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BOSTON MARATHON 2024

Kara Mosley

Bib: 20470•F

NM

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Top 45%
Masters (Masters Women)
#0 / 6263
Top 34%
Division (F45-49)
#0 / 1753
Top 43%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:00/mi
24:51
↑ 97↓ 3451.5%
10K· 6.21 mi
8:05/mi
49:57
↑ 79↓ 1380.4%
15K· 9.32 mi
8:13/mi
1:15:28
↑ 67↓ 78
20K· 12.43 mi
8:29/mi
1:41:49
↑ 106↓ 860.1%
Half· 13.11 mi
8:23/mi
1:47:32
↑ 19↓ 370.5%
25K· 15.53 mi
8:47/mi
2:08:50
↑ 66↓ 880.2%
30K· 18.64 mi
9:11/mi
2:37:21
↑ 181↓ 1480.2%
20M
9:17/mi
2:49:58
↑ 64↓ 500.2%
21M
9:50/mi
2:59:48
↑ 106↓ 241.6%
35K· 21.75 mi
9:09/mi
3:06:39
↑ 17↓ 861.7%
23M
9:30/mi
3:18:33
↑ 23↓ 630.6%
24M
9:18/mi
3:27:51
↓ 821.3%
40K· 24.85 mi
9:39/mi
3:36:06
↓ 200.3%
25.2M
10:44/mi
3:39:48
↑ 13↓ 160.2%
Finish· 26.22 mi
9:14/mi
3:49:13
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:32
Pace8:12 /mi
2nd Half
Distance13.11 mi
Time2:01:41
Pace9:17 /mi
📊Positive Split: 13.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:2524:518:0024:51
8:00
-
10K
6.21 mi11:44:3149:578:0225:06
8:05
+0:05
15K
9.32 mi12:10:021:15:288:0625:31
8:13
+0:08
20K
12.43 mi12:36:231:41:498:1226:21
8:29
+0:16
Half
13.11 mi12:42:061:47:328:125:43
8:23
-0:06
25K
15.53 mi13:03:242:08:508:1821:18
8:47
+0:24
30K
18.64 mi13:31:552:37:218:2628:31
9:11
+0:24
20M
20.00 mi13:44:322:49:588:3012:37
9:17
+0:06
21M
21.00 mi13:54:222:59:488:349:50
9:50
+0:33
35K
21.75 mi14:01:133:06:398:356:51
9:09
-0:41
23M
23.00 mi14:13:073:18:338:3811:54
9:30
+0:21
24M
24.00 mi14:22:253:27:518:409:18
9:18
-0:12
40K
24.85 mi14:30:403:36:068:428:15
9:39
+0:21
25.2M
25.20 mi14:34:223:39:488:433:42
10:44
+1:05
Finish
26.22 mi14:43:473:49:138:459:25
9:14
-1:30

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

8:00 /mi

Average Pace

8:45 /mi

Slowest Pace

10:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:08:50

56% of race

Time at Steady Pace

1:18:36

34% of race

Time at Slower Pace

21:47

10% of race

Average Pace: 8:45 /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 mi11:19:2524:518:0024:51
8:00
#14642
10K
6.21 mi11:44:3149:578:0225:06
8:05
#14706
15K
9.32 mi12:10:021:15:288:0625:31
8:13
#14692
20K
12.43 mi12:36:231:41:498:1226:21
8:29
#14683
Half
13.11 mi12:42:061:47:328:125:43
8:23
#14709
25K
15.53 mi13:03:242:08:508:1821:18
8:47
#14603
30K
18.64 mi13:31:552:37:218:2628:31
9:11
#14476
20M
20.00 mi13:44:322:49:588:3012:37
9:17
#14369
21M
21.00 mi13:54:222:59:488:349:50
9:50
#14215
35K
21.75 mi14:01:133:06:398:356:51
9:09
#14178
23M
23.00 mi14:13:073:18:338:3811:54
9:30
#14143
24M
24.00 mi14:22:253:27:518:409:18
9:18
#14116
40K
24.85 mi14:30:403:36:068:428:15
9:39
#14087
25.2M
25.20 mi14:34:223:39:488:433:42
10:44
#14061
Finish
26.22 mi14:43:473:49:138:459:25
9:14
#14101
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi146424719471914804(Top 58%)4851(Top 44%)4851(Top 277%)
10K6.21 mi3.10 mi14706-644753-344753-3414748(Top 58%)4779(Top 44%)4779(Top 273%)
15K9.32 mi3.11 mi14692+144757-44757-414804(Top 58%)4851(Top 44%)4851(Top 277%)
20K12.43 mi3.11 mi14683+94767-104767-1014716(Top 58%)4841(Top 44%)4841(Top 276%)
Half13.11 mi0.68 mi14709-264792-254792-2515075(Top 59%)5089(Top 47%)5089(Top 290%)
25K15.53 mi2.42 mi14603+1064758+344758+3414507(Top 57%)4887(Top 45%)4887(Top 279%)
30K18.64 mi3.11 mi14476+1274767-94767-914108(Top 55%)4920(Top 45%)4920(Top 281%)
20M20.00 mi1.36 mi14369+1074743+244743+2413568(Top 53%)4892(Top 45%)4892(Top 279%)
21M21.00 mi1.00 mi14215+1544718+254718+2512287(Top 48%)4410(Top 40%)4410(Top 252%)
35K21.75 mi0.75 mi14178+374723-54723-514084(Top 55%)5365(Top 49%)5365(Top 306%)
23M23.00 mi1.25 mi14143+354761-384761-3813553(Top 53%)5184(Top 47%)5184(Top 296%)
24M24.00 mi1.00 mi14116+274796-354796-3513549(Top 53%)5202(Top 48%)5202(Top 297%)
40K24.85 mi0.85 mi14087+294811-154811-1513715(Top 54%)5390(Top 49%)5390(Top 307%)
25.2M25.20 mi0.35 mi14061+264822-114822-1113636(Top 53%)5370(Top 49%)5370(Top 306%)
Finish26.22 mi1.02 mi14101-404870-484870-4815325(Top 60%)6157(Top 56%)6157(Top 351%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21story building
+97ft-345ft

Overall

14804

Females

4851

F45-49

4851

5K→10K

3.1 - 6.2 mi

Top 58%
×5story building
+79ft-138ft

Overall

14748

Females

4779

F45-49

4779

10K→15K

6.2 - 9.3 mi

Top 58%
×3story building
+67ft-78ft

Overall

14804

Females

4851

F45-49

4851

15K→20K

9.3 - 12.4 mi

Top 58%
×5story building
+106ft-86ft

Overall

14716

Females

4841

F45-49

4841

20K→Half

12.4 - 13.1 mi

Top 59%
×2story building
+19ft-37ft

Overall

15075

Females

5089

F45-49

5089

Half→25K

13.1 - 15.5 mi

Top 57%
×4story building
+66ft-88ft

Overall

14507

Females

4887

F45-49

4887

25K→30K

15.5 - 18.6 mi

Top 55%
×9story building
+181ft-148ft

Overall

14108

Females

4920

F45-49

4920

30K→20M

18.6 - 20.0 mi

Top 53%
×5story building
+64ft-50ft

Overall

13568

Females

4892

F45-49

4892

20M→21M

20.0 - 21.0 mi

Top 48%
×8story building
+106ft-24ft

Overall

12287

Females

4410

F45-49

4410

21M→35K

21.0 - 21.8 mi

Top 55%
×7story building
+17ft-86ft

Overall

14084

Females

5365

F45-49

5365

35K→23M

21.8 - 23.0 mi

Top 53%
×5story building
+23ft-63ft

Overall

13553

Females

5184

F45-49

5184

23M→24M

23.0 - 24.0 mi

Top 53%
×6story building
+12ft-82ft

Overall

13549

Females

5202

F45-49

5202

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

13715

Females

5390

F45-49

5390

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

13636

Females

5370

F45-49

5370

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2story building
+22ft-21ft

Overall

15325

Females

6157

F45-49

6157

Passing Analysis

Category:
Athletes Passed
2328
Passed By
1787
Net Change
+541
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14642
5K → 10K260324-64#14642#14706
10K → 15K239225+14#14706#14692
15K → 20K246237+9#14692#14683
20K → Half3157-26#14683#14709
Half → 25K260154+106#14709#14603
25K → 30K325198+127#14603#14476
30K → 20M19790+107#14476#14369
20M → 21M20955+154#14369#14215
21M → 35K9558+37#14215#14178
35K → 23M138103+35#14178#14143
23M → 24M11184+27#14143#14116
24M → 40K9263+29#14116#14087
40K → 25.2M5529+26#14087#14061
25.2M → Finish70110-40#14061#14101
TOTALS23281787+541
📊

Passing Visuals

Category:
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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