Boston Marathon logo
BOSTON MARATHON 2023

Megan Shea

Bib: 10084•F

SC

0:00
0:00
/ mi
Be the first to cheer!
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
26:26
Rank: #17619
Start → 5K
26:26 | 8:30/mi
10K· 6.21 mi
53:10
Rank: #18238 (-619)
5K → 10K
26:44 | 8:36/mi
15K· 9.32 mi
1:20:45
Rank: #18833 (-595)
10K → 15K
27:35 | 8:53/mi
20K· 12.43 mi
1:48:42
Rank: #19051 (-218)
15K → 20K
27:57 | 9:00/mi
Half· 13.11 mi
1:54:37
Rank: #19044 (+7)
20K → Half
5:55 | 8:40/mi
25K· 15.53 mi
2:16:21
Rank: #18986 (+58)
Half → 25K
21:44 | 8:58/mi
30K· 18.64 mi
2:45:42
Rank: #19047 (-61)
25K → 30K
29:21 | 9:27/mi
20M
2:58:49
Rank: #19082 (-35)
30K → 20M
13:07 | 9:39/mi
21M
3:09:24
Rank: #19135 (-53)
20M → 21M
10:35 | 10:35/mi
35K· 21.75 mi
3:16:15
Rank: #19123 (+12)
21M → 35K
6:51 | 9:09/mi
23M
3:28:11
Rank: #19090 (+33)
35K → 23M
11:56 | 9:32/mi
24M
3:38:12
Rank: #19191 (-101)
23M → 24M
10:01 | 10:01/mi
40K· 24.85 mi
3:46:42
Rank: #19232 (-41)
24M → 40K
8:30 | 9:56/mi
25.2M
3:50:14
Rank: #19223 (+9)
40K → 25.2M
3:32 | 10:15/mi
Finish· 26.22 mi
3:58:26
Rank: #19029 (+194)
25.2M → Finish
8:12 | 8:03/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
Time1:54:37
Pace8:45 /mi
2nd Half
Distance13.11 mi
Time2:03:49
Pace9:27 /mi
📊Positive Split: 8.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:4426:268:3026:26
8:30
-
10K
6.21 mi11:19:2853:108:3326:44
8:36
+0:06
15K
9.32 mi11:47:031:20:458:4027:35
8:53
+0:17
20K
12.43 mi12:15:001:48:428:4527:57
9:00
+0:07
Half
13.11 mi12:20:551:54:378:455:55
8:40
-0:20
25K
15.53 mi12:42:392:16:218:4721:44
8:58
+0:18
30K
18.64 mi13:12:002:45:428:5329:21
9:27
+0:29
20M
20.00 mi13:25:072:58:498:5613:07
9:39
+0:12
21M
21.00 mi13:35:423:09:249:0110:35
10:35
+0:56
35K
21.75 mi13:42:333:16:159:016:51
9:09
-1:26
23M
23.00 mi13:54:293:28:119:0311:56
9:32
+0:23
24M
24.00 mi14:04:303:38:129:0610:01
10:01
+0:29
40K
24.85 mi14:13:003:46:429:078:30
9:56
-0:05
25.2M
25.20 mi14:16:323:50:149:083:32
10:15
+0:19
Finish
26.22 mi14:24:443:58:269:068:12
8:03
-2:12

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

8:03 /mi

Average Pace

9:06 /mi

Slowest Pace

10:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:07:17

28% of race

Time at Steady Pace

1:53:28

48% of race

Time at Slower Pace

57:41

24% of race

Average Pace: 9:06 /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 mi10:52:4426:268:3026:26
8:30
#17619
10K
6.21 mi11:19:2853:108:3326:44
8:36
#18238
15K
9.32 mi11:47:031:20:458:4027:35
8:53
#18833
20K
12.43 mi12:15:001:48:428:4527:57
9:00
#19051
Half
13.11 mi12:20:551:54:378:455:55
8:40
#19044
25K
15.53 mi12:42:392:16:218:4721:44
8:58
#18986
30K
18.64 mi13:12:002:45:428:5329:21
9:27
#19047
20M
20.00 mi13:25:072:58:498:5613:07
9:39
#19082
21M
21.00 mi13:35:423:09:249:0110:35
10:35
#19135
35K
21.75 mi13:42:333:16:159:016:51
9:09
#19123
23M
23.00 mi13:54:293:28:119:0311:56
9:32
#19090
24M
24.00 mi14:04:303:38:129:0610:01
10:01
#19191
40K
24.85 mi14:13:003:46:429:078:30
9:56
#19232
25.2M
25.20 mi14:16:323:50:149:083:32
10:15
#19223
Finish
26.22 mi14:24:443:58:269:068:12
8:03
#19029
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi176196332633219935(Top 75%)7647(Top 67%)7647(Top 157%)
10K6.21 mi3.10 mi18238-6196662-3306662-33018879(Top 71%)7012(Top 61%)7012(Top 144%)
15K9.32 mi3.11 mi18833-5957025-3637025-36319935(Top 75%)7647(Top 67%)7647(Top 157%)
20K12.43 mi3.11 mi19051-2187149-1247149-12419690(Top 74%)7491(Top 66%)7491(Top 153%)
Half13.11 mi0.68 mi19044+77148+17148+118833(Top 71%)6990(Top 61%)6990(Top 143%)
25K15.53 mi2.42 mi18986+587116+327116+3218794(Top 71%)7012(Top 61%)7012(Top 144%)
30K18.64 mi3.11 mi19047-617164-487164-4819245(Top 72%)7327(Top 64%)7327(Top 150%)
20M20.00 mi1.36 mi19082-357198-347198-3419404(Top 73%)7517(Top 66%)7517(Top 154%)
21M21.00 mi1.00 mi19135-537242-447242-4419857(Top 75%)7847(Top 69%)7847(Top 161%)
35K21.75 mi0.75 mi19123+127243-17243-118596(Top 70%)7165(Top 63%)7165(Top 147%)
23M23.00 mi1.25 mi19090+337235+87235+818460(Top 69%)7112(Top 62%)7112(Top 146%)
24M24.00 mi1.00 mi19191-1017299-647299-6420830(Top 78%)8446(Top 74%)8446(Top 173%)
40K24.85 mi0.85 mi19232-417329-307329-3019819(Top 74%)7954(Top 70%)7954(Top 163%)
25.2M25.20 mi0.35 mi19223+97328+17328+118322(Top 69%)7131(Top 62%)7131(Top 146%)
Finish26.22 mi1.02 mi19029+1947227+1017227+10112496(Top 47%)3973(Top 35%)3973(Top 81%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21stories
+97ft-345ft

Overall

19935

Females

7647

F18-39

7647

5K→10K

3.1 - 6.2 mi

Top 71%
×5stories
+79ft-138ft

Overall

18879

Females

7012

F18-39

7012

10K→15K

6.2 - 9.3 mi

Top 75%
×3stories
+67ft-78ft

Overall

19935

Females

7647

F18-39

7647

15K→20K

9.3 - 12.4 mi

Top 74%
×5stories
+106ft-86ft

Overall

19690

Females

7491

F18-39

7491

20K→Half

12.4 - 13.1 mi

Top 71%
×2stories
+19ft-37ft

Overall

18833

Females

6990

F18-39

6990

Half→25K

13.1 - 15.5 mi

Top 71%
×4stories
+66ft-88ft

Overall

18794

Females

7012

F18-39

7012

25K→30K

15.5 - 18.6 mi

Top 72%
×9stories
+181ft-148ft

Overall

19245

Females

7327

F18-39

7327

30K→20M

18.6 - 20.0 mi

Top 73%
×5stories
+64ft-50ft

Overall

19404

Females

7517

F18-39

7517

20M→21M

20.0 - 21.0 mi

Top 75%
×8stories
+106ft-24ft

Overall

19857

Females

7847

F18-39

7847

21M→35K

21.0 - 21.8 mi

Top 70%
×7stories
+17ft-86ft

Overall

18596

Females

7165

F18-39

7165

35K→23M

21.8 - 23.0 mi

Top 69%
×5stories
+23ft-63ft

Overall

18460

Females

7112

F18-39

7112

23M→24M

23.0 - 24.0 mi

Top 78%
×6stories
+12ft-82ft

Overall

20830

Females

8446

F18-39

8446

24M→40K

24.0 - 24.9 mi

Top 74%
×1story
+6ft-20ft

Overall

19819

Females

7954

F18-39

7954

40K→25.2M

24.9 - 25.2 mi

Top 69%
×1story
+13ft-16ft

Overall

18322

Females

7131

F18-39

7131

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2stories
+22ft-21ft

Overall

12496

Females

3973

F18-39

3973

Passing Analysis

Category:
Athletes Passed
1143
Passed By
2553
Net Change
-1410
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17619
5K → 10K102721-619#17619#18238
10K → 15K50645-595#18238#18833
15K → 20K95313-218#18833#19051
20K → Half3124+7#19051#19044
Half → 25K14890+58#19044#18986
25K → 30K148209-61#18986#19047
30K → 20M75110-35#19047#19082
20M → 21M59112-53#19082#19135
21M → 35K4432+12#19135#19123
35K → 23M9057+33#19123#19090
23M → 24M34135-101#19090#19191
24M → 40K4586-41#19191#19232
40K → 25.2M2415+9#19232#19223
25.2M → Finish1984+194#19223#19029
TOTALS11432553-1410
📊

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