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BOSTON MARATHON 2023

Alejandra Casado

Bib: 11280•F

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
27:00
Rank: #18833
Start → 5K
27:00 | 8:41/mi
10K· 6.21 mi
56:24
Rank: #20974 (-2141)
5K → 10K
29:24 | 9:28/mi
15K· 9.32 mi
1:26:17
Rank: #21562 (-588)
10K → 15K
29:53 | 9:37/mi
20K· 12.43 mi
1:57:23
Rank: #21933 (-371)
15K → 20K
31:06 | 10:01/mi
Half· 13.11 mi
2:03:53
Rank: #21941 (-8)
20K → Half
6:30 | 9:32/mi
25K· 15.53 mi
2:29:03
Rank: #22180 (-239)
Half → 25K
25:10 | 10:23/mi
30K· 18.64 mi
3:01:23
Rank: #22160 (+20)
25K → 30K
32:20 | 10:24/mi
20M
3:19:05
Rank: #22532 (-372)
30K → 20M
17:42 | 13:01/mi
21M
3:31:56
Rank: #22644 (-112)
20M → 21M
12:51 | 12:51/mi
35K· 21.75 mi
3:39:35
Rank: #22603 (+41)
21M → 35K
7:39 | 10:14/mi
23M
3:52:48
Rank: #22527 (+76)
35K → 23M
13:13 | 10:33/mi
24M
4:03:19
Rank: #22513 (+14)
23M → 24M
10:31 | 10:31/mi
40K· 24.85 mi
4:12:25
Rank: #22471 (+42)
24M → 40K
9:06 | 10:39/mi
25.2M
4:16:47
Rank: #22494 (-23)
40K → 25.2M
4:22 | 12:40/mi
Finish· 26.22 mi
4:29:24
Rank: #22685 (-191)
25.2M → Finish
12:37 | 12:23/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:03:53
Pace9:27 /mi
2nd Half
Distance13.11 mi
Time2:25:31
Pace11:06 /mi
📊Positive Split: 17.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:0627:008:4127:00
8:41
-
10K
6.21 mi11:23:3056:249:0529:24
9:28
+0:47
15K
9.32 mi11:53:231:26:179:1529:53
9:37
+0:09
20K
12.43 mi12:24:291:57:239:2731:06
10:01
+0:24
Half
13.11 mi12:30:592:03:539:276:30
9:32
-0:29
25K
15.53 mi12:56:092:29:039:3625:10
10:23
+0:51
30K
18.64 mi13:28:293:01:239:4432:20
10:24
+0:01
20M
20.00 mi13:46:113:19:059:5717:42
13:01
+2:37
21M
21.00 mi13:59:023:31:5610:0612:51
12:51
-0:10
35K
21.75 mi14:06:413:39:3510:067:39
10:14
-2:37
23M
23.00 mi14:19:543:52:4810:0713:13
10:33
+0:19
24M
24.00 mi14:30:254:03:1910:0810:31
10:31
-0:02
40K
24.85 mi14:39:314:12:2510:099:06
10:39
+0:08
25.2M
25.20 mi14:43:534:16:4710:114:22
12:40
+2:01
Finish
26.22 mi14:56:304:29:2410:1712:37
12:23
-0:17

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

8:41 /mi

Average Pace

10:17 /mi

Slowest Pace

13:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:32:47

34% of race

Time at Steady Pace

2:09:05

48% of race

Time at Slower Pace

47:32

18% of race

Average Pace: 10:16 /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 mi10:54:0627:008:4127:00
8:41
#18833
10K
6.21 mi11:23:3056:249:0529:24
9:28
#20974
15K
9.32 mi11:53:231:26:179:1529:53
9:37
#21562
20K
12.43 mi12:24:291:57:239:2731:06
10:01
#21933
Half
13.11 mi12:30:592:03:539:276:30
9:32
#21941
25K
15.53 mi12:56:092:29:039:3625:10
10:23
#22180
30K
18.64 mi13:28:293:01:239:4432:20
10:24
#22160
20M
20.00 mi13:46:113:19:059:5717:42
13:01
#22532
21M
21.00 mi13:59:023:31:5610:0612:51
12:51
#22644
35K
21.75 mi14:06:413:39:3510:067:39
10:14
#22603
23M
23.00 mi14:19:543:52:4810:0713:13
10:33
#22527
24M
24.00 mi14:30:254:03:1910:0810:31
10:31
#22513
40K
24.85 mi14:39:314:12:2510:099:06
10:39
#22471
25.2M
25.20 mi14:43:534:16:4710:114:22
12:40
#22494
Finish
26.22 mi14:56:304:29:2410:1712:37
12:23
#22685
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi188337101710122575(Top 85%)9114(Top 80%)9114(Top 187%)
10K6.21 mi3.10 mi20974-21418312-12118312-121122417(Top 84%)9042(Top 79%)9042(Top 185%)
15K9.32 mi3.11 mi21562-5888594-2828594-28222575(Top 85%)9114(Top 80%)9114(Top 187%)
20K12.43 mi3.11 mi21933-3718796-2028796-20222944(Top 86%)9329(Top 82%)9329(Top 191%)
Half13.11 mi0.68 mi21941-88797-18797-122224(Top 83%)8911(Top 78%)8911(Top 182%)
25K15.53 mi2.42 mi22180-2398930-1338930-13322976(Top 86%)9376(Top 82%)9376(Top 192%)
30K18.64 mi3.11 mi22160+208925+58925+522020(Top 83%)8919(Top 78%)8919(Top 183%)
20M20.00 mi1.36 mi22532-3729155-2309155-23025204(Top 95%)10703(Top 94%)10703(Top 219%)
21M21.00 mi1.00 mi22644-1129222-679222-6723911(Top 90%)10035(Top 88%)10035(Top 205%)
35K21.75 mi0.75 mi22603+419209+139209+1321853(Top 82%)8969(Top 79%)8969(Top 184%)
23M23.00 mi1.25 mi22527+769172+379172+3721459(Top 81%)8768(Top 77%)8768(Top 180%)
24M24.00 mi1.00 mi22513+149171+19171+122080(Top 83%)9142(Top 80%)9142(Top 187%)
40K24.85 mi0.85 mi22471+429156+159156+1521585(Top 81%)8936(Top 78%)8936(Top 183%)
25.2M25.20 mi0.35 mi22494-239171-159171-1523538(Top 88%)9944(Top 87%)9944(Top 204%)
Finish26.22 mi1.02 mi22685-1919283-1129283-11225595(Top 96%)10971(Top 96%)10971(Top 225%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21stories
+97ft-345ft

Overall

22575

Females

9114

F18-39

9114

5K→10K

3.1 - 6.2 mi

Top 84%
×5stories
+79ft-138ft

Overall

22417

Females

9042

F18-39

9042

10K→15K

6.2 - 9.3 mi

Top 85%
×3stories
+67ft-78ft

Overall

22575

Females

9114

F18-39

9114

15K→20K

9.3 - 12.4 mi

Top 86%
×5stories
+106ft-86ft

Overall

22944

Females

9329

F18-39

9329

20K→Half

12.4 - 13.1 mi

Top 83%
×2stories
+19ft-37ft

Overall

22224

Females

8911

F18-39

8911

Half→25K

13.1 - 15.5 mi

Top 86%
×4stories
+66ft-88ft

Overall

22976

Females

9376

F18-39

9376

25K→30K

15.5 - 18.6 mi

Top 83%
×9stories
+181ft-148ft

Overall

22020

Females

8919

F18-39

8919

30K→20M

18.6 - 20.0 mi

Top 95%
×5stories
+64ft-50ft

Overall

25204

Females

10703

F18-39

10703

20M→21M

20.0 - 21.0 mi

Top 90%
×8stories
+106ft-24ft

Overall

23911

Females

10035

F18-39

10035

21M→35K

21.0 - 21.8 mi

Top 82%
×7stories
+17ft-86ft

Overall

21853

Females

8969

F18-39

8969

35K→23M

21.8 - 23.0 mi

Top 81%
×5stories
+23ft-63ft

Overall

21459

Females

8768

F18-39

8768

23M→24M

23.0 - 24.0 mi

Top 83%
×6stories
+12ft-82ft

Overall

22080

Females

9142

F18-39

9142

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

21585

Females

8936

F18-39

8936

40K→25.2M

24.9 - 25.2 mi

Top 88%
×1story
+13ft-16ft

Overall

23538

Females

9944

F18-39

9944

25.2M→Finish

25.2 - 26.2 mi

Top 96%
×2stories
+22ft-21ft

Overall

25595

Females

10971

F18-39

10971

Passing Analysis

Category:
Athletes Passed
569
Passed By
4421
Net Change
-3852
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18833
5K → 10K82149-2141#18833#20974
10K → 15K28616-588#20974#21562
15K → 20K37408-371#21562#21933
20K → Half2129-8#21933#21941
Half → 25K39278-239#21941#22180
25K → 30K140120+20#22180#22160
30K → 20M8380-372#22160#22532
20M → 21M22134-112#22532#22644
21M → 35K6019+41#22644#22603
35K → 23M9822+76#22603#22527
23M → 24M4026+14#22527#22513
24M → 40K497+42#22513#22471
40K → 25.2M1134-23#22471#22494
25.2M → Finish8199-191#22494#22685
TOTALS5694421-3852
📊

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