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BOSTON MARATHON 2024

Schirlei Casas

Bib: 12355•F

0:00
0:00
/ mi
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Top 40%
Division (F18-39)
#0 / 4660
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:39
Rank: #16385
Start → 5K
25:39 | 8:15/mi
10K· 6.21 mi
49:52
Rank: #14602 (+1783)
5K → 10K
24:13 | 7:48/mi
15K· 9.32 mi
1:14:19
Rank: #13880 (+722)
10K → 15K
24:27 | 7:52/mi
20K· 12.43 mi
1:39:08
Rank: #13255 (+625)
15K → 20K
24:49 | 7:59/mi
Half· 13.11 mi
1:44:28
Rank: #13116 (+139)
20K → Half
5:20 | 7:49/mi
25K· 15.53 mi
2:04:29
Rank: #12817 (+299)
Half → 25K
20:01 | 8:15/mi
30K· 18.64 mi
2:33:44
Rank: #13267 (-450)
25K → 30K
29:15 | 9:25/mi
20M
2:45:51
Rank: #13079 (+188)
30K → 20M
12:07 | 8:55/mi
21M
2:55:55
Rank: #13068 (+11)
20M → 21M
10:04 | 10:04/mi
35K· 21.75 mi
3:03:13
Rank: #13222 (-154)
21M → 35K
7:18 | 9:45/mi
23M
3:15:01
Rank: #13214 (+8)
35K → 23M
11:48 | 9:25/mi
24M
3:24:12
Rank: #13186 (+28)
23M → 24M
9:11 | 9:11/mi
40K· 24.85 mi
3:32:14
Rank: #13139 (+47)
24M → 40K
8:02 | 9:24/mi
25.2M
3:35:58
Rank: #13149 (-10)
40K → 25.2M
3:44 | 10:50/mi
Finish· 26.22 mi
3:44:53
Rank: #13124 (+25)
25.2M → Finish
8:55 | 8:45/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:28
Pace7:58 /mi
2nd Half
Distance13.11 mi
Time2:00:25
Pace9:11 /mi
📊Positive Split: 15.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:2125:398:1525:39
8:15
-
10K
6.21 mi11:18:3449:528:0224:13
7:48
-0:27
15K
9.32 mi11:43:011:14:197:5824:27
7:52
+0:04
20K
12.43 mi12:07:501:39:087:5924:49
7:59
+0:07
Half
13.11 mi12:13:101:44:287:585:20
7:49
-0:10
25K
15.53 mi12:33:112:04:298:0120:01
8:15
+0:26
30K
18.64 mi13:02:262:33:448:1529:15
9:25
+1:10
20M
20.00 mi13:14:332:45:518:1812:07
8:55
-0:30
21M
21.00 mi13:24:372:55:558:2310:04
10:04
+1:09
35K
21.75 mi13:31:553:03:138:257:18
9:45
-0:19
23M
23.00 mi13:43:433:15:018:2911:48
9:25
-0:20
24M
24.00 mi13:52:543:24:128:319:11
9:11
-0:14
40K
24.85 mi14:00:563:32:148:328:02
9:24
+0:13
25.2M
25.20 mi14:04:403:35:588:343:44
10:50
+1:26
Finish
26.22 mi14:13:353:44:538:358:55
8:45
-2:05

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

7:48 /mi

Average Pace

8:35 /mi

Slowest Pace

10:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:04:29

55% of race

Time at Steady Pace

30:13

13% of race

Time at Slower Pace

1:10:11

31% of race

Average Pace: 8:35 /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 mi10:54:2125:398:1525:39
8:15
#16385
10K
6.21 mi11:18:3449:528:0224:13
7:48
#14602
15K
9.32 mi11:43:011:14:197:5824:27
7:52
#13880
20K
12.43 mi12:07:501:39:087:5924:49
7:59
#13255
Half
13.11 mi12:13:101:44:287:585:20
7:49
#13116
25K
15.53 mi12:33:112:04:298:0120:01
8:15
#12817
30K
18.64 mi13:02:262:33:448:1529:15
9:25
#13267
20M
20.00 mi13:14:332:45:518:1812:07
8:55
#13079
21M
21.00 mi13:24:372:55:558:2310:04
10:04
#13068
35K
21.75 mi13:31:553:03:138:257:18
9:45
#13222
23M
23.00 mi13:43:433:15:018:2911:48
9:25
#13214
24M
24.00 mi13:52:543:24:128:319:11
9:11
#13186
40K
24.85 mi14:00:563:32:148:328:02
9:24
#13139
25.2M
25.20 mi14:04:403:35:588:343:44
10:50
#13149
Finish
26.22 mi14:13:353:44:538:358:55
8:45
#13124
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi163855791579112473(Top 49%)3498(Top 32%)3498(Top 75%)
10K6.21 mi3.10 mi14602+17834693+10984693+109812615(Top 49%)3545(Top 32%)3545(Top 76%)
15K9.32 mi3.11 mi13880+7224275+4184275+41812473(Top 49%)3498(Top 32%)3498(Top 75%)
20K12.43 mi3.11 mi13255+6253934+3413934+34111751(Top 46%)3189(Top 29%)3189(Top 68%)
Half13.11 mi0.68 mi13116+1393861+733861+7311549(Top 45%)3117(Top 29%)3117(Top 67%)
25K15.53 mi2.42 mi12817+2993718+1433718+14311734(Top 46%)3363(Top 31%)3363(Top 72%)
30K18.64 mi3.11 mi13267-4504065-3474065-34715100(Top 59%)5467(Top 50%)5467(Top 117%)
20M20.00 mi1.36 mi13079+1884029+364029+3611712(Top 46%)3869(Top 35%)3869(Top 83%)
21M21.00 mi1.00 mi13068+114078-494078-4913250(Top 52%)4915(Top 45%)4915(Top 105%)
35K21.75 mi0.75 mi13222-1544197-1194197-11916402(Top 64%)6556(Top 60%)6556(Top 141%)
23M23.00 mi1.25 mi13214+84255-584255-5813190(Top 52%)5000(Top 46%)5000(Top 107%)
24M24.00 mi1.00 mi13186+284282-274282-2713043(Top 51%)4948(Top 45%)4948(Top 106%)
40K24.85 mi0.85 mi13139+474294-124294-1212711(Top 50%)4898(Top 45%)4898(Top 105%)
25.2M25.20 mi0.35 mi13149-104317-234317-2313926(Top 55%)5522(Top 51%)5522(Top 118%)
Finish26.22 mi1.02 mi13124+254344-274344-2712921(Top 51%)4924(Top 45%)4924(Top 106%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21stories
+97ft-345ft

Overall

12473

Females

3498

F18-39

3498

5K→10K

3.1 - 6.2 mi

Top 49%
×5stories
+79ft-138ft

Overall

12615

Females

3545

F18-39

3545

10K→15K

6.2 - 9.3 mi

Top 49%
×3stories
+67ft-78ft

Overall

12473

Females

3498

F18-39

3498

15K→20K

9.3 - 12.4 mi

Top 46%
×5stories
+106ft-86ft

Overall

11751

Females

3189

F18-39

3189

20K→Half

12.4 - 13.1 mi

Top 45%
×2stories
+19ft-37ft

Overall

11549

Females

3117

F18-39

3117

Half→25K

13.1 - 15.5 mi

Top 46%
×4stories
+66ft-88ft

Overall

11734

Females

3363

F18-39

3363

25K→30K

15.5 - 18.6 mi

Top 59%
×9stories
+181ft-148ft

Overall

15100

Females

5467

F18-39

5467

30K→20M

18.6 - 20.0 mi

Top 46%
×5stories
+64ft-50ft

Overall

11712

Females

3869

F18-39

3869

20M→21M

20.0 - 21.0 mi

Top 52%
×8stories
+106ft-24ft

Overall

13250

Females

4915

F18-39

4915

21M→35K

21.0 - 21.8 mi

Top 64%
×7stories
+17ft-86ft

Overall

16402

Females

6556

F18-39

6556

35K→23M

21.8 - 23.0 mi

Top 52%
×5stories
+23ft-63ft

Overall

13190

Females

5000

F18-39

5000

23M→24M

23.0 - 24.0 mi

Top 51%
×6stories
+12ft-82ft

Overall

13043

Females

4948

F18-39

4948

24M→40K

24.0 - 24.9 mi

Top 50%
×1story
+6ft-20ft

Overall

12711

Females

4898

F18-39

4898

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

13926

Females

5522

F18-39

5522

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2stories
+22ft-21ft

Overall

12921

Females

4924

F18-39

4924

Passing Analysis

Category:
Athletes Passed
4777
Passed By
1516
Net Change
+3261
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16385
5K → 10K179411+1783#16385#14602
10K → 15K73816+722#14602#13880
15K → 20K64217+625#13880#13255
20K → Half1445+139#13255#13116
Half → 25K39293+299#13116#12817
25K → 30K145595-450#12817#13267
30K → 20M24658+188#13267#13079
20M → 21M132121+11#13079#13068
21M → 35K48202-154#13068#13222
35K → 23M143135+8#13222#13214
23M → 24M11486+28#13214#13186
24M → 40K10861+47#13186#13139
40K → 25.2M3747-10#13139#13149
25.2M → Finish9469+25#13149#13124
TOTALS47771516+3261
📊

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