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BOSTON MARATHON 2023

Cassandra Leal

Bib: 29552•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
31:54
Rank: #24142
Start → 5K
31:54 | 10:16/mi
10K· 6.21 mi
1:03:25
Rank: #24075 (+67)
5K → 10K
31:31 | 10:09/mi
15K· 9.32 mi
1:42:16
Rank: #25407 (-1332)
10K → 15K
38:51 | 12:30/mi
20K· 12.43 mi
2:23:18
Rank: #25825 (-418)
15K → 20K
41:02 | 13:12/mi
Half· 13.11 mi
2:31:45
Rank: #25851 (-26)
20K → Half
8:27 | 12:23/mi
25K· 15.53 mi
3:03:59
Rank: #25891 (-40)
Half → 25K
32:14 | 13:18/mi
30K· 18.64 mi
3:50:30
Rank: #26060 (-169)
25K → 30K
46:31 | 14:58/mi
20M
4:09:52
Rank: #26055 (+5)
30K → 20M
19:22 | 14:15/mi
21M
4:25:29
Rank: #26067 (-12)
20M → 21M
15:37 | 15:37/mi
35K· 21.75 mi
4:34:24
Rank: #26029 (+38)
21M → 35K
8:55 | 11:55/mi
23M
4:53:08
Rank: #26070 (-41)
35K → 23M
18:44 | 14:58/mi
24M
5:07:17
Rank: #26092 (-22)
23M → 24M
14:09 | 14:09/mi
40K· 24.85 mi
5:19:26
Rank: #26091 (+1)
24M → 40K
12:09 | 14:13/mi
25.2M
5:25:15
Rank: #26098 (-7)
40K → 25.2M
5:49 | 16:52/mi
Finish· 26.22 mi
5:36:58
Rank: #26061 (+37)
25.2M → Finish
11:43 | 11:30/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:31:45
Pace11:35 /mi
2nd Half
Distance13.11 mi
Time3:05:13
Pace14:08 /mi
📊Positive Split: 22.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:4531:5410:1631:54
10:16
-
10K
6.21 mi12:21:161:03:2510:1231:31
10:09
-0:07
15K
9.32 mi13:00:071:42:1610:5838:51
12:30
+2:21
20K
12.43 mi13:41:092:23:1811:3241:02
13:12
+0:42
Half
13.11 mi13:49:362:31:4511:358:27
12:23
-0:49
25K
15.53 mi14:21:503:03:5911:5132:14
13:18
+0:55
30K
18.64 mi15:08:213:50:3012:2246:31
14:58
+1:40
20M
20.00 mi15:27:434:09:5212:3019:22
14:15
-0:43
21M
21.00 mi15:43:204:25:2912:3915:37
15:37
+1:22
35K
21.75 mi15:52:154:34:2412:378:55
11:55
-3:42
23M
23.00 mi16:10:594:53:0812:4518:44
14:58
+3:03
24M
24.00 mi16:25:085:07:1712:4814:09
14:09
-0:49
40K
24.85 mi16:37:175:19:2612:5112:09
14:13
+0:04
25.2M
25.20 mi16:43:065:25:1512:545:49
16:52
+2:39
Finish
26.22 mi16:54:495:36:5812:5211:43
11:30
-5:22

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

10:09 /mi

Average Pace

12:52 /mi

Slowest Pace

16:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:24:03

25% of race

Time at Steady Pace

2:26:52

44% of race

Time at Slower Pace

1:46:03

31% of race

Average Pace: 12:51 /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 mi11:49:4531:5410:1631:54
10:16
#24142
10K
6.21 mi12:21:161:03:2510:1231:31
10:09
#24075
15K
9.32 mi13:00:071:42:1610:5838:51
12:30
#25407
20K
12.43 mi13:41:092:23:1811:3241:02
13:12
#25825
Half
13.11 mi13:49:362:31:4511:358:27
12:23
#25851
25K
15.53 mi14:21:503:03:5911:5132:14
13:18
#25891
30K
18.64 mi15:08:213:50:3012:2246:31
14:58
#26060
20M
20.00 mi15:27:434:09:5212:3019:22
14:15
#26055
21M
21.00 mi15:43:204:25:2912:3915:37
15:37
#26067
35K
21.75 mi15:52:154:34:2412:378:55
11:55
#26029
23M
23.00 mi16:10:594:53:0812:4518:44
14:58
#26070
24M
24.00 mi16:25:085:07:1712:4814:09
14:09
#26092
40K
24.85 mi16:37:175:19:2612:5112:09
14:13
#26091
25.2M
25.20 mi16:43:065:25:1512:545:49
16:52
#26098
Finish
26.22 mi16:54:495:36:5812:5211:43
11:30
#26061
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi241429960996026319(Top 99%)11247(Top 98%)11247(Top 230%)
10K6.21 mi3.10 mi24075+679937+239937+2324008(Top 90%)9891(Top 87%)9891(Top 203%)
15K9.32 mi3.11 mi25407-133210679-74210679-74226319(Top 99%)11247(Top 98%)11247(Top 230%)
20K12.43 mi3.11 mi25825-41810938-25910938-25926327(Top 99%)11255(Top 99%)11255(Top 230%)
Half13.11 mi0.68 mi25851-2610952-1410952-1426102(Top 98%)11122(Top 97%)11122(Top 228%)
25K15.53 mi2.42 mi25891-4010983-3110983-3126024(Top 98%)11091(Top 97%)11091(Top 227%)
30K18.64 mi3.11 mi26060-16911092-10911092-10926414(Top 99%)11321(Top 99%)11321(Top 232%)
20M20.00 mi1.36 mi26055+511090+211090+225979(Top 98%)11115(Top 97%)11115(Top 228%)
21M21.00 mi1.00 mi26067-1211104-1411104-1426076(Top 98%)11156(Top 98%)11156(Top 228%)
35K21.75 mi0.75 mi26029+3811077+2711077+2724621(Top 92%)10468(Top 92%)10468(Top 214%)
23M23.00 mi1.25 mi26070-4111110-3311110-3326284(Top 99%)11276(Top 99%)11276(Top 231%)
24M24.00 mi1.00 mi26092-2211125-1511125-1526131(Top 98%)11223(Top 98%)11223(Top 230%)
40K24.85 mi0.85 mi26091+111129-411129-425804(Top 97%)11075(Top 97%)11075(Top 227%)
25.2M25.20 mi0.35 mi26098-711134-511134-526346(Top 99%)11324(Top 99%)11324(Top 232%)
Finish26.22 mi1.02 mi26061+3711112+2211112+2224692(Top 93%)10505(Top 92%)10505(Top 215%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 99%
×21stories
+97ft-345ft

Overall

26319

Females

11247

F18-39

11247

5K→10K

3.1 - 6.2 mi

Top 90%
×5stories
+79ft-138ft

Overall

24008

Females

9891

F18-39

9891

10K→15K

6.2 - 9.3 mi

Top 99%
×3stories
+67ft-78ft

Overall

26319

Females

11247

F18-39

11247

15K→20K

9.3 - 12.4 mi

Top 99%
×5stories
+106ft-86ft

Overall

26327

Females

11255

F18-39

11255

20K→Half

12.4 - 13.1 mi

Top 98%
×2stories
+19ft-37ft

Overall

26102

Females

11122

F18-39

11122

Half→25K

13.1 - 15.5 mi

Top 98%
×4stories
+66ft-88ft

Overall

26024

Females

11091

F18-39

11091

25K→30K

15.5 - 18.6 mi

Top 99%
×9stories
+181ft-148ft

Overall

26414

Females

11321

F18-39

11321

30K→20M

18.6 - 20.0 mi

Top 98%
×5stories
+64ft-50ft

Overall

25979

Females

11115

F18-39

11115

20M→21M

20.0 - 21.0 mi

Top 98%
×8stories
+106ft-24ft

Overall

26076

Females

11156

F18-39

11156

21M→35K

21.0 - 21.8 mi

Top 92%
×7stories
+17ft-86ft

Overall

24621

Females

10468

F18-39

10468

35K→23M

21.8 - 23.0 mi

Top 99%
×5stories
+23ft-63ft

Overall

26284

Females

11276

F18-39

11276

23M→24M

23.0 - 24.0 mi

Top 98%
×6stories
+12ft-82ft

Overall

26131

Females

11223

F18-39

11223

24M→40K

24.0 - 24.9 mi

Top 97%
×1story
+6ft-20ft

Overall

25804

Females

11075

F18-39

11075

40K→25.2M

24.9 - 25.2 mi

Top 99%
×1story
+13ft-16ft

Overall

26346

Females

11324

F18-39

11324

25.2M→Finish

25.2 - 26.2 mi

Top 93%
×2stories
+22ft-21ft

Overall

24692

Females

10505

F18-39

10505

Passing Analysis

Category:
Athletes Passed
432
Passed By
2351
Net Change
-1919
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24142
5K → 10K240173+67#24142#24075
10K → 15K21334-1332#24075#25407
15K → 20K13431-418#25407#25825
20K → Half430-26#25825#25851
Half → 25K2666-40#25851#25891
25K → 30K7176-169#25891#26060
30K → 20M1914+5#26060#26055
20M → 21M1628-12#26055#26067
21M → 35K391+38#26067#26029
35K → 23M546-41#26029#26070
23M → 24M426-22#26070#26092
24M → 40K1312+1#26092#26091
40K → 25.2M512-7#26091#26098
25.2M → Finish392+37#26098#26061
TOTALS4322351-1919
📊

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