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BOSTON MARATHON 2023

Julia Cardwell

Bib: 24951•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

Start
0:00:00
Race begins
5K· 3.11 mi
33:07
Rank: #25101
Start → 5K
33:07 | 10:40/mi
10K· 6.21 mi
1:07:37
Rank: #25425 (-324)
5K → 10K
34:30 | 11:06/mi
15K· 9.32 mi
1:46:05
Rank: #25872 (-447)
10K → 15K
38:28 | 12:23/mi
20K· 12.43 mi
2:20:28
Rank: #25588 (+284)
15K → 20K
34:23 | 11:04/mi
Half· 13.11 mi
2:28:00
Rank: #25573 (+15)
20K → Half
7:32 | 11:02/mi
25K· 15.53 mi
2:57:07
Rank: #25503 (+70)
Half → 25K
29:07 | 12:01/mi
30K· 18.64 mi
3:39:26
Rank: #25613 (-110)
25K → 30K
42:19 | 13:37/mi
20M
3:56:37
Rank: #25560 (+53)
30K → 20M
17:11 | 12:39/mi
21M
4:12:11
Rank: #25609 (-49)
20M → 21M
15:34 | 15:34/mi
35K· 21.75 mi
4:21:31
Rank: #25597 (+12)
21M → 35K
9:20 | 12:29/mi
23M
4:37:01
Rank: #25543 (+54)
35K → 23M
15:30 | 12:23/mi
24M
4:50:24
Rank: #25570 (-27)
23M → 24M
13:23 | 13:23/mi
40K· 24.85 mi
5:00:20
Rank: #25515 (+55)
24M → 40K
9:56 | 11:37/mi
25.2M
5:05:49
Rank: #25526 (-11)
40K → 25.2M
5:29 | 15:54/mi
Finish· 26.22 mi
5:17:31
Rank: #25508 (+18)
25.2M → Finish
11:42 | 11:29/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:28:00
Pace11:17 /mi
2nd Half
Distance13.11 mi
Time2:49:31
Pace12:56 /mi
📊Positive Split: 14.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:2733:0710:4033:07
10:40
-
10K
6.21 mi12:22:571:07:3710:5334:30
11:06
+0:26
15K
9.32 mi13:01:251:46:0511:2338:28
12:23
+1:17
20K
12.43 mi13:35:482:20:2811:1834:23
11:04
-1:19
Half
13.11 mi13:43:202:28:0011:177:32
11:02
-0:02
25K
15.53 mi14:12:272:57:0711:2429:07
12:01
+0:59
30K
18.64 mi14:54:463:39:2611:4642:19
13:37
+1:36
20M
20.00 mi15:11:573:56:3711:5017:11
12:39
-0:58
21M
21.00 mi15:27:314:12:1112:0115:34
15:34
+2:55
35K
21.75 mi15:36:514:21:3112:019:20
12:29
-3:05
23M
23.00 mi15:52:214:37:0112:0315:30
12:23
-0:06
24M
24.00 mi16:05:444:50:2412:0613:23
13:23
+1:00
40K
24.85 mi16:15:405:00:2012:059:56
11:37
-1:46
25.2M
25.20 mi16:21:095:05:4912:085:29
15:54
+4:17
Finish
26.22 mi16:32:515:17:3112:0711:42
11:29
-4:25

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

10:40 /mi

Average Pace

12:07 /mi

Slowest Pace

15:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:11:10

41% of race

Time at Steady Pace

1:49:36

35% of race

Time at Slower Pace

1:16:45

24% of race

Average Pace: 12:07 /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 mi11:48:2733:0710:4033:07
10:40
#25101
10K
6.21 mi12:22:571:07:3710:5334:30
11:06
#25425
15K
9.32 mi13:01:251:46:0511:2338:28
12:23
#25872
20K
12.43 mi13:35:482:20:2811:1834:23
11:04
#25588
Half
13.11 mi13:43:202:28:0011:177:32
11:02
#25573
25K
15.53 mi14:12:272:57:0711:2429:07
12:01
#25503
30K
18.64 mi14:54:463:39:2611:4642:19
13:37
#25613
20M
20.00 mi15:11:573:56:3711:5017:11
12:39
#25560
21M
21.00 mi15:27:314:12:1112:0115:34
15:34
#25609
35K
21.75 mi15:36:514:21:3112:019:20
12:29
#25597
23M
23.00 mi15:52:214:37:0112:0315:30
12:23
#25543
24M
24.00 mi16:05:444:50:2412:0613:23
13:23
#25570
40K
24.85 mi16:15:405:00:2012:059:56
11:37
#25515
25.2M
25.20 mi16:21:095:05:4912:085:29
15:54
#25526
Finish
26.22 mi16:32:515:17:3112:0711:42
11:29
#25508
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25101104931049326262(Top 99%)11209(Top 98%)11209(Top 230%)
10K6.21 mi3.10 mi25425-32410684-19110684-19125574(Top 96%)10782(Top 94%)10782(Top 221%)
15K9.32 mi3.11 mi25872-44710962-27810962-27826262(Top 99%)11209(Top 98%)11209(Top 230%)
20K12.43 mi3.11 mi25588+28410799+16310799+16324720(Top 93%)10319(Top 90%)10319(Top 211%)
Half13.11 mi0.68 mi25573+1510794+510794+525008(Top 94%)10507(Top 92%)10507(Top 215%)
25K15.53 mi2.42 mi25503+7010765+2910765+2925172(Top 95%)10617(Top 93%)10617(Top 217%)
30K18.64 mi3.11 mi25613-11010837-7210837-7225826(Top 97%)11009(Top 96%)11009(Top 225%)
20M20.00 mi1.36 mi25560+5310811+2610811+2624878(Top 93%)10537(Top 92%)10537(Top 216%)
21M21.00 mi1.00 mi25609-4910836-2510836-2526048(Top 98%)11137(Top 97%)11137(Top 228%)
35K21.75 mi0.75 mi25597+12108361083625157(Top 94%)10739(Top 94%)10739(Top 220%)
23M23.00 mi1.25 mi25543+5410815+2110815+2124468(Top 92%)10373(Top 91%)10373(Top 212%)
24M24.00 mi1.00 mi25570-2710834-1910834-1925735(Top 97%)11041(Top 97%)11041(Top 226%)
40K24.85 mi0.85 mi25515+5510812+2210812+2223409(Top 88%)9891(Top 87%)9891(Top 203%)
25.2M25.20 mi0.35 mi25526-1110822-1010822-1026089(Top 98%)11207(Top 98%)11207(Top 229%)
Finish26.22 mi1.02 mi25508+1810814+810814+824666(Top 93%)10492(Top 92%)10492(Top 215%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 99%
×21stories
+97ft-345ft

Overall

26262

Females

11209

F18-39

11209

5K→10K

3.1 - 6.2 mi

Top 96%
×5stories
+79ft-138ft

Overall

25574

Females

10782

F18-39

10782

10K→15K

6.2 - 9.3 mi

Top 99%
×3stories
+67ft-78ft

Overall

26262

Females

11209

F18-39

11209

15K→20K

9.3 - 12.4 mi

Top 93%
×5stories
+106ft-86ft

Overall

24720

Females

10319

F18-39

10319

20K→Half

12.4 - 13.1 mi

Top 94%
×2stories
+19ft-37ft

Overall

25008

Females

10507

F18-39

10507

Half→25K

13.1 - 15.5 mi

Top 95%
×4stories
+66ft-88ft

Overall

25172

Females

10617

F18-39

10617

25K→30K

15.5 - 18.6 mi

Top 97%
×9stories
+181ft-148ft

Overall

25826

Females

11009

F18-39

11009

30K→20M

18.6 - 20.0 mi

Top 93%
×5stories
+64ft-50ft

Overall

24878

Females

10537

F18-39

10537

20M→21M

20.0 - 21.0 mi

Top 98%
×8stories
+106ft-24ft

Overall

26048

Females

11137

F18-39

11137

21M→35K

21.0 - 21.8 mi

Top 94%
×7stories
+17ft-86ft

Overall

25157

Females

10739

F18-39

10739

35K→23M

21.8 - 23.0 mi

Top 92%
×5stories
+23ft-63ft

Overall

24468

Females

10373

F18-39

10373

23M→24M

23.0 - 24.0 mi

Top 97%
×6stories
+12ft-82ft

Overall

25735

Females

11041

F18-39

11041

24M→40K

24.0 - 24.9 mi

Top 88%
×1story
+6ft-20ft

Overall

23409

Females

9891

F18-39

9891

40K→25.2M

24.9 - 25.2 mi

Top 98%
×1story
+13ft-16ft

Overall

26089

Females

11207

F18-39

11207

25.2M→Finish

25.2 - 26.2 mi

Top 93%
×2stories
+22ft-21ft

Overall

24666

Females

10492

F18-39

10492

Passing Analysis

Category:
Athletes Passed
758
Passed By
1165
Net Change
-407
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25101
5K → 10K69393-324#25101#25425
10K → 15K12459-447#25425#25872
15K → 20K2840+284#25872#25588
20K → Half227+15#25588#25573
Half → 25K10131+70#25573#25503
25K → 30K29139-110#25503#25613
30K → 20M607+53#25613#25560
20M → 21M1160-49#25560#25609
21M → 35K2210+12#25609#25597
35K → 23M551+54#25597#25543
23M → 24M936-27#25543#25570
24M → 40K583+55#25570#25515
40K → 25.2M516-11#25515#25526
25.2M → Finish213+18#25526#25508
TOTALS7581165-407
📊

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