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BOSTON MARATHON 2023

Caitlyn Siebenmorgen

Bib: 29189•F

MA

0:00
0:00
/ mi
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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
30:40
Rank: #23123
Start → 5K
30:40 | 9:52/mi
10K· 6.21 mi
1:01:16
Rank: #23307 (-184)
5K → 10K
30:36 | 9:51/mi
15K· 9.32 mi
1:31:13
Rank: #23118 (+189)
10K → 15K
29:57 | 9:38/mi
20K· 12.43 mi
2:02:05
Rank: #22997 (+121)
15K → 20K
30:52 | 9:56/mi
Half· 13.11 mi
2:09:01
Rank: #23043 (-46)
20K → Half
6:56 | 10:10/mi
25K· 15.53 mi
2:33:35
Rank: #22930 (+113)
Half → 25K
24:34 | 10:08/mi
30K· 18.64 mi
3:06:31
Rank: #22808 (+122)
25K → 30K
32:56 | 10:36/mi
20M
3:22:00
Rank: #22860 (-52)
30K → 20M
15:29 | 11:24/mi
21M
3:34:38
Rank: #22920 (-60)
20M → 21M
12:38 | 12:38/mi
35K· 21.75 mi
3:42:54
Rank: #22940 (-20)
21M → 35K
8:16 | 11:03/mi
23M
3:59:26
Rank: #23159 (-219)
35K → 23M
16:32 | 13:12/mi
24M
4:11:14
Rank: #23226 (-67)
23M → 24M
11:48 | 11:48/mi
40K· 24.85 mi
4:22:04
Rank: #23312 (-86)
24M → 40K
10:50 | 12:40/mi
25.2M
4:26:29
Rank: #23317 (-5)
40K → 25.2M
4:25 | 12:48/mi
Finish· 26.22 mi
4:36:53
Rank: #23283 (+34)
25.2M → Finish
10:24 | 10:12/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:09:01
Pace9:50 /mi
2nd Half
Distance13.11 mi
Time2:27:52
Pace11:17 /mi
📊Positive Split: 14.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:5330:409:5230:40
9:52
-
10K
6.21 mi12:19:291:01:169:5230:36
9:51
-0:01
15K
9.32 mi12:49:261:31:139:4729:57
9:38
-0:13
20K
12.43 mi13:20:182:02:059:4930:52
9:56
+0:18
Half
13.11 mi13:27:142:09:019:506:56
10:10
+0:14
25K
15.53 mi13:51:482:33:359:5324:34
10:08
-0:02
30K
18.64 mi14:24:443:06:3110:0032:56
10:36
+0:28
20M
20.00 mi14:40:133:22:0010:0615:29
11:24
+0:48
21M
21.00 mi14:52:513:34:3810:1312:38
12:38
+1:14
35K
21.75 mi15:01:073:42:5410:158:16
11:03
-1:35
23M
23.00 mi15:17:393:59:2610:2516:32
13:12
+2:09
24M
24.00 mi15:29:274:11:1410:2811:48
11:48
-1:24
40K
24.85 mi15:40:174:22:0410:3310:50
12:40
+0:52
25.2M
25.20 mi15:44:424:26:2910:344:25
12:48
+0:08
Finish
26.22 mi15:55:064:36:5310:3410:24
10:12
-2:36

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

9:38 /mi

Average Pace

10:34 /mi

Slowest Pace

13:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:02:05

44% of race

Time at Steady Pace

1:23:06

30% of race

Time at Slower Pace

1:11:42

26% of race

Average Pace: 10:34 /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 mi11:48:5330:409:5230:40
9:52
#23123
10K
6.21 mi12:19:291:01:169:5230:36
9:51
#23307
15K
9.32 mi12:49:261:31:139:4729:57
9:38
#23118
20K
12.43 mi13:20:182:02:059:4930:52
9:56
#22997
Half
13.11 mi13:27:142:09:019:506:56
10:10
#23043
25K
15.53 mi13:51:482:33:359:5324:34
10:08
#22930
30K
18.64 mi14:24:443:06:3110:0032:56
10:36
#22808
20M
20.00 mi14:40:133:22:0010:0615:29
11:24
#22860
21M
21.00 mi14:52:513:34:3810:1312:38
12:38
#22920
35K
21.75 mi15:01:073:42:5410:158:16
11:03
#22940
23M
23.00 mi15:17:393:59:2610:2516:32
13:12
#23159
24M
24.00 mi15:29:274:11:1410:2811:48
11:48
#23226
40K
24.85 mi15:40:174:22:0410:3310:50
12:40
#23312
25.2M
25.20 mi15:44:424:26:2910:344:25
12:48
#23317
Finish
26.22 mi15:55:064:36:5310:3410:24
10:12
#23283
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi231239460946022638(Top 85%)9151(Top 80%)9151(Top 187%)
10K6.21 mi3.10 mi23307-1849530-709530-7023379(Top 88%)9556(Top 84%)9556(Top 196%)
15K9.32 mi3.11 mi23118+1899413+1179413+11722638(Top 85%)9151(Top 80%)9151(Top 187%)
20K12.43 mi3.11 mi22997+1219345+689345+6822746(Top 85%)9217(Top 81%)9217(Top 189%)
Half13.11 mi0.68 mi23043-469370-259370-2523615(Top 89%)9689(Top 85%)9689(Top 198%)
25K15.53 mi2.42 mi22930+1139322+489322+4822490(Top 84%)9110(Top 80%)9110(Top 187%)
30K18.64 mi3.11 mi22808+1229286+369286+3622419(Top 84%)9137(Top 80%)9137(Top 187%)
20M20.00 mi1.36 mi22860-529326-409326-4023346(Top 88%)9706(Top 85%)9706(Top 199%)
21M21.00 mi1.00 mi22920-609367-419367-4123638(Top 89%)9884(Top 87%)9884(Top 202%)
35K21.75 mi0.75 mi22940-209384-179384-1723396(Top 88%)9814(Top 86%)9814(Top 201%)
23M23.00 mi1.25 mi23159-2199504-1209504-12025278(Top 95%)10779(Top 94%)10779(Top 221%)
24M24.00 mi1.00 mi23226-679546-429546-4224268(Top 91%)10309(Top 90%)10309(Top 211%)
40K24.85 mi0.85 mi23312-869602-569602-5624650(Top 93%)10495(Top 92%)10495(Top 215%)
25.2M25.20 mi0.35 mi23317-59610-89610-823732(Top 89%)10047(Top 88%)10047(Top 206%)
Finish26.22 mi1.02 mi23283+349602+89602+822327(Top 84%)9292(Top 81%)9292(Top 190%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21stories
+97ft-345ft

Overall

22638

Females

9151

F18-39

9151

5K→10K

3.1 - 6.2 mi

Top 88%
×5stories
+79ft-138ft

Overall

23379

Females

9556

F18-39

9556

10K→15K

6.2 - 9.3 mi

Top 85%
×3stories
+67ft-78ft

Overall

22638

Females

9151

F18-39

9151

15K→20K

9.3 - 12.4 mi

Top 85%
×5stories
+106ft-86ft

Overall

22746

Females

9217

F18-39

9217

20K→Half

12.4 - 13.1 mi

Top 89%
×2stories
+19ft-37ft

Overall

23615

Females

9689

F18-39

9689

Half→25K

13.1 - 15.5 mi

Top 84%
×4stories
+66ft-88ft

Overall

22490

Females

9110

F18-39

9110

25K→30K

15.5 - 18.6 mi

Top 84%
×9stories
+181ft-148ft

Overall

22419

Females

9137

F18-39

9137

30K→20M

18.6 - 20.0 mi

Top 88%
×5stories
+64ft-50ft

Overall

23346

Females

9706

F18-39

9706

20M→21M

20.0 - 21.0 mi

Top 89%
×8stories
+106ft-24ft

Overall

23638

Females

9884

F18-39

9884

21M→35K

21.0 - 21.8 mi

Top 88%
×7stories
+17ft-86ft

Overall

23396

Females

9814

F18-39

9814

35K→23M

21.8 - 23.0 mi

Top 95%
×5stories
+23ft-63ft

Overall

25278

Females

10779

F18-39

10779

23M→24M

23.0 - 24.0 mi

Top 91%
×6stories
+12ft-82ft

Overall

24268

Females

10309

F18-39

10309

24M→40K

24.0 - 24.9 mi

Top 93%
×1story
+6ft-20ft

Overall

24650

Females

10495

F18-39

10495

40K→25.2M

24.9 - 25.2 mi

Top 89%
×1story
+13ft-16ft

Overall

23732

Females

10047

F18-39

10047

25.2M→Finish

25.2 - 26.2 mi

Top 84%
×2stories
+22ft-21ft

Overall

22327

Females

9292

F18-39

9292

Passing Analysis

Category:
Athletes Passed
1141
Passed By
1301
Net Change
-160
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23123
5K → 10K136320-184#23123#23307
10K → 15K25970+189#23307#23118
15K → 20K19372+121#23118#22997
20K → Half1157-46#22997#23043
Half → 25K14633+113#23043#22930
25K → 30K18159+122#22930#22808
30K → 20M4395-52#22808#22860
20M → 21M2888-60#22860#22920
21M → 35K2343-20#22920#22940
35K → 23M14233-219#22940#23159
23M → 24M1481-67#23159#23226
24M → 40K19105-86#23226#23312
40K → 25.2M1823-5#23312#23317
25.2M → Finish5622+34#23317#23283
TOTALS11411301-160
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing