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BOSTON MARATHON 2023

Cynthia Previdi

Bib: 31340•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F45-49)
#0 / 1817
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:58
Rank: #22512
Start → 5K
29:58 | 9:39/mi
10K· 6.21 mi
58:53
Rank: #22275 (+237)
5K → 10K
28:55 | 9:18/mi
15K· 9.32 mi
1:28:02
Rank: #22142 (+133)
10K → 15K
29:09 | 9:23/mi
20K· 12.43 mi
1:59:12
Rank: #22368 (-226)
15K → 20K
31:10 | 10:02/mi
Half· 13.11 mi
2:05:54
Rank: #22410 (-42)
20K → Half
6:42 | 9:49/mi
25K· 15.53 mi
2:30:54
Rank: #22511 (-101)
Half → 25K
25:00 | 10:19/mi
30K· 18.64 mi
3:05:26
Rank: #22691 (-180)
25K → 30K
34:32 | 11:07/mi
20M
3:20:44
Rank: #22719 (-28)
30K → 20M
15:18 | 11:16/mi
21M
3:32:35
Rank: #22714 (+5)
20M → 21M
11:51 | 11:51/mi
35K· 21.75 mi
3:40:45
Rank: #22727 (-13)
21M → 35K
8:10 | 10:55/mi
23M
3:55:41
Rank: #22811 (-84)
35K → 23M
14:56 | 11:56/mi
24M
4:07:24
Rank: #22862 (-51)
23M → 24M
11:43 | 11:43/mi
40K· 24.85 mi
4:17:59
Rank: #22948 (-86)
24M → 40K
10:35 | 12:23/mi
25.2M
4:22:17
Rank: #22948
40K → 25.2M
4:18 | 12:28/mi
Finish· 26.22 mi
4:32:39
Rank: #22935 (+13)
25.2M → Finish
10:22 | 10:10/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:05:54
Pace9:36 /mi
2nd Half
Distance13.11 mi
Time2:26:45
Pace11:12 /mi
📊Positive Split: 16.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:2829:589:3929:58
9:39
-
10K
6.21 mi12:19:2358:539:2928:55
9:18
-0:21
15K
9.32 mi12:48:321:28:029:2729:09
9:23
+0:05
20K
12.43 mi13:19:421:59:129:3631:10
10:02
+0:39
Half
13.11 mi13:26:242:05:549:366:42
9:49
-0:13
25K
15.53 mi13:51:242:30:549:4325:00
10:19
+0:30
30K
18.64 mi14:25:563:05:269:5734:32
11:07
+0:48
20M
20.00 mi14:41:143:20:4410:0215:18
11:16
+0:09
21M
21.00 mi14:53:053:32:3510:0711:51
11:51
+0:35
35K
21.75 mi15:01:153:40:4510:098:10
10:55
-0:56
23M
23.00 mi15:16:113:55:4110:1514:56
11:56
+1:01
24M
24.00 mi15:27:544:07:2410:1911:43
11:43
-0:13
40K
24.85 mi15:38:294:17:5910:2310:35
12:23
+0:40
25.2M
25.20 mi15:42:474:22:1710:244:18
12:28
+0:05
Finish
26.22 mi15:53:094:32:3910:2410:22
10:10
-2:18

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

9:18 /mi

Average Pace

10:24 /mi

Slowest Pace

12:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:41:16

59% of race

Time at Steady Pace

58:00

21% of race

Time at Slower Pace

53:23

20% of race

Average Pace: 10:24 /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 mi11:50:2829:589:3929:58
9:39
#22512
10K
6.21 mi12:19:2358:539:2928:55
9:18
#22275
15K
9.32 mi12:48:321:28:029:2729:09
9:23
#22142
20K
12.43 mi13:19:421:59:129:3631:10
10:02
#22368
Half
13.11 mi13:26:242:05:549:366:42
9:49
#22410
25K
15.53 mi13:51:242:30:549:4325:00
10:19
#22511
30K
18.64 mi14:25:563:05:269:5734:32
11:07
#22691
20M
20.00 mi14:41:143:20:4410:0215:18
11:16
#22719
21M
21.00 mi14:53:053:32:3510:0711:51
11:51
#22714
35K
21.75 mi15:01:153:40:4510:098:10
10:55
#22727
23M
23.00 mi15:16:113:55:4110:1514:56
11:56
#22811
24M
24.00 mi15:27:544:07:2410:1911:43
11:43
#22862
40K
24.85 mi15:38:294:17:5910:2310:35
12:23
#22948
25.2M
25.20 mi15:42:474:22:1710:244:18
12:28
#22948
Finish
26.22 mi15:53:094:32:3910:2410:22
10:10
#22935
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi225129142914221918(Top 82%)8746(Top 77%)8746(Top 481%)
10K6.21 mi3.10 mi22275+2378989+1538989+15321967(Top 83%)8806(Top 77%)8806(Top 485%)
15K9.32 mi3.11 mi22142+1338909+808909+8021918(Top 82%)8746(Top 77%)8746(Top 481%)
20K12.43 mi3.11 mi22368-2269014-1059014-10522986(Top 86%)9346(Top 82%)9346(Top 514%)
Half13.11 mi0.68 mi22410-429035-219035-2122939(Top 86%)9323(Top 82%)9323(Top 513%)
25K15.53 mi2.42 mi22511-1019112-779112-7722872(Top 86%)9314(Top 82%)9314(Top 513%)
30K18.64 mi3.11 mi22691-1809229-1179229-11723269(Top 87%)9606(Top 84%)9606(Top 529%)
20M20.00 mi1.36 mi22719-289253-249253-2423116(Top 87%)9578(Top 84%)9578(Top 527%)
21M21.00 mi1.00 mi22714+59258-59258-522504(Top 85%)9279(Top 81%)9279(Top 511%)
35K21.75 mi0.75 mi22727-139274-169274-1623160(Top 87%)9674(Top 85%)9674(Top 532%)
23M23.00 mi1.25 mi22811-849332-589332-5823896(Top 90%)10062(Top 88%)10062(Top 554%)
24M24.00 mi1.00 mi22862-519366-349366-3424160(Top 91%)10250(Top 90%)10250(Top 564%)
40K24.85 mi0.85 mi22948-869415-499415-4924316(Top 91%)10344(Top 91%)10344(Top 569%)
25.2M25.20 mi0.35 mi229489413+29413+223251(Top 87%)9797(Top 86%)9797(Top 539%)
Finish26.22 mi1.02 mi22935+139417-49417-422233(Top 84%)9250(Top 81%)9250(Top 509%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21stories
+97ft-345ft

Overall

21918

Females

8746

F45-49

8746

5K→10K

3.1 - 6.2 mi

Top 83%
×5stories
+79ft-138ft

Overall

21967

Females

8806

F45-49

8806

10K→15K

6.2 - 9.3 mi

Top 82%
×3stories
+67ft-78ft

Overall

21918

Females

8746

F45-49

8746

15K→20K

9.3 - 12.4 mi

Top 86%
×5stories
+106ft-86ft

Overall

22986

Females

9346

F45-49

9346

20K→Half

12.4 - 13.1 mi

Top 86%
×2stories
+19ft-37ft

Overall

22939

Females

9323

F45-49

9323

Half→25K

13.1 - 15.5 mi

Top 86%
×4stories
+66ft-88ft

Overall

22872

Females

9314

F45-49

9314

25K→30K

15.5 - 18.6 mi

Top 87%
×9stories
+181ft-148ft

Overall

23269

Females

9606

F45-49

9606

30K→20M

18.6 - 20.0 mi

Top 87%
×5stories
+64ft-50ft

Overall

23116

Females

9578

F45-49

9578

20M→21M

20.0 - 21.0 mi

Top 85%
×8stories
+106ft-24ft

Overall

22504

Females

9279

F45-49

9279

21M→35K

21.0 - 21.8 mi

Top 87%
×7stories
+17ft-86ft

Overall

23160

Females

9674

F45-49

9674

35K→23M

21.8 - 23.0 mi

Top 90%
×5stories
+23ft-63ft

Overall

23896

Females

10062

F45-49

10062

23M→24M

23.0 - 24.0 mi

Top 91%
×6stories
+12ft-82ft

Overall

24160

Females

10250

F45-49

10250

24M→40K

24.0 - 24.9 mi

Top 91%
×1story
+6ft-20ft

Overall

24316

Females

10344

F45-49

10344

40K→25.2M

24.9 - 25.2 mi

Top 87%
×1story
+13ft-16ft

Overall

23251

Females

9797

F45-49

9797

25.2M→Finish

25.2 - 26.2 mi

Top 84%
×2stories
+22ft-21ft

Overall

22233

Females

9250

F45-49

9250

Passing Analysis

Category:
Athletes Passed
1052
Passed By
1475
Net Change
-423
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22512
5K → 10K382145+237#22512#22275
10K → 15K235102+133#22275#22142
15K → 20K65291-226#22142#22368
20K → Half1052-42#22368#22410
Half → 25K70171-101#22410#22511
25K → 30K56236-180#22511#22691
30K → 20M4876-28#22691#22719
20M → 21M5146+5#22719#22714
21M → 35K2639-13#22714#22727
35K → 23M26110-84#22727#22811
23M → 24M1869-51#22811#22862
24M → 40K15101-86#22862#22948
40K → 25.2M11110#22948#22948
25.2M → Finish3926+13#22948#22935
TOTALS10521475-423
📊

Passing Visuals

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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing