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BOSTON MARATHON 2023

Lindsay Cathro

Bib: 18690•F

VA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 31%
Gender (Female)
#0 / 11423
Top 12%
Division (F18-39)
#0 / 4884
Top 22%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:02
Rank: #11773
Start → 5K
24:02 | 7:44/mi
10K· 6.21 mi
47:29
Rank: #11280 (+493)
5K → 10K
23:27 | 7:33/mi
15K· 9.32 mi
1:10:57
Rank: #11033 (+247)
10K → 15K
23:28 | 7:33/mi
20K· 12.43 mi
1:34:23
Rank: #10662 (+371)
15K → 20K
23:26 | 7:33/mi
Half· 13.11 mi
1:39:26
Rank: #10587 (+75)
20K → Half
5:03 | 7:24/mi
25K· 15.53 mi
1:57:30
Rank: #10175 (+412)
Half → 25K
18:04 | 7:27/mi
30K· 18.64 mi
2:20:52
Rank: #9637 (+538)
25K → 30K
23:22 | 7:31/mi
20M
2:30:51
Rank: #9289 (+348)
30K → 20M
9:59 | 7:21/mi
21M
2:38:45
Rank: #9100 (+189)
20M → 21M
7:54 | 7:54/mi
35K· 21.75 mi
2:44:09
Rank: #8999 (+101)
21M → 35K
5:24 | 7:13/mi
23M
2:53:24
Rank: #8780 (+219)
35K → 23M
9:15 | 7:23/mi
24M
3:00:33
Rank: #8585 (+195)
23M → 24M
7:09 | 7:09/mi
40K· 24.85 mi
3:06:43
Rank: #8402 (+183)
24M → 40K
6:10 | 7:13/mi
25.2M
3:09:25
Rank: #8329 (+73)
40K → 25.2M
2:42 | 7:50/mi
Finish· 26.22 mi
3:16:38
Rank: #8193 (+136)
25.2M → Finish
7:13 | 7:05/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:39:26
Pace7:35 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:37:12
Pace7:25 /mi
📊Negative Split: 2.2% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:0424:027:4424:02
7:44
-
10K
6.21 mi11:38:3147:297:3923:27
7:33
-0:11
15K
9.32 mi12:01:591:10:577:3723:28
7:33
0:00
20K
12.43 mi12:25:251:34:237:3623:26
7:33
0:00
Half
13.11 mi12:30:281:39:267:355:03
7:24
-0:09
25K
15.53 mi12:48:321:57:307:3418:04
7:27
+0:03
30K
18.64 mi13:11:542:20:527:3323:22
7:31
+0:04
20M
20.00 mi13:21:532:30:517:339:59
7:21
-0:10
21M
21.00 mi13:29:472:38:457:347:54
7:54
+0:33
35K
21.75 mi13:35:112:44:097:335:24
7:13
-0:41
23M
23.00 mi13:44:262:53:247:329:15
7:23
+0:10
24M
24.00 mi13:51:353:00:337:317:09
7:09
-0:14
40K
24.85 mi13:57:453:06:437:316:10
7:13
+0:04
25.2M
25.20 mi14:00:273:09:257:312:42
7:50
+0:37
Finish
26.22 mi14:07:403:16:387:307:13
7:05
-0:45

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

7:05 /mi

Average Pace

7:30 /mi

Slowest Pace

7:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:06:02

95% of race

Time at Steady Pace

10:36

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:30 /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 mi11:15:0424:027:4424:02
7:44
#11773
10K
6.21 mi11:38:3147:297:3923:27
7:33
#11280
15K
9.32 mi12:01:591:10:577:3723:28
7:33
#11033
20K
12.43 mi12:25:251:34:237:3623:26
7:33
#10662
Half
13.11 mi12:30:281:39:267:355:03
7:24
#10587
25K
15.53 mi12:48:321:57:307:3418:04
7:27
#10175
30K
18.64 mi13:11:542:20:527:3323:22
7:31
#9637
20M
20.00 mi13:21:532:30:517:339:59
7:21
#9289
21M
21.00 mi13:29:472:38:457:347:54
7:54
#9100
35K
21.75 mi13:35:112:44:097:335:24
7:13
#8999
23M
23.00 mi13:44:262:53:247:329:15
7:23
#8780
24M
24.00 mi13:51:353:00:337:317:09
7:09
#8585
40K
24.85 mi13:57:453:06:437:316:10
7:13
#8402
25.2M
25.20 mi14:00:273:09:257:312:42
7:50
#8329
Finish
26.22 mi14:07:403:16:387:307:13
7:05
#8193
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi117732729272910604(Top 40%)2129(Top 19%)2129(Top 44%)
10K6.21 mi3.10 mi11280+4932479+2502479+25010859(Top 41%)2233(Top 20%)2233(Top 46%)
15K9.32 mi3.11 mi11033+2472347+1322347+13210604(Top 40%)2129(Top 19%)2129(Top 44%)
20K12.43 mi3.11 mi10662+3712162+1852162+1859656(Top 36%)1753(Top 15%)1753(Top 36%)
Half13.11 mi0.68 mi10587+752112+502112+509463(Top 36%)1643(Top 14%)1643(Top 34%)
25K15.53 mi2.42 mi10175+4121937+1751937+1758437(Top 32%)1341(Top 12%)1341(Top 27%)
30K18.64 mi3.11 mi9637+5381732+2051732+2057376(Top 28%)1062(Top 9%)1062(Top 22%)
20M20.00 mi1.36 mi9289+3481628+1041628+1045932(Top 22%)696(Top 6%)696(Top 14%)
21M21.00 mi1.00 mi9100+1891575+531575+536764(Top 25%)1045(Top 9%)1045(Top 21%)
35K21.75 mi0.75 mi8999+1011541+341541+346689(Top 25%)991(Top 9%)991(Top 20%)
23M23.00 mi1.25 mi8780+2191480+611480+615826(Top 22%)767(Top 7%)767(Top 16%)
24M24.00 mi1.00 mi8585+1951419+611419+615505(Top 21%)730(Top 6%)730(Top 15%)
40K24.85 mi0.85 mi8402+1831375+441375+445002(Top 19%)660(Top 6%)660(Top 14%)
25.2M25.20 mi0.35 mi8329+731357+181357+185632(Top 21%)945(Top 8%)945(Top 19%)
Finish26.22 mi1.02 mi8193+1361330+271330+275753(Top 22%)989(Top 9%)989(Top 20%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21stories
+97ft-345ft

Overall

10604

Females

2129

F18-39

2129

5K→10K

3.1 - 6.2 mi

Top 41%
×5stories
+79ft-138ft

Overall

10859

Females

2233

F18-39

2233

10K→15K

6.2 - 9.3 mi

Top 40%
×3stories
+67ft-78ft

Overall

10604

Females

2129

F18-39

2129

15K→20K

9.3 - 12.4 mi

Top 36%
×5stories
+106ft-86ft

Overall

9656

Females

1753

F18-39

1753

20K→Half

12.4 - 13.1 mi

Top 36%
×2stories
+19ft-37ft

Overall

9463

Females

1643

F18-39

1643

Half→25K

13.1 - 15.5 mi

Top 32%
×4stories
+66ft-88ft

Overall

8437

Females

1341

F18-39

1341

25K→30K

15.5 - 18.6 mi

Top 28%
×9stories
+181ft-148ft

Overall

7376

Females

1062

F18-39

1062

30K→20M

18.6 - 20.0 mi

Top 22%
×5stories
+64ft-50ft

Overall

5932

Females

696

F18-39

696

20M→21M

20.0 - 21.0 mi

Top 25%
×8stories
+106ft-24ft

Overall

6764

Females

1045

F18-39

1045

21M→35K

21.0 - 21.8 mi

Top 25%
×7stories
+17ft-86ft

Overall

6689

Females

991

F18-39

991

35K→23M

21.8 - 23.0 mi

Top 22%
×5stories
+23ft-63ft

Overall

5826

Females

767

F18-39

767

23M→24M

23.0 - 24.0 mi

Top 21%
×6stories
+12ft-82ft

Overall

5505

Females

730

F18-39

730

24M→40K

24.0 - 24.9 mi

Top 19%
×1story
+6ft-20ft

Overall

5002

Females

660

F18-39

660

40K→25.2M

24.9 - 25.2 mi

Top 21%
×1story
+13ft-16ft

Overall

5632

Females

945

F18-39

945

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2stories
+22ft-21ft

Overall

5753

Females

989

F18-39

989

Passing Analysis

Category:
Athletes Passed
3862*
Passed By
282
Net Change
+3580
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11773
5K → 10K612119+493#11773#11280
10K → 15K33083+247#11280#11033
15K → 20K39827+371#11033#10662
20K → Half805+75#10662#10587
Half → 25K4175+412#10587#10175
25K → 30K543*5+538#10175#9637
30K → 20M3480+348#9637#9289
20M → 21M1989+189#9289#9100
21M → 35K1054+101#9100#8999
35K → 23M2256+219#8999#8780
23M → 24M1983+195#8780#8585
24M → 40K1863+183#8585#8402
40K → 25.2M763+73#8402#8329
25.2M → Finish14610+136#8329#8193
TOTALS3862*282+3580

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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