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BOSTON MARATHON 2023

Brittney Hall

Bib: 29452•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
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
9:19/mi
28:56
↑ 97↓ 3451.5%
10K· 6.21 mi
9:42/mi
59:04
↑ 79↓ 1380.4%
15K· 9.32 mi
9:52/mi
1:29:43
↑ 67↓ 78
20K· 12.43 mi
10:17/mi
2:01:39
↑ 106↓ 860.1%
Half· 13.11 mi
10:17/mi
2:08:40
↑ 19↓ 370.5%
25K· 15.53 mi
10:35/mi
2:34:19
↑ 66↓ 880.2%
30K· 18.64 mi
11:09/mi
3:08:56
↑ 181↓ 1480.2%
20M
11:47/mi
3:24:57
↑ 64↓ 500.2%
21M
13:01/mi
3:37:58
↑ 106↓ 241.6%
35K· 21.75 mi
11:30/mi
3:46:34
↑ 17↓ 861.7%
23M
12:08/mi
4:01:45
↑ 23↓ 630.6%
24M
12:02/mi
4:13:47
↓ 821.3%
40K· 24.85 mi
12:19/mi
4:24:19
↓ 200.3%
25.2M
13:12/mi
4:28:52
↑ 13↓ 160.2%
Finish· 26.22 mi
11:06/mi
4:40:11
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:08:40
Pace9:49 /mi
2nd Half
Distance13.11 mi
Time2:31:31
Pace11:33 /mi
📊Positive Split: 17.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:0028:569:1928:56
9:19
-
10K
6.21 mi12:17:0859:049:3030:08
9:42
+0:23
15K
9.32 mi12:47:471:29:439:3830:39
9:52
+0:10
20K
12.43 mi13:19:432:01:399:4731:56
10:17
+0:25
Half
13.11 mi13:26:442:08:409:497:01
10:17
0:00
25K
15.53 mi13:52:232:34:199:5625:39
10:35
+0:18
30K
18.64 mi14:27:003:08:5610:0834:37
11:09
+0:34
20M
20.00 mi14:43:013:24:5710:1516:01
11:47
+0:38
21M
21.00 mi14:56:023:37:5810:2313:01
13:01
+1:14
35K
21.75 mi15:04:383:46:3410:258:36
11:30
-1:31
23M
23.00 mi15:19:494:01:4510:3115:11
12:08
+0:38
24M
24.00 mi15:31:514:13:4710:3412:02
12:02
-0:06
40K
24.85 mi15:42:234:24:1910:3810:32
12:19
+0:17
25.2M
25.20 mi15:46:564:28:5210:404:33
13:12
+0:53
Finish
26.22 mi15:58:154:40:1110:4211:19
11:06
-2:06

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

9:19 /mi

Average Pace

10:42 /mi

Slowest Pace

13:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:08:40

46% of race

Time at Steady Pace

1:20:11

29% of race

Time at Slower Pace

1:11:20

25% of race

Average Pace: 10:41 /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 mi11:47:0028:569:1928:56
9:19
#21576
10K
6.21 mi12:17:0859:049:3030:08
9:42
#22341
15K
9.32 mi12:47:471:29:439:3830:39
9:52
#22661
20K
12.43 mi13:19:432:01:399:4731:56
10:17
#22908
Half
13.11 mi13:26:442:08:409:497:01
10:17
#22980
25K
15.53 mi13:52:232:34:199:5625:39
10:35
#23035
30K
18.64 mi14:27:003:08:5610:0834:37
11:09
#23117
20M
20.00 mi14:43:013:24:5710:1516:01
11:47
#23180
21M
21.00 mi14:56:023:37:5810:2313:01
13:01
#23255
35K
21.75 mi15:04:383:46:3410:258:36
11:30
#23288
23M
23.00 mi15:19:494:01:4510:3115:11
12:08
#23368
24M
24.00 mi15:31:514:13:4710:3412:02
12:02
#23449
40K
24.85 mi15:42:234:24:1910:3810:32
12:19
#23497
25.2M
25.20 mi15:46:564:28:5210:404:33
13:12
#23518
Finish
26.22 mi15:58:154:40:1110:4211:19
11:06
#23556
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi215768682868223226(Top 87%)9462(Top 83%)9462(Top 194%)
10K6.21 mi3.10 mi22341-7659018-3369018-33623055(Top 87%)9363(Top 82%)9363(Top 192%)
15K9.32 mi3.11 mi22661-3209169-1519169-15123226(Top 87%)9462(Top 83%)9462(Top 194%)
20K12.43 mi3.11 mi22908-2479301-1329301-13223436(Top 88%)9585(Top 84%)9585(Top 196%)
Half13.11 mi0.68 mi22980-729334-339334-3323833(Top 90%)9822(Top 86%)9822(Top 201%)
25K15.53 mi2.42 mi23035-559373-399373-3923326(Top 88%)9573(Top 84%)9573(Top 196%)
30K18.64 mi3.11 mi23117-829446-739446-7323327(Top 88%)9644(Top 84%)9644(Top 197%)
20M20.00 mi1.36 mi23180-639486-409486-4023934(Top 90%)10042(Top 88%)10042(Top 206%)
21M21.00 mi1.00 mi23255-759536-509536-5024103(Top 91%)10147(Top 89%)10147(Top 208%)
35K21.75 mi0.75 mi23288-339559-239559-2324101(Top 91%)10180(Top 89%)10180(Top 208%)
23M23.00 mi1.25 mi23368-809614-559614-5524162(Top 91%)10216(Top 89%)10216(Top 209%)
24M24.00 mi1.00 mi23449-819664-509664-5024581(Top 92%)10477(Top 92%)10477(Top 215%)
40K24.85 mi0.85 mi23497-489693-299693-2924252(Top 91%)10309(Top 90%)10309(Top 211%)
25.2M25.20 mi0.35 mi23518-219712-199712-1924199(Top 91%)10283(Top 90%)10283(Top 211%)
Finish26.22 mi1.02 mi23556-389742-309742-3024157(Top 91%)10232(Top 90%)10232(Top 210%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 87%
×21story building
+97ft-345ft

Overall

23226

Females

9462

F18-39

9462

5K→10K

3.1 - 6.2 mi

Top 87%
×5story building
+79ft-138ft

Overall

23055

Females

9363

F18-39

9363

10K→15K

6.2 - 9.3 mi

Top 87%
×3story building
+67ft-78ft

Overall

23226

Females

9462

F18-39

9462

15K→20K

9.3 - 12.4 mi

Top 88%
×5story building
+106ft-86ft

Overall

23436

Females

9585

F18-39

9585

20K→Half

12.4 - 13.1 mi

Top 90%
×2story building
+19ft-37ft

Overall

23833

Females

9822

F18-39

9822

Half→25K

13.1 - 15.5 mi

Top 88%
×4story building
+66ft-88ft

Overall

23326

Females

9573

F18-39

9573

25K→30K

15.5 - 18.6 mi

Top 88%
×9story building
+181ft-148ft

Overall

23327

Females

9644

F18-39

9644

30K→20M

18.6 - 20.0 mi

Top 90%
×5story building
+64ft-50ft

Overall

23934

Females

10042

F18-39

10042

20M→21M

20.0 - 21.0 mi

Top 91%
×8story building
+106ft-24ft

Overall

24103

Females

10147

F18-39

10147

21M→35K

21.0 - 21.8 mi

Top 91%
×7story building
+17ft-86ft

Overall

24101

Females

10180

F18-39

10180

35K→23M

21.8 - 23.0 mi

Top 91%
×5story building
+23ft-63ft

Overall

24162

Females

10216

F18-39

10216

23M→24M

23.0 - 24.0 mi

Top 92%
×6story building
+12ft-82ft

Overall

24581

Females

10477

F18-39

10477

24M→40K

24.0 - 24.9 mi

Top 91%
×1story
+6ft-20ft

Overall

24252

Females

10309

F18-39

10309

40K→25.2M

24.9 - 25.2 mi

Top 91%
×1story
+13ft-16ft

Overall

24199

Females

10283

F18-39

10283

25.2M→Finish

25.2 - 26.2 mi

Top 91%
×2story building
+22ft-21ft

Overall

24157

Females

10232

F18-39

10232

Passing Analysis

Category:
Athletes Passed
513
Passed By
2493
Net Change
-1980
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21576
5K → 10K56821-765#21576#22341
10K → 15K57377-320#22341#22661
15K → 20K63310-247#22661#22908
20K → Half1183-72#22908#22980
Half → 25K75130-55#22980#23035
25K → 30K90172-82#23035#23117
30K → 20M3396-63#23117#23180
20M → 21M1994-75#23180#23255
21M → 35K2255-33#23255#23288
35K → 23M27107-80#23288#23368
23M → 24M1091-81#23368#23449
24M → 40K1866-48#23449#23497
40K → 25.2M728-21#23497#23518
25.2M → Finish2563-38#23518#23556
TOTALS5132493-1980
📊

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