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BOSTON MARATHON 2023

Kara Clifton

Bib: 11286•F

MN

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 41%
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
25:16
Rank: #14965
Start → 5K
25:16 | 8:08/mi
10K· 6.21 mi
50:55
Rank: #15783 (-818)
5K → 10K
25:39 | 8:15/mi
15K· 9.32 mi
1:16:09
Rank: #15613 (+170)
10K → 15K
25:14 | 8:07/mi
20K· 12.43 mi
1:41:30
Rank: #15363 (+250)
15K → 20K
25:21 | 8:10/mi
Half· 13.11 mi
1:47:05
Rank: #15371 (-8)
20K → Half
5:35 | 8:11/mi
25K· 15.53 mi
2:07:08
Rank: #15244 (+127)
Half → 25K
20:03 | 8:16/mi
30K· 18.64 mi
2:33:13
Rank: #14947 (+297)
25K → 30K
26:05 | 8:24/mi
20M
2:44:59
Rank: #14899 (+48)
30K → 20M
11:46 | 8:39/mi
21M
2:53:38
Rank: #14680 (+219)
20M → 21M
8:39 | 8:39/mi
35K· 21.75 mi
2:59:59
Rank: #14690 (-10)
21M → 35K
6:21 | 8:29/mi
23M
3:10:53
Rank: #14660 (+30)
35K → 23M
10:54 | 8:42/mi
24M
3:19:26
Rank: #14648 (+12)
23M → 24M
8:33 | 8:33/mi
40K· 24.85 mi
3:26:53
Rank: #14624 (+24)
24M → 40K
7:27 | 8:43/mi
25.2M
3:30:06
Rank: #14613 (+11)
40K → 25.2M
3:13 | 9:20/mi
Finish· 26.22 mi
3:38:34
Rank: #14579 (+34)
25.2M → Finish
8:28 | 8:19/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:05
Pace8:10 /mi
2nd Half
Distance13.11 mi
Time1:51:29
Pace8:30 /mi
📊Positive Split: 4.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:0025:168:0825:16
8:08
-
10K
6.21 mi11:51:3950:558:1225:39
8:15
+0:07
15K
9.32 mi12:16:531:16:098:1025:14
8:07
-0:08
20K
12.43 mi12:42:141:41:308:1025:21
8:10
+0:03
Half
13.11 mi12:47:491:47:058:105:35
8:11
+0:01
25K
15.53 mi13:07:522:07:088:1120:03
8:16
+0:05
30K
18.64 mi13:33:572:33:138:1326:05
8:24
+0:08
20M
20.00 mi13:45:432:44:598:1511:46
8:39
+0:15
21M
21.00 mi13:54:222:53:388:168:39
8:39
0:00
35K
21.75 mi14:00:432:59:598:176:21
8:29
-0:10
23M
23.00 mi14:11:373:10:538:1810:54
8:42
+0:13
24M
24.00 mi14:20:103:19:268:198:33
8:33
-0:09
40K
24.85 mi14:27:373:26:538:197:27
8:43
+0:10
25.2M
25.20 mi14:30:503:30:068:203:13
9:20
+0:37
Finish
26.22 mi14:39:183:38:348:218:28
8:19
-1:01

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

8:07 /mi

Average Pace

8:21 /mi

Slowest Pace

9:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:35:21

99% of race

Time at Steady Pace

3:13

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:20 /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 mi11:26:0025:168:0825:16
8:08
#14965
10K
6.21 mi11:51:3950:558:1225:39
8:15
#15783
15K
9.32 mi12:16:531:16:098:1025:14
8:07
#15613
20K
12.43 mi12:42:141:41:308:1025:21
8:10
#15363
Half
13.11 mi12:47:491:47:058:105:35
8:11
#15371
25K
15.53 mi13:07:522:07:088:1120:03
8:16
#15244
30K
18.64 mi13:33:572:33:138:1326:05
8:24
#14947
20M
20.00 mi13:45:432:44:598:1511:46
8:39
#14899
21M
21.00 mi13:54:222:53:388:168:39
8:39
#14680
35K
21.75 mi14:00:432:59:598:176:21
8:29
#14690
23M
23.00 mi14:11:373:10:538:1810:54
8:42
#14660
24M
24.00 mi14:20:103:19:268:198:33
8:33
#14648
40K
24.85 mi14:27:373:26:538:197:27
8:43
#14624
25.2M
25.20 mi14:30:503:30:068:203:13
9:20
#14613
Finish
26.22 mi14:39:183:38:348:218:28
8:19
#14579
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi149654618461815317(Top 58%)4859(Top 43%)4859(Top 99%)
10K6.21 mi3.10 mi15783-8185146-5285146-52816623(Top 62%)5649(Top 49%)5649(Top 116%)
15K9.32 mi3.11 mi15613+1705043+1035043+10315317(Top 58%)4859(Top 43%)4859(Top 99%)
20K12.43 mi3.11 mi15363+2504910+1334910+13314678(Top 55%)4511(Top 39%)4511(Top 92%)
Half13.11 mi0.68 mi15371-84919-94919-915704(Top 59%)5110(Top 45%)5110(Top 105%)
25K15.53 mi2.42 mi15244+1274864+554864+5514745(Top 55%)4674(Top 41%)4674(Top 96%)
30K18.64 mi3.11 mi14947+2974711+1534711+15313685(Top 51%)4147(Top 36%)4147(Top 85%)
20M20.00 mi1.36 mi14899+484705+64705+614593(Top 55%)4770(Top 42%)4770(Top 98%)
21M21.00 mi1.00 mi14680+2194597+1084597+10811410(Top 43%)3108(Top 27%)3108(Top 64%)
35K21.75 mi0.75 mi14690-104617-204617-2015250(Top 57%)5254(Top 46%)5254(Top 108%)
23M23.00 mi1.25 mi14660+304626-94626-914431(Top 54%)4868(Top 43%)4868(Top 100%)
24M24.00 mi1.00 mi14648+124650-244650-2414788(Top 56%)5107(Top 45%)5107(Top 105%)
40K24.85 mi0.85 mi14624+244656-64656-614609(Top 55%)5083(Top 44%)5083(Top 104%)
25.2M25.20 mi0.35 mi14613+114658-24658-214375(Top 54%)4945(Top 43%)4945(Top 101%)
Finish26.22 mi1.02 mi14579+344648+104648+1014178(Top 53%)4839(Top 42%)4839(Top 99%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21stories
+97ft-345ft

Overall

15317

Females

4859

F18-39

4859

5K→10K

3.1 - 6.2 mi

Top 62%
×5stories
+79ft-138ft

Overall

16623

Females

5649

F18-39

5649

10K→15K

6.2 - 9.3 mi

Top 58%
×3stories
+67ft-78ft

Overall

15317

Females

4859

F18-39

4859

15K→20K

9.3 - 12.4 mi

Top 55%
×5stories
+106ft-86ft

Overall

14678

Females

4511

F18-39

4511

20K→Half

12.4 - 13.1 mi

Top 59%
×2stories
+19ft-37ft

Overall

15704

Females

5110

F18-39

5110

Half→25K

13.1 - 15.5 mi

Top 55%
×4stories
+66ft-88ft

Overall

14745

Females

4674

F18-39

4674

25K→30K

15.5 - 18.6 mi

Top 51%
×9stories
+181ft-148ft

Overall

13685

Females

4147

F18-39

4147

30K→20M

18.6 - 20.0 mi

Top 55%
×5stories
+64ft-50ft

Overall

14593

Females

4770

F18-39

4770

20M→21M

20.0 - 21.0 mi

Top 43%
×8stories
+106ft-24ft

Overall

11410

Females

3108

F18-39

3108

21M→35K

21.0 - 21.8 mi

Top 57%
×7stories
+17ft-86ft

Overall

15250

Females

5254

F18-39

5254

35K→23M

21.8 - 23.0 mi

Top 54%
×5stories
+23ft-63ft

Overall

14431

Females

4868

F18-39

4868

23M→24M

23.0 - 24.0 mi

Top 56%
×6stories
+12ft-82ft

Overall

14788

Females

5107

F18-39

5107

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

14609

Females

5083

F18-39

5083

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

14375

Females

4945

F18-39

4945

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2stories
+22ft-21ft

Overall

14178

Females

4839

F18-39

4839

Passing Analysis

Category:
Athletes Passed
1962
Passed By
1576
Net Change
+386
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14965
5K → 10K72890-818#14965#15783
10K → 15K277107+170#15783#15613
15K → 20K31464+250#15613#15363
20K → Half3442-8#15363#15371
Half → 25K19669+127#15371#15244
25K → 30K34346+297#15244#14947
30K → 20M10153+48#14947#14899
20M → 21M2267+219#14899#14680
21M → 35K4454-10#14680#14690
35K → 23M9464+30#14690#14660
23M → 24M8371+12#14660#14648
24M → 40K6844+24#14648#14624
40K → 25.2M3423+11#14624#14613
25.2M → Finish7642+34#14613#14579
TOTALS19621576+386
📊

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