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BOSTON MARATHON 2023

Courtney Shea

Bib: 27388•F

MA

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
28:22
Rank: #20979
Start → 5K
28:22 | 9:08/mi
10K· 6.21 mi
55:51
Rank: #20603 (+376)
5K → 10K
27:29 | 8:51/mi
15K· 9.32 mi
1:22:59
Rank: #20140 (+463)
10K → 15K
27:08 | 8:44/mi
20K· 12.43 mi
1:52:21
Rank: #20540 (-400)
15K → 20K
29:22 | 9:27/mi
Half· 13.11 mi
2:00:13
Rank: #21081 (-541)
20K → Half
7:52 | 11:32/mi
25K· 15.53 mi
2:23:19
Rank: #21031 (+50)
Half → 25K
23:06 | 9:32/mi
30K· 18.64 mi
2:53:44
Rank: #20903 (+128)
25K → 30K
30:25 | 9:47/mi
20M
3:06:44
Rank: #20729 (+174)
30K → 20M
13:00 | 9:34/mi
21M
3:16:34
Rank: #20541 (+188)
20M → 21M
9:50 | 9:50/mi
35K· 21.75 mi
3:23:21
Rank: #20454 (+87)
21M → 35K
6:47 | 9:04/mi
23M
3:35:01
Rank: #20295 (+159)
35K → 23M
11:40 | 9:19/mi
24M
3:44:05
Rank: #20193 (+102)
23M → 24M
9:04 | 9:04/mi
40K· 24.85 mi
3:51:32
Rank: #20035 (+158)
24M → 40K
7:27 | 8:43/mi
25.2M
3:54:33
Rank: #19932 (+103)
40K → 25.2M
3:01 | 8:45/mi
Finish· 26.22 mi
4:02:25
Rank: #19679 (+253)
25.2M → Finish
7:52 | 7:43/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:00:13
Pace9:10 /mi
2nd Half
Distance13.11 mi
Time2:02:12
Pace9:19 /mi
📊Positive Split: 1.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:3428:229:0828:22
9:08
-
10K
6.21 mi12:13:0355:518:5927:29
8:51
-0:17
15K
9.32 mi12:40:111:22:598:5427:08
8:44
-0:07
20K
12.43 mi13:09:331:52:219:0229:22
9:27
+0:43
Half
13.11 mi13:17:252:00:139:107:52
11:32
+2:05
25K
15.53 mi13:40:312:23:199:1423:06
9:32
-2:00
30K
18.64 mi14:10:562:53:449:1930:25
9:47
+0:15
20M
20.00 mi14:23:563:06:449:2013:00
9:34
-0:13
21M
21.00 mi14:33:463:16:349:229:50
9:50
+0:16
35K
21.75 mi14:40:333:23:219:216:47
9:04
-0:46
23M
23.00 mi14:52:133:35:019:2111:40
9:19
+0:15
24M
24.00 mi15:01:173:44:059:209:04
9:04
-0:15
40K
24.85 mi15:08:443:51:329:197:27
8:43
-0:21
25.2M
25.20 mi15:11:453:54:339:183:01
8:45
+0:02
Finish
26.22 mi15:19:374:02:259:157:52
7:43
-1:02

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

7:43 /mi

Average Pace

9:15 /mi

Slowest Pace

11:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

42:27

18% of race

Time at Steady Pace

1:55:45

48% of race

Time at Slower Pace

1:24:13

35% of race

Average Pace: 9:15 /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 mi11:45:3428:229:0828:22
9:08
#20979
10K
6.21 mi12:13:0355:518:5927:29
8:51
#20603
15K
9.32 mi12:40:111:22:598:5427:08
8:44
#20140
20K
12.43 mi13:09:331:52:219:0229:22
9:27
#20540
Half
13.11 mi13:17:252:00:139:107:52
11:32
#21081
25K
15.53 mi13:40:312:23:199:1423:06
9:32
#21031
30K
18.64 mi14:10:562:53:449:1930:25
9:47
#20903
20M
20.00 mi14:23:563:06:449:2013:00
9:34
#20729
21M
21.00 mi14:33:463:16:349:229:50
9:50
#20541
35K
21.75 mi14:40:333:23:219:216:47
9:04
#20454
23M
23.00 mi14:52:133:35:019:2111:40
9:19
#20295
24M
24.00 mi15:01:173:44:059:209:04
9:04
#20193
40K
24.85 mi15:08:443:51:329:197:27
8:43
#20035
25.2M
25.20 mi15:11:453:54:339:183:01
8:45
#19932
Finish
26.22 mi15:19:374:02:259:157:52
7:43
#19679
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi209798359835919167(Top 72%)7202(Top 63%)7202(Top 147%)
10K6.21 mi3.10 mi20603+3768089+2708089+27020173(Top 76%)7803(Top 68%)7803(Top 160%)
15K9.32 mi3.11 mi20140+4637817+2727817+27219167(Top 72%)7202(Top 63%)7202(Top 147%)
20K12.43 mi3.11 mi20540-4008021-2048021-20421397(Top 80%)8463(Top 74%)8463(Top 173%)
Half13.11 mi0.68 mi21081-5418314-2938314-29325519(Top 96%)10795(Top 95%)10795(Top 221%)
25K15.53 mi2.42 mi21031+508284+308284+3020921(Top 79%)8222(Top 72%)8222(Top 168%)
30K18.64 mi3.11 mi20903+1288217+678217+6720423(Top 77%)8006(Top 70%)8006(Top 164%)
20M20.00 mi1.36 mi20729+1748141+768141+7619121(Top 72%)7362(Top 64%)7362(Top 151%)
21M21.00 mi1.00 mi20541+1888054+878054+8717409(Top 65%)6442(Top 56%)6442(Top 132%)
35K21.75 mi0.75 mi20454+878016+388016+3818213(Top 68%)6965(Top 61%)6965(Top 143%)
23M23.00 mi1.25 mi20295+1597936+807936+8017634(Top 66%)6658(Top 58%)6658(Top 136%)
24M24.00 mi1.00 mi20193+1027889+477889+4717563(Top 66%)6664(Top 58%)6664(Top 136%)
40K24.85 mi0.85 mi20035+1587801+887801+8814656(Top 55%)5130(Top 45%)5130(Top 105%)
25.2M25.20 mi0.35 mi19932+1037746+557746+5511158(Top 42%)3316(Top 29%)3316(Top 68%)
Finish26.22 mi1.02 mi19679+2537605+1417605+14110153(Top 38%)2784(Top 24%)2784(Top 57%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21stories
+97ft-345ft

Overall

19167

Females

7202

F18-39

7202

5K→10K

3.1 - 6.2 mi

Top 76%
×5stories
+79ft-138ft

Overall

20173

Females

7803

F18-39

7803

10K→15K

6.2 - 9.3 mi

Top 72%
×3stories
+67ft-78ft

Overall

19167

Females

7202

F18-39

7202

15K→20K

9.3 - 12.4 mi

Top 80%
×5stories
+106ft-86ft

Overall

21397

Females

8463

F18-39

8463

20K→Half

12.4 - 13.1 mi

Top 96%
×2stories
+19ft-37ft

Overall

25519

Females

10795

F18-39

10795

Half→25K

13.1 - 15.5 mi

Top 79%
×4stories
+66ft-88ft

Overall

20921

Females

8222

F18-39

8222

25K→30K

15.5 - 18.6 mi

Top 77%
×9stories
+181ft-148ft

Overall

20423

Females

8006

F18-39

8006

30K→20M

18.6 - 20.0 mi

Top 72%
×5stories
+64ft-50ft

Overall

19121

Females

7362

F18-39

7362

20M→21M

20.0 - 21.0 mi

Top 65%
×8stories
+106ft-24ft

Overall

17409

Females

6442

F18-39

6442

21M→35K

21.0 - 21.8 mi

Top 68%
×7stories
+17ft-86ft

Overall

18213

Females

6965

F18-39

6965

35K→23M

21.8 - 23.0 mi

Top 66%
×5stories
+23ft-63ft

Overall

17634

Females

6658

F18-39

6658

23M→24M

23.0 - 24.0 mi

Top 66%
×6stories
+12ft-82ft

Overall

17563

Females

6664

F18-39

6664

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

14656

Females

5130

F18-39

5130

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11158

Females

3316

F18-39

3316

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2stories
+22ft-21ft

Overall

10153

Females

2784

F18-39

2784

Passing Analysis

Category:
Athletes Passed
2707
Passed By
1407
Net Change
+1300
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20979
5K → 10K539163+376#20979#20603
10K → 15K49936+463#20603#20140
15K → 20K67467-400#20140#20540
20K → Half0541-541#20540#21081
Half → 25K12575+50#21081#21031
25K → 30K21385+128#21031#20903
30K → 20M18612+174#20903#20729
20M → 21M1902+188#20729#20541
21M → 35K9710+87#20541#20454
35K → 23M1678+159#20454#20295
23M → 24M1086+102#20295#20193
24M → 40K1602+158#20193#20035
40K → 25.2M1030+103#20035#19932
25.2M → Finish2530+253#19932#19679
TOTALS27071407+1300
📊

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