Boston Marathon logo
BOSTON MARATHON 2023

Mallory Sample

Bib: 17246•F

TX

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 37%
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
24:47
Rank: #13866
Start → 5K
24:47 | 7:59/mi
10K· 6.21 mi
49:18
Rank: #13860 (+6)
5K → 10K
24:31 | 7:53/mi
15K· 9.32 mi
1:13:51
Rank: #13766 (+94)
10K → 15K
24:33 | 7:54/mi
20K· 12.43 mi
1:38:35
Rank: #13571 (+195)
15K → 20K
24:44 | 7:58/mi
Half· 13.11 mi
1:44:02
Rank: #13602 (-31)
20K → Half
5:27 | 7:59/mi
25K· 15.53 mi
2:03:26
Rank: #13437 (+165)
Half → 25K
19:24 | 8:00/mi
30K· 18.64 mi
2:28:59
Rank: #13235 (+202)
25K → 30K
25:33 | 8:13/mi
20M
2:40:34
Rank: #13274 (-39)
30K → 20M
11:35 | 8:31/mi
21M
2:49:55
Rank: #13383 (-109)
20M → 21M
9:21 | 9:21/mi
35K· 21.75 mi
2:56:05
Rank: #13384 (-1)
21M → 35K
6:10 | 8:15/mi
23M
3:07:13
Rank: #13524 (-140)
35K → 23M
11:08 | 8:54/mi
24M
3:15:58
Rank: #13627 (-103)
23M → 24M
8:45 | 8:45/mi
40K· 24.85 mi
3:23:40
Rank: #13728 (-101)
24M → 40K
7:42 | 9:00/mi
25.2M
3:26:57
Rank: #13749 (-21)
40K → 25.2M
3:17 | 9:31/mi
Finish· 26.22 mi
3:35:55
Rank: #13881 (-132)
25.2M → Finish
8:58 | 8:48/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
Time1:44:02
Pace7:56 /mi
2nd Half
Distance13.11 mi
Time1:51:53
Pace8:32 /mi
📊Positive Split: 7.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:2624:477:5924:47
7:59
-
10K
6.21 mi11:39:5749:187:5624:31
7:53
-0:06
15K
9.32 mi12:04:301:13:517:5524:33
7:54
+0:01
20K
12.43 mi12:29:141:38:357:5624:44
7:58
+0:04
Half
13.11 mi12:34:411:44:027:565:27
7:59
+0:01
25K
15.53 mi12:54:052:03:267:5719:24
8:00
+0:01
30K
18.64 mi13:19:382:28:598:0025:33
8:13
+0:13
20M
20.00 mi13:31:132:40:348:0211:35
8:31
+0:18
21M
21.00 mi13:40:342:49:558:059:21
9:21
+0:50
35K
21.75 mi13:46:442:56:058:066:10
8:15
-1:06
23M
23.00 mi13:57:523:07:138:0811:08
8:54
+0:39
24M
24.00 mi14:06:373:15:588:108:45
8:45
-0:09
40K
24.85 mi14:14:193:23:408:127:42
9:00
+0:15
25.2M
25.20 mi14:17:363:26:578:133:17
9:31
+0:31
Finish
26.22 mi14:26:343:35:558:148:58
8:48
-0:43

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

7:53 /mi

Average Pace

8:14 /mi

Slowest Pace

9:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:02

48% of race

Time at Steady Pace

51:07

24% of race

Time at Slower Pace

1:00:46

28% of race

Average Pace: 8:14 /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 mi11:15:2624:477:5924:47
7:59
#13866
10K
6.21 mi11:39:5749:187:5624:31
7:53
#13860
15K
9.32 mi12:04:301:13:517:5524:33
7:54
#13766
20K
12.43 mi12:29:141:38:357:5624:44
7:58
#13571
Half
13.11 mi12:34:411:44:027:565:27
7:59
#13602
25K
15.53 mi12:54:052:03:267:5719:24
8:00
#13437
30K
18.64 mi13:19:382:28:598:0025:33
8:13
#13235
20M
20.00 mi13:31:132:40:348:0211:35
8:31
#13274
21M
21.00 mi13:40:342:49:558:059:21
9:21
#13383
35K
21.75 mi13:46:442:56:058:066:10
8:15
#13384
23M
23.00 mi13:57:523:07:138:0811:08
8:54
#13524
24M
24.00 mi14:06:373:15:588:108:45
8:45
#13627
40K
24.85 mi14:14:193:23:408:127:42
9:00
#13728
25.2M
25.20 mi14:17:363:26:578:133:17
9:31
#13749
Finish
26.22 mi14:26:343:35:558:148:58
8:48
#13881
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi138663942394213575(Top 51%)3822(Top 33%)3822(Top 78%)
10K6.21 mi3.10 mi13860+63956-143956-1413922(Top 52%)3998(Top 35%)3998(Top 82%)
15K9.32 mi3.11 mi13766+943923+333923+3313575(Top 51%)3822(Top 33%)3822(Top 78%)
20K12.43 mi3.11 mi13571+1953827+963827+9613122(Top 49%)3615(Top 32%)3615(Top 74%)
Half13.11 mi0.68 mi13602-313845-183845-1814329(Top 54%)4273(Top 37%)4273(Top 87%)
25K15.53 mi2.42 mi13437+1653766+793766+7912785(Top 48%)3519(Top 31%)3519(Top 72%)
30K18.64 mi3.11 mi13235+2023690+763690+7612513(Top 47%)3474(Top 30%)3474(Top 71%)
20M20.00 mi1.36 mi13274-393720-303720-3013784(Top 52%)4283(Top 37%)4283(Top 88%)
21M21.00 mi1.00 mi13383-1093805-853805-8515263(Top 57%)5200(Top 46%)5200(Top 106%)
35K21.75 mi0.75 mi13384-13822-173822-1713777(Top 52%)4440(Top 39%)4440(Top 91%)
23M23.00 mi1.25 mi13524-1403929-1073929-10715504(Top 58%)5449(Top 48%)5449(Top 112%)
24M24.00 mi1.00 mi13627-1034017-884017-8815944(Top 60%)5772(Top 51%)5772(Top 118%)
40K24.85 mi0.85 mi13728-1014099-824099-8216175(Top 61%)5946(Top 52%)5946(Top 122%)
25.2M25.20 mi0.35 mi13749-214123-244123-2415306(Top 57%)5467(Top 48%)5467(Top 112%)
Finish26.22 mi1.02 mi13881-1324221-984221-9817041(Top 64%)6393(Top 56%)6393(Top 131%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21stories
+97ft-345ft

Overall

13575

Females

3822

F18-39

3822

5K→10K

3.1 - 6.2 mi

Top 52%
×5stories
+79ft-138ft

Overall

13922

Females

3998

F18-39

3998

10K→15K

6.2 - 9.3 mi

Top 51%
×3stories
+67ft-78ft

Overall

13575

Females

3822

F18-39

3822

15K→20K

9.3 - 12.4 mi

Top 49%
×5stories
+106ft-86ft

Overall

13122

Females

3615

F18-39

3615

20K→Half

12.4 - 13.1 mi

Top 54%
×2stories
+19ft-37ft

Overall

14329

Females

4273

F18-39

4273

Half→25K

13.1 - 15.5 mi

Top 48%
×4stories
+66ft-88ft

Overall

12785

Females

3519

F18-39

3519

25K→30K

15.5 - 18.6 mi

Top 47%
×9stories
+181ft-148ft

Overall

12513

Females

3474

F18-39

3474

30K→20M

18.6 - 20.0 mi

Top 52%
×5stories
+64ft-50ft

Overall

13784

Females

4283

F18-39

4283

20M→21M

20.0 - 21.0 mi

Top 57%
×8stories
+106ft-24ft

Overall

15263

Females

5200

F18-39

5200

21M→35K

21.0 - 21.8 mi

Top 52%
×7stories
+17ft-86ft

Overall

13777

Females

4440

F18-39

4440

35K→23M

21.8 - 23.0 mi

Top 58%
×5stories
+23ft-63ft

Overall

15504

Females

5449

F18-39

5449

23M→24M

23.0 - 24.0 mi

Top 60%
×6stories
+12ft-82ft

Overall

15944

Females

5772

F18-39

5772

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

16175

Females

5946

F18-39

5946

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

15306

Females

5467

F18-39

5467

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2stories
+22ft-21ft

Overall

17041

Females

6393

F18-39

6393

Passing Analysis

Category:
Athletes Passed
1692
Passed By
1707
Net Change
-15
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13866
5K → 10K293287+6#13866#13860
10K → 15K228134+94#13860#13766
15K → 20K27378+195#13766#13571
20K → Half2354-31#13571#13602
Half → 25K21550+165#13602#13437
25K → 30K29391+202#13437#13235
30K → 20M76115-39#13235#13274
20M → 21M47156-109#13274#13383
21M → 35K5758-1#13383#13384
35K → 23M51191-140#13384#13524
23M → 24M41144-103#13524#13627
24M → 40K35136-101#13627#13728
40K → 25.2M2950-21#13728#13749
25.2M → Finish31163-132#13749#13881
TOTALS16921707-15
📊

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