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BOSTON MARATHON 2023

Barbara Prejean Margulis

Bib: 24012•F

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F60-64)
#0 / 527
Top 19%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:32
Rank: #19813
Start → 5K
27:32 | 8:52/mi
10K· 6.21 mi
55:07
Rank: #20039 (-226)
5K → 10K
27:35 | 8:53/mi
15K· 9.32 mi
1:22:44
Rank: #20013 (+26)
10K → 15K
27:37 | 8:53/mi
20K· 12.43 mi
1:50:11
Rank: #19673 (+340)
15K → 20K
27:27 | 8:50/mi
Half· 13.11 mi
1:56:06
Rank: #19636 (+37)
20K → Half
5:55 | 8:40/mi
25K· 15.53 mi
2:17:51
Rank: #19486 (+150)
Half → 25K
21:45 | 8:58/mi
30K· 18.64 mi
2:46:07
Rank: #19165 (+321)
25K → 30K
28:16 | 9:06/mi
20M
2:58:40
Rank: #19044 (+121)
30K → 20M
12:33 | 9:14/mi
21M
3:08:24
Rank: #18921 (+123)
20M → 21M
9:44 | 9:44/mi
35K· 21.75 mi
3:14:42
Rank: #18772 (+149)
21M → 35K
6:18 | 8:25/mi
23M
3:25:42
Rank: #18541 (+231)
35K → 23M
11:00 | 8:47/mi
24M
3:34:08
Rank: #18361 (+180)
23M → 24M
8:26 | 8:26/mi
40K· 24.85 mi
3:41:36
Rank: #18235 (+126)
24M → 40K
7:28 | 8:44/mi
25.2M
3:44:58
Rank: #18211 (+24)
40K → 25.2M
3:22 | 9:46/mi
Finish· 26.22 mi
3:53:42
Rank: #18128 (+83)
25.2M → Finish
8:44 | 8:34/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:06
Pace8:51 /mi
2nd Half
Distance13.11 mi
Time1:57:36
Pace8:58 /mi
📊Positive Split: 1.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:42:3527:328:5227:32
8:52
-
10K
6.21 mi12:10:1055:078:5227:35
8:53
+0:01
15K
9.32 mi12:37:471:22:448:5327:37
8:53
0:00
20K
12.43 mi13:05:141:50:118:5227:27
8:50
-0:03
Half
13.11 mi13:11:091:56:068:515:55
8:40
-0:10
25K
15.53 mi13:32:542:17:518:5221:45
8:58
+0:18
30K
18.64 mi14:01:102:46:078:5528:16
9:06
+0:08
20M
20.00 mi14:13:432:58:408:5612:33
9:14
+0:08
21M
21.00 mi14:23:273:08:248:589:44
9:44
+0:30
35K
21.75 mi14:29:453:14:428:576:18
8:25
-1:19
23M
23.00 mi14:40:453:25:428:5711:00
8:47
+0:22
24M
24.00 mi14:49:113:34:088:558:26
8:26
-0:21
40K
24.85 mi14:56:393:41:368:557:28
8:44
+0:18
25.2M
25.20 mi15:00:013:44:588:563:22
9:46
+1:02
Finish
26.22 mi15:08:453:53:428:558:44
8:34
-1:12

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

8:25 /mi

Average Pace

8:55 /mi

Slowest Pace

9:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:40:36

94% of race

Time at Steady Pace

13:06

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:55 /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 mi11:42:3527:328:5227:32
8:52
#19813
10K
6.21 mi12:10:1055:078:5227:35
8:53
#20039
15K
9.32 mi12:37:471:22:448:5327:37
8:53
#20013
20K
12.43 mi13:05:141:50:118:5227:27
8:50
#19673
Half
13.11 mi13:11:091:56:068:515:55
8:40
#19636
25K
15.53 mi13:32:542:17:518:5221:45
8:58
#19486
30K
18.64 mi14:01:102:46:078:5528:16
9:06
#19165
20M
20.00 mi14:13:432:58:408:5612:33
9:14
#19044
21M
21.00 mi14:23:273:08:248:589:44
9:44
#18921
35K
21.75 mi14:29:453:14:428:576:18
8:25
#18772
23M
23.00 mi14:40:453:25:428:5711:00
8:47
#18541
24M
24.00 mi14:49:113:34:088:558:26
8:26
#18361
40K
24.85 mi14:56:393:41:368:557:28
8:44
#18235
25.2M
25.20 mi15:00:013:44:588:563:22
9:46
#18211
Finish
26.22 mi15:08:453:53:428:558:44
8:34
#18128
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi198137694769419988(Top 75%)7674(Top 67%)7674(Top 1456%)
10K6.21 mi3.10 mi20039-2267789-957789-9520331(Top 76%)7885(Top 69%)7885(Top 1496%)
15K9.32 mi3.11 mi20013+267747+427747+4219988(Top 75%)7674(Top 67%)7674(Top 1456%)
20K12.43 mi3.11 mi19673+3407527+2207527+22018862(Top 71%)7004(Top 61%)7004(Top 1329%)
Half13.11 mi0.68 mi19636+377503+247503+2418809(Top 71%)6966(Top 61%)6966(Top 1322%)
25K15.53 mi2.42 mi19486+1507410+937410+9318821(Top 71%)7023(Top 61%)7023(Top 1333%)
30K18.64 mi3.11 mi19165+3217237+1737237+17317687(Top 66%)6458(Top 57%)6458(Top 1225%)
20M20.00 mi1.36 mi19044+1217181+567181+5617741(Top 67%)6605(Top 58%)6605(Top 1253%)
21M21.00 mi1.00 mi18921+1237119+627119+6217005(Top 64%)6198(Top 54%)6198(Top 1176%)
35K21.75 mi0.75 mi18772+1497040+797040+7914918(Top 56%)5073(Top 44%)5073(Top 963%)
23M23.00 mi1.25 mi18541+2316918+1226918+12214953(Top 56%)5153(Top 45%)5153(Top 978%)
24M24.00 mi1.00 mi18361+1806832+866832+8614141(Top 53%)4768(Top 42%)4768(Top 905%)
40K24.85 mi0.85 mi18235+1266776+566776+5614763(Top 55%)5176(Top 45%)5176(Top 982%)
25.2M25.20 mi0.35 mi18211+246767+96767+916435(Top 62%)6129(Top 54%)6129(Top 1163%)
Finish26.22 mi1.02 mi18128+836726+416726+4115860(Top 60%)5739(Top 50%)5739(Top 1089%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21stories
+97ft-345ft

Overall

19988

Females

7674

F60-64

7674

5K→10K

3.1 - 6.2 mi

Top 76%
×5stories
+79ft-138ft

Overall

20331

Females

7885

F60-64

7885

10K→15K

6.2 - 9.3 mi

Top 75%
×3stories
+67ft-78ft

Overall

19988

Females

7674

F60-64

7674

15K→20K

9.3 - 12.4 mi

Top 71%
×5stories
+106ft-86ft

Overall

18862

Females

7004

F60-64

7004

20K→Half

12.4 - 13.1 mi

Top 71%
×2stories
+19ft-37ft

Overall

18809

Females

6966

F60-64

6966

Half→25K

13.1 - 15.5 mi

Top 71%
×4stories
+66ft-88ft

Overall

18821

Females

7023

F60-64

7023

25K→30K

15.5 - 18.6 mi

Top 66%
×9stories
+181ft-148ft

Overall

17687

Females

6458

F60-64

6458

30K→20M

18.6 - 20.0 mi

Top 67%
×5stories
+64ft-50ft

Overall

17741

Females

6605

F60-64

6605

20M→21M

20.0 - 21.0 mi

Top 64%
×8stories
+106ft-24ft

Overall

17005

Females

6198

F60-64

6198

21M→35K

21.0 - 21.8 mi

Top 56%
×7stories
+17ft-86ft

Overall

14918

Females

5073

F60-64

5073

35K→23M

21.8 - 23.0 mi

Top 56%
×5stories
+23ft-63ft

Overall

14953

Females

5153

F60-64

5153

23M→24M

23.0 - 24.0 mi

Top 53%
×6stories
+12ft-82ft

Overall

14141

Females

4768

F60-64

4768

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

14763

Females

5176

F60-64

5176

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

16435

Females

6129

F60-64

6129

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2stories
+22ft-21ft

Overall

15860

Females

5739

F60-64

5739

Passing Analysis

Category:
Athletes Passed
2529
Passed By
844
Net Change
+1685
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19813
5K → 10K208434-226#19813#20039
10K → 15K199173+26#20039#20013
15K → 20K37838+340#20013#19673
20K → Half5417+37#19673#19636
Half → 25K19343+150#19636#19486
25K → 30K36039+321#19486#19165
30K → 20M15130+121#19165#19044
20M → 21M14421+123#19044#18921
21M → 35K1523+149#18921#18772
35K → 23M2343+231#18772#18541
23M → 24M1822+180#18541#18361
24M → 40K1337+126#18361#18235
40K → 25.2M3915+24#18235#18211
25.2M → Finish10219+83#18211#18128
TOTALS2529844+1685
📊

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