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BOSTON MARATHON 2023

Cindy Perosa

Bib: 23379•F

PA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F55-59)
#0 / 815
Top 43%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:48/mi
27:21
↑ 97↓ 3451.5%
10K· 6.21 mi
8:38/mi
54:11
↑ 79↓ 1380.4%
15K· 9.32 mi
8:46/mi
1:21:24
↑ 67↓ 78
20K· 12.43 mi
8:54/mi
1:49:03
↑ 106↓ 860.1%
Half· 13.11 mi
8:39/mi
1:54:57
↑ 19↓ 370.5%
25K· 15.53 mi
9:06/mi
2:17:01
↑ 66↓ 880.2%
30K· 18.64 mi
9:23/mi
2:46:09
↑ 181↓ 1480.2%
20M
9:35/mi
2:59:11
↑ 64↓ 500.2%
21M
10:21/mi
3:09:32
↑ 106↓ 241.6%
35K· 21.75 mi
9:39/mi
3:16:45
↑ 17↓ 861.7%
23M
9:30/mi
3:28:39
↑ 23↓ 630.6%
24M
9:28/mi
3:38:07
↓ 821.3%
40K· 24.85 mi
9:37/mi
3:46:20
↓ 200.3%
25.2M
10:21/mi
3:49:54
↑ 13↓ 160.2%
Finish· 26.22 mi
9:36/mi
3:59:41
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:57
Pace8:46 /mi
2nd Half
Distance13.11 mi
Time2:04:44
Pace9:31 /mi
📊Positive Split: 8.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:3527:218:4827:21
8:48
-
10K
6.21 mi11:50:2554:118:4326:50
8:38
-0:10
15K
9.32 mi12:17:381:21:248:4427:13
8:46
+0:08
20K
12.43 mi12:45:171:49:038:4627:39
8:54
+0:08
Half
13.11 mi12:51:111:54:578:465:54
8:39
-0:15
25K
15.53 mi13:13:152:17:018:4922:04
9:06
+0:27
30K
18.64 mi13:42:232:46:098:5529:08
9:23
+0:17
20M
20.00 mi13:55:252:59:118:5813:02
9:35
+0:12
21M
21.00 mi14:05:463:09:329:0210:21
10:21
+0:46
35K
21.75 mi14:12:593:16:459:037:13
9:39
-0:42
23M
23.00 mi14:24:533:28:399:0411:54
9:30
-0:09
24M
24.00 mi14:34:213:38:079:059:28
9:28
-0:02
40K
24.85 mi14:42:343:46:209:068:13
9:37
+0:09
25.2M
25.20 mi14:46:083:49:549:073:34
10:21
+0:44
Finish
26.22 mi14:55:553:59:419:099:47
9:36
-0:45

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

8:38 /mi

Average Pace

9:09 /mi

Slowest Pace

10:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:55:37

73% of race

Time at Steady Pace

50:09

21% of race

Time at Slower Pace

13:55

6% of race

Average Pace: 9:08 /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 mi11:23:3527:218:4827:21
8:48
#19485
10K
6.21 mi11:50:2554:118:4326:50
8:38
#19231
15K
9.32 mi12:17:381:21:248:4427:13
8:46
#19230
20K
12.43 mi12:45:171:49:038:4627:39
8:54
#19203
Half
13.11 mi12:51:111:54:578:465:54
8:39
#19162
25K
15.53 mi13:13:152:17:018:4922:04
9:06
#19209
30K
18.64 mi13:42:232:46:098:5529:08
9:23
#19178
20M
20.00 mi13:55:252:59:118:5813:02
9:35
#19169
21M
21.00 mi14:05:463:09:329:0210:21
10:21
#19168
35K
21.75 mi14:12:593:16:459:037:13
9:39
#19231
23M
23.00 mi14:24:533:28:399:0411:54
9:30
#19178
24M
24.00 mi14:34:213:38:079:059:28
9:28
#19173
40K
24.85 mi14:42:343:46:209:068:13
9:37
#19173
25.2M
25.20 mi14:46:083:49:549:073:34
10:21
#19162
Finish
26.22 mi14:55:553:59:419:099:47
9:36
#19257
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi194857504750419310(Top 73%)7276(Top 64%)7276(Top 893%)
10K6.21 mi3.10 mi19231+2547297+2077297+20719070(Top 72%)7126(Top 62%)7126(Top 874%)
15K9.32 mi3.11 mi19230+17270+277270+2719310(Top 73%)7276(Top 64%)7276(Top 893%)
20K12.43 mi3.11 mi19203+277239+317239+3119215(Top 72%)7221(Top 63%)7221(Top 886%)
Half13.11 mi0.68 mi19162+417213+267213+2618683(Top 70%)6897(Top 60%)6897(Top 846%)
25K15.53 mi2.42 mi19209-477246-337246-3319423(Top 73%)7383(Top 65%)7383(Top 906%)
30K18.64 mi3.11 mi19178+317246724618942(Top 71%)7164(Top 63%)7164(Top 879%)
20M20.00 mi1.36 mi19169+97252-67252-619203(Top 72%)7400(Top 65%)7400(Top 908%)
21M21.00 mi1.00 mi19168+17263-117263-1119158(Top 72%)7438(Top 65%)7438(Top 913%)
35K21.75 mi0.75 mi19231-637305-427305-4220310(Top 76%)8110(Top 71%)8110(Top 995%)
23M23.00 mi1.25 mi19178+537283+227283+2218366(Top 69%)7058(Top 62%)7058(Top 866%)
24M24.00 mi1.00 mi19173+57289-67289-619113(Top 72%)7510(Top 66%)7510(Top 921%)
40K24.85 mi0.85 mi191737300-117300-1118748(Top 70%)7357(Top 64%)7357(Top 903%)
25.2M25.20 mi0.35 mi19162+117293+77293+718649(Top 70%)7311(Top 64%)7311(Top 897%)
Finish26.22 mi1.02 mi19257-957357-647357-6420483(Top 77%)8280(Top 72%)8280(Top 1016%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21story building
+97ft-345ft

Overall

19310

Females

7276

F55-59

7276

5K→10K

3.1 - 6.2 mi

Top 72%
×5story building
+79ft-138ft

Overall

19070

Females

7126

F55-59

7126

10K→15K

6.2 - 9.3 mi

Top 73%
×3story building
+67ft-78ft

Overall

19310

Females

7276

F55-59

7276

15K→20K

9.3 - 12.4 mi

Top 72%
×5story building
+106ft-86ft

Overall

19215

Females

7221

F55-59

7221

20K→Half

12.4 - 13.1 mi

Top 70%
×2story building
+19ft-37ft

Overall

18683

Females

6897

F55-59

6897

Half→25K

13.1 - 15.5 mi

Top 73%
×4story building
+66ft-88ft

Overall

19423

Females

7383

F55-59

7383

25K→30K

15.5 - 18.6 mi

Top 71%
×9story building
+181ft-148ft

Overall

18942

Females

7164

F55-59

7164

30K→20M

18.6 - 20.0 mi

Top 72%
×5story building
+64ft-50ft

Overall

19203

Females

7400

F55-59

7400

20M→21M

20.0 - 21.0 mi

Top 72%
×8story building
+106ft-24ft

Overall

19158

Females

7438

F55-59

7438

21M→35K

21.0 - 21.8 mi

Top 76%
×7story building
+17ft-86ft

Overall

20310

Females

8110

F55-59

8110

35K→23M

21.8 - 23.0 mi

Top 69%
×5story building
+23ft-63ft

Overall

18366

Females

7058

F55-59

7058

23M→24M

23.0 - 24.0 mi

Top 72%
×6story building
+12ft-82ft

Overall

19113

Females

7510

F55-59

7510

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

18748

Females

7357

F55-59

7357

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

18649

Females

7311

F55-59

7311

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2story building
+22ft-21ft

Overall

20483

Females

8280

F55-59

8280

Passing Analysis

Category:
Athletes Passed
1639
Passed By
1411
Net Change
+228
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19485
5K → 10K484230+254#19485#19231
10K → 15K183182+1#19231#19230
15K → 20K174147+27#19230#19203
20K → Half509+41#19203#19162
Half → 25K108155-47#19162#19209
25K → 30K179148+31#19209#19178
30K → 20M9384+9#19178#19169
20M → 21M7877+1#19169#19168
21M → 35K2689-63#19168#19231
35K → 23M9744+53#19231#19178
23M → 24M5853+5#19178#19173
24M → 40K58580#19173#19173
40K → 25.2M2817+11#19173#19162
25.2M → Finish23118-95#19162#19257
TOTALS16391411+228
📊

Passing Visuals

Category:
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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