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BOSTON MARATHON 2023

Estelle Casalotto

Bib: 31411•F

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 46%
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
26:45
Rank: #18290
Start → 5K
26:45 | 8:37/mi
10K· 6.21 mi
52:38
Rank: #17722 (+568)
5K → 10K
25:53 | 8:20/mi
15K· 9.32 mi
1:18:18
Rank: #17201 (+521)
10K → 15K
25:40 | 8:16/mi
20K· 12.43 mi
1:44:08
Rank: #16793 (+408)
15K → 20K
25:50 | 8:19/mi
Half· 13.11 mi
1:49:45
Rank: #16774 (+19)
20K → Half
5:37 | 8:14/mi
25K· 15.53 mi
2:10:04
Rank: #16560 (+214)
Half → 25K
20:19 | 8:23/mi
30K· 18.64 mi
2:36:51
Rank: #16242 (+318)
25K → 30K
26:47 | 8:37/mi
20M
2:48:45
Rank: #16147 (+95)
30K → 20M
11:54 | 8:45/mi
21M
2:57:56
Rank: #16012 (+135)
20M → 21M
9:11 | 9:11/mi
35K· 21.75 mi
3:04:20
Rank: #15985 (+27)
21M → 35K
6:24 | 8:33/mi
23M
3:15:18
Rank: #15895 (+90)
35K → 23M
10:58 | 8:46/mi
24M
3:23:46
Rank: #15807 (+88)
23M → 24M
8:28 | 8:28/mi
40K· 24.85 mi
3:31:05
Rank: #15721 (+86)
24M → 40K
7:19 | 8:33/mi
25.2M
3:34:09
Rank: #15664 (+57)
40K → 25.2M
3:04 | 8:54/mi
Finish· 26.22 mi
3:42:31
Rank: #15570 (+94)
25.2M → Finish
8:22 | 8:13/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:45
Pace8:22 /mi
2nd Half
Distance13.11 mi
Time1:52:46
Pace8:36 /mi
📊Positive Split: 2.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:4926:458:3726:45
8:37
-
10K
6.21 mi12:13:4252:388:2825:53
8:20
-0:17
15K
9.32 mi12:39:221:18:188:2425:40
8:16
-0:04
20K
12.43 mi13:05:121:44:088:2325:50
8:19
+0:03
Half
13.11 mi13:10:491:49:458:225:37
8:14
-0:05
25K
15.53 mi13:31:082:10:048:2220:19
8:23
+0:09
30K
18.64 mi13:57:552:36:518:2526:47
8:37
+0:14
20M
20.00 mi14:09:492:48:458:2611:54
8:45
+0:08
21M
21.00 mi14:19:002:57:568:289:11
9:11
+0:26
35K
21.75 mi14:25:243:04:208:296:24
8:33
-0:38
23M
23.00 mi14:36:223:15:188:2910:58
8:46
+0:13
24M
24.00 mi14:44:503:23:468:298:28
8:28
-0:18
40K
24.85 mi14:52:093:31:058:307:19
8:33
+0:05
25.2M
25.20 mi14:55:133:34:098:303:04
8:54
+0:21
Finish
26.22 mi15:03:353:42:318:308:22
8:13
-0:41

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

8:13 /mi

Average Pace

8:30 /mi

Slowest Pace

9:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:33:20

96% of race

Time at Steady Pace

9:11

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:29 /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 mi11:47:4926:458:3726:45
8:37
#18290
10K
6.21 mi12:13:4252:388:2825:53
8:20
#17722
15K
9.32 mi12:39:221:18:188:2425:40
8:16
#17201
20K
12.43 mi13:05:121:44:088:2325:50
8:19
#16793
Half
13.11 mi13:10:491:49:458:225:37
8:14
#16774
25K
15.53 mi13:31:082:10:048:2220:19
8:23
#16560
30K
18.64 mi13:57:552:36:518:2526:47
8:37
#16242
20M
20.00 mi14:09:492:48:458:2611:54
8:45
#16147
21M
21.00 mi14:19:002:57:568:289:11
9:11
#16012
35K
21.75 mi14:25:243:04:208:296:24
8:33
#15985
23M
23.00 mi14:36:223:15:188:2910:58
8:46
#15895
24M
24.00 mi14:44:503:23:468:298:28
8:28
#15807
40K
24.85 mi14:52:093:31:058:307:19
8:33
#15721
25.2M
25.20 mi14:55:133:34:098:303:04
8:54
#15664
Finish
26.22 mi15:03:353:42:318:308:22
8:13
#15570
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi182906731673116299(Top 61%)5474(Top 48%)5474(Top 112%)
10K6.21 mi3.10 mi17722+5686360+3716360+37117135(Top 64%)5954(Top 52%)5954(Top 122%)
15K9.32 mi3.11 mi17201+5216032+3286032+32816299(Top 61%)5474(Top 48%)5474(Top 112%)
20K12.43 mi3.11 mi16793+4085799+2335799+23315703(Top 59%)5165(Top 45%)5165(Top 106%)
Half13.11 mi0.68 mi16774+195783+165783+1616071(Top 60%)5339(Top 47%)5339(Top 109%)
25K15.53 mi2.42 mi16560+2145672+1115672+11115466(Top 58%)5121(Top 45%)5121(Top 105%)
30K18.64 mi3.11 mi16242+3185530+1425530+14215047(Top 57%)4958(Top 43%)4958(Top 102%)
20M20.00 mi1.36 mi16147+955482+485482+4815210(Top 57%)5119(Top 45%)5119(Top 105%)
21M21.00 mi1.00 mi16012+1355423+595423+5914422(Top 54%)4727(Top 41%)4727(Top 97%)
35K21.75 mi0.75 mi15985+275424-15424-115612(Top 59%)5471(Top 48%)5471(Top 112%)
23M23.00 mi1.25 mi15895+905397+275397+2714781(Top 56%)5057(Top 44%)5057(Top 104%)
24M24.00 mi1.00 mi15807+885365+325365+3214317(Top 54%)4858(Top 43%)4858(Top 99%)
40K24.85 mi0.85 mi15721+865314+515314+5113747(Top 52%)4614(Top 40%)4614(Top 94%)
25.2M25.20 mi0.35 mi15664+575282+325282+3212033(Top 45%)3771(Top 33%)3771(Top 77%)
Finish26.22 mi1.02 mi15570+945247+355247+3513549(Top 51%)4504(Top 39%)4504(Top 92%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21stories
+97ft-345ft

Overall

16299

Females

5474

F18-39

5474

5K→10K

3.1 - 6.2 mi

Top 64%
×5stories
+79ft-138ft

Overall

17135

Females

5954

F18-39

5954

10K→15K

6.2 - 9.3 mi

Top 61%
×3stories
+67ft-78ft

Overall

16299

Females

5474

F18-39

5474

15K→20K

9.3 - 12.4 mi

Top 59%
×5stories
+106ft-86ft

Overall

15703

Females

5165

F18-39

5165

20K→Half

12.4 - 13.1 mi

Top 60%
×2stories
+19ft-37ft

Overall

16071

Females

5339

F18-39

5339

Half→25K

13.1 - 15.5 mi

Top 58%
×4stories
+66ft-88ft

Overall

15466

Females

5121

F18-39

5121

25K→30K

15.5 - 18.6 mi

Top 57%
×9stories
+181ft-148ft

Overall

15047

Females

4958

F18-39

4958

30K→20M

18.6 - 20.0 mi

Top 57%
×5stories
+64ft-50ft

Overall

15210

Females

5119

F18-39

5119

20M→21M

20.0 - 21.0 mi

Top 54%
×8stories
+106ft-24ft

Overall

14422

Females

4727

F18-39

4727

21M→35K

21.0 - 21.8 mi

Top 59%
×7stories
+17ft-86ft

Overall

15612

Females

5471

F18-39

5471

35K→23M

21.8 - 23.0 mi

Top 56%
×5stories
+23ft-63ft

Overall

14781

Females

5057

F18-39

5057

23M→24M

23.0 - 24.0 mi

Top 54%
×6stories
+12ft-82ft

Overall

14317

Females

4858

F18-39

4858

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

13747

Females

4614

F18-39

4614

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1story
+13ft-16ft

Overall

12033

Females

3771

F18-39

3771

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2stories
+22ft-21ft

Overall

13549

Females

4504

F18-39

4504

Passing Analysis

Category:
Athletes Passed
3224
Passed By
504
Net Change
+2720
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18290
5K → 10K707139+568#18290#17722
10K → 15K56140+521#17722#17201
15K → 20K44133+408#17201#16793
20K → Half3314+19#16793#16774
Half → 25K24632+214#16774#16560
25K → 30K36850+318#16560#16242
30K → 20M12429+95#16242#16147
20M → 21M15116+135#16147#16012
21M → 35K6538+27#16012#15985
35K → 23M13545+90#15985#15895
23M → 24M11931+88#15895#15807
24M → 40K10317+86#15807#15721
40K → 25.2M614+57#15721#15664
25.2M → Finish11016+94#15664#15570
TOTALS3224504+2720
📊

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