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BOSTON MARATHON 2024

Isabel Cox

Bib: 16942•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Top 49%
Division (F40-44)
#0 / 1613
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
8:12/mi
25:28
↑ 97↓ 3451.5%
10K· 6.21 mi
8:38/mi
52:18
↑ 79↓ 1380.4%
15K· 9.32 mi
8:56/mi
1:20:03
↑ 67↓ 78
20K· 12.43 mi
9:18/mi
1:48:57
↑ 106↓ 860.1%
Half· 13.11 mi
9:02/mi
1:55:07
↑ 19↓ 370.5%
25K· 15.53 mi
9:39/mi
2:18:32
↑ 66↓ 880.2%
30K· 18.64 mi
9:50/mi
2:49:05
↑ 181↓ 1480.2%
20M
9:27/mi
3:01:55
↑ 64↓ 500.2%
21M
10:11/mi
3:12:06
↑ 106↓ 241.6%
35K· 21.75 mi
8:41/mi
3:18:36
↑ 17↓ 861.7%
23M
9:45/mi
3:30:48
↑ 23↓ 630.6%
24M
9:18/mi
3:40:06
↓ 821.3%
40K· 24.85 mi
9:33/mi
3:48:16
↓ 200.3%
25.2M
10:29/mi
3:51:53
↑ 13↓ 160.2%
Finish· 26.22 mi
8:52/mi
4:00:55
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:07
Pace8:47 /mi
2nd Half
Distance13.11 mi
Time2:05:48
Pace9:36 /mi
📊Positive Split: 9.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:4325:288:1225:28
8:12
-
10K
6.21 mi11:42:3352:188:2526:50
8:38
+0:26
15K
9.32 mi12:10:181:20:038:3527:45
8:56
+0:18
20K
12.43 mi12:39:121:48:578:4628:54
9:18
+0:22
Half
13.11 mi12:45:221:55:078:476:10
9:02
-0:16
25K
15.53 mi13:08:472:18:328:5523:25
9:39
+0:37
30K
18.64 mi13:39:202:49:059:0430:33
9:50
+0:11
20M
20.00 mi13:52:103:01:559:0612:50
9:27
-0:23
21M
21.00 mi14:02:213:12:069:0910:11
10:11
+0:44
35K
21.75 mi14:08:513:18:369:086:30
8:41
-1:30
23M
23.00 mi14:21:033:30:489:1012:12
9:45
+1:04
24M
24.00 mi14:30:213:40:069:109:18
9:18
-0:27
40K
24.85 mi14:38:313:48:169:118:10
9:33
+0:15
25.2M
25.20 mi14:42:083:51:539:123:37
10:29
+0:56
Finish
26.22 mi14:51:104:00:559:129:02
8:52
-1:37

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

8:12 /mi

Average Pace

9:12 /mi

Slowest Pace

10:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:35:35

40% of race

Time at Steady Pace

1:05:22

27% of race

Time at Slower Pace

1:19:58

33% of race

Average Pace: 9:11 /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 mi11:15:4325:288:1225:28
8:12
#16016
10K
6.21 mi11:42:3352:188:2526:50
8:38
#17023
15K
9.32 mi12:10:181:20:038:3527:45
8:56
#17597
20K
12.43 mi12:39:121:48:578:4628:54
9:18
#17860
Half
13.11 mi12:45:221:55:078:476:10
9:02
#17888
25K
15.53 mi13:08:472:18:328:5523:25
9:39
#17910
30K
18.64 mi13:39:202:49:059:0430:33
9:50
#17682
20M
20.00 mi13:52:103:01:559:0612:50
9:27
#17437
21M
21.00 mi14:02:213:12:069:0910:11
10:11
#17214
35K
21.75 mi14:08:513:18:369:086:30
8:41
#16998
23M
23.00 mi14:21:033:30:489:1012:12
9:45
#16868
24M
24.00 mi14:30:213:40:069:109:18
9:18
#16719
40K
24.85 mi14:38:313:48:169:118:10
9:33
#16566
25.2M
25.20 mi14:42:083:51:539:123:37
10:29
#16495
Finish
26.22 mi14:51:104:00:559:129:02
8:52
#16368
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi160165569556918591(Top 73%)7020(Top 64%)7020(Top 435%)
10K6.21 mi3.10 mi17023-10076165-5966165-59618054(Top 71%)6760(Top 62%)6760(Top 419%)
15K9.32 mi3.11 mi17597-5746486-3216486-32118591(Top 73%)7020(Top 64%)7020(Top 435%)
20K12.43 mi3.11 mi17860-2636666-1806666-18018560(Top 73%)7029(Top 64%)7029(Top 436%)
Half13.11 mi0.68 mi17888-286688-226688-2218454(Top 72%)7023(Top 64%)7023(Top 435%)
25K15.53 mi2.42 mi17910-226720-326720-3218067(Top 71%)6863(Top 63%)6863(Top 425%)
30K18.64 mi3.11 mi17682+2286644+766644+7616758(Top 66%)6372(Top 58%)6372(Top 395%)
20M20.00 mi1.36 mi17437+2456535+1096535+10914297(Top 56%)5298(Top 48%)5298(Top 328%)
21M21.00 mi1.00 mi17214+2236443+926443+9213707(Top 54%)5161(Top 47%)5161(Top 320%)
35K21.75 mi0.75 mi16998+2166347+966347+9611804(Top 46%)4197(Top 38%)4197(Top 260%)
23M23.00 mi1.25 mi16868+1306301+466301+4614551(Top 57%)5689(Top 52%)5689(Top 353%)
24M24.00 mi1.00 mi16719+1496238+636238+6313570(Top 53%)5223(Top 48%)5223(Top 324%)
40K24.85 mi0.85 mi16566+1536185+536185+5313343(Top 52%)5217(Top 48%)5217(Top 323%)
25.2M25.20 mi0.35 mi16495+716162+236162+2312823(Top 50%)5025(Top 46%)5025(Top 312%)
Finish26.22 mi1.02 mi16368+1276127+356127+3513566(Top 53%)5271(Top 48%)5271(Top 327%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21story building
+97ft-345ft

Overall

18591

Females

7020

F40-44

7020

5K→10K

3.1 - 6.2 mi

Top 71%
×5story building
+79ft-138ft

Overall

18054

Females

6760

F40-44

6760

10K→15K

6.2 - 9.3 mi

Top 73%
×3story building
+67ft-78ft

Overall

18591

Females

7020

F40-44

7020

15K→20K

9.3 - 12.4 mi

Top 73%
×5story building
+106ft-86ft

Overall

18560

Females

7029

F40-44

7029

20K→Half

12.4 - 13.1 mi

Top 72%
×2story building
+19ft-37ft

Overall

18454

Females

7023

F40-44

7023

Half→25K

13.1 - 15.5 mi

Top 71%
×4story building
+66ft-88ft

Overall

18067

Females

6863

F40-44

6863

25K→30K

15.5 - 18.6 mi

Top 66%
×9story building
+181ft-148ft

Overall

16758

Females

6372

F40-44

6372

30K→20M

18.6 - 20.0 mi

Top 56%
×5story building
+64ft-50ft

Overall

14297

Females

5298

F40-44

5298

20M→21M

20.0 - 21.0 mi

Top 54%
×8story building
+106ft-24ft

Overall

13707

Females

5161

F40-44

5161

21M→35K

21.0 - 21.8 mi

Top 46%
×7story building
+17ft-86ft

Overall

11804

Females

4197

F40-44

4197

35K→23M

21.8 - 23.0 mi

Top 57%
×5story building
+23ft-63ft

Overall

14551

Females

5689

F40-44

5689

23M→24M

23.0 - 24.0 mi

Top 53%
×6story building
+12ft-82ft

Overall

13570

Females

5223

F40-44

5223

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

13343

Females

5217

F40-44

5217

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

12823

Females

5025

F40-44

5025

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2story building
+22ft-21ft

Overall

13566

Females

5271

F40-44

5271

Passing Analysis

Category:
Athletes Passed
2352
Passed By
2704
Net Change
-352
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16016
5K → 10K601067-1007#16016#17023
10K → 15K94668-574#17023#17597
15K → 20K176439-263#17597#17860
20K → Half3866-28#17860#17888
Half → 25K190212-22#17888#17910
25K → 30K359131+228#17910#17682
30K → 20M26015+245#17682#17437
20M → 21M23411+223#17437#17214
21M → 35K2193+216#17214#16998
35K → 23M16232+130#16998#16868
23M → 24M16314+149#16868#16719
24M → 40K17522+153#16719#16566
40K → 25.2M765+71#16566#16495
25.2M → Finish14619+127#16495#16368
TOTALS23522704-352
📊

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