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BOSTON MARATHON 2023

Verna Brock

Bib: 21476•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F50-54)
#0 / 1207
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
9:26/mi
29:19
↑ 97↓ 3451.5%
10K· 6.21 mi
9:50/mi
59:52
↑ 79↓ 1380.4%
15K· 9.32 mi
9:40/mi
1:29:53
↑ 67↓ 78
20K· 12.43 mi
10:19/mi
2:01:55
↑ 106↓ 860.1%
Half· 13.11 mi
10:35/mi
2:09:08
↑ 19↓ 370.5%
25K· 15.53 mi
10:07/mi
2:33:40
↑ 66↓ 880.2%
30K· 18.64 mi
10:41/mi
3:06:50
↑ 181↓ 1480.2%
20M
10:34/mi
3:21:11
↑ 64↓ 500.2%
21M
13:08/mi
3:34:19
↑ 106↓ 241.6%
35K· 21.75 mi
9:29/mi
3:41:25
↑ 17↓ 861.7%
23M
11:06/mi
3:55:19
↑ 23↓ 630.6%
24M
9:50/mi
4:05:09
↓ 821.3%
40K· 24.85 mi
10:18/mi
4:13:57
↓ 200.3%
25.2M
13:29/mi
4:18:36
↑ 13↓ 160.2%
Finish· 26.22 mi
9:17/mi
4:28:04
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:09:08
Pace9:51 /mi
2nd Half
Distance13.11 mi
Time2:18:56
Pace10:36 /mi
📊Positive Split: 7.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:3929:199:2629:19
9:26
-
10K
6.21 mi11:53:1259:529:3830:33
9:50
+0:24
15K
9.32 mi12:23:131:29:539:3930:01
9:40
-0:10
20K
12.43 mi12:55:152:01:559:4932:02
10:19
+0:39
Half
13.11 mi13:02:282:09:089:517:13
10:35
+0:16
25K
15.53 mi13:27:002:33:409:5424:32
10:07
-0:28
30K
18.64 mi14:00:103:06:5010:0133:10
10:41
+0:34
20M
20.00 mi14:14:313:21:1110:0414:21
10:34
-0:07
21M
21.00 mi14:27:393:34:1910:1213:08
13:08
+2:34
35K
21.75 mi14:34:453:41:2510:117:06
9:29
-3:39
23M
23.00 mi14:48:393:55:1910:1413:54
11:06
+1:37
24M
24.00 mi14:58:294:05:0910:139:50
9:50
-1:16
40K
24.85 mi15:07:174:13:5710:138:48
10:18
+0:28
25.2M
25.20 mi15:11:564:18:3610:164:39
13:29
+3:11
Finish
26.22 mi15:21:244:28:0410:149:28
9:17
-4:12

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

9:17 /mi

Average Pace

10:14 /mi

Slowest Pace

13:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:15:54

28% of race

Time at Steady Pace

2:40:29

60% of race

Time at Slower Pace

31:41

12% of race

Average Pace: 10:13 /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 mi11:22:3929:199:2629:19
9:26
#21904
10K
6.21 mi11:53:1259:529:3830:33
9:50
#22709
15K
9.32 mi12:23:131:29:539:3930:01
9:40
#22710
20K
12.43 mi12:55:152:01:559:4932:02
10:19
#22973
Half
13.11 mi13:02:282:09:089:517:13
10:35
#23055
25K
15.53 mi13:27:002:33:409:5424:32
10:07
#22937
30K
18.64 mi14:00:103:06:5010:0133:10
10:41
#22844
20M
20.00 mi14:14:313:21:1110:0414:21
10:34
#22758
21M
21.00 mi14:27:393:34:1910:1213:08
13:08
#22894
35K
21.75 mi14:34:453:41:2510:117:06
9:29
#22796
23M
23.00 mi14:48:393:55:1910:1413:54
11:06
#22779
24M
24.00 mi14:58:294:05:0910:139:50
9:50
#22666
40K
24.85 mi15:07:174:13:5710:138:48
10:18
#22614
25.2M
25.20 mi15:11:564:18:3610:164:39
13:29
#22658
Finish
26.22 mi15:21:244:28:0410:149:28
9:17
#22563
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi219048837883722706(Top 85%)9189(Top 80%)9189(Top 761%)
10K6.21 mi3.10 mi22709-8059203-3669203-36623350(Top 88%)9539(Top 84%)9539(Top 790%)
15K9.32 mi3.11 mi22710-19193+109193+1022706(Top 85%)9189(Top 80%)9189(Top 761%)
20K12.43 mi3.11 mi22973-2639331-1389331-13823490(Top 88%)9624(Top 84%)9624(Top 797%)
Half13.11 mi0.68 mi23055-829377-469377-4624339(Top 91%)10116(Top 89%)10116(Top 838%)
25K15.53 mi2.42 mi22937+1189325+529325+5222470(Top 84%)9098(Top 80%)9098(Top 754%)
30K18.64 mi3.11 mi22844+939302+239302+2322564(Top 85%)9219(Top 81%)9219(Top 764%)
20M20.00 mi1.36 mi22758+869267+359267+3521881(Top 82%)8914(Top 78%)8914(Top 739%)
21M21.00 mi1.00 mi22894-1369352-859352-8524240(Top 91%)10218(Top 89%)10218(Top 847%)
35K21.75 mi0.75 mi22796+989308+449308+4419859(Top 75%)7853(Top 69%)7853(Top 651%)
23M23.00 mi1.25 mi22779+179312-49312-422546(Top 85%)9349(Top 82%)9349(Top 775%)
24M24.00 mi1.00 mi22666+1139253+599253+5920348(Top 76%)8184(Top 72%)8184(Top 678%)
40K24.85 mi0.85 mi22614+529237+169237+1620743(Top 78%)8470(Top 74%)8470(Top 702%)
25.2M25.20 mi0.35 mi22658-449265-289265-2824504(Top 92%)10434(Top 91%)10434(Top 864%)
Finish26.22 mi1.02 mi22563+959222+439222+4319358(Top 73%)7658(Top 67%)7658(Top 634%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21story building
+97ft-345ft

Overall

22706

Females

9189

F50-54

9189

5K→10K

3.1 - 6.2 mi

Top 88%
×5story building
+79ft-138ft

Overall

23350

Females

9539

F50-54

9539

10K→15K

6.2 - 9.3 mi

Top 85%
×3story building
+67ft-78ft

Overall

22706

Females

9189

F50-54

9189

15K→20K

9.3 - 12.4 mi

Top 88%
×5story building
+106ft-86ft

Overall

23490

Females

9624

F50-54

9624

20K→Half

12.4 - 13.1 mi

Top 91%
×2story building
+19ft-37ft

Overall

24339

Females

10116

F50-54

10116

Half→25K

13.1 - 15.5 mi

Top 84%
×4story building
+66ft-88ft

Overall

22470

Females

9098

F50-54

9098

25K→30K

15.5 - 18.6 mi

Top 85%
×9story building
+181ft-148ft

Overall

22564

Females

9219

F50-54

9219

30K→20M

18.6 - 20.0 mi

Top 82%
×5story building
+64ft-50ft

Overall

21881

Females

8914

F50-54

8914

20M→21M

20.0 - 21.0 mi

Top 91%
×8story building
+106ft-24ft

Overall

24240

Females

10218

F50-54

10218

21M→35K

21.0 - 21.8 mi

Top 75%
×7story building
+17ft-86ft

Overall

19859

Females

7853

F50-54

7853

35K→23M

21.8 - 23.0 mi

Top 85%
×5story building
+23ft-63ft

Overall

22546

Females

9349

F50-54

9349

23M→24M

23.0 - 24.0 mi

Top 76%
×6story building
+12ft-82ft

Overall

20348

Females

8184

F50-54

8184

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

20743

Females

8470

F50-54

8470

40K→25.2M

24.9 - 25.2 mi

Top 92%
×1story
+13ft-16ft

Overall

24504

Females

10434

F50-54

10434

25.2M→Finish

25.2 - 26.2 mi

Top 73%
×2story building
+22ft-21ft

Overall

19358

Females

7658

F50-54

7658

Passing Analysis

Category:
Athletes Passed
1123
Passed By
1782
Net Change
-659
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21904
5K → 10K39844-805#21904#22709
10K → 15K148149-1#22709#22710
15K → 20K60323-263#22710#22973
20K → Half991-82#22973#23055
Half → 25K14628+118#23055#22937
25K → 30K16471+93#22937#22844
30K → 20M10519+86#22844#22758
20M → 21M15151-136#22758#22894
21M → 35K1013+98#22894#22796
35K → 23M5942+17#22796#22779
23M → 24M1152+113#22779#22666
24M → 40K597+52#22666#22614
40K → 25.2M549-44#22614#22658
25.2M → Finish983+95#22658#22563
TOTALS11231782-659
📊

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