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BOSTON MARATHON 2024

Karalyn Spadaro

Bib: 16729•F

MA

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 49%
Gender (Female)
#0 / 10924
Top 36%
Division (F18-39)
#0 / 4660
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:36
Rank: #11524
Start → 5K
7:36/mi
23:36 split
10K· 6.21 mi
47:13
Rank: #11277 (+247)
5K → 10K
7:36/mi
23:37 split
15K· 9.32 mi
1:10:48
Rank: #10929 (+348)
10K → 15K
7:35/mi
23:35 split
20K· 12.43 mi
1:34:46
Rank: #10588 (+341)
15K → 20K
7:43/mi
23:58 split
Half· 13.11 mi
1:40:03
Rank: #10595 (-7)
20K → Half
7:45/mi
5:17 split
25K· 15.53 mi
1:59:47
Rank: #10619 (-24)
Half → 25K
8:08/mi
19:44 split
30K· 18.64 mi
2:27:19
Rank: #10960 (-341)
25K → 30K
8:52/mi
27:32 split
20M
2:40:15
Rank: #11285 (-325)
30K → 20M
9:31/mi
12:56 split
21M
2:50:39
Rank: #11499 (-214)
20M → 21M
10:24/mi
10:24 split
35K· 21.75 mi
2:57:55
Rank: #11736 (-237)
21M → 35K
9:43/mi
7:16 split
23M
3:10:59
Rank: #12121 (-385)
35K → 23M
10:26/mi
13:04 split
24M
3:21:18
Rank: #12425 (-304)
23M → 24M
10:19/mi
10:19 split
40K· 24.85 mi
3:29:53
Rank: #12543 (-118)
24M → 40K
10:02/mi
8:35 split
25.2M
3:33:41
Rank: #12572 (-29)
40K → 25.2M
11:01/mi
3:48 split
Finish· 26.22 mi
3:42:11
Rank: #12465 (+107)
25.2M → Finish
8:20/mi
8:30 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:03
Pace7:38 /mi
2nd Half
Distance13.11 mi
Time2:02:08
Pace9:19 /mi
📊Positive Split: 22.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:5523:367:3623:36
7:36
-
10K
6.21 mi11:37:3247:137:3623:37
7:36
0:00
15K
9.32 mi12:01:071:10:487:3623:35
7:35
-0:01
20K
12.43 mi12:25:051:34:467:3823:58
7:43
+0:08
Half
13.11 mi12:30:221:40:037:385:17
7:45
+0:02
25K
15.53 mi12:50:061:59:477:4319:44
8:08
+0:23
30K
18.64 mi13:17:382:27:197:5427:32
8:52
+0:44
20M
20.00 mi13:30:342:40:158:0112:56
9:31
+0:39
21M
21.00 mi13:40:582:50:398:0810:24
10:24
+0:53
35K
21.75 mi13:48:142:57:558:117:16
9:43
-0:41
23M
23.00 mi14:01:183:10:598:1813:04
10:26
+0:43
24M
24.00 mi14:11:373:21:188:2310:19
10:19
-0:07
40K
24.85 mi14:20:123:29:538:278:35
10:02
-0:17
25.2M
25.20 mi14:24:003:33:418:293:48
11:01
+0:59
Finish
26.22 mi14:32:303:42:118:298:30
8:20
-2:41

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

7:35 /mi

Average Pace

8:29 /mi

Slowest Pace

11:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:59:47

54% of race

Time at Steady Pace

36:02

16% of race

Time at Slower Pace

1:06:22

30% of race

Average Pace: 8:28 /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 mi11:13:5523:367:3623:36
7:36
#11524
10K
6.21 mi11:37:3247:137:3623:37
7:36
#11277
15K
9.32 mi12:01:071:10:487:3623:35
7:35
#10929
20K
12.43 mi12:25:051:34:467:3823:58
7:43
#10588
Half
13.11 mi12:30:221:40:037:385:17
7:45
#10595
25K
15.53 mi12:50:061:59:477:4319:44
8:08
#10619
30K
18.64 mi13:17:382:27:197:5427:32
8:52
#10960
20M
20.00 mi13:30:342:40:158:0112:56
9:31
#11285
21M
21.00 mi13:40:582:50:398:0810:24
10:24
#11499
35K
21.75 mi13:48:142:57:558:117:16
9:43
#11736
23M
23.00 mi14:01:183:10:598:1813:04
10:26
#12121
24M
24.00 mi14:11:373:21:188:2310:19
10:19
#12425
40K
24.85 mi14:20:123:29:538:278:35
10:02
#12543
25.2M
25.20 mi14:24:003:33:418:293:48
11:01
#12572
Finish
26.22 mi14:32:303:42:118:298:30
8:20
#12465
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi115242865286510372(Top 41%)2371(Top 22%)2371(Top 51%)
10K6.21 mi3.10 mi11277+2472757+1082757+10811113(Top 43%)2709(Top 25%)2709(Top 58%)
15K9.32 mi3.11 mi10929+3482596+1612596+16110372(Top 41%)2371(Top 22%)2371(Top 51%)
20K12.43 mi3.11 mi10588+3412442+1542442+1549863(Top 39%)2265(Top 21%)2265(Top 49%)
Half13.11 mi0.68 mi10595-72458-162458-1611002(Top 43%)2822(Top 26%)2822(Top 61%)
25K15.53 mi2.42 mi10619-242534-762534-7611034(Top 43%)2983(Top 27%)2983(Top 64%)
30K18.64 mi3.11 mi10960-3412807-2732807-27312535(Top 49%)4023(Top 37%)4023(Top 86%)
20M20.00 mi1.36 mi11285-3253031-2243031-22414614(Top 57%)5458(Top 50%)5458(Top 117%)
21M21.00 mi1.00 mi11499-2143199-1683199-16814516(Top 57%)5577(Top 51%)5577(Top 120%)
35K21.75 mi0.75 mi11736-2373353-1543353-15416241(Top 64%)6468(Top 59%)6468(Top 139%)
23M23.00 mi1.25 mi12121-3853645-2923645-29216872(Top 66%)6847(Top 63%)6847(Top 147%)
24M24.00 mi1.00 mi12425-3043853-2083853-20817339(Top 68%)7122(Top 65%)7122(Top 153%)
40K24.85 mi0.85 mi12543-1183968-1153968-11515141(Top 59%)6070(Top 56%)6070(Top 130%)
25.2M25.20 mi0.35 mi12572-294004-364004-3614567(Top 57%)5812(Top 53%)5812(Top 125%)
Finish26.22 mi1.02 mi12465+1073981+233981+2310634(Top 42%)3809(Top 35%)3809(Top 82%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21stories
+97ft-345ft

Overall

10372

Females

2371

F18-39

2371

5K→10K

3.1 - 6.2 mi

Top 43%
×5stories
+79ft-138ft

Overall

11113

Females

2709

F18-39

2709

10K→15K

6.2 - 9.3 mi

Top 41%
×3stories
+67ft-78ft

Overall

10372

Females

2371

F18-39

2371

15K→20K

9.3 - 12.4 mi

Top 39%
×5stories
+106ft-86ft

Overall

9863

Females

2265

F18-39

2265

20K→Half

12.4 - 13.1 mi

Top 43%
×2stories
+19ft-37ft

Overall

11002

Females

2822

F18-39

2822

Half→25K

13.1 - 15.5 mi

Top 43%
×4stories
+66ft-88ft

Overall

11034

Females

2983

F18-39

2983

25K→30K

15.5 - 18.6 mi

Top 49%
×9stories
+181ft-148ft

Overall

12535

Females

4023

F18-39

4023

30K→20M

18.6 - 20.0 mi

Top 57%
×5stories
+64ft-50ft

Overall

14614

Females

5458

F18-39

5458

20M→21M

20.0 - 21.0 mi

Top 57%
×8stories
+106ft-24ft

Overall

14516

Females

5577

F18-39

5577

21M→35K

21.0 - 21.8 mi

Top 64%
×7stories
+17ft-86ft

Overall

16241

Females

6468

F18-39

6468

35K→23M

21.8 - 23.0 mi

Top 66%
×5stories
+23ft-63ft

Overall

16872

Females

6847

F18-39

6847

23M→24M

23.0 - 24.0 mi

Top 68%
×6stories
+12ft-82ft

Overall

17339

Females

7122

F18-39

7122

24M→40K

24.0 - 24.9 mi

Top 59%
×1story
+6ft-20ft

Overall

15141

Females

6070

F18-39

6070

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

14567

Females

5812

F18-39

5812

25.2M→Finish

25.2 - 26.2 mi

Top 42%
×2stories
+22ft-21ft

Overall

10634

Females

3809

F18-39

3809

Passing Analysis

Category:
Athletes Passed
2170
Passed By
3111
Net Change
-941
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11524
5K → 10K408161+247#11524#11277
10K → 15K40557+348#11277#10929
15K → 20K40160+341#10929#10588
20K → Half4350-7#10588#10595
Half → 25K219243-24#10595#10619
25K → 30K193534-341#10619#10960
30K → 20M62387-325#10960#11285
20M → 21M77291-214#11285#11499
21M → 35K26263-237#11499#11736
35K → 23M63448-385#11736#12121
23M → 24M40344-304#12121#12425
24M → 40K62180-118#12425#12543
40K → 25.2M3665-29#12543#12572
25.2M → Finish13528+107#12572#12465
TOTALS21703111-941
📊

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