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BOSTON MARATHON 2024

Klarissa Lou

Bib: 9871•F

OR

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 23%
Gender (Female)
#0 / 10924
Top 8%
Division (F18-39)
#0 / 4660
Top 15%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:45
Rank: #9360
Start → 5K
22:45 | 7:19/mi
10K· 6.21 mi
45:40
Rank: #9266 (+94)
5K → 10K
22:55 | 7:23/mi
15K· 9.32 mi
1:08:27
Rank: #8936 (+330)
10K → 15K
22:47 | 7:20/mi
20K· 12.43 mi
1:31:14
Rank: #8425 (+511)
15K → 20K
22:47 | 7:20/mi
Half· 13.11 mi
1:36:08
Rank: #8333 (+92)
20K → Half
4:54 | 7:11/mi
25K· 15.53 mi
1:53:48
Rank: #7787 (+546)
Half → 25K
17:40 | 7:17/mi
30K· 18.64 mi
2:16:44
Rank: #7054 (+733)
25K → 30K
22:56 | 7:23/mi
20M
2:27:00
Rank: #6721 (+333)
30K → 20M
10:16 | 7:33/mi
21M
2:35:04
Rank: #6468 (+253)
20M → 21M
8:04 | 8:04/mi
35K· 21.75 mi
2:40:39
Rank: #6345 (+123)
21M → 35K
5:35 | 7:28/mi
23M
2:50:27
Rank: #6146 (+199)
35K → 23M
9:48 | 7:50/mi
24M
2:58:14
Rank: #6050 (+96)
23M → 24M
7:47 | 7:47/mi
40K· 24.85 mi
3:05:01
Rank: #5930 (+120)
24M → 40K
6:47 | 7:56/mi
25.2M
3:08:00
Rank: #5886 (+44)
40K → 25.2M
2:59 | 8:39/mi
Finish· 26.22 mi
3:15:48
Rank: #5855 (+31)
25.2M → Finish
7:48 | 7:39/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:08
Pace7:20 /mi
2nd Half
Distance13.11 mi
Time1:39:40
Pace7:36 /mi
📊Positive Split: 3.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:3322:457:1922:45
7:19
-
10K
6.21 mi11:11:2845:407:2122:55
7:23
+0:04
15K
9.32 mi11:34:151:08:277:2122:47
7:20
-0:03
20K
12.43 mi11:57:021:31:147:2022:47
7:20
0:00
Half
13.11 mi12:01:561:36:087:204:54
7:11
-0:09
25K
15.53 mi12:19:361:53:487:2017:40
7:17
+0:06
30K
18.64 mi12:42:322:16:447:2022:56
7:23
+0:06
20M
20.00 mi12:52:482:27:007:2110:16
7:33
+0:10
21M
21.00 mi13:00:522:35:047:238:04
8:04
+0:31
35K
21.75 mi13:06:272:40:397:235:35
7:28
-0:36
23M
23.00 mi13:16:152:50:277:259:48
7:50
+0:22
24M
24.00 mi13:24:022:58:147:267:47
7:47
-0:03
40K
24.85 mi13:30:493:05:017:276:47
7:56
+0:09
25.2M
25.20 mi13:33:483:08:007:282:59
8:39
+0:43
Finish
26.22 mi13:41:363:15:487:287:48
7:39
-1:00

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

7:11 /mi

Average Pace

7:28 /mi

Slowest Pace

8:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

4:54

3% of race

Time at Steady Pace

2:35:29

79% of race

Time at Slower Pace

35:25

18% of race

Average Pace: 7:28 /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 mi10:48:3322:457:1922:45
7:19
#9360
10K
6.21 mi11:11:2845:407:2122:55
7:23
#9266
15K
9.32 mi11:34:151:08:277:2122:47
7:20
#8936
20K
12.43 mi11:57:021:31:147:2022:47
7:20
#8425
Half
13.11 mi12:01:561:36:087:204:54
7:11
#8333
25K
15.53 mi12:19:361:53:487:2017:40
7:17
#7787
30K
18.64 mi12:42:322:16:447:2022:56
7:23
#7054
20M
20.00 mi12:52:482:27:007:2110:16
7:33
#6721
21M
21.00 mi13:00:522:35:047:238:04
8:04
#6468
35K
21.75 mi13:06:272:40:397:235:35
7:28
#6345
23M
23.00 mi13:16:152:50:277:259:48
7:50
#6146
24M
24.00 mi13:24:022:58:147:267:47
7:47
#6050
40K
24.85 mi13:30:493:05:017:276:47
7:56
#5930
25.2M
25.20 mi13:33:483:08:007:282:59
8:39
#5886
Finish
26.22 mi13:41:363:15:487:287:48
7:39
#5855
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9360172517258395(Top 33%)1418(Top 13%)1418(Top 30%)
10K6.21 mi3.10 mi9266+941732-71732-79249(Top 36%)1762(Top 16%)1762(Top 38%)
15K9.32 mi3.11 mi8936+3301607+1251607+1258395(Top 33%)1418(Top 13%)1418(Top 30%)
20K12.43 mi3.11 mi8425+5111419+1881419+1887209(Top 28%)1075(Top 10%)1075(Top 23%)
Half13.11 mi0.68 mi8333+921382+371382+376915(Top 27%)961(Top 9%)961(Top 21%)
25K15.53 mi2.42 mi7787+5461207+1751207+1755763(Top 23%)729(Top 7%)729(Top 16%)
30K18.64 mi3.11 mi7054+7331006+2011006+2014564(Top 18%)519(Top 5%)519(Top 11%)
20M20.00 mi1.36 mi6721+333942+64942+644564(Top 18%)604(Top 6%)604(Top 13%)
21M21.00 mi1.00 mi6468+253903+39903+394441(Top 17%)690(Top 6%)690(Top 15%)
35K21.75 mi0.75 mi6345+123883+20883+204923(Top 19%)850(Top 8%)850(Top 18%)
23M23.00 mi1.25 mi6146+199872+11872+114943(Top 19%)982(Top 9%)982(Top 21%)
24M24.00 mi1.00 mi6050+96865+7865+75477(Top 21%)1290(Top 12%)1290(Top 28%)
40K24.85 mi0.85 mi5930+120855+10855+105490(Top 21%)1412(Top 13%)1412(Top 30%)
25.2M25.20 mi0.35 mi5886+44857-2857-25087(Top 20%)1288(Top 12%)1288(Top 28%)
Finish26.22 mi1.02 mi5855+31878-21878-216476(Top 25%)1862(Top 17%)1862(Top 40%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21stories
+97ft-345ft

Overall

8395

Females

1418

F18-39

1418

5K→10K

3.1 - 6.2 mi

Top 36%
×5stories
+79ft-138ft

Overall

9249

Females

1762

F18-39

1762

10K→15K

6.2 - 9.3 mi

Top 33%
×3stories
+67ft-78ft

Overall

8395

Females

1418

F18-39

1418

15K→20K

9.3 - 12.4 mi

Top 28%
×5stories
+106ft-86ft

Overall

7209

Females

1075

F18-39

1075

20K→Half

12.4 - 13.1 mi

Top 27%
×2stories
+19ft-37ft

Overall

6915

Females

961

F18-39

961

Half→25K

13.1 - 15.5 mi

Top 23%
×4stories
+66ft-88ft

Overall

5763

Females

729

F18-39

729

25K→30K

15.5 - 18.6 mi

Top 18%
×9stories
+181ft-148ft

Overall

4564

Females

519

F18-39

519

30K→20M

18.6 - 20.0 mi

Top 18%
×5stories
+64ft-50ft

Overall

4564

Females

604

F18-39

604

20M→21M

20.0 - 21.0 mi

Top 17%
×8stories
+106ft-24ft

Overall

4441

Females

690

F18-39

690

21M→35K

21.0 - 21.8 mi

Top 19%
×7stories
+17ft-86ft

Overall

4923

Females

850

F18-39

850

35K→23M

21.8 - 23.0 mi

Top 19%
×5stories
+23ft-63ft

Overall

4943

Females

982

F18-39

982

23M→24M

23.0 - 24.0 mi

Top 21%
×6stories
+12ft-82ft

Overall

5477

Females

1290

F18-39

1290

24M→40K

24.0 - 24.9 mi

Top 21%
×1story
+6ft-20ft

Overall

5490

Females

1412

F18-39

1412

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1story
+13ft-16ft

Overall

5087

Females

1288

F18-39

1288

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2stories
+22ft-21ft

Overall

6476

Females

1862

F18-39

1862

Passing Analysis

Category:
Athletes Passed
3917
Passed By
412
Net Change
+3505
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9360
5K → 10K286192+94#9360#9266
10K → 15K36636+330#9266#8936
15K → 20K52413+511#8936#8425
20K → Half953+92#8425#8333
Half → 25K5482+546#8333#7787
25K → 30K7363+733#7787#7054
30K → 20M3363+333#7054#6721
20M → 21M2585+253#6721#6468
21M → 35K13411+123#6468#6345
35K → 23M22122+199#6345#6146
23M → 24M13034+96#6146#6050
24M → 40K14525+120#6050#5930
40K → 25.2M5612+44#5930#5886
25.2M → Finish8251+31#5886#5855
TOTALS3917412+3505
📊

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