Boston Marathon logo
BOSTON MARATHON 2023

Leah Gouthro

Bib: 9452•F

NS

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 27%
Gender (Female)
#0 / 11423
Top 9%
Division (F18-39)
#0 / 4884
Top 16%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:34
Rank: #7901
Start → 5K
22:34 | 7:16/mi
10K· 6.21 mi
45:01
Rank: #8081 (-180)
5K → 10K
22:27 | 7:14/mi
15K· 9.32 mi
1:07:30
Rank: #8062 (+19)
10K → 15K
22:29 | 7:14/mi
20K· 12.43 mi
1:30:15
Rank: #7993 (+69)
15K → 20K
22:45 | 7:19/mi
Half· 13.11 mi
1:35:05
Rank: #7931 (+62)
20K → Half
4:50 | 7:05/mi
25K· 15.53 mi
1:53:09
Rank: #7955 (-24)
Half → 25K
18:04 | 7:27/mi
30K· 18.64 mi
2:17:01
Rank: #8020 (-65)
25K → 30K
23:52 | 7:41/mi
20M
2:27:24
Rank: #7937 (+83)
30K → 20M
10:23 | 7:38/mi
21M
2:35:32
Rank: #7915 (+22)
20M → 21M
8:08 | 8:08/mi
35K· 21.75 mi
2:40:50
Rank: #7815 (+100)
21M → 35K
5:18 | 7:05/mi
23M
2:50:14
Rank: #7692 (+123)
35K → 23M
9:24 | 7:30/mi
24M
2:57:13
Rank: #7507 (+185)
23M → 24M
6:59 | 6:59/mi
40K· 24.85 mi
3:03:23
Rank: #7386 (+121)
24M → 40K
6:10 | 7:13/mi
25.2M
3:06:06
Rank: #7356 (+30)
40K → 25.2M
2:43 | 7:53/mi
Finish· 26.22 mi
3:13:12
Rank: #7210 (+146)
25.2M → Finish
7:06 | 6:58/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
Time1:35:05
Pace7:15 /mi
2nd Half
Distance13.11 mi
Time1:38:07
Pace7:29 /mi
📊Positive Split: 3.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:0722:347:1622:34
7:16
-
10K
6.21 mi11:10:3445:017:1522:27
7:14
-0:02
15K
9.32 mi11:33:031:07:307:1522:29
7:14
0:00
20K
12.43 mi11:55:481:30:157:1622:45
7:19
+0:05
Half
13.11 mi12:00:381:35:057:154:50
7:05
-0:14
25K
15.53 mi12:18:421:53:097:1718:04
7:27
+0:22
30K
18.64 mi12:42:342:17:017:2123:52
7:41
+0:14
20M
20.00 mi12:52:572:27:247:2210:23
7:38
-0:03
21M
21.00 mi13:01:052:35:327:248:08
8:08
+0:30
35K
21.75 mi13:06:232:40:507:245:18
7:05
-1:03
23M
23.00 mi13:15:472:50:147:249:24
7:30
+0:25
24M
24.00 mi13:22:462:57:137:236:59
6:59
-0:31
40K
24.85 mi13:28:563:03:237:236:10
7:13
+0:14
25.2M
25.20 mi13:31:393:06:067:232:43
7:53
+0:40
Finish
26.22 mi13:38:453:13:127:227:06
6:58
-0:55

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

6:58 /mi

Average Pace

7:22 /mi

Slowest Pace

8:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:38:29

82% of race

Time at Steady Pace

34:43

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:22 /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 mi10:48:0722:347:1622:34
7:16
#7901
10K
6.21 mi11:10:3445:017:1522:27
7:14
#8081
15K
9.32 mi11:33:031:07:307:1522:29
7:14
#8062
20K
12.43 mi11:55:481:30:157:1622:45
7:19
#7993
Half
13.11 mi12:00:381:35:057:154:50
7:05
#7931
25K
15.53 mi12:18:421:53:097:1718:04
7:27
#7955
30K
18.64 mi12:42:342:17:017:2123:52
7:41
#8020
20M
20.00 mi12:52:572:27:247:2210:23
7:38
#7937
21M
21.00 mi13:01:052:35:327:248:08
8:08
#7915
35K
21.75 mi13:06:232:40:507:245:18
7:05
#7815
23M
23.00 mi13:15:472:50:147:249:24
7:30
#7692
24M
24.00 mi13:22:462:57:137:236:59
6:59
#7507
40K
24.85 mi13:28:563:03:237:236:10
7:13
#7386
25.2M
25.20 mi13:31:393:06:067:232:43
7:53
#7356
Finish
26.22 mi13:38:453:13:127:227:06
6:58
#7210
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi79019829828071(Top 30%)1093(Top 10%)1093(Top 22%)
10K6.21 mi3.10 mi8081-1801061-791061-798309(Top 31%)1147(Top 10%)1147(Top 23%)
15K9.32 mi3.11 mi8062+19106110618071(Top 30%)1093(Top 10%)1093(Top 22%)
20K12.43 mi3.11 mi7993+691054+71054+77961(Top 30%)1089(Top 10%)1089(Top 22%)
Half13.11 mi0.68 mi7931+621034+201034+207113(Top 27%)805(Top 7%)805(Top 16%)
25K15.53 mi2.42 mi7955-241058-241058-248426(Top 32%)1330(Top 12%)1330(Top 27%)
30K18.64 mi3.11 mi8020-651122-641122-648521(Top 32%)1514(Top 13%)1514(Top 31%)
20M20.00 mi1.36 mi7937+831107+151107+157774(Top 29%)1310(Top 11%)1310(Top 27%)
21M21.00 mi1.00 mi7915+221112-51112-58207(Top 31%)1603(Top 14%)1603(Top 33%)
35K21.75 mi0.75 mi7815+1001087+251087+255862(Top 22%)725(Top 6%)725(Top 15%)
23M23.00 mi1.25 mi7692+1231062+251062+256485(Top 24%)986(Top 9%)986(Top 20%)
24M24.00 mi1.00 mi7507+1851029+331029+334635(Top 17%)480(Top 4%)480(Top 10%)
40K24.85 mi0.85 mi7386+1211012+171012+174994(Top 19%)652(Top 6%)652(Top 13%)
25.2M25.20 mi0.35 mi7356+301011+11011+15873(Top 22%)1004(Top 9%)1004(Top 21%)
Finish26.22 mi1.02 mi7210+146989+22989+225052(Top 19%)750(Top 7%)750(Top 15%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 30%
×21stories
+97ft-345ft

Overall

8071

Females

1093

F18-39

1093

5K→10K

3.1 - 6.2 mi

Top 31%
×5stories
+79ft-138ft

Overall

8309

Females

1147

F18-39

1147

10K→15K

6.2 - 9.3 mi

Top 30%
×3stories
+67ft-78ft

Overall

8071

Females

1093

F18-39

1093

15K→20K

9.3 - 12.4 mi

Top 30%
×5stories
+106ft-86ft

Overall

7961

Females

1089

F18-39

1089

20K→Half

12.4 - 13.1 mi

Top 27%
×2stories
+19ft-37ft

Overall

7113

Females

805

F18-39

805

Half→25K

13.1 - 15.5 mi

Top 32%
×4stories
+66ft-88ft

Overall

8426

Females

1330

F18-39

1330

25K→30K

15.5 - 18.6 mi

Top 32%
×9stories
+181ft-148ft

Overall

8521

Females

1514

F18-39

1514

30K→20M

18.6 - 20.0 mi

Top 29%
×5stories
+64ft-50ft

Overall

7774

Females

1310

F18-39

1310

20M→21M

20.0 - 21.0 mi

Top 31%
×8stories
+106ft-24ft

Overall

8207

Females

1603

F18-39

1603

21M→35K

21.0 - 21.8 mi

Top 22%
×7stories
+17ft-86ft

Overall

5862

Females

725

F18-39

725

35K→23M

21.8 - 23.0 mi

Top 24%
×5stories
+23ft-63ft

Overall

6485

Females

986

F18-39

986

23M→24M

23.0 - 24.0 mi

Top 17%
×6stories
+12ft-82ft

Overall

4635

Females

480

F18-39

480

24M→40K

24.0 - 24.9 mi

Top 19%
×1story
+6ft-20ft

Overall

4994

Females

652

F18-39

652

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

5873

Females

1004

F18-39

1004

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2stories
+22ft-21ft

Overall

5052

Females

750

F18-39

750

Passing Analysis

Category:
Athletes Passed
1663
Passed By
972
Net Change
+691
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7901
5K → 10K147327-180#7901#8081
10K → 15K142123+19#8081#8062
15K → 20K15283+69#8062#7993
20K → Half631+62#7993#7931
Half → 25K85109-24#7931#7955
25K → 30K107172-65#7955#8020
30K → 20M12037+83#8020#7937
20M → 21M8361+22#7937#7915
21M → 35K1044+100#7915#7815
35K → 23M14320+123#7815#7692
23M → 24M1883+185#7692#7507
24M → 40K1276+121#7507#7386
40K → 25.2M4414+30#7386#7356
25.2M → Finish15812+146#7356#7210
TOTALS1663972+691
📊

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