Boston Marathon logo
BOSTON MARATHON 2023

Mary Perkins

Bib: 26389•F

NC

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

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
9:23/mi
29:10
↑ 97↓ 3451.5%
10K· 6.21 mi
9:07/mi
57:30
↑ 79↓ 1380.4%
15K· 9.32 mi
8:59/mi
1:25:24
↑ 67↓ 78
20K· 12.43 mi
8:58/mi
1:53:16
↑ 106↓ 860.1%
Half· 13.11 mi
9:04/mi
1:59:27
↑ 19↓ 370.5%
25K· 15.53 mi
9:11/mi
2:21:42
↑ 66↓ 880.2%
30K· 18.64 mi
9:19/mi
2:50:39
↑ 181↓ 1480.2%
20M
9:44/mi
3:03:52
↑ 64↓ 500.2%
21M
10:13/mi
3:14:05
↑ 106↓ 241.6%
35K· 21.75 mi
9:13/mi
3:20:59
↑ 17↓ 861.7%
23M
9:36/mi
3:33:00
↑ 23↓ 630.6%
24M
9:34/mi
3:42:34
↓ 821.3%
40K· 24.85 mi
9:41/mi
3:50:51
↓ 200.3%
25.2M
10:06/mi
3:54:20
↑ 13↓ 160.2%
Finish· 26.22 mi
9:12/mi
4:03:43
↑ 22↓ 21

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
Time1:59:27
Pace9:07 /mi
2nd Half
Distance13.11 mi
Time2:04:16
Pace9:29 /mi
📊Positive Split: 4.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:46:0229:109:2329:10
9:23
-
10K
6.21 mi12:14:2257:309:1528:20
9:07
-0:16
15K
9.32 mi12:42:161:25:249:1027:54
8:59
-0:08
20K
12.43 mi13:10:081:53:169:0727:52
8:58
-0:01
Half
13.11 mi13:16:191:59:279:076:11
9:04
+0:06
25K
15.53 mi13:38:342:21:429:0722:15
9:11
+0:07
30K
18.64 mi14:07:312:50:399:0928:57
9:19
+0:08
20M
20.00 mi14:20:443:03:529:1213:13
9:44
+0:25
21M
21.00 mi14:30:573:14:059:1510:13
10:13
+0:29
35K
21.75 mi14:37:513:20:599:146:54
9:13
-1:00
23M
23.00 mi14:49:523:33:009:1612:01
9:36
+0:23
24M
24.00 mi14:59:263:42:349:169:34
9:34
-0:02
40K
24.85 mi15:07:433:50:519:178:17
9:41
+0:07
25.2M
25.20 mi15:11:123:54:209:183:29
10:06
+0:25
Finish
26.22 mi15:20:354:03:439:189:23
9:12
-0:54

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

8:58 /mi

Average Pace

9:18 /mi

Slowest Pace

10:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:50:01

94% of race

Time at Steady Pace

13:42

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:18 /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 mi11:46:0229:109:2329:10
9:23
#21784
10K
6.21 mi12:14:2257:309:1528:20
9:07
#21579
15K
9.32 mi12:42:161:25:249:1027:54
8:59
#21245
20K
12.43 mi13:10:081:53:169:0727:52
8:58
#20839
Half
13.11 mi13:16:191:59:279:076:11
9:04
#20832
25K
15.53 mi13:38:342:21:429:0722:15
9:11
#20649
30K
18.64 mi14:07:312:50:399:0928:57
9:19
#20297
20M
20.00 mi14:20:443:03:529:1213:13
9:44
#20227
21M
21.00 mi14:30:573:14:059:1510:13
10:13
#20131
35K
21.75 mi14:37:513:20:599:146:54
9:13
#20079
23M
23.00 mi14:49:523:33:009:1612:01
9:36
#19983
24M
24.00 mi14:59:263:42:349:169:34
9:34
#19973
40K
24.85 mi15:07:433:50:519:178:17
9:41
#19936
25.2M
25.20 mi15:11:123:54:209:183:29
10:06
#19904
Finish
26.22 mi15:20:354:03:439:189:23
9:12
#19863
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi217848779877920418(Top 77%)7909(Top 69%)7909(Top 162%)
10K6.21 mi3.10 mi21579+2058620+1598620+15921358(Top 80%)8473(Top 74%)8473(Top 173%)
15K9.32 mi3.11 mi21245+3348411+2098411+20920418(Top 77%)7909(Top 69%)7909(Top 162%)
20K12.43 mi3.11 mi20839+4068184+2278184+22719565(Top 73%)7415(Top 65%)7415(Top 152%)
Half13.11 mi0.68 mi20832+78178+68178+620713(Top 78%)8075(Top 71%)8075(Top 165%)
25K15.53 mi2.42 mi20649+1838070+1088070+10819744(Top 74%)7556(Top 66%)7556(Top 155%)
30K18.64 mi3.11 mi20297+3527897+1737897+17318720(Top 70%)7040(Top 62%)7040(Top 144%)
20M20.00 mi1.36 mi20227+707871+267871+2619639(Top 74%)7657(Top 67%)7657(Top 157%)
21M21.00 mi1.00 mi20131+967828+437828+4318785(Top 71%)7217(Top 63%)7217(Top 148%)
35K21.75 mi0.75 mi20079+527803+257803+2518872(Top 71%)7326(Top 64%)7326(Top 150%)
23M23.00 mi1.25 mi19983+967759+447759+4418745(Top 70%)7268(Top 64%)7268(Top 149%)
24M24.00 mi1.00 mi19973+107756+37756+319456(Top 73%)7695(Top 67%)7695(Top 158%)
40K24.85 mi0.85 mi19936+377744+127744+1219002(Top 71%)7498(Top 66%)7498(Top 154%)
25.2M25.20 mi0.35 mi19904+327726+187726+1817847(Top 67%)6897(Top 60%)6897(Top 141%)
Finish26.22 mi1.02 mi19863+417712+147712+1418980(Top 71%)7432(Top 65%)7432(Top 152%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21story building
+97ft-345ft

Overall

20418

Females

7909

F18-39

7909

5K→10K

3.1 - 6.2 mi

Top 80%
×5story building
+79ft-138ft

Overall

21358

Females

8473

F18-39

8473

10K→15K

6.2 - 9.3 mi

Top 77%
×3story building
+67ft-78ft

Overall

20418

Females

7909

F18-39

7909

15K→20K

9.3 - 12.4 mi

Top 73%
×5story building
+106ft-86ft

Overall

19565

Females

7415

F18-39

7415

20K→Half

12.4 - 13.1 mi

Top 78%
×2story building
+19ft-37ft

Overall

20713

Females

8075

F18-39

8075

Half→25K

13.1 - 15.5 mi

Top 74%
×4story building
+66ft-88ft

Overall

19744

Females

7556

F18-39

7556

25K→30K

15.5 - 18.6 mi

Top 70%
×9story building
+181ft-148ft

Overall

18720

Females

7040

F18-39

7040

30K→20M

18.6 - 20.0 mi

Top 74%
×5story building
+64ft-50ft

Overall

19639

Females

7657

F18-39

7657

20M→21M

20.0 - 21.0 mi

Top 71%
×8story building
+106ft-24ft

Overall

18785

Females

7217

F18-39

7217

21M→35K

21.0 - 21.8 mi

Top 71%
×7story building
+17ft-86ft

Overall

18872

Females

7326

F18-39

7326

35K→23M

21.8 - 23.0 mi

Top 70%
×5story building
+23ft-63ft

Overall

18745

Females

7268

F18-39

7268

23M→24M

23.0 - 24.0 mi

Top 73%
×6story building
+12ft-82ft

Overall

19456

Females

7695

F18-39

7695

24M→40K

24.0 - 24.9 mi

Top 71%
×1story
+6ft-20ft

Overall

19002

Females

7498

F18-39

7498

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

17847

Females

6897

F18-39

6897

25.2M→Finish

25.2 - 26.2 mi

Top 71%
×2story building
+22ft-21ft

Overall

18980

Females

7432

F18-39

7432

Passing Analysis

Category:
Athletes Passed
2461
Passed By
540
Net Change
+1921
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21784
5K → 10K387182+205#21784#21579
10K → 15K37945+334#21579#21245
15K → 20K42721+406#21245#20839
20K → Half3225+7#20839#20832
Half → 25K20825+183#20832#20649
25K → 30K36614+352#20649#20297
30K → 20M11343+70#20297#20227
20M → 21M12630+96#20227#20131
21M → 35K6816+52#20131#20079
35K → 23M12529+96#20079#19983
23M → 24M5949+10#19983#19973
24M → 40K6730+37#19973#19936
40K → 25.2M408+32#19936#19904
25.2M → Finish6423+41#19904#19863
TOTALS2461540+1921
📊

Passing Visuals

Category:
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

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing