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BOSTON MARATHON 2023

Samantha Collins

Bib: 17130•F

VT

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
23:46
Rank: #11045
Start → 5K
23:46 | 7:39/mi
10K· 6.21 mi
47:53
Rank: #11882 (-837)
5K → 10K
24:07 | 7:46/mi
15K· 9.32 mi
1:12:48
Rank: #12792 (-910)
10K → 15K
24:55 | 8:01/mi
20K· 12.43 mi
1:38:07
Rank: #13285 (-493)
15K → 20K
25:19 | 8:09/mi
Half· 13.11 mi
1:43:36
Rank: #13345 (-60)
20K → Half
5:29 | 8:02/mi
25K· 15.53 mi
2:03:52
Rank: #13669 (-324)
Half → 25K
20:16 | 8:22/mi
30K· 18.64 mi
2:31:23
Rank: #14263 (-594)
25K → 30K
27:31 | 8:51/mi
20M
2:48:25
Rank: #16042 (-1779)
30K → 20M
17:02 | 12:32/mi
21M
3:00:35
Rank: #16793 (-751)
20M → 21M
12:10 | 12:10/mi
35K· 21.75 mi
3:10:10
Rank: #17606 (-813)
21M → 35K
9:35 | 12:49/mi
23M
3:24:56
Rank: #18362 (-756)
35K → 23M
14:46 | 11:48/mi
24M
3:36:55
Rank: #18955 (-593)
23M → 24M
11:59 | 11:59/mi
40K· 24.85 mi
3:47:15
Rank: #19342 (-387)
24M → 40K
10:20 | 12:05/mi
25.2M
3:51:12
Rank: #19411 (-69)
40K → 25.2M
3:57 | 11:27/mi
Finish· 26.22 mi
4:01:26
Rank: #19531 (-120)
25.2M → Finish
10:14 | 10:03/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:36
Pace7:54 /mi
2nd Half
Distance13.11 mi
Time2:17:50
Pace10:31 /mi
📊Positive Split: 33.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:3323:467:3923:46
7:39
-
10K
6.21 mi11:38:4047:537:4224:07
7:46
+0:07
15K
9.32 mi12:03:351:12:487:4924:55
8:01
+0:15
20K
12.43 mi12:28:541:38:077:5425:19
8:09
+0:08
Half
13.11 mi12:34:231:43:367:545:29
8:02
-0:07
25K
15.53 mi12:54:392:03:527:5820:16
8:22
+0:20
30K
18.64 mi13:22:102:31:238:0727:31
8:51
+0:29
20M
20.00 mi13:39:122:48:258:2517:02
12:32
+3:41
21M
21.00 mi13:51:223:00:358:3612:10
12:10
-0:22
35K
21.75 mi14:00:573:10:108:459:35
12:49
+0:39
23M
23.00 mi14:15:433:24:568:5514:46
11:48
-1:01
24M
24.00 mi14:27:423:36:559:0211:59
11:59
+0:11
40K
24.85 mi14:38:023:47:159:0910:20
12:05
+0:06
25.2M
25.20 mi14:41:593:51:129:103:57
11:27
-0:38
Finish
26.22 mi14:52:134:01:269:1310:14
10:03
-1:24

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

7:39 /mi

Average Pace

9:13 /mi

Slowest Pace

12:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:31:23

63% of race

Time at Steady Pace

10:14

4% of race

Time at Slower Pace

1:19:49

33% of race

Average Pace: 9:12 /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 mi11:14:3323:467:3923:46
7:39
#11045
10K
6.21 mi11:38:4047:537:4224:07
7:46
#11882
15K
9.32 mi12:03:351:12:487:4924:55
8:01
#12792
20K
12.43 mi12:28:541:38:077:5425:19
8:09
#13285
Half
13.11 mi12:34:231:43:367:545:29
8:02
#13345
25K
15.53 mi12:54:392:03:527:5820:16
8:22
#13669
30K
18.64 mi13:22:102:31:238:0727:31
8:51
#14263
20M
20.00 mi13:39:122:48:258:2517:02
12:32
#16042
21M
21.00 mi13:51:223:00:358:3612:10
12:10
#16793
35K
21.75 mi14:00:573:10:108:459:35
12:49
#17606
23M
23.00 mi14:15:433:24:568:5514:46
11:48
#18362
24M
24.00 mi14:27:423:36:559:0211:59
11:59
#18955
40K
24.85 mi14:38:023:47:159:0910:20
12:05
#19342
25.2M
25.20 mi14:41:593:51:129:103:57
11:27
#19411
Finish
26.22 mi14:52:134:01:269:1310:14
10:03
#19531
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi110452358235814565(Top 55%)4429(Top 39%)4429(Top 91%)
10K6.21 mi3.10 mi11882-8372810-4522810-45212818(Top 48%)3330(Top 29%)3330(Top 68%)
15K9.32 mi3.11 mi12792-9103333-5233333-52314565(Top 55%)4429(Top 39%)4429(Top 91%)
20K12.43 mi3.11 mi13285-4933652-3193652-31914609(Top 55%)4473(Top 39%)4473(Top 92%)
Half13.11 mi0.68 mi13345-603693-413693-4114763(Top 55%)4559(Top 40%)4559(Top 93%)
25K15.53 mi2.42 mi13669-3243914-2213914-22115338(Top 58%)5046(Top 44%)5046(Top 103%)
30K18.64 mi3.11 mi14263-5944307-3934307-39316427(Top 62%)5745(Top 50%)5745(Top 118%)
20M20.00 mi1.36 mi16042-17795419-11125419-111224784(Top 93%)10490(Top 92%)10490(Top 215%)
21M21.00 mi1.00 mi16793-7515865-4465865-44622991(Top 86%)9544(Top 84%)9544(Top 195%)
35K21.75 mi0.75 mi17606-8136371-5066371-50625423(Top 95%)10875(Top 95%)10875(Top 223%)
23M23.00 mi1.25 mi18362-7566825-4546825-45423697(Top 89%)9951(Top 87%)9951(Top 204%)
24M24.00 mi1.00 mi18955-5937172-3477172-34724512(Top 92%)10433(Top 91%)10433(Top 214%)
40K24.85 mi0.85 mi19342-3877397-2257397-22523995(Top 90%)10177(Top 89%)10177(Top 208%)
25.2M25.20 mi0.35 mi19411-697436-397436-3921474(Top 81%)8840(Top 77%)8840(Top 181%)
Finish26.22 mi1.02 mi19531-1207522-867522-8621882(Top 82%)9053(Top 79%)9053(Top 185%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21stories
+97ft-345ft

Overall

14565

Females

4429

F18-39

4429

5K→10K

3.1 - 6.2 mi

Top 48%
×5stories
+79ft-138ft

Overall

12818

Females

3330

F18-39

3330

10K→15K

6.2 - 9.3 mi

Top 55%
×3stories
+67ft-78ft

Overall

14565

Females

4429

F18-39

4429

15K→20K

9.3 - 12.4 mi

Top 55%
×5stories
+106ft-86ft

Overall

14609

Females

4473

F18-39

4473

20K→Half

12.4 - 13.1 mi

Top 55%
×2stories
+19ft-37ft

Overall

14763

Females

4559

F18-39

4559

Half→25K

13.1 - 15.5 mi

Top 58%
×4stories
+66ft-88ft

Overall

15338

Females

5046

F18-39

5046

25K→30K

15.5 - 18.6 mi

Top 62%
×9stories
+181ft-148ft

Overall

16427

Females

5745

F18-39

5745

30K→20M

18.6 - 20.0 mi

Top 93%
×5stories
+64ft-50ft

Overall

24784

Females

10490

F18-39

10490

20M→21M

20.0 - 21.0 mi

Top 86%
×8stories
+106ft-24ft

Overall

22991

Females

9544

F18-39

9544

21M→35K

21.0 - 21.8 mi

Top 95%
×7stories
+17ft-86ft

Overall

25423

Females

10875

F18-39

10875

35K→23M

21.8 - 23.0 mi

Top 89%
×5stories
+23ft-63ft

Overall

23697

Females

9951

F18-39

9951

23M→24M

23.0 - 24.0 mi

Top 92%
×6stories
+12ft-82ft

Overall

24512

Females

10433

F18-39

10433

24M→40K

24.0 - 24.9 mi

Top 90%
×1story
+6ft-20ft

Overall

23995

Females

10177

F18-39

10177

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

21474

Females

8840

F18-39

8840

25.2M→Finish

25.2 - 26.2 mi

Top 82%
×2stories
+22ft-21ft

Overall

21882

Females

9053

F18-39

9053

Passing Analysis

Category:
Athletes Passed
365
Passed By
8851
Net Change
-8486
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11045
5K → 10K76913-837#11045#11882
10K → 15K26936-910#11882#12792
15K → 20K69562-493#12792#13285
20K → Half1878-60#13285#13345
Half → 25K57381-324#13345#13669
25K → 30K65659-594#13669#14263
30K → 20M11780-1779#14263#16042
20M → 21M5756-751#16042#16793
21M → 35K4817-813#16793#17606
35K → 23M8764-756#17606#18362
23M → 24M4597-593#18362#18955
24M → 40K9396-387#18955#19342
40K → 25.2M574-69#19342#19411
25.2M → Finish18138-120#19411#19531
TOTALS3658851-8486
📊

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