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BOSTON MARATHON 2023

Alexandra Skupek

Bib: 18924•F

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0:00
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Overall
#0 / 26622
Top 42%
Gender (Female)
#0 / 11423
Top 23%
Age Group (F18-39)
#0 / 4884
Top 39%
Race Day Weather
49°/39°F
light intensity drizzle

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
23:45
Rank: #10982
Start → 5K
23:45 | 7:39/mi
10K· 6.21 mi
47:37
Rank: #11464 (-482)
5K → 10K
23:52 | 7:41/mi
15K· 9.32 mi
1:11:45
Rank: #11765 (-301)
10K → 15K
24:08 | 7:46/mi
20K· 12.43 mi
1:36:12
Rank: #11888 (-123)
15K → 20K
24:27 | 7:52/mi
Half· 13.11 mi
1:41:26
Rank: #11876 (+12)
20K → Half
5:14 | 7:40/mi
25K· 15.53 mi
2:00:40
Rank: #11885 (-9)
Half → 25K
19:14 | 7:56/mi
30K· 18.64 mi
2:25:24
Rank: #11611 (+274)
25K → 30K
24:44 | 7:58/mi
20M
2:36:14
Rank: #11466 (+145)
30K → 20M
10:50 | 7:58/mi
21M
2:44:49
Rank: #11411 (+55)
20M → 21M
8:35 | 8:35/mi
35K· 21.75 mi
2:50:30
Rank: #11312 (+99)
21M → 35K
5:41 | 7:36/mi
23M
3:00:27
Rank: #11172 (+140)
35K → 23M
9:57 | 7:57/mi
24M
3:08:22
Rank: #11147 (+25)
23M → 24M
7:55 | 7:55/mi
40K· 24.85 mi
3:15:28
Rank: #11157 (-10)
24M → 40K
7:06 | 8:18/mi
25.2M
3:18:36
Rank: #11181 (-24)
40K → 25.2M
3:08 | 9:05/mi
Finish· 26.22 mi
3:26:35
Rank: #11151 (+30)
25.2M → Finish
7:59 | 7:50/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.11 mi
Time1:41:26
Pace7:44 /mi
2nd Half
Distance13.11 mi
Time1:45:09
Pace8:01 /mi
📊Positive Split: 3.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:5323:457:3923:45
7:39
-
10K
6.21 mi11:38:4547:377:4023:52
7:41
+0:02
15K
9.32 mi12:02:531:11:457:4224:08
7:46
+0:05
20K
12.43 mi12:27:201:36:127:4424:27
7:52
+0:06
Half
13.11 mi12:32:341:41:267:445:14
7:40
-0:12
25K
15.53 mi12:51:482:00:407:4619:14
7:56
+0:16
30K
18.64 mi13:16:322:25:247:4824:44
7:58
+0:02
20M
20.00 mi13:27:222:36:147:4910:50
7:58
0:00
21M
21.00 mi13:35:572:44:497:518:35
8:35
+0:37
35K
21.75 mi13:41:382:50:307:505:41
7:36
-0:59
23M
23.00 mi13:51:353:00:277:519:57
7:57
+0:21
24M
24.00 mi13:59:303:08:227:517:55
7:55
-0:02
40K
24.85 mi14:06:363:15:287:527:06
8:18
+0:23
25.2M
25.20 mi14:09:443:18:367:533:08
9:05
+0:47
Finish
26.22 mi14:17:433:26:357:537:59
7:50
-1:15

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

7:36 /mi

Average Pace

7:53 /mi

Slowest Pace

9:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

3:14:52

94% of race

Time at Steady Pace

8:35

4% of race

Time at Slower Pace

3:08

2% of race

Average Pace: 7:53 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:14:5323:457:3923:45
7:39
#10982
10K
6.21 mi11:38:4547:377:4023:52
7:41
#11464
15K
9.32 mi12:02:531:11:457:4224:08
7:46
#11765
20K
12.43 mi12:27:201:36:127:4424:27
7:52
#11888
Half
13.11 mi12:32:341:41:267:445:14
7:40
#11876
25K
15.53 mi12:51:482:00:407:4619:14
7:56
#11885
30K
18.64 mi13:16:322:25:247:4824:44
7:58
#11611
20M
20.00 mi13:27:222:36:147:4910:50
7:58
#11466
21M
21.00 mi13:35:572:44:497:518:35
8:35
#11411
35K
21.75 mi13:41:382:50:307:505:41
7:36
#11312
23M
23.00 mi13:51:353:00:277:519:57
7:57
#11172
24M
24.00 mi13:59:303:08:227:517:55
7:55
#11147
40K
24.85 mi14:06:363:15:287:527:06
8:18
#11157
25.2M
25.20 mi14:09:443:18:367:533:08
9:05
#11181
Finish
26.22 mi14:17:433:26:357:537:59
7:50
#11151
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi109822319231912453(Top 47%)3158(Top 28%)3158(Top 65%)
10K6.21 mi3.10 mi11464-4822584-2652584-26512081(Top 45%)2915(Top 26%)2915(Top 60%)
15K9.32 mi3.11 mi11765-3012765-1812765-18112453(Top 47%)3158(Top 28%)3158(Top 65%)
20K12.43 mi3.11 mi11888-1232851-862851-8612338(Top 46%)3154(Top 28%)3154(Top 65%)
Half13.11 mi0.68 mi11876+122843+82843+811679(Top 44%)2723(Top 24%)2723(Top 56%)
25K15.53 mi2.42 mi11885-92866-232866-2312168(Top 46%)3170(Top 28%)3170(Top 65%)
30K18.64 mi3.11 mi11611+2742756+1102756+11010593(Top 40%)2445(Top 21%)2445(Top 50%)
20M20.00 mi1.36 mi11466+1452697+592697+5910103(Top 38%)2285(Top 20%)2285(Top 47%)
21M21.00 mi1.00 mi11411+552676+212676+2110982(Top 41%)2855(Top 25%)2855(Top 58%)
35K21.75 mi0.75 mi11312+992634+422634+429317(Top 35%)2070(Top 18%)2070(Top 42%)
23M23.00 mi1.25 mi11172+1402588+462588+469426(Top 35%)2235(Top 20%)2235(Top 46%)
24M24.00 mi1.00 mi11147+252602-142602-1410677(Top 40%)2921(Top 26%)2921(Top 60%)
40K24.85 mi0.85 mi11157-102628-262628-2612080(Top 45%)3705(Top 32%)3705(Top 76%)
25.2M25.20 mi0.35 mi11181-242658-302658-3013026(Top 49%)4224(Top 37%)4224(Top 86%)
Finish26.22 mi1.02 mi11151+302662-42662-410955(Top 41%)3163(Top 28%)3163(Top 65%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×21stories
+97ft-345ft

Overall

12453

Females

3158

F18-39

3158

5K→10K

3.1 - 6.2 mi

Top 45%
×5stories
+79ft-138ft

Overall

12081

Females

2915

F18-39

2915

10K→15K

6.2 - 9.3 mi

Top 47%
×3stories
+67ft-78ft

Overall

12453

Females

3158

F18-39

3158

15K→20K

9.3 - 12.4 mi

Top 46%
×5stories
+106ft-86ft

Overall

12338

Females

3154

F18-39

3154

20K→Half

12.4 - 13.1 mi

Top 44%
×2stories
+19ft-37ft

Overall

11679

Females

2723

F18-39

2723

Half→25K

13.1 - 15.5 mi

Top 46%
×4stories
+66ft-88ft

Overall

12168

Females

3170

F18-39

3170

25K→30K

15.5 - 18.6 mi

Top 40%
×9stories
+181ft-148ft

Overall

10593

Females

2445

F18-39

2445

30K→20M

18.6 - 20.0 mi

Top 38%
×5stories
+64ft-50ft

Overall

10103

Females

2285

F18-39

2285

20M→21M

20.0 - 21.0 mi

Top 41%
×8stories
+106ft-24ft

Overall

10982

Females

2855

F18-39

2855

21M→35K

21.0 - 21.8 mi

Top 35%
×7stories
+17ft-86ft

Overall

9317

Females

2070

F18-39

2070

35K→23M

21.8 - 23.0 mi

Top 35%
×5stories
+23ft-63ft

Overall

9426

Females

2235

F18-39

2235

23M→24M

23.0 - 24.0 mi

Top 40%
×6stories
+12ft-82ft

Overall

10677

Females

2921

F18-39

2921

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

12080

Females

3705

F18-39

3705

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

13026

Females

4224

F18-39

4224

25.2M→Finish

25.2 - 26.2 mi

Top 41%
×2stories
+22ft-21ft

Overall

10955

Females

3163

F18-39

3163

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1671
Passed By
1840
Net Change
-169
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10982
5K → 10K135617-482#10982#11464
10K → 15K89390-301#11464#11765
15K → 20K115238-123#11765#11888
20K → Half3725+12#11888#11876
Half → 25K138147-9#11876#11885
25K → 30K33359+274#11885#11611
30K → 20M17025+145#11611#11466
20M → 21M12267+55#11466#11411
21M → 35K11314+99#11411#11312
35K → 23M16020+140#11312#11172
23M → 24M9166+25#11172#11147
24M → 40K5161-10#11147#11157
40K → 25.2M3054-24#11157#11181
25.2M → Finish8757+30#11181#11151
TOTALS16711840-169
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing