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BOSTON MARATHON 2023

Juliet Burnham

Bib: 18088•F

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0:00
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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

Start
0:00:00
Race begins
5K· 3.11 mi
29:53
Rank: #22437
Start → 5K
29:53 | 9:37/mi
10K· 6.21 mi
59:50
Rank: #22696 (-259)
5K → 10K
29:57 | 9:38/mi
15K· 9.32 mi
1:29:50
Rank: #22687 (+9)
10K → 15K
30:00 | 9:39/mi
20K· 12.43 mi
1:59:44
Rank: #22506 (+181)
15K → 20K
29:54 | 9:37/mi
Half· 13.11 mi
2:06:19
Rank: #22510 (-4)
20K → Half
6:35 | 9:39/mi
25K· 15.53 mi
2:30:23
Rank: #22429 (+81)
Half → 25K
24:04 | 9:56/mi
30K· 18.64 mi
3:03:17
Rank: #22403 (+26)
25K → 30K
32:54 | 10:35/mi
20M
3:19:01
Rank: #22517 (-114)
30K → 20M
15:44 | 11:35/mi
21M
3:31:03
Rank: #22549 (-32)
20M → 21M
12:02 | 12:02/mi
35K· 21.75 mi
3:39:25
Rank: #22579 (-30)
21M → 35K
8:22 | 11:11/mi
23M
3:54:38
Rank: #22710 (-131)
35K → 23M
15:13 | 12:09/mi
24M
4:06:26
Rank: #22790 (-80)
23M → 24M
11:48 | 11:48/mi
40K· 24.85 mi
4:17:17
Rank: #22885 (-95)
24M → 40K
10:51 | 12:41/mi
25.2M
4:22:06
Rank: #22931 (-46)
40K → 25.2M
4:49 | 13:58/mi
Finish· 26.22 mi
4:35:16
Rank: #23148 (-217)
25.2M → Finish
13:10 | 12:55/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:06:19
Pace9:38 /mi
2nd Half
Distance13.11 mi
Time2:28:57
Pace11:22 /mi
📊Positive Split: 17.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:2929:539:3729:53
9:37
-
10K
6.21 mi12:15:2659:509:3829:57
9:38
+0:01
15K
9.32 mi12:45:261:29:509:3830:00
9:39
+0:01
20K
12.43 mi13:15:201:59:449:3829:54
9:37
-0:02
Half
13.11 mi13:21:552:06:199:386:35
9:39
+0:02
25K
15.53 mi13:45:592:30:239:4124:04
9:56
+0:17
30K
18.64 mi14:18:533:03:179:5032:54
10:35
+0:39
20M
20.00 mi14:34:373:19:019:5715:44
11:35
+1:00
21M
21.00 mi14:46:393:31:0310:0312:02
12:02
+0:27
35K
21.75 mi14:55:013:39:2510:058:22
11:11
-0:51
23M
23.00 mi15:10:143:54:3810:1215:13
12:09
+0:58
24M
24.00 mi15:22:024:06:2610:1611:48
11:48
-0:21
40K
24.85 mi15:32:534:17:1710:2110:51
12:41
+0:53
25.2M
25.20 mi15:37:424:22:0610:244:49
13:58
+1:17
Finish
26.22 mi15:50:524:35:1610:3013:10
12:55
-1:03

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

9:37 /mi

Average Pace

10:30 /mi

Slowest Pace

13:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:30:23

55% of race

Time at Steady Pace

1:08:48

25% of race

Time at Slower Pace

56:05

20% of race

Average Pace: 10:30 /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 mi11:45:2929:539:3729:53
9:37
#22437
10K
6.21 mi12:15:2659:509:3829:57
9:38
#22696
15K
9.32 mi12:45:261:29:509:3830:00
9:39
#22687
20K
12.43 mi13:15:201:59:449:3829:54
9:37
#22506
Half
13.11 mi13:21:552:06:199:386:35
9:39
#22510
25K
15.53 mi13:45:592:30:239:4124:04
9:56
#22429
30K
18.64 mi14:18:533:03:179:5032:54
10:35
#22403
20M
20.00 mi14:34:373:19:019:5715:44
11:35
#22517
21M
21.00 mi14:46:393:31:0310:0312:02
12:02
#22549
35K
21.75 mi14:55:013:39:2510:058:22
11:11
#22579
23M
23.00 mi15:10:143:54:3810:1215:13
12:09
#22710
24M
24.00 mi15:22:024:06:2610:1611:48
11:48
#22790
40K
24.85 mi15:32:534:17:1710:2110:51
12:41
#22885
25.2M
25.20 mi15:37:424:22:0610:244:49
13:58
#22931
Finish
26.22 mi15:50:524:35:1610:3013:10
12:55
#23148
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi224379102910222687(Top 85%)9182(Top 80%)9182(Top 188%)
10K6.21 mi3.10 mi22696-2599198-969198-9622915(Top 86%)9295(Top 81%)9295(Top 190%)
15K9.32 mi3.11 mi22687+99180+189180+1822687(Top 85%)9182(Top 80%)9182(Top 188%)
20K12.43 mi3.11 mi22506+1819092+889092+8821940(Top 82%)8767(Top 77%)8767(Top 180%)
Half13.11 mi0.68 mi22510-49099-79099-722546(Top 85%)9109(Top 80%)9109(Top 187%)
25K15.53 mi2.42 mi22429+819070+299070+2922061(Top 83%)8871(Top 78%)8871(Top 182%)
30K18.64 mi3.11 mi22403+269064+69064+622390(Top 84%)9123(Top 80%)9123(Top 187%)
20M20.00 mi1.36 mi22517-1149148-849148-8423639(Top 89%)9860(Top 86%)9860(Top 202%)
21M21.00 mi1.00 mi22549-329165-179165-1722812(Top 86%)9445(Top 83%)9445(Top 193%)
35K21.75 mi0.75 mi22579-309189-249189-2423632(Top 89%)9951(Top 87%)9951(Top 204%)
23M23.00 mi1.25 mi22710-1319273-849273-8424189(Top 91%)10227(Top 90%)10227(Top 209%)
24M24.00 mi1.00 mi22790-809328-559328-5524267(Top 91%)10308(Top 90%)10308(Top 211%)
40K24.85 mi0.85 mi22885-959383-559383-5524666(Top 93%)10502(Top 92%)10502(Top 215%)
25.2M25.20 mi0.35 mi22931-469406-239406-2324990(Top 94%)10688(Top 94%)10688(Top 219%)
Finish26.22 mi1.02 mi23148-2179524-1189524-11825938(Top 97%)11139(Top 98%)11139(Top 228%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21stories
+97ft-345ft

Overall

22687

Females

9182

F18-39

9182

5K→10K

3.1 - 6.2 mi

Top 86%
×5stories
+79ft-138ft

Overall

22915

Females

9295

F18-39

9295

10K→15K

6.2 - 9.3 mi

Top 85%
×3stories
+67ft-78ft

Overall

22687

Females

9182

F18-39

9182

15K→20K

9.3 - 12.4 mi

Top 82%
×5stories
+106ft-86ft

Overall

21940

Females

8767

F18-39

8767

20K→Half

12.4 - 13.1 mi

Top 85%
×2stories
+19ft-37ft

Overall

22546

Females

9109

F18-39

9109

Half→25K

13.1 - 15.5 mi

Top 83%
×4stories
+66ft-88ft

Overall

22061

Females

8871

F18-39

8871

25K→30K

15.5 - 18.6 mi

Top 84%
×9stories
+181ft-148ft

Overall

22390

Females

9123

F18-39

9123

30K→20M

18.6 - 20.0 mi

Top 89%
×5stories
+64ft-50ft

Overall

23639

Females

9860

F18-39

9860

20M→21M

20.0 - 21.0 mi

Top 86%
×8stories
+106ft-24ft

Overall

22812

Females

9445

F18-39

9445

21M→35K

21.0 - 21.8 mi

Top 89%
×7stories
+17ft-86ft

Overall

23632

Females

9951

F18-39

9951

35K→23M

21.8 - 23.0 mi

Top 91%
×5stories
+23ft-63ft

Overall

24189

Females

10227

F18-39

10227

23M→24M

23.0 - 24.0 mi

Top 91%
×6stories
+12ft-82ft

Overall

24267

Females

10308

F18-39

10308

24M→40K

24.0 - 24.9 mi

Top 93%
×1story
+6ft-20ft

Overall

24666

Females

10502

F18-39

10502

40K→25.2M

24.9 - 25.2 mi

Top 94%
×1story
+13ft-16ft

Overall

24990

Females

10688

F18-39

10688

25.2M→Finish

25.2 - 26.2 mi

Top 97%
×2stories
+22ft-21ft

Overall

25938

Females

11139

F18-39

11139

Passing Analysis

Category:
Athletes Passed
976
Passed By
1687
Net Change
-711
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22437
5K → 10K136395-259#22437#22696
10K → 15K152143+9#22696#22687
15K → 20K23756+181#22687#22506
20K → Half2428-4#22506#22510
Half → 25K13453+81#22510#22429
25K → 30K130104+26#22429#22403
30K → 20M27141-114#22403#22517
20M → 21M4476-32#22517#22549
21M → 35K2555-30#22549#22579
35K → 23M24155-131#22579#22710
23M → 24M20100-80#22710#22790
24M → 40K10105-95#22790#22885
40K → 25.2M551-46#22885#22931
25.2M → Finish8225-217#22931#23148
TOTALS9761687-711
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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