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BOSTON MARATHON 2023

Cláudia Barros

Bib: 19180 F BR

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 41%
Masters (Masters Women)
#0 / 6539
Top 29%
Division (F50-54)
#0 / 1207
Top 20%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:07/mi
25:12
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:51/mi
49:35
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:56/mi
1:14:14
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:03/mi
1:39:14
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:02/mi
1:44:43
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:08/mi
2:04:25
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:29/mi
2:30:45
↑ 181↓ 1480.2%
138 ft elev
20M
8:44/mi
2:42:37
↑ 64↓ 500.2%
148 ft elev
21M
9:50/mi
2:52:27
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:12/mi
2:58:35
↑ 17↓ 861.7%
156 ft elev
23M
9:04/mi
3:09:56
↑ 23↓ 630.6%
116 ft elev
24M
8:42/mi
3:18:38
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:58/mi
3:26:18
↓ 200.3%
20 ft elev
25.2M
10:09/mi
3:29:48
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
9:09/mi
3:39:07
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:43
Pace7:59 /mi
2nd Half
Distance13.11 mi
Time1:54:24
Pace8:44 /mi
📊Positive Split: 9.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:1425:128:0725:12
8:07
-
10K
6.21 mi11:41:3749:357:5924:23
7:51
-0:16
15K
9.32 mi12:06:161:14:147:5824:39
7:56
+0:05
20K
12.43 mi12:31:161:39:147:5925:00
8:03
+0:07
Half
13.11 mi12:36:451:44:437:595:29
8:02
-0:01
25K
15.53 mi12:56:272:04:258:0119:42
8:08
+0:06
30K
18.64 mi13:22:472:30:458:0526:20
8:29
+0:21
20M
20.00 mi13:34:392:42:378:0811:52
8:44
+0:15
21M
21.00 mi13:44:292:52:278:139:50
9:50
+1:06
35K
21.75 mi13:50:372:58:358:136:08
8:12
-1:38
23M
23.00 mi14:01:583:09:568:1511:21
9:04
+0:52
24M
24.00 mi14:10:403:18:388:178:42
8:42
-0:22
40K
24.85 mi14:18:203:26:188:187:40
8:58
+0:16
25.2M
25.20 mi14:21:503:29:488:203:30
10:09
+1:11
Finish
26.22 mi14:31:093:39:078:229:19
9:09
-1:00

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

7:51 /mi

Average Pace

8:22 /mi

Slowest Pace

10:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:04:25

57% of race

Time at Steady Pace

53:02

24% of race

Time at Slower Pace

41:40

19% of race

Average Pace: 8:21 /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 mi11:17:1425:128:0725:12
8:07
#14805
10K
6.21 mi11:41:3749:357:5924:23
7:51
#14251
15K
9.32 mi12:06:161:14:147:5824:39
7:56
#14098
20K
12.43 mi12:31:161:39:147:5925:00
8:03
#13989
Half
13.11 mi12:36:451:44:437:595:29
8:02
#14013
25K
15.53 mi12:56:272:04:258:0119:42
8:08
#13939
30K
18.64 mi13:22:472:30:458:0526:20
8:29
#14000
20M
20.00 mi13:34:392:42:378:0811:52
8:44
#14082
21M
21.00 mi13:44:292:52:278:139:50
9:50
#14295
35K
21.75 mi13:50:372:58:358:136:08
8:12
#14251
23M
23.00 mi14:01:583:09:568:1511:21
9:04
#14392
24M
24.00 mi14:10:403:18:388:178:42
8:42
#14424
40K
24.85 mi14:18:203:26:188:187:40
8:58
#14480
25.2M
25.20 mi14:21:503:29:488:203:30
10:09
#14536
Finish
26.22 mi14:31:093:39:078:229:19
9:09
#14705
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi148054519451913879(Top 52%)4019(Top 35%)4019(Top 333%)
10K6.21 mi3.10 mi14251+5544200+3194200+31913564(Top 51%)3774(Top 33%)3774(Top 313%)
15K9.32 mi3.11 mi14098+1534118+824118+8213879(Top 52%)4019(Top 35%)4019(Top 333%)
20K12.43 mi3.11 mi13989+1094081+374081+3713827(Top 52%)4007(Top 35%)4007(Top 332%)
Half13.11 mi0.68 mi14013-244094-134094-1314727(Top 55%)4523(Top 40%)4523(Top 375%)
25K15.53 mi2.42 mi13939+744077+174077+1713711(Top 52%)4046(Top 35%)4046(Top 335%)
30K18.64 mi3.11 mi14000-614144-674144-6714171(Top 53%)4437(Top 39%)4437(Top 368%)
20M20.00 mi1.36 mi14082-824221-774221-7715065(Top 57%)5032(Top 44%)5032(Top 417%)
21M21.00 mi1.00 mi14295-2134379-1584379-15817380(Top 65%)6413(Top 56%)6413(Top 531%)
35K21.75 mi0.75 mi14251+444363+164363+1613480(Top 51%)4279(Top 37%)4279(Top 355%)
23M23.00 mi1.25 mi14392-1414468-1054468-10516386(Top 62%)5958(Top 52%)5958(Top 494%)
24M24.00 mi1.00 mi14424-324511-434511-4315674(Top 59%)5623(Top 49%)5623(Top 466%)
40K24.85 mi0.85 mi14480-564566-554566-5515978(Top 60%)5836(Top 51%)5836(Top 484%)
25.2M25.20 mi0.35 mi14536-564610-444610-4417957(Top 67%)6928(Top 61%)6928(Top 574%)
Finish26.22 mi1.02 mi14705-1694728-1184728-11818655(Top 70%)7248(Top 63%)7248(Top 600%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21story building
+97ft-345ft

Overall

13879

Females

4019

F50-54

4019

5K→10K

3.1 - 6.2 mi

Top 51%
×5story building
+79ft-138ft

Overall

13564

Females

3774

F50-54

3774

10K→15K

6.2 - 9.3 mi

Top 52%
×3story building
+67ft-78ft

Overall

13879

Females

4019

F50-54

4019

15K→20K

9.3 - 12.4 mi

Top 52%
×5story building
+106ft-86ft

Overall

13827

Females

4007

F50-54

4007

20K→Half

12.4 - 13.1 mi

Top 55%
×2story building
+19ft-37ft

Overall

14727

Females

4523

F50-54

4523

Half→25K

13.1 - 15.5 mi

Top 52%
×4story building
+66ft-88ft

Overall

13711

Females

4046

F50-54

4046

25K→30K

15.5 - 18.6 mi

Top 53%
×9story building
+181ft-148ft

Overall

14171

Females

4437

F50-54

4437

30K→20M

18.6 - 20.0 mi

Top 57%
×5story building
+64ft-50ft

Overall

15065

Females

5032

F50-54

5032

20M→21M

20.0 - 21.0 mi

Top 65%
×8story building
+106ft-24ft

Overall

17380

Females

6413

F50-54

6413

21M→35K

21.0 - 21.8 mi

Top 51%
×7story building
+17ft-86ft

Overall

13480

Females

4279

F50-54

4279

35K→23M

21.8 - 23.0 mi

Top 62%
×5story building
+23ft-63ft

Overall

16386

Females

5958

F50-54

5958

23M→24M

23.0 - 24.0 mi

Top 59%
×6story building
+12ft-82ft

Overall

15674

Females

5623

F50-54

5623

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

15978

Females

5836

F50-54

5836

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

17957

Females

6928

F50-54

6928

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2story building
+22ft-21ft

Overall

18655

Females

7248

F50-54

7248

Passing Analysis

Category:
Athletes Passed
1860
Passed By
1760
Net Change
+100
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14805
5K → 10K658104+554#14805#14251
10K → 15K269116+153#14251#14098
15K → 20K233124+109#14098#13989
20K → Half2852-24#13989#14013
Half → 25K16490+74#14013#13939
25K → 30K167228-61#13939#14000
30K → 20M64146-82#14000#14082
20M → 21M31244-213#14082#14295
21M → 35K6925+44#14295#14251
35K → 23M46187-141#14251#14392
23M → 24M6496-32#14392#14424
24M → 40K3692-56#14424#14480
40K → 25.2M1167-56#14480#14536
25.2M → Finish20189-169#14536#14705
TOTALS18601760+100
📊

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