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BOSTON MARATHON 2023

Estelle Mccormack

Bib: 22491•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 46%
Division (F50-54)
#0 / 1207
Top 40%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:21
Rank: #17445
Start → 5K
8:29/mi
26:21 split
10K· 6.21 mi
52:32
Rank: #17595 (-150)
5K → 10K
8:26/mi
26:11 split
15K· 9.32 mi
1:18:48
Rank: #17548 (+47)
10K → 15K
8:27/mi
26:16 split
20K· 12.43 mi
1:45:23
Rank: #17431 (+117)
15K → 20K
8:33/mi
26:35 split
Half· 13.11 mi
1:52:05
Rank: #17894 (-463)
20K → Half
9:49/mi
6:42 split
25K· 15.53 mi
2:12:47
Rank: #17615 (+279)
Half → 25K
8:32/mi
20:42 split
30K· 18.64 mi
2:40:46
Rank: #17510 (+105)
25K → 30K
9:00/mi
27:59 split
20M
2:53:03
Rank: #17435 (+75)
30K → 20M
9:02/mi
12:17 split
21M
3:02:44
Rank: #17394 (+41)
20M → 21M
9:41/mi
9:41 split
35K· 21.75 mi
3:09:29
Rank: #17422 (-28)
21M → 35K
9:01/mi
6:45 split
23M
3:20:47
Rank: #17349 (+73)
35K → 23M
9:02/mi
11:18 split
24M
3:29:34
Rank: #17292 (+57)
23M → 24M
8:47/mi
8:47 split
40K· 24.85 mi
3:37:23
Rank: #17273 (+19)
24M → 40K
9:09/mi
7:49 split
25.2M
3:40:42
Rank: #17252 (+21)
40K → 25.2M
9:37/mi
3:19 split
Finish· 26.22 mi
3:49:39
Rank: #17274 (-22)
25.2M → Finish
8:47/mi
8:57 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:05
Pace8:33 /mi
2nd Half
Distance13.11 mi
Time1:57:34
Pace8:58 /mi
📊Positive Split: 4.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:1226:218:2926:21
8:29
-
10K
6.21 mi11:46:2352:328:2726:11
8:26
-0:03
15K
9.32 mi12:12:391:18:488:2726:16
8:27
+0:01
20K
12.43 mi12:39:141:45:238:2926:35
8:33
+0:06
Half
13.11 mi12:45:561:52:058:336:42
9:49
+1:16
25K
15.53 mi13:06:382:12:478:3320:42
8:32
-1:17
30K
18.64 mi13:34:372:40:468:3727:59
9:00
+0:28
20M
20.00 mi13:46:542:53:038:3912:17
9:02
+0:02
21M
21.00 mi13:56:353:02:448:429:41
9:41
+0:39
35K
21.75 mi14:03:203:09:298:436:45
9:01
-0:40
23M
23.00 mi14:14:383:20:478:4411:18
9:02
+0:01
24M
24.00 mi14:23:253:29:348:448:47
8:47
-0:15
40K
24.85 mi14:31:143:37:238:457:49
9:09
+0:22
25.2M
25.20 mi14:34:333:40:428:453:19
9:37
+0:28
Finish
26.22 mi14:43:303:49:398:468:57
8:47
-0:50

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

8:26 /mi

Average Pace

8:46 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:29:57

91% of race

Time at Steady Pace

19:42

9% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:46 /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 mi11:20:1226:218:2926:21
8:29
#17445
10K
6.21 mi11:46:2352:328:2726:11
8:26
#17595
15K
9.32 mi12:12:391:18:488:2726:16
8:27
#17548
20K
12.43 mi12:39:141:45:238:2926:35
8:33
#17431
Half
13.11 mi12:45:561:52:058:336:42
9:49
#17894
25K
15.53 mi13:06:382:12:478:3320:42
8:32
#17615
30K
18.64 mi13:34:372:40:468:3727:59
9:00
#17510
20M
20.00 mi13:46:542:53:038:3912:17
9:02
#17435
21M
21.00 mi13:56:353:02:448:429:41
9:41
#17394
35K
21.75 mi14:03:203:09:298:436:45
9:01
#17422
23M
23.00 mi14:14:383:20:478:4411:18
9:02
#17349
24M
24.00 mi14:23:253:29:348:448:47
8:47
#17292
40K
24.85 mi14:31:143:37:238:457:49
9:09
#17273
25.2M
25.20 mi14:34:333:40:428:453:19
9:37
#17252
Finish
26.22 mi14:43:303:49:398:468:57
8:47
#17274
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi174456219621917512(Top 66%)6222(Top 54%)6222(Top 515%)
10K6.21 mi3.10 mi17595-1506283-646283-6417785(Top 67%)6362(Top 56%)6362(Top 527%)
15K9.32 mi3.11 mi17548+476242+416242+4117512(Top 66%)6222(Top 54%)6222(Top 515%)
20K12.43 mi3.11 mi17431+1176179+636179+6317223(Top 65%)6063(Top 53%)6063(Top 502%)
Half13.11 mi0.68 mi17894-4636460-2816460-28122920(Top 86%)9304(Top 81%)9304(Top 771%)
25K15.53 mi2.42 mi17615+2796304+1566304+15616437(Top 62%)5692(Top 50%)5692(Top 472%)
30K18.64 mi3.11 mi17510+1056262+426262+4217208(Top 65%)6191(Top 54%)6191(Top 513%)
20M20.00 mi1.36 mi17435+756237+256237+2516763(Top 63%)6014(Top 53%)6014(Top 498%)
21M21.00 mi1.00 mi17394+416230+76230+716797(Top 63%)6073(Top 53%)6073(Top 503%)
35K21.75 mi0.75 mi17422-286259-296259-2918011(Top 68%)6842(Top 60%)6842(Top 567%)
23M23.00 mi1.25 mi17349+736225+346225+3416193(Top 61%)5849(Top 51%)5849(Top 485%)
24M24.00 mi1.00 mi17292+576200+256200+2516134(Top 61%)5884(Top 52%)5884(Top 487%)
40K24.85 mi0.85 mi17273+196214-146214-1416851(Top 63%)6316(Top 55%)6316(Top 523%)
25.2M25.20 mi0.35 mi17252+216211+36211+315806(Top 59%)5762(Top 50%)5762(Top 477%)
Finish26.22 mi1.02 mi17274-226227-166227-1616971(Top 64%)6358(Top 56%)6358(Top 527%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21story building
+97ft-345ft

Overall

17512

Females

6222

F50-54

6222

5K→10K

3.1 - 6.2 mi

Top 67%
×5story building
+79ft-138ft

Overall

17785

Females

6362

F50-54

6362

10K→15K

6.2 - 9.3 mi

Top 66%
×3story building
+67ft-78ft

Overall

17512

Females

6222

F50-54

6222

15K→20K

9.3 - 12.4 mi

Top 65%
×5story building
+106ft-86ft

Overall

17223

Females

6063

F50-54

6063

20K→Half

12.4 - 13.1 mi

Top 86%
×2story building
+19ft-37ft

Overall

22920

Females

9304

F50-54

9304

Half→25K

13.1 - 15.5 mi

Top 62%
×4story building
+66ft-88ft

Overall

16437

Females

5692

F50-54

5692

25K→30K

15.5 - 18.6 mi

Top 65%
×9story building
+181ft-148ft

Overall

17208

Females

6191

F50-54

6191

30K→20M

18.6 - 20.0 mi

Top 63%
×5story building
+64ft-50ft

Overall

16763

Females

6014

F50-54

6014

20M→21M

20.0 - 21.0 mi

Top 63%
×8story building
+106ft-24ft

Overall

16797

Females

6073

F50-54

6073

21M→35K

21.0 - 21.8 mi

Top 68%
×7story building
+17ft-86ft

Overall

18011

Females

6842

F50-54

6842

35K→23M

21.8 - 23.0 mi

Top 61%
×5story building
+23ft-63ft

Overall

16193

Females

5849

F50-54

5849

23M→24M

23.0 - 24.0 mi

Top 61%
×6story building
+12ft-82ft

Overall

16134

Females

5884

F50-54

5884

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

16851

Females

6316

F50-54

6316

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1story
+13ft-16ft

Overall

15806

Females

5762

F50-54

5762

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2story building
+22ft-21ft

Overall

16971

Females

6358

F50-54

6358

Passing Analysis

Category:
Athletes Passed
1833
Passed By
1662
Net Change
+171
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17445
5K → 10K223373-150#17445#17595
10K → 15K225178+47#17595#17548
15K → 20K227110+117#17548#17431
20K → Half2465-463#17431#17894
Half → 25K29011+279#17894#17615
25K → 30K219114+105#17615#17510
30K → 20M12045+75#17510#17435
20M → 21M10463+41#17435#17394
21M → 35K4270-28#17394#17422
35K → 23M12249+73#17422#17349
23M → 24M9134+57#17349#17292
24M → 40K7960+19#17292#17273
40K → 25.2M3615+21#17273#17252
25.2M → Finish5375-22#17252#17274
TOTALS18331662+171
📊

Passing Visuals

Category:
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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