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BOSTON MARATHON 2024

Laura Cobb

Bib: 19083•F

OH

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Top 48%
Masters (Masters Women)
#0 / 6263
Top 39%
Division (F40-44)
#0 / 1613
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:20
Rank: #17656
Start → 5K
26:20 | 8:29/mi
10K· 6.21 mi
53:10
Rank: #17849 (-193)
5K → 10K
26:50 | 8:38/mi
15K· 9.32 mi
1:20:48
Rank: #18031 (-182)
10K → 15K
27:38 | 8:54/mi
20K· 12.43 mi
1:48:05
Rank: #17502 (+529)
15K → 20K
27:17 | 8:47/mi
Half· 13.11 mi
1:54:02
Rank: #17445 (+57)
20K → Half
5:57 | 8:43/mi
25K· 15.53 mi
2:15:45
Rank: #17051 (+394)
Half → 25K
21:43 | 8:57/mi
30K· 18.64 mi
2:43:40
Rank: #16306 (+745)
25K → 30K
27:55 | 8:59/mi
20M
2:56:04
Rank: #16050 (+256)
30K → 20M
12:24 | 9:07/mi
21M
3:05:41
Rank: #15775 (+275)
20M → 21M
9:37 | 9:37/mi
35K· 21.75 mi
3:12:06
Rank: #15598 (+177)
21M → 35K
6:25 | 8:35/mi
23M
3:23:27
Rank: #15345 (+253)
35K → 23M
11:21 | 9:04/mi
24M
3:32:18
Rank: #15166 (+179)
23M → 24M
8:51 | 8:51/mi
40K· 24.85 mi
3:40:17
Rank: #15009 (+157)
24M → 40K
7:59 | 9:20/mi
25.2M
3:43:45
Rank: #14921 (+88)
40K → 25.2M
3:28 | 10:03/mi
Finish· 26.22 mi
3:52:41
Rank: #14813 (+108)
25.2M → Finish
8:56 | 8:46/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:02
Pace8:42 /mi
2nd Half
Distance13.11 mi
Time1:58:39
Pace9:03 /mi
📊Positive Split: 4.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:5426:208:2926:20
8:29
-
10K
6.21 mi11:46:4453:108:3326:50
8:38
+0:09
15K
9.32 mi12:14:221:20:488:4027:38
8:54
+0:16
20K
12.43 mi12:41:391:48:058:4227:17
8:47
-0:07
Half
13.11 mi12:47:361:54:028:425:57
8:43
-0:04
25K
15.53 mi13:09:192:15:458:4421:43
8:57
+0:14
30K
18.64 mi13:37:142:43:408:4727:55
8:59
+0:02
20M
20.00 mi13:49:382:56:048:4812:24
9:07
+0:08
21M
21.00 mi13:59:153:05:418:519:37
9:37
+0:30
35K
21.75 mi14:05:403:12:068:506:25
8:35
-1:02
23M
23.00 mi14:17:013:23:278:5111:21
9:04
+0:29
24M
24.00 mi14:25:523:32:188:518:51
8:51
-0:13
40K
24.85 mi14:33:513:40:178:527:59
9:20
+0:29
25.2M
25.20 mi14:37:193:43:458:533:28
10:03
+0:43
Finish
26.22 mi14:46:153:52:418:538:56
8:46
-1:17

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

8:29 /mi

Average Pace

8:53 /mi

Slowest Pace

10:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:31:37

91% of race

Time at Steady Pace

17:36

8% of race

Time at Slower Pace

3:28

1% of race

Average Pace: 8:52 /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 mi11:19:5426:208:2926:20
8:29
#17656
10K
6.21 mi11:46:4453:108:3326:50
8:38
#17849
15K
9.32 mi12:14:221:20:488:4027:38
8:54
#18031
20K
12.43 mi12:41:391:48:058:4227:17
8:47
#17502
Half
13.11 mi12:47:361:54:028:425:57
8:43
#17445
25K
15.53 mi13:09:192:15:458:4421:43
8:57
#17051
30K
18.64 mi13:37:142:43:408:4727:55
8:59
#16306
20M
20.00 mi13:49:382:56:048:4812:24
9:07
#16050
21M
21.00 mi13:59:153:05:418:519:37
9:37
#15775
35K
21.75 mi14:05:403:12:068:506:25
8:35
#15598
23M
23.00 mi14:17:013:23:278:5111:21
9:04
#15345
24M
24.00 mi14:25:523:32:188:518:51
8:51
#15166
40K
24.85 mi14:33:513:40:178:527:59
9:20
#15009
25.2M
25.20 mi14:37:193:43:458:533:28
10:03
#14921
Finish
26.22 mi14:46:153:52:418:538:56
8:46
#14813
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi176566563656318422(Top 72%)6937(Top 64%)6937(Top 430%)
10K6.21 mi3.10 mi17849-1936650-876650-8718061(Top 71%)6767(Top 62%)6767(Top 420%)
15K9.32 mi3.11 mi18031-1826758-1086758-10818422(Top 72%)6937(Top 64%)6937(Top 430%)
20K12.43 mi3.11 mi17502+5296463+2956463+29516305(Top 64%)5774(Top 53%)5774(Top 358%)
Half13.11 mi0.68 mi17445+576439+246439+2417012(Top 67%)6240(Top 57%)6240(Top 387%)
25K15.53 mi2.42 mi17051+3946229+2106229+21015341(Top 60%)5365(Top 49%)5365(Top 333%)
30K18.64 mi3.11 mi16306+7455856+3735856+37313174(Top 52%)4380(Top 40%)4380(Top 272%)
20M20.00 mi1.36 mi16050+2565739+1175739+11712787(Top 50%)4462(Top 41%)4462(Top 277%)
21M21.00 mi1.00 mi15775+2755625+1145625+11411382(Top 45%)3945(Top 36%)3945(Top 245%)
35K21.75 mi0.75 mi15598+1775550+755550+7511243(Top 44%)3905(Top 36%)3905(Top 242%)
23M23.00 mi1.25 mi15345+2535450+1005450+10011544(Top 45%)4188(Top 38%)4188(Top 260%)
24M24.00 mi1.00 mi15166+1795381+695381+6911425(Top 45%)4136(Top 38%)4136(Top 256%)
40K24.85 mi0.85 mi15009+1575330+515330+5112479(Top 49%)4785(Top 44%)4785(Top 297%)
25.2M25.20 mi0.35 mi14921+885298+325298+3211248(Top 44%)4239(Top 39%)4239(Top 263%)
Finish26.22 mi1.02 mi14813+1085271+275271+2713024(Top 51%)4990(Top 46%)4990(Top 309%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21stories
+97ft-345ft

Overall

18422

Females

6937

F40-44

6937

5K→10K

3.1 - 6.2 mi

Top 71%
×5stories
+79ft-138ft

Overall

18061

Females

6767

F40-44

6767

10K→15K

6.2 - 9.3 mi

Top 72%
×3stories
+67ft-78ft

Overall

18422

Females

6937

F40-44

6937

15K→20K

9.3 - 12.4 mi

Top 64%
×5stories
+106ft-86ft

Overall

16305

Females

5774

F40-44

5774

20K→Half

12.4 - 13.1 mi

Top 67%
×2stories
+19ft-37ft

Overall

17012

Females

6240

F40-44

6240

Half→25K

13.1 - 15.5 mi

Top 60%
×4stories
+66ft-88ft

Overall

15341

Females

5365

F40-44

5365

25K→30K

15.5 - 18.6 mi

Top 52%
×9stories
+181ft-148ft

Overall

13174

Females

4380

F40-44

4380

30K→20M

18.6 - 20.0 mi

Top 50%
×5stories
+64ft-50ft

Overall

12787

Females

4462

F40-44

4462

20M→21M

20.0 - 21.0 mi

Top 45%
×8stories
+106ft-24ft

Overall

11382

Females

3945

F40-44

3945

21M→35K

21.0 - 21.8 mi

Top 44%
×7stories
+17ft-86ft

Overall

11243

Females

3905

F40-44

3905

35K→23M

21.8 - 23.0 mi

Top 45%
×5stories
+23ft-63ft

Overall

11544

Females

4188

F40-44

4188

23M→24M

23.0 - 24.0 mi

Top 45%
×6stories
+12ft-82ft

Overall

11425

Females

4136

F40-44

4136

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

12479

Females

4785

F40-44

4785

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

11248

Females

4239

F40-44

4239

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2stories
+22ft-21ft

Overall

13024

Females

4990

F40-44

4990

Passing Analysis

Category:
Athletes Passed
3796
Passed By
953
Net Change
+2843
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17656
5K → 10K209402-193#17656#17849
10K → 15K180362-182#17849#18031
15K → 20K55425+529#18031#17502
20K → Half8023+57#17502#17445
Half → 25K42632+394#17445#17051
25K → 30K75510+745#17051#16306
30K → 20M26610+256#16306#16050
20M → 21M28510+275#16050#15775
21M → 35K1814+177#15775#15598
35K → 23M26613+253#15598#15345
23M → 24M1867+179#15345#15166
24M → 40K17417+157#15166#15009
40K → 25.2M968+88#15009#14921
25.2M → Finish13830+108#14921#14813
TOTALS3796953+2843
📊

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