
#21925
25K
15.53 mi12:57:472:27:189:2923:28
9:41
#21843
30K
18.64 mi13:29:212:58:529:3631:34
10:10
#21732
20M
20.00 mi13:43:273:12:589:3914:06
10:23
#21724
21M
21.00 mi13:54:383:24:099:4311:11
11:11
#21719
35K
21.75 mi14:02:043:31:359:447:26
9:56
#21698
23M
23.00 mi14:15:043:44:359:4613:00
10:23
#21642
24M
24.00 mi14:25:313:55:029:4810:27
10:27
#21670
40K
24.85 mi14:34:464:04:179:509:15
10:49
#21683
25.2M
25.20 mi14:38:394:08:109:513:53
11:16
#21677
Finish
26.22 mi14:48:534:18:249:5210:14
10:03
#21678
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi216108698869822133(Top 83%)8866(Top 78%)8866(Top 182%)
10K6.21 mi3.10 mi22017-4078864-1668864-16622377(Top 84%)9018(Top 79%)9018(Top 185%)
15K9.32 mi3.11 mi22016+18849+158849+1522133(Top 83%)8866(Top 78%)8866(Top 182%)
20K12.43 mi3.11 mi21971+458819+308819+3021834(Top 82%)8703(Top 76%)8703(Top 178%)
Half13.11 mi0.68 mi21925+468789+308789+3021395(Top 80%)8467(Top 74%)8467(Top 173%)
25K15.53 mi2.42 mi21843+828735+548735+5421395(Top 80%)8497(Top 74%)8497(Top 174%)
30K18.64 mi3.11 mi21732+1118685+508685+5021444(Top 81%)8599(Top 75%)8599(Top 176%)
20M20.00 mi1.36 mi21724+88689-48689-421469(Top 81%)8681(Top 76%)8681(Top 178%)
21M21.00 mi1.00 mi21719+58699-108699-1021239(Top 80%)8593(Top 75%)8593(Top 176%)
35K21.75 mi0.75 mi21698+218699869921129(Top 79%)8558(Top 75%)8558(Top 175%)
23M23.00 mi1.25 mi21642+568683+168683+1621044(Top 79%)8548(Top 75%)8548(Top 175%)
24M24.00 mi1.00 mi21670-288709-268709-2621930(Top 82%)9066(Top 79%)9066(Top 186%)
40K24.85 mi0.85 mi21683-138728-198728-1921981(Top 83%)9141(Top 80%)9141(Top 187%)
25.2M25.20 mi0.35 mi21677+68732-48732-421069(Top 79%)8628(Top 76%)8628(Top 177%)
Finish26.22 mi1.02 mi21678-18734-28734-221886(Top 82%)9057(Top 79%)9057(Top 185%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 83%
×21story building
+97ft-345ft

Overall

22133

Females

8866

F18-39

8866

5K→10K

3.1 - 6.2 mi

Top 84%
×5story building
+79ft-138ft

Overall

22377

Females

9018

F18-39

9018

10K→15K

6.2 - 9.3 mi

Top 83%
×3story building
+67ft-78ft

Overall

22133

Females

8866

F18-39

8866

15K→20K

9.3 - 12.4 mi

Top 82%
×5story building
+106ft-86ft

Overall

21834

Females

8703

F18-39

8703

20K→Half

12.4 - 13.1 mi

Top 80%
×2story building
+19ft-37ft

Overall

21395

Females

8467

F18-39

8467

Half→25K

13.1 - 15.5 mi

Top 80%
×4story building
+66ft-88ft

Overall

21395

Females

8497

F18-39

8497

25K→30K

15.5 - 18.6 mi

Top 81%
×9story building
+181ft-148ft

Overall

21444

Females

8599

F18-39

8599

30K→20M

18.6 - 20.0 mi

Top 81%
×5story building
+64ft-50ft

Overall

21469

Females

8681

F18-39

8681

20M→21M

20.0 - 21.0 mi

Top 80%
×8story building
+106ft-24ft

Overall

21239

Females

8593

F18-39

8593

21M→35K

21.0 - 21.8 mi

Top 79%
×7story building
+17ft-86ft

Overall

21129

Females

8558

F18-39

8558

35K→23M

21.8 - 23.0 mi

Top 79%
×5story building
+23ft-63ft

Overall

21044

Females

8548

F18-39

8548

23M→24M

23.0 - 24.0 mi

Top 82%
×6story building
+12ft-82ft

Overall

21930

Females

9066

F18-39

9066

24M→40K

24.0 - 24.9 mi

Top 83%
×1story
+6ft-20ft

Overall

21981

Females

9141

F18-39

9141

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

21069

Females

8628

F18-39

8628

25.2M→Finish

25.2 - 26.2 mi

Top 82%
×2story building
+22ft-21ft

Overall

21886

Females

9057

F18-39

9057

Passing Analysis

Category:
Athletes Passed
1200
Passed By
1268
Net Change
-68
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21610
5K → 10K114521-407#21610#22017
10K → 15K170169+1#22017#22016
15K → 20K160115+45#22016#21971
20K → Half526+46#21971#21925
Half → 25K14361+82#21925#21843
25K → 30K19685+111#21843#21732
30K → 20M5850+8#21732#21724
20M → 21M5752+5#21724#21719
21M → 35K4120+21#21719#21698
35K → 23M8933+56#21698#21642
23M → 24M3664-28#21642#21670
24M → 40K3447-13#21670#21683
40K → 25.2M1812+6#21683#21677
25.2M → Finish3233-1#21677#21678
TOTALS12001268-68
📊

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