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BOSTON MARATHON 2024

Mara Horwitz

Bib: 18142•F

WA

0:00
0:00
/ mi
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
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
26:52
Rank: #18588
Start → 5K
26:52 | 8:39/mi
10K· 6.21 mi
55:37
Rank: #19697 (-1109)
5K → 10K
28:45 | 9:15/mi
15K· 9.32 mi
1:26:38
Rank: #20632 (-935)
10K → 15K
31:01 | 9:59/mi
20K· 12.43 mi
2:00:31
Rank: #21205 (-573)
15K → 20K
33:53 | 10:54/mi
Half· 13.11 mi
2:07:19
Rank: #21204 (+1)
20K → Half
6:48 | 9:58/mi
25K· 15.53 mi
2:35:16
Rank: #21459 (-255)
Half → 25K
27:57 | 11:32/mi
30K· 18.64 mi
3:16:03
Rank: #21997 (-538)
25K → 30K
40:47 | 13:08/mi
20M
3:38:24
Rank: #22581 (-584)
30K → 20M
22:21 | 16:27/mi
21M
3:51:43
Rank: #22513 (+68)
20M → 21M
13:19 | 13:19/mi
35K· 21.75 mi
4:00:28
Rank: #22468 (+45)
21M → 35K
8:45 | 11:42/mi
23M
4:16:50
Rank: #22500 (-32)
35K → 23M
16:22 | 13:04/mi
24M
4:28:26
Rank: #22429 (+71)
23M → 24M
11:36 | 11:36/mi
40K· 24.85 mi
4:39:15
Rank: #22405 (+24)
24M → 40K
10:49 | 12:39/mi
25.2M
4:44:25
Rank: #22436 (-31)
40K → 25.2M
5:10 | 14:59/mi
Finish· 26.22 mi
4:55:08
Rank: #22360 (+76)
25.2M → Finish
10:43 | 10:31/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:07:19
Pace9:43 /mi
2nd Half
Distance13.11 mi
Time2:47:49
Pace12:48 /mi
📊Positive Split: 31.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:4626:528:3926:52
8:39
-
10K
6.21 mi11:49:3155:378:5728:45
9:15
+0:36
15K
9.32 mi12:20:321:26:389:1831:01
9:59
+0:44
20K
12.43 mi12:54:252:00:319:4233:53
10:54
+0:55
Half
13.11 mi13:01:132:07:199:436:48
9:58
-0:56
25K
15.53 mi13:29:102:35:1610:0027:57
11:32
+1:34
30K
18.64 mi14:09:573:16:0310:3140:47
13:08
+1:36
20M
20.00 mi14:32:183:38:2410:5522:21
16:27
+3:19
21M
21.00 mi14:45:373:51:4311:0213:19
13:19
-3:08
35K
21.75 mi14:54:224:00:2811:038:45
11:42
-1:37
23M
23.00 mi15:10:444:16:5011:1016:22
13:04
+1:22
24M
24.00 mi15:22:204:28:2611:1111:36
11:36
-1:28
40K
24.85 mi15:33:094:39:1511:1410:49
12:39
+1:03
25.2M
25.20 mi15:38:194:44:2511:175:10
14:59
+2:20
Finish
26.22 mi15:49:024:55:0811:1610:43
10:31
-4:28

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

8:39 /mi

Average Pace

11:16 /mi

Slowest Pace

16:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:09

35% of race

Time at Steady Pace

1:22:11

28% of race

Time at Slower Pace

1:48:48

37% of race

Average Pace: 11:15 /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 mi11:20:4626:528:3926:52
8:39
#18588
10K
6.21 mi11:49:3155:378:5728:45
9:15
#19697
15K
9.32 mi12:20:321:26:389:1831:01
9:59
#20632
20K
12.43 mi12:54:252:00:319:4233:53
10:54
#21205
Half
13.11 mi13:01:132:07:199:436:48
9:58
#21204
25K
15.53 mi13:29:102:35:1610:0027:57
11:32
#21459
30K
18.64 mi14:09:573:16:0310:3140:47
13:08
#21997
20M
20.00 mi14:32:183:38:2410:5522:21
16:27
#22581
21M
21.00 mi14:45:373:51:4311:0213:19
13:19
#22513
35K
21.75 mi14:54:224:00:2811:038:45
11:42
#22468
23M
23.00 mi15:10:444:16:5011:1016:22
13:04
#22500
24M
24.00 mi15:22:204:28:2611:1111:36
11:36
#22429
40K
24.85 mi15:33:094:39:1511:1410:49
12:39
#22405
25.2M
25.20 mi15:38:194:44:2511:175:10
14:59
#22436
Finish
26.22 mi15:49:024:55:0811:1610:43
10:31
#22360
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi185887107710721902(Top 86%)8826(Top 81%)8826(Top 189%)
10K6.21 mi3.10 mi19697-11097703-5967703-59620650(Top 81%)8180(Top 75%)8180(Top 176%)
15K9.32 mi3.11 mi20632-9358157-4548157-45421902(Top 86%)8826(Top 81%)8826(Top 189%)
20K12.43 mi3.11 mi21205-5738458-3018458-30122471(Top 88%)9172(Top 84%)9172(Top 197%)
Half13.11 mi0.68 mi21204+18461-38461-321418(Top 84%)8635(Top 79%)8635(Top 185%)
25K15.53 mi2.42 mi21459-2558621-1608621-16022467(Top 88%)9254(Top 85%)9254(Top 199%)
30K18.64 mi3.11 mi21997-5388969-3488969-34823449(Top 92%)9875(Top 90%)9875(Top 212%)
20M20.00 mi1.36 mi22581-5849288-3199288-31925287(Top 99%)10825(Top 99%)10825(Top 232%)
21M21.00 mi1.00 mi22513+689263+259263+2521264(Top 83%)8927(Top 82%)8927(Top 192%)
35K21.75 mi0.75 mi22468+459258+59258+521260(Top 83%)8977(Top 82%)8977(Top 193%)
23M23.00 mi1.25 mi22500-329299-419299-4122662(Top 89%)9683(Top 89%)9683(Top 208%)
24M24.00 mi1.00 mi22429+719271+289271+2820640(Top 81%)8759(Top 80%)8759(Top 188%)
40K24.85 mi0.85 mi22405+249284-139284-1321683(Top 85%)9313(Top 85%)9313(Top 200%)
25.2M25.20 mi0.35 mi22436-319304-209304-2023017(Top 90%)9933(Top 91%)9933(Top 213%)
Finish26.22 mi1.02 mi22360+769283+219283+2120091(Top 79%)8528(Top 78%)8528(Top 183%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 86%
×21stories
+97ft-345ft

Overall

21902

Females

8826

F18-39

8826

5K→10K

3.1 - 6.2 mi

Top 81%
×5stories
+79ft-138ft

Overall

20650

Females

8180

F18-39

8180

10K→15K

6.2 - 9.3 mi

Top 86%
×3stories
+67ft-78ft

Overall

21902

Females

8826

F18-39

8826

15K→20K

9.3 - 12.4 mi

Top 88%
×5stories
+106ft-86ft

Overall

22471

Females

9172

F18-39

9172

20K→Half

12.4 - 13.1 mi

Top 84%
×2stories
+19ft-37ft

Overall

21418

Females

8635

F18-39

8635

Half→25K

13.1 - 15.5 mi

Top 88%
×4stories
+66ft-88ft

Overall

22467

Females

9254

F18-39

9254

25K→30K

15.5 - 18.6 mi

Top 92%
×9stories
+181ft-148ft

Overall

23449

Females

9875

F18-39

9875

30K→20M

18.6 - 20.0 mi

Top 99%
×5stories
+64ft-50ft

Overall

25287

Females

10825

F18-39

10825

20M→21M

20.0 - 21.0 mi

Top 83%
×8stories
+106ft-24ft

Overall

21264

Females

8927

F18-39

8927

21M→35K

21.0 - 21.8 mi

Top 83%
×7stories
+17ft-86ft

Overall

21260

Females

8977

F18-39

8977

35K→23M

21.8 - 23.0 mi

Top 89%
×5stories
+23ft-63ft

Overall

22662

Females

9683

F18-39

9683

23M→24M

23.0 - 24.0 mi

Top 81%
×6stories
+12ft-82ft

Overall

20640

Females

8759

F18-39

8759

24M→40K

24.0 - 24.9 mi

Top 85%
×1story
+6ft-20ft

Overall

21683

Females

9313

F18-39

9313

40K→25.2M

24.9 - 25.2 mi

Top 90%
×1story
+13ft-16ft

Overall

23017

Females

9933

F18-39

9933

25.2M→Finish

25.2 - 26.2 mi

Top 79%
×2stories
+22ft-21ft

Overall

20091

Females

8528

F18-39

8528

Passing Analysis

Category:
Athletes Passed
743
Passed By
4515
Net Change
-3772
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18588
5K → 10K411150-1109#18588#19697
10K → 15K46981-935#19697#20632
15K → 20K47620-573#20632#21205
20K → Half2726+1#21205#21204
Half → 25K74329-255#21204#21459
25K → 30K52590-538#21459#21997
30K → 20M6590-584#21997#22581
20M → 21M9426+68#22581#22513
21M → 35K6924+45#22513#22468
35K → 23M4476-32#22468#22500
23M → 24M798+71#22500#22429
24M → 40K6844+24#22429#22405
40K → 25.2M1041-31#22405#22436
25.2M → Finish8610+76#22436#22360
TOTALS7434515-3772
📊

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