Boston Marathon logo
BOSTON MARATHON 2023

Lauren Carter

Bib: 15230•F

MA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 41%
Gender (Female)
#0 / 11423
Top 23%
Division (F18-39)
#0 / 4884
Top 39%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:07
Rank: #12031
Start → 5K
24:07 | 7:46/mi
10K· 6.21 mi
48:22
Rank: #12553 (-522)
5K → 10K
24:15 | 7:48/mi
15K· 9.32 mi
1:12:25
Rank: #12396 (+157)
10K → 15K
24:03 | 7:44/mi
20K· 12.43 mi
1:36:44
Rank: #12255 (+141)
15K → 20K
24:19 | 7:50/mi
Half· 13.11 mi
1:41:53
Rank: #12147 (+108)
20K → Half
5:09 | 7:33/mi
25K· 15.53 mi
2:00:52
Rank: #12013 (+134)
Half → 25K
18:59 | 7:50/mi
30K· 18.64 mi
2:25:14
Rank: #11535 (+478)
25K → 30K
24:22 | 7:51/mi
20M
2:36:06
Rank: #11402 (+133)
30K → 20M
10:52 | 8:00/mi
21M
2:44:44
Rank: #11370 (+32)
20M → 21M
8:38 | 8:38/mi
35K· 21.75 mi
2:50:15
Rank: #11214 (+156)
21M → 35K
5:31 | 7:22/mi
23M
3:00:16
Rank: #11111 (+103)
35K → 23M
10:01 | 8:00/mi
24M
3:07:55
Rank: #10979 (+132)
23M → 24M
7:39 | 7:39/mi
40K· 24.85 mi
3:14:43
Rank: #10916 (+63)
24M → 40K
6:48 | 7:57/mi
25.2M
3:17:43
Rank: #10906 (+10)
40K → 25.2M
3:00 | 8:42/mi
Finish· 26.22 mi
3:26:00
Rank: #10973 (-67)
25.2M → Finish
8:17 | 8:08/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:53
Pace7:46 /mi
2nd Half
Distance13.11 mi
Time1:44:07
Pace7:57 /mi
📊Positive Split: 2.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:5024:077:4624:07
7:46
-
10K
6.21 mi11:19:0548:227:4724:15
7:48
+0:02
15K
9.32 mi11:43:081:12:257:4624:03
7:44
-0:04
20K
12.43 mi12:07:271:36:447:4724:19
7:50
+0:06
Half
13.11 mi12:12:361:41:537:465:09
7:33
-0:17
25K
15.53 mi12:31:352:00:527:4718:59
7:50
+0:17
30K
18.64 mi12:55:572:25:147:4724:22
7:51
+0:01
20M
20.00 mi13:06:492:36:067:4810:52
8:00
+0:09
21M
21.00 mi13:15:272:44:447:518:38
8:38
+0:38
35K
21.75 mi13:20:582:50:157:505:31
7:22
-1:16
23M
23.00 mi13:30:593:00:167:5010:01
8:00
+0:38
24M
24.00 mi13:38:383:07:557:507:39
7:39
-0:21
40K
24.85 mi13:45:263:14:437:506:48
7:57
+0:18
25.2M
25.20 mi13:48:263:17:437:513:00
8:42
+0:45
Finish
26.22 mi13:56:433:26:007:528:17
8:08
-0:34

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

7:22 /mi

Average Pace

7:52 /mi

Slowest Pace

8:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:06:05

90% of race

Time at Steady Pace

16:55

8% of race

Time at Slower Pace

3:00

1% of race

Average Pace: 7:51 /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 mi10:54:5024:077:4624:07
7:46
#12031
10K
6.21 mi11:19:0548:227:4724:15
7:48
#12553
15K
9.32 mi11:43:081:12:257:4624:03
7:44
#12396
20K
12.43 mi12:07:271:36:447:4724:19
7:50
#12255
Half
13.11 mi12:12:361:41:537:465:09
7:33
#12147
25K
15.53 mi12:31:352:00:527:4718:59
7:50
#12013
30K
18.64 mi12:55:572:25:147:4724:22
7:51
#11535
20M
20.00 mi13:06:492:36:067:4810:52
8:00
#11402
21M
21.00 mi13:15:272:44:447:518:38
8:38
#11370
35K
21.75 mi13:20:582:50:157:505:31
7:22
#11214
23M
23.00 mi13:30:593:00:167:5010:01
8:00
#11111
24M
24.00 mi13:38:383:07:557:507:39
7:39
#10979
40K
24.85 mi13:45:263:14:437:506:48
7:57
#10916
25.2M
25.20 mi13:48:263:17:437:513:00
8:42
#10906
Finish
26.22 mi13:56:433:26:007:528:17
8:08
#10973
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi120312887288712216(Top 46%)3022(Top 26%)3022(Top 62%)
10K6.21 mi3.10 mi12553-5223185-2983185-29813175(Top 49%)3530(Top 31%)3530(Top 72%)
15K9.32 mi3.11 mi12396+1573120+653120+6512216(Top 46%)3022(Top 26%)3022(Top 62%)
20K12.43 mi3.11 mi12255+1413065+553065+5511967(Top 45%)2950(Top 26%)2950(Top 60%)
Half13.11 mi0.68 mi12147+1083001+643001+6410693(Top 40%)2231(Top 20%)2231(Top 46%)
25K15.53 mi2.42 mi12013+1342948+532948+5311357(Top 43%)2688(Top 24%)2688(Top 55%)
30K18.64 mi3.11 mi11535+4782706+2422706+2429701(Top 36%)2024(Top 18%)2024(Top 41%)
20M20.00 mi1.36 mi11402+1332659+472659+4710263(Top 39%)2356(Top 21%)2356(Top 48%)
21M21.00 mi1.00 mi11370+322657+22657+211271(Top 42%)3010(Top 26%)3010(Top 62%)
35K21.75 mi0.75 mi11214+1562584+732584+737700(Top 29%)1394(Top 12%)1394(Top 29%)
23M23.00 mi1.25 mi11111+1032550+342550+349766(Top 37%)2393(Top 21%)2393(Top 49%)
24M24.00 mi1.00 mi10979+1322509+412509+418796(Top 33%)2008(Top 18%)2008(Top 41%)
40K24.85 mi0.85 mi10916+632512-32512-39767(Top 37%)2543(Top 22%)2543(Top 52%)
25.2M25.20 mi0.35 mi10906+102519-72519-710801(Top 41%)3075(Top 27%)3075(Top 63%)
Finish26.22 mi1.02 mi10973-672577-582577-5812982(Top 49%)4198(Top 37%)4198(Top 86%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21stories
+97ft-345ft

Overall

12216

Females

3022

F18-39

3022

5K→10K

3.1 - 6.2 mi

Top 49%
×5stories
+79ft-138ft

Overall

13175

Females

3530

F18-39

3530

10K→15K

6.2 - 9.3 mi

Top 46%
×3stories
+67ft-78ft

Overall

12216

Females

3022

F18-39

3022

15K→20K

9.3 - 12.4 mi

Top 45%
×5stories
+106ft-86ft

Overall

11967

Females

2950

F18-39

2950

20K→Half

12.4 - 13.1 mi

Top 40%
×2stories
+19ft-37ft

Overall

10693

Females

2231

F18-39

2231

Half→25K

13.1 - 15.5 mi

Top 43%
×4stories
+66ft-88ft

Overall

11357

Females

2688

F18-39

2688

25K→30K

15.5 - 18.6 mi

Top 36%
×9stories
+181ft-148ft

Overall

9701

Females

2024

F18-39

2024

30K→20M

18.6 - 20.0 mi

Top 39%
×5stories
+64ft-50ft

Overall

10263

Females

2356

F18-39

2356

20M→21M

20.0 - 21.0 mi

Top 42%
×8stories
+106ft-24ft

Overall

11271

Females

3010

F18-39

3010

21M→35K

21.0 - 21.8 mi

Top 29%
×7stories
+17ft-86ft

Overall

7700

Females

1394

F18-39

1394

35K→23M

21.8 - 23.0 mi

Top 37%
×5stories
+23ft-63ft

Overall

9766

Females

2393

F18-39

2393

23M→24M

23.0 - 24.0 mi

Top 33%
×6stories
+12ft-82ft

Overall

8796

Females

2008

F18-39

2008

24M→40K

24.0 - 24.9 mi

Top 37%
×1story
+6ft-20ft

Overall

9767

Females

2543

F18-39

2543

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

10801

Females

3075

F18-39

3075

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2stories
+22ft-21ft

Overall

12982

Females

4198

F18-39

4198

Passing Analysis

Category:
Athletes Passed
2347
Passed By
1289
Net Change
+1058
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12031
5K → 10K130652-522#12031#12553
10K → 15K281124+157#12553#12396
15K → 20K245104+141#12396#12255
20K → Half1113+108#12255#12147
Half → 25K20167+134#12147#12013
25K → 30K49113+478#12013#11535
30K → 20M15926+133#11535#11402
20M → 21M10674+32#11402#11370
21M → 35K1593+156#11370#11214
35K → 23M13835+103#11214#11111
23M → 24M14917+132#11111#10979
24M → 40K9835+63#10979#10916
40K → 25.2M3929+10#10916#10906
25.2M → Finish40107-67#10906#10973
TOTALS23471289+1058
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing