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BOSTON MARATHON 2023

Alison Masopust

Bib: 13320•F

CT

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 39%
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
23:13
Rank: #9412
Start → 5K
23:13 | 7:28/mi
10K· 6.21 mi
46:57
Rank: #10534 (-1122)
5K → 10K
23:44 | 7:38/mi
15K· 9.32 mi
1:10:31
Rank: #10635 (-101)
10K → 15K
23:34 | 7:35/mi
20K· 12.43 mi
1:34:47
Rank: #10940 (-305)
15K → 20K
24:16 | 7:49/mi
Half· 13.11 mi
1:40:07
Rank: #11019 (-79)
20K → Half
5:20 | 7:49/mi
25K· 15.53 mi
2:00:11
Rank: #11590 (-571)
Half → 25K
20:04 | 8:17/mi
30K· 18.64 mi
2:27:48
Rank: #12722 (-1132)
25K → 30K
27:37 | 8:53/mi
20M
2:40:10
Rank: #13109 (-387)
30K → 20M
12:22 | 9:06/mi
21M
2:49:38
Rank: #13282 (-173)
20M → 21M
9:28 | 9:28/mi
35K· 21.75 mi
2:56:27
Rank: #13514 (-232)
21M → 35K
6:49 | 9:07/mi
23M
3:08:18
Rank: #13865 (-351)
35K → 23M
11:51 | 9:28/mi
24M
3:17:10
Rank: #13982 (-117)
23M → 24M
8:52 | 8:52/mi
40K· 24.85 mi
3:25:05
Rank: #14144 (-162)
24M → 40K
7:55 | 9:16/mi
25.2M
3:28:27
Rank: #14188 (-44)
40K → 25.2M
3:22 | 9:46/mi
Finish· 26.22 mi
3:37:15
Rank: #14253 (-65)
25.2M → Finish
8:48 | 8:38/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:07
Pace7:38 /mi
2nd Half
Distance13.11 mi
Time1:57:08
Pace8:56 /mi
📊Positive Split: 17.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:1923:137:2823:13
7:28
-
10K
6.21 mi11:17:0346:577:3323:44
7:38
+0:10
15K
9.32 mi11:40:371:10:317:3423:34
7:35
-0:03
20K
12.43 mi12:04:531:34:477:3824:16
7:49
+0:14
Half
13.11 mi12:10:131:40:077:385:20
7:49
0:00
25K
15.53 mi12:30:172:00:117:4420:04
8:17
+0:28
30K
18.64 mi12:57:542:27:487:5627:37
8:53
+0:36
20M
20.00 mi13:10:162:40:108:0012:22
9:06
+0:13
21M
21.00 mi13:19:442:49:388:059:28
9:28
+0:22
35K
21.75 mi13:26:332:56:278:076:49
9:07
-0:21
23M
23.00 mi13:38:243:08:188:1111:51
9:28
+0:21
24M
24.00 mi13:47:163:17:108:138:52
8:52
-0:36
40K
24.85 mi13:55:113:25:058:157:55
9:16
+0:24
25.2M
25.20 mi13:58:333:28:278:163:22
9:46
+0:30
Finish
26.22 mi14:07:213:37:158:188:48
8:38
-1:08

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

7:28 /mi

Average Pace

8:18 /mi

Slowest Pace

9:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:00:11

55% of race

Time at Steady Pace

1:04:28

30% of race

Time at Slower Pace

32:36

15% of race

Average Pace: 8:17 /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 mi10:53:1923:137:2823:13
7:28
#9412
10K
6.21 mi11:17:0346:577:3323:44
7:38
#10534
15K
9.32 mi11:40:371:10:317:3423:34
7:35
#10635
20K
12.43 mi12:04:531:34:477:3824:16
7:49
#10940
Half
13.11 mi12:10:131:40:077:385:20
7:49
#11019
25K
15.53 mi12:30:172:00:117:4420:04
8:17
#11590
30K
18.64 mi12:57:542:27:487:5627:37
8:53
#12722
20M
20.00 mi13:10:162:40:108:0012:22
9:06
#13109
21M
21.00 mi13:19:442:49:388:059:28
9:28
#13282
35K
21.75 mi13:26:332:56:278:076:49
9:07
#13514
23M
23.00 mi13:38:243:08:188:1111:51
9:28
#13865
24M
24.00 mi13:47:163:17:108:138:52
8:52
#13982
40K
24.85 mi13:55:113:25:058:157:55
9:16
#14144
25.2M
25.20 mi13:58:333:28:278:163:22
9:46
#14188
Finish
26.22 mi14:07:213:37:158:188:48
8:38
#14253
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi94121590159010908(Top 41%)2294(Top 20%)2294(Top 47%)
10K6.21 mi3.10 mi10534-11222092-5022092-50211709(Top 44%)2709(Top 24%)2709(Top 55%)
15K9.32 mi3.11 mi10635-1012135-432135-4310908(Top 41%)2294(Top 20%)2294(Top 47%)
20K12.43 mi3.11 mi10940-3052306-1712306-17111852(Top 45%)2880(Top 25%)2880(Top 59%)
Half13.11 mi0.68 mi11019-792341-352341-3512971(Top 49%)3500(Top 31%)3500(Top 72%)
25K15.53 mi2.42 mi11590-5712692-3512692-35114797(Top 56%)4701(Top 41%)4701(Top 96%)
30K18.64 mi3.11 mi12722-11323386-6943386-69416590(Top 62%)5827(Top 51%)5827(Top 119%)
20M20.00 mi1.36 mi13109-3873633-2473633-24717058(Top 64%)6188(Top 54%)6188(Top 127%)
21M21.00 mi1.00 mi13282-1733743-1103743-11015810(Top 59%)5513(Top 48%)5513(Top 113%)
35K21.75 mi0.75 mi13514-2323894-1513894-15118385(Top 69%)7035(Top 62%)7035(Top 144%)
23M23.00 mi1.25 mi13865-3514141-2474141-24718189(Top 68%)6963(Top 61%)6963(Top 143%)
24M24.00 mi1.00 mi13982-1174242-1014242-10116588(Top 62%)6118(Top 54%)6118(Top 125%)
40K24.85 mi0.85 mi14144-1624360-1184360-11817346(Top 65%)6589(Top 58%)6589(Top 135%)
25.2M25.20 mi0.35 mi14188-444400-404400-4016383(Top 62%)6077(Top 53%)6077(Top 124%)
Finish26.22 mi1.02 mi14253-654460-604460-6016176(Top 61%)5918(Top 52%)5918(Top 121%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21stories
+97ft-345ft

Overall

10908

Females

2294

F18-39

2294

5K→10K

3.1 - 6.2 mi

Top 44%
×5stories
+79ft-138ft

Overall

11709

Females

2709

F18-39

2709

10K→15K

6.2 - 9.3 mi

Top 41%
×3stories
+67ft-78ft

Overall

10908

Females

2294

F18-39

2294

15K→20K

9.3 - 12.4 mi

Top 45%
×5stories
+106ft-86ft

Overall

11852

Females

2880

F18-39

2880

20K→Half

12.4 - 13.1 mi

Top 49%
×2stories
+19ft-37ft

Overall

12971

Females

3500

F18-39

3500

Half→25K

13.1 - 15.5 mi

Top 56%
×4stories
+66ft-88ft

Overall

14797

Females

4701

F18-39

4701

25K→30K

15.5 - 18.6 mi

Top 62%
×9stories
+181ft-148ft

Overall

16590

Females

5827

F18-39

5827

30K→20M

18.6 - 20.0 mi

Top 64%
×5stories
+64ft-50ft

Overall

17058

Females

6188

F18-39

6188

20M→21M

20.0 - 21.0 mi

Top 59%
×8stories
+106ft-24ft

Overall

15810

Females

5513

F18-39

5513

21M→35K

21.0 - 21.8 mi

Top 69%
×7stories
+17ft-86ft

Overall

18385

Females

7035

F18-39

7035

35K→23M

21.8 - 23.0 mi

Top 68%
×5stories
+23ft-63ft

Overall

18189

Females

6963

F18-39

6963

23M→24M

23.0 - 24.0 mi

Top 62%
×6stories
+12ft-82ft

Overall

16588

Females

6118

F18-39

6118

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

17346

Females

6589

F18-39

6589

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

16383

Females

6077

F18-39

6077

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2stories
+22ft-21ft

Overall

16176

Females

5918

F18-39

5918

Passing Analysis

Category:
Athletes Passed
573
Passed By
5413
Net Change
-4841
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9412
5K → 10K391160-1122#9412#10534
10K → 15K148249-101#10534#10635
15K → 20K80385-305#10635#10940
20K → Half685-79#10940#11019
Half → 25K26597-571#11019#11590
25K → 30K271159-1132#11590#12722
30K → 20M30417-387#12722#13109
20M → 21M43216-173#13109#13282
21M → 35K14246-232#13282#13514
35K → 23M27378-351#13514#13865
23M → 24M32149-117#13865#13982
24M → 40K37199-162#13982#14144
40K → 25.2M1559-44#14144#14188
25.2M → Finish49114-65#14188#14253
TOTALS5735413-4841
📊

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