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BOSTON MARATHON 2023

Elizabeth Casey

Bib: 24766•F

CT

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
30:25
Rank: #22888
Start → 5K
30:25 | 9:47/mi
10K· 6.21 mi
58:48
Rank: #22239 (+649)
5K → 10K
28:23 | 9:08/mi
15K· 9.32 mi
1:26:51
Rank: #21738 (+501)
10K → 15K
28:03 | 9:02/mi
20K· 12.43 mi
1:55:07
Rank: #21397 (+341)
15K → 20K
28:16 | 9:06/mi
Half· 13.11 mi
2:01:13
Rank: #21328 (+69)
20K → Half
6:06 | 8:56/mi
25K· 15.53 mi
2:23:28
Rank: #21077 (+251)
Half → 25K
22:15 | 9:11/mi
30K· 18.64 mi
2:54:06
Rank: #20965 (+112)
25K → 30K
30:38 | 9:52/mi
20M
3:07:14
Rank: #20834 (+131)
30K → 20M
13:08 | 9:40/mi
21M
3:17:41
Rank: #20737 (+97)
20M → 21M
10:27 | 10:27/mi
35K· 21.75 mi
3:24:37
Rank: #20657 (+80)
21M → 35K
6:56 | 9:16/mi
23M
3:37:01
Rank: #20583 (+74)
35K → 23M
12:24 | 9:54/mi
24M
3:46:50
Rank: #20560 (+23)
23M → 24M
9:49 | 9:49/mi
40K· 24.85 mi
3:55:38
Rank: #20581 (-21)
24M → 40K
8:48 | 10:18/mi
25.2M
3:59:23
Rank: #20561 (+20)
40K → 25.2M
3:45 | 10:52/mi
Finish· 26.22 mi
4:08:36
Rank: #20471 (+90)
25.2M → Finish
9:13 | 9:03/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:01:13
Pace9:15 /mi
2nd Half
Distance13.11 mi
Time2:07:23
Pace9:43 /mi
📊Positive Split: 5.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:0130:259:4730:25
9:47
-
10K
6.21 mi12:20:2458:489:2828:23
9:08
-0:39
15K
9.32 mi12:48:271:26:519:1928:03
9:02
-0:06
20K
12.43 mi13:16:431:55:079:1628:16
9:06
+0:04
Half
13.11 mi13:22:492:01:139:156:06
8:56
-0:10
25K
15.53 mi13:45:042:23:289:1422:15
9:11
+0:15
30K
18.64 mi14:15:422:54:069:2030:38
9:52
+0:41
20M
20.00 mi14:28:503:07:149:2213:08
9:40
-0:12
21M
21.00 mi14:39:173:17:419:2510:27
10:27
+0:47
35K
21.75 mi14:46:133:24:379:256:56
9:16
-1:11
23M
23.00 mi14:58:373:37:019:2612:24
9:54
+0:38
24M
24.00 mi15:08:263:46:509:279:49
9:49
-0:05
40K
24.85 mi15:17:143:55:389:298:48
10:18
+0:29
25.2M
25.20 mi15:20:593:59:239:303:45
10:52
+0:34
Finish
26.22 mi15:30:124:08:369:299:13
9:03
-1:49

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

8:56 /mi

Average Pace

9:29 /mi

Slowest Pace

10:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:09:12

52% of race

Time at Steady Pace

1:36:24

39% of race

Time at Slower Pace

23:00

9% of race

Average Pace: 9:29 /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 mi11:52:0130:259:4730:25
9:47
#22888
10K
6.21 mi12:20:2458:489:2828:23
9:08
#22239
15K
9.32 mi12:48:271:26:519:1928:03
9:02
#21738
20K
12.43 mi13:16:431:55:079:1628:16
9:06
#21397
Half
13.11 mi13:22:492:01:139:156:06
8:56
#21328
25K
15.53 mi13:45:042:23:289:1422:15
9:11
#21077
30K
18.64 mi14:15:422:54:069:2030:38
9:52
#20965
20M
20.00 mi14:28:503:07:149:2213:08
9:40
#20834
21M
21.00 mi14:39:173:17:419:2510:27
10:27
#20737
35K
21.75 mi14:46:133:24:379:256:56
9:16
#20657
23M
23.00 mi14:58:373:37:019:2612:24
9:54
#20583
24M
24.00 mi15:08:263:46:509:279:49
9:49
#20560
40K
24.85 mi15:17:143:55:389:298:48
10:18
#20581
25.2M
25.20 mi15:20:593:59:239:303:45
10:52
#20561
Finish
26.22 mi15:30:124:08:369:299:13
9:03
#20471
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi228889322932220633(Top 78%)8033(Top 70%)8033(Top 164%)
10K6.21 mi3.10 mi22239+6498967+3558967+35521428(Top 80%)8512(Top 75%)8512(Top 174%)
15K9.32 mi3.11 mi21738+5018694+2738694+27320633(Top 78%)8033(Top 70%)8033(Top 164%)
20K12.43 mi3.11 mi21397+3418493+2018493+20120140(Top 76%)7748(Top 68%)7748(Top 159%)
Half13.11 mi0.68 mi21328+698448+458448+4520240(Top 76%)7811(Top 68%)7811(Top 160%)
25K15.53 mi2.42 mi21077+2518307+1418307+14119749(Top 74%)7561(Top 66%)7561(Top 155%)
30K18.64 mi3.11 mi20965+1128262+458262+4520648(Top 78%)8136(Top 71%)8136(Top 167%)
20M20.00 mi1.36 mi20834+1318200+628200+6219468(Top 73%)7559(Top 66%)7559(Top 155%)
21M21.00 mi1.00 mi20737+978153+478153+4719455(Top 73%)7618(Top 67%)7618(Top 156%)
35K21.75 mi0.75 mi20657+808120+338120+3319057(Top 72%)7427(Top 65%)7427(Top 152%)
23M23.00 mi1.25 mi20583+748094+268094+2619709(Top 74%)7805(Top 68%)7805(Top 160%)
24M24.00 mi1.00 mi20560+238095-18095-120299(Top 76%)8152(Top 71%)8152(Top 167%)
40K24.85 mi0.85 mi20581-218123-288123-2820730(Top 78%)8457(Top 74%)8457(Top 173%)
25.2M25.20 mi0.35 mi20561+208111+128111+1220185(Top 76%)8154(Top 71%)8154(Top 167%)
Finish26.22 mi1.02 mi20471+908069+428069+4218228(Top 68%)7035(Top 62%)7035(Top 144%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21stories
+97ft-345ft

Overall

20633

Females

8033

F18-39

8033

5K→10K

3.1 - 6.2 mi

Top 80%
×5stories
+79ft-138ft

Overall

21428

Females

8512

F18-39

8512

10K→15K

6.2 - 9.3 mi

Top 78%
×3stories
+67ft-78ft

Overall

20633

Females

8033

F18-39

8033

15K→20K

9.3 - 12.4 mi

Top 76%
×5stories
+106ft-86ft

Overall

20140

Females

7748

F18-39

7748

20K→Half

12.4 - 13.1 mi

Top 76%
×2stories
+19ft-37ft

Overall

20240

Females

7811

F18-39

7811

Half→25K

13.1 - 15.5 mi

Top 74%
×4stories
+66ft-88ft

Overall

19749

Females

7561

F18-39

7561

25K→30K

15.5 - 18.6 mi

Top 78%
×9stories
+181ft-148ft

Overall

20648

Females

8136

F18-39

8136

30K→20M

18.6 - 20.0 mi

Top 73%
×5stories
+64ft-50ft

Overall

19468

Females

7559

F18-39

7559

20M→21M

20.0 - 21.0 mi

Top 73%
×8stories
+106ft-24ft

Overall

19455

Females

7618

F18-39

7618

21M→35K

21.0 - 21.8 mi

Top 72%
×7stories
+17ft-86ft

Overall

19057

Females

7427

F18-39

7427

35K→23M

21.8 - 23.0 mi

Top 74%
×5stories
+23ft-63ft

Overall

19709

Females

7805

F18-39

7805

23M→24M

23.0 - 24.0 mi

Top 76%
×6stories
+12ft-82ft

Overall

20299

Females

8152

F18-39

8152

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

20730

Females

8457

F18-39

8457

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

20185

Females

8154

F18-39

8154

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2stories
+22ft-21ft

Overall

18228

Females

7035

F18-39

7035

Passing Analysis

Category:
Athletes Passed
2806
Passed By
389
Net Change
+2417
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22888
5K → 10K69344+649#22888#22239
10K → 15K51716+501#22239#21738
15K → 20K36322+341#21738#21397
20K → Half745+69#21397#21328
Half → 25K26817+251#21328#21077
25K → 30K20694+112#21077#20965
30K → 20M15019+131#20965#20834
20M → 21M11518+97#20834#20737
21M → 35K855+80#20737#20657
35K → 23M10228+74#20657#20583
23M → 24M5936+23#20583#20560
24M → 40K4061-21#20560#20581
40K → 25.2M3111+20#20581#20561
25.2M → Finish10313+90#20561#20471
TOTALS2806389+2417
📊

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