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BOSTON MARATHON 2023

Karla Barnhart

Bib: 21333•F

IN

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 42%
Division (F45-49)
#0 / 1817
Top 50%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:07
Rank: #19060
Start → 5K
27:07 | 8:44/mi
10K· 6.21 mi
53:36
Rank: #18671 (+389)
5K → 10K
26:29 | 8:31/mi
15K· 9.32 mi
1:19:29
Rank: #18035 (+636)
10K → 15K
25:53 | 8:20/mi
20K· 12.43 mi
1:45:47
Rank: #17644 (+391)
15K → 20K
26:18 | 8:28/mi
Half· 13.11 mi
1:51:29
Rank: #17600 (+44)
20K → Half
5:42 | 8:21/mi
25K· 15.53 mi
2:11:58
Rank: #17293 (+307)
Half → 25K
20:29 | 8:27/mi
30K· 18.64 mi
2:39:13
Rank: #17010 (+283)
25K → 30K
27:15 | 8:46/mi
20M
2:51:04
Rank: #16867 (+143)
30K → 20M
11:51 | 8:43/mi
21M
3:00:18
Rank: #16721 (+146)
20M → 21M
9:14 | 9:14/mi
35K· 21.75 mi
3:06:51
Rank: #16713 (+8)
21M → 35K
6:33 | 8:45/mi
23M
3:18:04
Rank: #16647 (+66)
35K → 23M
11:13 | 8:58/mi
24M
3:27:12
Rank: #16709 (-62)
23M → 24M
9:08 | 9:08/mi
40K· 24.85 mi
3:34:55
Rank: #16696 (+13)
24M → 40K
7:43 | 9:02/mi
25.2M
3:38:13
Rank: #16659 (+37)
40K → 25.2M
3:18 | 9:34/mi
Finish· 26.22 mi
3:47:10
Rank: #16663 (-4)
25.2M → Finish
8:57 | 8:47/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:29
Pace8:30 /mi
2nd Half
Distance13.11 mi
Time1:55:41
Pace8:49 /mi
📊Positive Split: 3.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:4427:078:4427:07
8:44
-
10K
6.21 mi11:50:1353:368:3826:29
8:31
-0:13
15K
9.32 mi12:16:061:19:298:3225:53
8:20
-0:11
20K
12.43 mi12:42:241:45:478:3126:18
8:28
+0:08
Half
13.11 mi12:48:061:51:298:305:42
8:21
-0:07
25K
15.53 mi13:08:352:11:588:3020:29
8:27
+0:06
30K
18.64 mi13:35:502:39:138:3227:15
8:46
+0:19
20M
20.00 mi13:47:412:51:048:3311:51
8:43
-0:03
21M
21.00 mi13:56:553:00:188:359:14
9:14
+0:31
35K
21.75 mi14:03:283:06:518:356:33
8:45
-0:29
23M
23.00 mi14:14:413:18:048:3711:13
8:58
+0:13
24M
24.00 mi14:23:493:27:128:389:08
9:08
+0:10
40K
24.85 mi14:31:323:34:558:397:43
9:02
-0:06
25.2M
25.20 mi14:34:503:38:138:403:18
9:34
+0:32
Finish
26.22 mi14:43:473:47:108:408:57
8:47
-0:47

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

8:20 /mi

Average Pace

8:40 /mi

Slowest Pace

9:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:34:38

94% of race

Time at Steady Pace

12:32

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:40 /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 mi11:23:4427:078:4427:07
8:44
#19060
10K
6.21 mi11:50:1353:368:3826:29
8:31
#18671
15K
9.32 mi12:16:061:19:298:3225:53
8:20
#18035
20K
12.43 mi12:42:241:45:478:3126:18
8:28
#17644
Half
13.11 mi12:48:061:51:298:305:42
8:21
#17600
25K
15.53 mi13:08:352:11:588:3020:29
8:27
#17293
30K
18.64 mi13:35:502:39:138:3227:15
8:46
#17010
20M
20.00 mi13:47:412:51:048:3311:51
8:43
#16867
21M
21.00 mi13:56:553:00:188:359:14
9:14
#16721
35K
21.75 mi14:03:283:06:518:356:33
8:45
#16713
23M
23.00 mi14:14:413:18:048:3711:13
8:58
#16647
24M
24.00 mi14:23:493:27:128:389:08
9:08
#16709
40K
24.85 mi14:31:323:34:558:397:43
9:02
#16696
25.2M
25.20 mi14:34:503:38:138:403:18
9:34
#16659
Finish
26.22 mi14:43:473:47:108:408:57
8:47
#16663
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi190607234723416750(Top 63%)5762(Top 50%)5762(Top 317%)
10K6.21 mi3.10 mi18671+3896925+3096925+30918403(Top 69%)6715(Top 59%)6715(Top 370%)
15K9.32 mi3.11 mi18035+6366547+3786547+37816750(Top 63%)5762(Top 50%)5762(Top 317%)
20K12.43 mi3.11 mi17644+3916305+2426305+24216640(Top 63%)5726(Top 50%)5726(Top 315%)
Half13.11 mi0.68 mi17600+446281+246281+2416893(Top 63%)5839(Top 51%)5839(Top 321%)
25K15.53 mi2.42 mi17293+3076112+1696112+16915915(Top 60%)5390(Top 47%)5390(Top 297%)
30K18.64 mi3.11 mi17010+2835967+1455967+14515896(Top 60%)5442(Top 48%)5442(Top 300%)
20M20.00 mi1.36 mi16867+1435894+735894+7315025(Top 56%)5014(Top 44%)5014(Top 276%)
21M21.00 mi1.00 mi16721+1465830+645830+6414670(Top 55%)4863(Top 43%)4863(Top 268%)
35K21.75 mi0.75 mi16713+85827+35827+316736(Top 63%)6124(Top 54%)6124(Top 337%)
23M23.00 mi1.25 mi16647+665819+85819+815860(Top 60%)5660(Top 50%)5660(Top 312%)
24M24.00 mi1.00 mi16709-625866-475866-4717808(Top 67%)6801(Top 60%)6801(Top 374%)
40K24.85 mi0.85 mi16696+135878-125878-1216304(Top 61%)6029(Top 53%)6029(Top 332%)
25.2M25.20 mi0.35 mi16659+375864+145864+1415574(Top 59%)5635(Top 49%)5635(Top 310%)
Finish26.22 mi1.02 mi16663-45879-155879-1516965(Top 64%)6352(Top 56%)6352(Top 350%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21stories
+97ft-345ft

Overall

16750

Females

5762

F45-49

5762

5K→10K

3.1 - 6.2 mi

Top 69%
×5stories
+79ft-138ft

Overall

18403

Females

6715

F45-49

6715

10K→15K

6.2 - 9.3 mi

Top 63%
×3stories
+67ft-78ft

Overall

16750

Females

5762

F45-49

5762

15K→20K

9.3 - 12.4 mi

Top 63%
×5stories
+106ft-86ft

Overall

16640

Females

5726

F45-49

5726

20K→Half

12.4 - 13.1 mi

Top 63%
×2stories
+19ft-37ft

Overall

16893

Females

5839

F45-49

5839

Half→25K

13.1 - 15.5 mi

Top 60%
×4stories
+66ft-88ft

Overall

15915

Females

5390

F45-49

5390

25K→30K

15.5 - 18.6 mi

Top 60%
×9stories
+181ft-148ft

Overall

15896

Females

5442

F45-49

5442

30K→20M

18.6 - 20.0 mi

Top 56%
×5stories
+64ft-50ft

Overall

15025

Females

5014

F45-49

5014

20M→21M

20.0 - 21.0 mi

Top 55%
×8stories
+106ft-24ft

Overall

14670

Females

4863

F45-49

4863

21M→35K

21.0 - 21.8 mi

Top 63%
×7stories
+17ft-86ft

Overall

16736

Females

6124

F45-49

6124

35K→23M

21.8 - 23.0 mi

Top 60%
×5stories
+23ft-63ft

Overall

15860

Females

5660

F45-49

5660

23M→24M

23.0 - 24.0 mi

Top 67%
×6stories
+12ft-82ft

Overall

17808

Females

6801

F45-49

6801

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

16304

Females

6029

F45-49

6029

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1story
+13ft-16ft

Overall

15574

Females

5635

F45-49

5635

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2stories
+22ft-21ft

Overall

16965

Females

6352

F45-49

6352

Passing Analysis

Category:
Athletes Passed
3080
Passed By
683
Net Change
+2397
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19060
5K → 10K595206+389#19060#18671
10K → 15K66024+636#18671#18035
15K → 20K43140+391#18035#17644
20K → Half5511+44#17644#17600
Half → 25K3136+307#17600#17293
25K → 30K33047+283#17293#17010
30K → 20M15916+143#17010#16867
20M → 21M15711+146#16867#16721
21M → 35K4436+8#16721#16713
35K → 23M12155+66#16713#16647
23M → 24M45107-62#16647#16709
24M → 40K6653+13#16709#16696
40K → 25.2M4710+37#16696#16659
25.2M → Finish5761-4#16659#16663
TOTALS3080683+2397
📊

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