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BOSTON MARATHON 2023

Erin Leahy

Bib: 30157•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
35:10
Rank: #26055
Start → 5K
35:10 | 11:19/mi
10K· 6.21 mi
1:10:42
Rank: #25996 (+59)
5K → 10K
35:32 | 11:26/mi
15K· 9.32 mi
1:46:37
Rank: #25931 (+65)
10K → 15K
35:55 | 11:34/mi
20K· 12.43 mi
2:22:56
Rank: #25790 (+141)
15K → 20K
36:19 | 11:41/mi
Half· 13.11 mi
2:30:40
Rank: #25771 (+19)
20K → Half
7:44 | 11:20/mi
25K· 15.53 mi
2:59:06
Rank: #25624 (+147)
Half → 25K
28:26 | 11:44/mi
30K· 18.64 mi
3:36:20
Rank: #25434 (+190)
25K → 30K
37:14 | 11:59/mi
20M
3:52:07
Rank: #25336 (+98)
30K → 20M
15:47 | 11:37/mi
21M
4:05:01
Rank: #25286 (+50)
20M → 21M
12:54 | 12:54/mi
35K· 21.75 mi
4:13:30
Rank: #25240 (+46)
21M → 35K
8:29 | 11:20/mi
23M
4:28:16
Rank: #25177 (+63)
35K → 23M
14:46 | 11:48/mi
24M
4:39:35
Rank: #25135 (+42)
23M → 24M
11:19 | 11:19/mi
40K· 24.85 mi
4:49:28
Rank: #25093 (+42)
24M → 40K
9:53 | 11:34/mi
25.2M
4:54:12
Rank: #25091 (+2)
40K → 25.2M
4:44 | 13:44/mi
Finish· 26.22 mi
5:05:15
Rank: #25053 (+38)
25.2M → Finish
11:03 | 10:51/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:30:40
Pace11:30 /mi
2nd Half
Distance13.11 mi
Time2:34:35
Pace11:48 /mi
📊Positive Split: 2.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:5535:1011:1935:10
11:19
-
10K
6.21 mi12:29:271:10:4211:2335:32
11:26
+0:07
15K
9.32 mi13:05:221:46:3711:2635:55
11:34
+0:08
20K
12.43 mi13:41:412:22:5611:3036:19
11:41
+0:07
Half
13.11 mi13:49:252:30:4011:307:44
11:20
-0:21
25K
15.53 mi14:17:512:59:0611:3228:26
11:44
+0:24
30K
18.64 mi14:55:053:36:2011:3637:14
11:59
+0:15
20M
20.00 mi15:10:523:52:0711:3615:47
11:37
-0:22
21M
21.00 mi15:23:464:05:0111:4012:54
12:54
+1:17
35K
21.75 mi15:32:154:13:3011:398:29
11:20
-1:34
23M
23.00 mi15:47:014:28:1611:4014:46
11:48
+0:28
24M
24.00 mi15:58:204:39:3511:3911:19
11:19
-0:29
40K
24.85 mi16:08:134:49:2811:399:53
11:34
+0:15
25.2M
25.20 mi16:12:574:54:1211:404:44
13:44
+2:10
Finish
26.22 mi16:24:005:05:1511:3911:03
10:51
-2:53

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

10:51 /mi

Average Pace

11:39 /mi

Slowest Pace

13:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

11:03

4% of race

Time at Steady Pace

3:59:20

78% of race

Time at Slower Pace

54:52

18% of race

Average Pace: 11:39 /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 mi11:53:5535:1011:1935:10
11:19
#26055
10K
6.21 mi12:29:271:10:4211:2335:32
11:26
#25996
15K
9.32 mi13:05:221:46:3711:2635:55
11:34
#25931
20K
12.43 mi13:41:412:22:5611:3036:19
11:41
#25790
Half
13.11 mi13:49:252:30:4011:307:44
11:20
#25771
25K
15.53 mi14:17:512:59:0611:3228:26
11:44
#25624
30K
18.64 mi14:55:053:36:2011:3637:14
11:59
#25434
20M
20.00 mi15:10:523:52:0711:3615:47
11:37
#25336
21M
21.00 mi15:23:464:05:0111:4012:54
12:54
#25286
35K
21.75 mi15:32:154:13:3011:398:29
11:20
#25240
23M
23.00 mi15:47:014:28:1611:4014:46
11:48
#25177
24M
24.00 mi15:58:204:39:3511:3911:19
11:19
#25135
40K
24.85 mi16:08:134:49:2811:399:53
11:34
#25093
25.2M
25.20 mi16:12:574:54:1211:404:44
13:44
#25091
Finish
26.22 mi16:24:005:05:1511:3911:03
10:51
#25053
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi26055110851108525755(Top 97%)10896(Top 95%)10896(Top 223%)
10K6.21 mi3.10 mi25996+5911040+4511040+4525909(Top 97%)10984(Top 96%)10984(Top 225%)
15K9.32 mi3.11 mi25931+6511003+3711003+3725755(Top 97%)10896(Top 95%)10896(Top 223%)
20K12.43 mi3.11 mi25790+14110921+8210921+8225440(Top 96%)10738(Top 94%)10738(Top 220%)
Half13.11 mi0.68 mi25771+1910915+610915+625331(Top 95%)10687(Top 94%)10687(Top 219%)
25K15.53 mi2.42 mi25624+14710829+8610829+8624915(Top 94%)10471(Top 92%)10471(Top 214%)
30K18.64 mi3.11 mi25434+19010741+8810741+8824481(Top 92%)10267(Top 90%)10267(Top 210%)
20M20.00 mi1.36 mi25336+9810686+5510686+5523703(Top 89%)9905(Top 87%)9905(Top 203%)
21M21.00 mi1.00 mi25286+5010664+2210664+2223983(Top 90%)10075(Top 88%)10075(Top 206%)
35K21.75 mi0.75 mi25240+4610643+2110643+2123885(Top 90%)10073(Top 88%)10073(Top 206%)
23M23.00 mi1.25 mi25177+6310620+2310620+2323712(Top 89%)9966(Top 87%)9966(Top 204%)
24M24.00 mi1.00 mi25135+4210605+1510605+1523630(Top 89%)9966(Top 87%)9966(Top 204%)
40K24.85 mi0.85 mi25093+4210584+2110584+2123315(Top 88%)9837(Top 86%)9837(Top 201%)
25.2M25.20 mi0.35 mi25091+210586-210586-224772(Top 93%)10577(Top 93%)10577(Top 217%)
Finish26.22 mi1.02 mi25053+3810568+1810568+1823702(Top 89%)10013(Top 88%)10013(Top 205%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 97%
×21stories
+97ft-345ft

Overall

25755

Females

10896

F18-39

10896

5K→10K

3.1 - 6.2 mi

Top 97%
×5stories
+79ft-138ft

Overall

25909

Females

10984

F18-39

10984

10K→15K

6.2 - 9.3 mi

Top 97%
×3stories
+67ft-78ft

Overall

25755

Females

10896

F18-39

10896

15K→20K

9.3 - 12.4 mi

Top 96%
×5stories
+106ft-86ft

Overall

25440

Females

10738

F18-39

10738

20K→Half

12.4 - 13.1 mi

Top 95%
×2stories
+19ft-37ft

Overall

25331

Females

10687

F18-39

10687

Half→25K

13.1 - 15.5 mi

Top 94%
×4stories
+66ft-88ft

Overall

24915

Females

10471

F18-39

10471

25K→30K

15.5 - 18.6 mi

Top 92%
×9stories
+181ft-148ft

Overall

24481

Females

10267

F18-39

10267

30K→20M

18.6 - 20.0 mi

Top 89%
×5stories
+64ft-50ft

Overall

23703

Females

9905

F18-39

9905

20M→21M

20.0 - 21.0 mi

Top 90%
×8stories
+106ft-24ft

Overall

23983

Females

10075

F18-39

10075

21M→35K

21.0 - 21.8 mi

Top 90%
×7stories
+17ft-86ft

Overall

23885

Females

10073

F18-39

10073

35K→23M

21.8 - 23.0 mi

Top 89%
×5stories
+23ft-63ft

Overall

23712

Females

9966

F18-39

9966

23M→24M

23.0 - 24.0 mi

Top 89%
×6stories
+12ft-82ft

Overall

23630

Females

9966

F18-39

9966

24M→40K

24.0 - 24.9 mi

Top 88%
×1story
+6ft-20ft

Overall

23315

Females

9837

F18-39

9837

40K→25.2M

24.9 - 25.2 mi

Top 93%
×1story
+13ft-16ft

Overall

24772

Females

10577

F18-39

10577

25.2M→Finish

25.2 - 26.2 mi

Top 89%
×2stories
+22ft-21ft

Overall

23702

Females

10013

F18-39

10013

Passing Analysis

Category:
Athletes Passed
1176
Passed By
174
Net Change
+1002
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26055
5K → 10K12566+59#26055#25996
10K → 15K9934+65#25996#25931
15K → 20K15514+141#25931#25790
20K → Half267+19#25790#25771
Half → 25K1525+147#25771#25624
25K → 30K1966+190#25624#25434
30K → 20M1002+98#25434#25336
20M → 21M6212+50#25336#25286
21M → 35K482+46#25286#25240
35K → 23M7310+63#25240#25177
23M → 24M464+42#25177#25135
24M → 40K431+42#25135#25093
40K → 25.2M97+2#25093#25091
25.2M → Finish424+38#25091#25053
TOTALS1176174+1002
📊

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