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BOSTON MARATHON 2023

Cassy Crouse

Bib: 16474•F

MD

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 37%
Gender (Female)
#0 / 11423
Top 18%
Masters (Masters Women)
#0 / 6539
Top 7%
Division (F40-44)
#0 / 1878
Top 16%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:52
Rank: #11302
Start → 5K
23:52 | 7:41/mi
10K· 6.21 mi
47:19
Rank: #11057 (+245)
5K → 10K
23:27 | 7:33/mi
15K· 9.32 mi
1:11:05
Rank: #11165 (-108)
10K → 15K
23:46 | 7:39/mi
20K· 12.43 mi
1:35:24
Rank: #11320 (-155)
15K → 20K
24:19 | 7:50/mi
Half· 13.11 mi
1:40:36
Rank: #11312 (+8)
20K → Half
5:12 | 7:37/mi
25K· 15.53 mi
1:59:34
Rank: #11274 (+38)
Half → 25K
18:58 | 7:49/mi
30K· 18.64 mi
2:24:15
Rank: #11074 (+200)
25K → 30K
24:41 | 7:57/mi
20M
2:35:00
Rank: #10928 (+146)
30K → 20M
10:45 | 7:55/mi
21M
2:43:05
Rank: #10745 (+183)
20M → 21M
8:05 | 8:05/mi
35K· 21.75 mi
2:48:39
Rank: #10611 (+134)
21M → 35K
5:34 | 7:26/mi
23M
2:58:17
Rank: #10410 (+201)
35K → 23M
9:38 | 7:42/mi
24M
3:05:44
Rank: #10254 (+156)
23M → 24M
7:27 | 7:27/mi
40K· 24.85 mi
3:12:03
Rank: #10051 (+203)
24M → 40K
6:19 | 7:23/mi
25.2M
3:14:49
Rank: #9970 (+81)
40K → 25.2M
2:46 | 8:01/mi
Finish· 26.22 mi
3:22:15
Rank: #9813 (+157)
25.2M → Finish
7:26 | 7:18/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:36
Pace7:40 /mi
2nd Half
Distance13.11 mi
Time1:41:39
Pace7:45 /mi
📊Positive Split: 1.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:1523:527:4123:52
7:41
-
10K
6.21 mi11:37:4247:197:3723:27
7:33
-0:08
15K
9.32 mi12:01:281:11:057:3823:46
7:39
+0:06
20K
12.43 mi12:25:471:35:247:4124:19
7:50
+0:11
Half
13.11 mi12:30:591:40:367:405:12
7:37
-0:13
25K
15.53 mi12:49:571:59:347:4218:58
7:49
+0:12
30K
18.64 mi13:14:382:24:157:4424:41
7:57
+0:08
20M
20.00 mi13:25:232:35:007:4510:45
7:55
-0:02
21M
21.00 mi13:33:282:43:057:468:05
8:05
+0:10
35K
21.75 mi13:39:022:48:397:455:34
7:26
-0:39
23M
23.00 mi13:48:402:58:177:459:38
7:42
+0:16
24M
24.00 mi13:56:073:05:447:447:27
7:27
-0:15
40K
24.85 mi14:02:263:12:037:446:19
7:23
-0:04
25.2M
25.20 mi14:05:123:14:497:442:46
8:01
+0:38
Finish
26.22 mi14:12:383:22:157:437:26
7:18
-0:43

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

7:18 /mi

Average Pace

7:43 /mi

Slowest Pace

8:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:14:10

96% of race

Time at Steady Pace

8:05

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:43 /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 mi11:14:1523:527:4123:52
7:41
#11302
10K
6.21 mi11:37:4247:197:3723:27
7:33
#11057
15K
9.32 mi12:01:281:11:057:3823:46
7:39
#11165
20K
12.43 mi12:25:471:35:247:4124:19
7:50
#11320
Half
13.11 mi12:30:591:40:367:405:12
7:37
#11312
25K
15.53 mi12:49:571:59:347:4218:58
7:49
#11274
30K
18.64 mi13:14:382:24:157:4424:41
7:57
#11074
20M
20.00 mi13:25:232:35:007:4510:45
7:55
#10928
21M
21.00 mi13:33:282:43:057:468:05
8:05
#10745
35K
21.75 mi13:39:022:48:397:455:34
7:26
#10611
23M
23.00 mi13:48:402:58:177:459:38
7:42
#10410
24M
24.00 mi13:56:073:05:447:447:27
7:27
#10254
40K
24.85 mi14:02:263:12:037:446:19
7:23
#10051
25.2M
25.20 mi14:05:123:14:497:442:46
8:01
#9970
Finish
26.22 mi14:12:383:22:157:437:26
7:18
#9813
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi113022491249111418(Top 43%)2575(Top 23%)2575(Top 137%)
10K6.21 mi3.10 mi11057+2452356+1352356+13510866(Top 41%)2240(Top 20%)2240(Top 119%)
15K9.32 mi3.11 mi11165-1082421-652421-6511418(Top 43%)2575(Top 23%)2575(Top 137%)
20K12.43 mi3.11 mi11320-1552512-912512-9111958(Top 45%)2941(Top 26%)2941(Top 157%)
Half13.11 mi0.68 mi11312+82508+42508+411242(Top 42%)2473(Top 22%)2473(Top 132%)
25K15.53 mi2.42 mi11274+382516-82516-811291(Top 42%)2647(Top 23%)2647(Top 141%)
30K18.64 mi3.11 mi11074+2002445+712445+7110477(Top 39%)2375(Top 21%)2375(Top 126%)
20M20.00 mi1.36 mi10928+1462394+512394+519652(Top 36%)2087(Top 18%)2087(Top 111%)
21M21.00 mi1.00 mi10745+1832322+722322+727942(Top 30%)1501(Top 13%)1501(Top 80%)
35K21.75 mi0.75 mi10611+1342278+442278+448160(Top 31%)1578(Top 14%)1578(Top 84%)
23M23.00 mi1.25 mi10410+2012201+772201+777717(Top 29%)1465(Top 13%)1465(Top 78%)
24M24.00 mi1.00 mi10254+1562151+502151+507407(Top 28%)1454(Top 13%)1454(Top 77%)
40K24.85 mi0.85 mi10051+2032084+672084+676058(Top 23%)1016(Top 9%)1016(Top 54%)
25.2M25.20 mi0.35 mi9970+812065+192065+196754(Top 25%)1340(Top 12%)1340(Top 71%)
Finish26.22 mi1.02 mi9813+1572014+512014+517139(Top 27%)1486(Top 13%)1486(Top 79%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21stories
+97ft-345ft

Overall

11418

Females

2575

F40-44

2575

5K→10K

3.1 - 6.2 mi

Top 41%
×5stories
+79ft-138ft

Overall

10866

Females

2240

F40-44

2240

10K→15K

6.2 - 9.3 mi

Top 43%
×3stories
+67ft-78ft

Overall

11418

Females

2575

F40-44

2575

15K→20K

9.3 - 12.4 mi

Top 45%
×5stories
+106ft-86ft

Overall

11958

Females

2941

F40-44

2941

20K→Half

12.4 - 13.1 mi

Top 42%
×2stories
+19ft-37ft

Overall

11242

Females

2473

F40-44

2473

Half→25K

13.1 - 15.5 mi

Top 42%
×4stories
+66ft-88ft

Overall

11291

Females

2647

F40-44

2647

25K→30K

15.5 - 18.6 mi

Top 39%
×9stories
+181ft-148ft

Overall

10477

Females

2375

F40-44

2375

30K→20M

18.6 - 20.0 mi

Top 36%
×5stories
+64ft-50ft

Overall

9652

Females

2087

F40-44

2087

20M→21M

20.0 - 21.0 mi

Top 30%
×8stories
+106ft-24ft

Overall

7942

Females

1501

F40-44

1501

21M→35K

21.0 - 21.8 mi

Top 31%
×7stories
+17ft-86ft

Overall

8160

Females

1578

F40-44

1578

35K→23M

21.8 - 23.0 mi

Top 29%
×5stories
+23ft-63ft

Overall

7717

Females

1465

F40-44

1465

23M→24M

23.0 - 24.0 mi

Top 28%
×6stories
+12ft-82ft

Overall

7407

Females

1454

F40-44

1454

24M→40K

24.0 - 24.9 mi

Top 23%
×1story
+6ft-20ft

Overall

6058

Females

1016

F40-44

1016

40K→25.2M

24.9 - 25.2 mi

Top 25%
×1story
+13ft-16ft

Overall

6754

Females

1340

F40-44

1340

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2stories
+22ft-21ft

Overall

7139

Females

1486

F40-44

1486

Passing Analysis

Category:
Athletes Passed
2480*
Passed By
991
Net Change
+1489
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11302
5K → 10K441196+245#11302#11057
10K → 15K144252-108#11057#11165
15K → 20K108263-155#11165#11320
20K → Half3123+8#11320#11312
Half → 25K13395+38#11312#11274
25K → 30K27878+200#11274#11074
30K → 20M174*28+146#11074#10928
20M → 21M1907+183#10928#10745
21M → 35K1417+134#10745#10611
35K → 23M21312+201#10611#10410
23M → 24M1648+156#10410#10254
24M → 40K2063+203#10254#10051
40K → 25.2M86*5+81#10051#9970
25.2M → Finish171*14+157#9970#9813
TOTALS2480*991+1489

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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