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BOSTON MARATHON 2023

Elizabeth Clark

Bib: 18873•F

AB

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 39%
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
25:44
Rank: #16027
Start → 5K
25:44 | 8:17/mi
10K· 6.21 mi
51:02
Rank: #15910 (+117)
5K → 10K
25:18 | 8:09/mi
15K· 9.32 mi
1:16:42
Rank: #16028 (-118)
10K → 15K
25:40 | 8:16/mi
20K· 12.43 mi
1:42:20
Rank: #15813 (+215)
15K → 20K
25:38 | 8:15/mi
Half· 13.11 mi
1:47:50
Rank: #15758 (+55)
20K → Half
5:30 | 8:04/mi
25K· 15.53 mi
2:07:40
Rank: #15484 (+274)
Half → 25K
19:50 | 8:11/mi
30K· 18.64 mi
2:33:27
Rank: #15007 (+477)
25K → 30K
25:47 | 8:18/mi
20M
2:44:59
Rank: #14902 (+105)
30K → 20M
11:32 | 8:29/mi
21M
2:53:45
Rank: #14722 (+180)
20M → 21M
8:46 | 8:46/mi
35K· 21.75 mi
2:59:56
Rank: #14669 (+53)
21M → 35K
6:11 | 8:16/mi
23M
3:10:20
Rank: #14503 (+166)
35K → 23M
10:24 | 8:18/mi
24M
3:18:40
Rank: #14430 (+73)
23M → 24M
8:20 | 8:20/mi
40K· 24.85 mi
3:25:45
Rank: #14325 (+105)
24M → 40K
7:05 | 8:17/mi
25.2M
3:28:44
Rank: #14254 (+71)
40K → 25.2M
2:59 | 8:39/mi
Finish· 26.22 mi
3:37:08
Rank: #14225 (+29)
25.2M → Finish
8:24 | 8:15/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:50
Pace8:14 /mi
2nd Half
Distance13.11 mi
Time1:49:18
Pace8:20 /mi
📊Positive Split: 1.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:5425:448:1725:44
8:17
-
10K
6.21 mi11:42:1251:028:1325:18
8:09
-0:08
15K
9.32 mi12:07:521:16:428:1425:40
8:16
+0:07
20K
12.43 mi12:33:301:42:208:1425:38
8:15
-0:01
Half
13.11 mi12:39:001:47:508:145:30
8:04
-0:11
25K
15.53 mi12:58:502:07:408:1319:50
8:11
+0:07
30K
18.64 mi13:24:372:33:278:1425:47
8:18
+0:07
20M
20.00 mi13:36:092:44:598:1511:32
8:29
+0:11
21M
21.00 mi13:44:552:53:458:168:46
8:46
+0:17
35K
21.75 mi13:51:062:59:568:166:11
8:16
-0:30
23M
23.00 mi14:01:303:10:208:1710:24
8:18
+0:02
24M
24.00 mi14:09:503:18:408:178:20
8:20
+0:02
40K
24.85 mi14:16:553:25:458:177:05
8:17
-0:03
25.2M
25.20 mi14:19:543:28:448:172:59
8:39
+0:22
Finish
26.22 mi14:28:183:37:088:178:24
8:15
-0:24

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

8:04 /mi

Average Pace

8:17 /mi

Slowest Pace

8:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:13:51

89% of race

Time at Steady Pace

23:17

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:17 /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 mi11:16:5425:448:1725:44
8:17
#16027
10K
6.21 mi11:42:1251:028:1325:18
8:09
#15910
15K
9.32 mi12:07:521:16:428:1425:40
8:16
#16028
20K
12.43 mi12:33:301:42:208:1425:38
8:15
#15813
Half
13.11 mi12:39:001:47:508:145:30
8:04
#15758
25K
15.53 mi12:58:502:07:408:1319:50
8:11
#15484
30K
18.64 mi13:24:372:33:278:1425:47
8:18
#15007
20M
20.00 mi13:36:092:44:598:1511:32
8:29
#14902
21M
21.00 mi13:44:552:53:458:168:46
8:46
#14722
35K
21.75 mi13:51:062:59:568:166:11
8:16
#14669
23M
23.00 mi14:01:303:10:208:1710:24
8:18
#14503
24M
24.00 mi14:09:503:18:408:178:20
8:20
#14430
40K
24.85 mi14:16:553:25:458:177:05
8:17
#14325
25.2M
25.20 mi14:19:543:28:448:172:59
8:39
#14254
Finish
26.22 mi14:28:183:37:088:178:24
8:15
#14225
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi160275300530016293(Top 61%)5468(Top 48%)5468(Top 112%)
10K6.21 mi3.10 mi15910+1175232+685232+6815852(Top 60%)5175(Top 45%)5175(Top 106%)
15K9.32 mi3.11 mi16028-1185299-675299-6716293(Top 61%)5468(Top 48%)5468(Top 112%)
20K12.43 mi3.11 mi15813+2155189+1105189+11015281(Top 57%)4885(Top 43%)4885(Top 100%)
Half13.11 mi0.68 mi15758+555156+335156+3314908(Top 56%)4628(Top 41%)4628(Top 95%)
25K15.53 mi2.42 mi15484+2745016+1405016+14014108(Top 53%)4292(Top 38%)4292(Top 88%)
30K18.64 mi3.11 mi15007+4774751+2654751+26513039(Top 49%)3786(Top 33%)3786(Top 78%)
20M20.00 mi1.36 mi14902+1054707+444707+4413571(Top 51%)4160(Top 36%)4160(Top 85%)
21M21.00 mi1.00 mi14722+1804627+804627+8012106(Top 45%)3468(Top 30%)3468(Top 71%)
35K21.75 mi0.75 mi14669+534608+194608+1913935(Top 52%)4526(Top 40%)4526(Top 93%)
23M23.00 mi1.25 mi14503+1664526+824526+8211970(Top 45%)3508(Top 31%)3508(Top 72%)
24M24.00 mi1.00 mi14430+734514+124514+1213461(Top 51%)4371(Top 38%)4371(Top 89%)
40K24.85 mi0.85 mi14325+1054472+424472+4211973(Top 45%)3663(Top 32%)3663(Top 75%)
25.2M25.20 mi0.35 mi14254+714439+334439+3310581(Top 40%)3007(Top 26%)3007(Top 62%)
Finish26.22 mi1.02 mi14225+294442-34442-313746(Top 52%)4605(Top 40%)4605(Top 94%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21stories
+97ft-345ft

Overall

16293

Females

5468

F18-39

5468

5K→10K

3.1 - 6.2 mi

Top 60%
×5stories
+79ft-138ft

Overall

15852

Females

5175

F18-39

5175

10K→15K

6.2 - 9.3 mi

Top 61%
×3stories
+67ft-78ft

Overall

16293

Females

5468

F18-39

5468

15K→20K

9.3 - 12.4 mi

Top 57%
×5stories
+106ft-86ft

Overall

15281

Females

4885

F18-39

4885

20K→Half

12.4 - 13.1 mi

Top 56%
×2stories
+19ft-37ft

Overall

14908

Females

4628

F18-39

4628

Half→25K

13.1 - 15.5 mi

Top 53%
×4stories
+66ft-88ft

Overall

14108

Females

4292

F18-39

4292

25K→30K

15.5 - 18.6 mi

Top 49%
×9stories
+181ft-148ft

Overall

13039

Females

3786

F18-39

3786

30K→20M

18.6 - 20.0 mi

Top 51%
×5stories
+64ft-50ft

Overall

13571

Females

4160

F18-39

4160

20M→21M

20.0 - 21.0 mi

Top 45%
×8stories
+106ft-24ft

Overall

12106

Females

3468

F18-39

3468

21M→35K

21.0 - 21.8 mi

Top 52%
×7stories
+17ft-86ft

Overall

13935

Females

4526

F18-39

4526

35K→23M

21.8 - 23.0 mi

Top 45%
×5stories
+23ft-63ft

Overall

11970

Females

3508

F18-39

3508

23M→24M

23.0 - 24.0 mi

Top 51%
×6stories
+12ft-82ft

Overall

13461

Females

4371

F18-39

4371

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

11973

Females

3663

F18-39

3663

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

10581

Females

3007

F18-39

3007

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2stories
+22ft-21ft

Overall

13746

Females

4605

F18-39

4605

Passing Analysis

Category:
Athletes Passed
2609
Passed By
807
Net Change
+1802
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16027
5K → 10K358241+117#16027#15910
10K → 15K141259-118#15910#16028
15K → 20K28671+215#16028#15813
20K → Half6611+55#15813#15758
Half → 25K29420+274#15758#15484
25K → 30K49316+477#15484#15007
30K → 20M13631+105#15007#14902
20M → 21M19010+180#14902#14722
21M → 35K8330+53#14722#14669
35K → 23M17610+166#14669#14503
23M → 24M11542+73#14503#14430
24M → 40K11611+105#14430#14325
40K → 25.2M721+71#14325#14254
25.2M → Finish8354+29#14254#14225
TOTALS2609807+1802
📊

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