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BOSTON MARATHON 2023

Lisa Cronin

Bib: 8329•F

RI

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 17%
Gender (Female)
#0 / 11423
Top 3%
Division (F18-39)
#0 / 4884
Top 6%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:15
Rank: #5074
Start → 5K
21:15 | 6:50/mi
10K· 6.21 mi
42:26
Rank: #5217 (-143)
5K → 10K
21:11 | 6:49/mi
15K· 9.32 mi
1:03:47
Rank: #5410 (-193)
10K → 15K
21:21 | 6:52/mi
20K· 12.43 mi
1:25:11
Rank: #5375 (+35)
15K → 20K
21:24 | 6:53/mi
Half· 13.11 mi
1:29:52
Rank: #5395 (-20)
20K → Half
4:41 | 6:52/mi
25K· 15.53 mi
1:46:35
Rank: #5289 (+106)
Half → 25K
16:43 | 6:54/mi
30K· 18.64 mi
2:08:38
Rank: #5185 (+104)
25K → 30K
22:03 | 7:06/mi
20M
2:18:23
Rank: #5142 (+43)
30K → 20M
9:45 | 7:10/mi
21M
2:25:58
Rank: #5095 (+47)
20M → 21M
7:35 | 7:35/mi
35K· 21.75 mi
2:31:00
Rank: #5036 (+59)
21M → 35K
5:02 | 6:44/mi
23M
2:39:45
Rank: #4893 (+143)
35K → 23M
8:45 | 6:59/mi
24M
2:46:30
Rank: #4788 (+105)
23M → 24M
6:45 | 6:45/mi
40K· 24.85 mi
2:52:25
Rank: #4703 (+85)
24M → 40K
5:55 | 6:55/mi
25.2M
2:54:57
Rank: #4663 (+40)
40K → 25.2M
2:32 | 7:21/mi
Finish· 26.22 mi
3:01:59
Rank: #4618 (+45)
25.2M → Finish
7:02 | 6:54/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:52
Pace6:51 /mi
2nd Half
Distance13.11 mi
Time1:32:07
Pace7:02 /mi
📊Positive Split: 2.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:3421:156:5021:15
6:50
-
10K
6.21 mi11:07:4542:266:5021:11
6:49
-0:01
15K
9.32 mi11:29:061:03:476:5121:21
6:52
+0:03
20K
12.43 mi11:50:301:25:116:5121:24
6:53
+0:01
Half
13.11 mi11:55:111:29:526:514:41
6:52
-0:01
25K
15.53 mi12:11:541:46:356:5216:43
6:54
+0:02
30K
18.64 mi12:33:572:08:386:5422:03
7:06
+0:12
20M
20.00 mi12:43:422:18:236:559:45
7:10
+0:04
21M
21.00 mi12:51:172:25:586:577:35
7:35
+0:25
35K
21.75 mi12:56:192:31:006:575:02
6:44
-0:51
23M
23.00 mi13:05:042:39:456:578:45
6:59
+0:15
24M
24.00 mi13:11:492:46:306:566:45
6:45
-0:14
40K
24.85 mi13:17:442:52:256:565:55
6:55
+0:10
25.2M
25.20 mi13:20:162:54:576:572:32
7:21
+0:26
Finish
26.22 mi13:27:183:01:596:577:02
6:54
-0:27

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

6:44 /mi

Average Pace

6:57 /mi

Slowest Pace

7:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:54:24

96% of race

Time at Steady Pace

7:35

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:56 /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 mi10:46:3421:156:5021:15
6:50
#5074
10K
6.21 mi11:07:4542:266:5021:11
6:49
#5217
15K
9.32 mi11:29:061:03:476:5121:21
6:52
#5410
20K
12.43 mi11:50:301:25:116:5121:24
6:53
#5375
Half
13.11 mi11:55:111:29:526:514:41
6:52
#5395
25K
15.53 mi12:11:541:46:356:5216:43
6:54
#5289
30K
18.64 mi12:33:572:08:386:5422:03
7:06
#5185
20M
20.00 mi12:43:422:18:236:559:45
7:10
#5142
21M
21.00 mi12:51:172:25:586:577:35
7:35
#5095
35K
21.75 mi12:56:192:31:006:575:02
6:44
#5036
23M
23.00 mi13:05:042:39:456:578:45
6:59
#4893
24M
24.00 mi13:11:492:46:306:566:45
6:45
#4788
40K
24.85 mi13:17:442:52:256:565:55
6:55
#4703
25.2M
25.20 mi13:20:162:54:576:572:32
7:21
#4663
Finish
26.22 mi13:27:183:01:596:577:02
6:54
#4618
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi50743623625761(Top 22%)477(Top 4%)477(Top 10%)
10K6.21 mi3.10 mi5217-143380-18380-185490(Top 21%)428(Top 4%)428(Top 9%)
15K9.32 mi3.11 mi5410-193403-23403-235761(Top 22%)477(Top 4%)477(Top 10%)
20K12.43 mi3.11 mi5375+35397+6397+65275(Top 20%)399(Top 3%)399(Top 8%)
Half13.11 mi0.68 mi5395-20403-6403-65827(Top 22%)465(Top 4%)465(Top 10%)
25K15.53 mi2.42 mi5289+106385+18385+184945(Top 19%)365(Top 3%)365(Top 7%)
30K18.64 mi3.11 mi5185+104382+3382+34927(Top 19%)391(Top 3%)391(Top 8%)
20M20.00 mi1.36 mi5142+43381+1381+15008(Top 19%)454(Top 4%)454(Top 9%)
21M21.00 mi1.00 mi5095+473813815020(Top 19%)523(Top 5%)523(Top 11%)
35K21.75 mi0.75 mi5036+59377+4377+43783(Top 14%)293(Top 3%)293(Top 6%)
23M23.00 mi1.25 mi4893+143358+19358+193759(Top 14%)288(Top 3%)288(Top 6%)
24M24.00 mi1.00 mi4788+105345+13345+133417(Top 13%)267(Top 2%)267(Top 5%)
40K24.85 mi0.85 mi4703+85338+7338+73470(Top 13%)305(Top 3%)305(Top 6%)
25.2M25.20 mi0.35 mi4663+40335+3335+33263(Top 12%)293(Top 3%)293(Top 6%)
Finish26.22 mi1.02 mi4618+45333+2333+24663(Top 18%)615(Top 5%)615(Top 13%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 22%
×21stories
+97ft-345ft

Overall

5761

Females

477

F18-39

477

5K→10K

3.1 - 6.2 mi

Top 21%
×5stories
+79ft-138ft

Overall

5490

Females

428

F18-39

428

10K→15K

6.2 - 9.3 mi

Top 22%
×3stories
+67ft-78ft

Overall

5761

Females

477

F18-39

477

15K→20K

9.3 - 12.4 mi

Top 20%
×5stories
+106ft-86ft

Overall

5275

Females

399

F18-39

399

20K→Half

12.4 - 13.1 mi

Top 22%
×2stories
+19ft-37ft

Overall

5827

Females

465

F18-39

465

Half→25K

13.1 - 15.5 mi

Top 19%
×4stories
+66ft-88ft

Overall

4945

Females

365

F18-39

365

25K→30K

15.5 - 18.6 mi

Top 19%
×9stories
+181ft-148ft

Overall

4927

Females

391

F18-39

391

30K→20M

18.6 - 20.0 mi

Top 19%
×5stories
+64ft-50ft

Overall

5008

Females

454

F18-39

454

20M→21M

20.0 - 21.0 mi

Top 19%
×8stories
+106ft-24ft

Overall

5020

Females

523

F18-39

523

21M→35K

21.0 - 21.8 mi

Top 14%
×7stories
+17ft-86ft

Overall

3783

Females

293

F18-39

293

35K→23M

21.8 - 23.0 mi

Top 14%
×5stories
+23ft-63ft

Overall

3759

Females

288

F18-39

288

23M→24M

23.0 - 24.0 mi

Top 13%
×6stories
+12ft-82ft

Overall

3417

Females

267

F18-39

267

24M→40K

24.0 - 24.9 mi

Top 13%
×1story
+6ft-20ft

Overall

3470

Females

305

F18-39

305

40K→25.2M

24.9 - 25.2 mi

Top 12%
×1story
+13ft-16ft

Overall

3263

Females

293

F18-39

293

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2stories
+22ft-21ft

Overall

4663

Females

615

F18-39

615

Passing Analysis

Category:
Athletes Passed
1367
Passed By
911
Net Change
+456
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5074
5K → 10K142285-143#5074#5217
10K → 15K54247-193#5217#5410
15K → 20K12085+35#5410#5375
20K → Half1535-20#5375#5395
Half → 25K14943+106#5395#5289
25K → 30K17874+104#5289#5185
30K → 20M9350+43#5185#5142
20M → 21M8033+47#5142#5095
21M → 35K667+59#5095#5036
35K → 23M15310+143#5036#4893
23M → 24M1138+105#4893#4788
24M → 40K949+85#4788#4703
40K → 25.2M411+40#4703#4663
25.2M → Finish6924+45#4663#4618
TOTALS1367911+456
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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