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BOSTON MARATHON 2024

Shelby Stubbs

Bib: 14924•F

UT

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 47%
Gender (Female)
#0 / 10924
Top 34%
Division (F18-39)
#0 / 4660
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
8:07/mi
25:14
↑ 97↓ 3451.5%
10K· 6.21 mi
8:13/mi
50:46
↑ 79↓ 1380.4%
15K· 9.32 mi
7:47/mi
1:14:58
↑ 67↓ 78
20K· 12.43 mi
7:48/mi
1:39:13
↑ 106↓ 860.1%
Half· 13.11 mi
7:42/mi
1:44:28
↑ 19↓ 370.5%
25K· 15.53 mi
8:02/mi
2:03:56
↑ 66↓ 880.2%
30K· 18.64 mi
9:20/mi
2:32:55
↑ 181↓ 1480.2%
20M
8:46/mi
2:44:50
↑ 64↓ 500.2%
21M
9:05/mi
2:53:55
↑ 106↓ 241.6%
35K· 21.75 mi
8:37/mi
3:00:22
↑ 17↓ 861.7%
23M
10:02/mi
3:12:56
↑ 23↓ 630.6%
24M
8:20/mi
3:21:16
↓ 821.3%
40K· 24.85 mi
8:45/mi
3:28:45
↓ 200.3%
25.2M
9:31/mi
3:32:02
↑ 13↓ 160.2%
Finish· 26.22 mi
7:54/mi
3:40:05
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:28
Pace7:58 /mi
2nd Half
Distance13.11 mi
Time1:55:37
Pace8:49 /mi
📊Positive Split: 10.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:2725:148:0725:14
8:07
-
10K
6.21 mi11:21:5950:468:1025:32
8:13
+0:06
15K
9.32 mi11:46:111:14:588:0324:12
7:47
-0:26
20K
12.43 mi12:10:261:39:137:5924:15
7:48
+0:01
Half
13.11 mi12:15:411:44:287:585:15
7:42
-0:06
25K
15.53 mi12:35:092:03:567:5919:28
8:02
+0:20
30K
18.64 mi13:04:082:32:558:1228:59
9:20
+1:18
20M
20.00 mi13:16:032:44:508:1411:55
8:46
-0:34
21M
21.00 mi13:25:082:53:558:179:05
9:05
+0:19
35K
21.75 mi13:31:353:00:228:186:27
8:37
-0:28
23M
23.00 mi13:44:093:12:568:2312:34
10:02
+1:25
24M
24.00 mi13:52:293:21:168:238:20
8:20
-1:42
40K
24.85 mi13:59:583:28:458:247:29
8:45
+0:25
25.2M
25.20 mi14:03:153:32:028:253:17
9:31
+0:46
Finish
26.22 mi14:11:183:40:058:248:03
7:54
-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

7:42 /mi

Average Pace

8:24 /mi

Slowest Pace

10:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:01:45

28% of race

Time at Steady Pace

1:25:01

39% of race

Time at Slower Pace

1:13:19

33% of race

Average Pace: 8:24 /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 mi10:56:2725:148:0725:14
8:07
#15515
10K
6.21 mi11:21:5950:468:1025:32
8:13
#15577
15K
9.32 mi11:46:111:14:588:0324:12
7:47
#14341
20K
12.43 mi12:10:261:39:137:5924:15
7:48
#13303
Half
13.11 mi12:15:411:44:287:585:15
7:42
#13112
25K
15.53 mi12:35:092:03:567:5919:28
8:02
#12523
30K
18.64 mi13:04:082:32:558:1228:59
9:20
#12977
20M
20.00 mi13:16:032:44:508:1411:55
8:46
#12766
21M
21.00 mi13:25:082:53:558:179:05
9:05
#12501
35K
21.75 mi13:31:353:00:228:186:27
8:37
#12447
23M
23.00 mi13:44:093:12:568:2312:34
10:02
#12621
24M
24.00 mi13:52:293:21:168:238:20
8:20
#12418
40K
24.85 mi13:59:583:28:458:247:29
8:45
#12269
25.2M
25.20 mi14:03:153:32:028:253:17
9:31
#12195
Finish
26.22 mi14:11:183:40:058:248:03
7:54
#12011
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi155155259525911859(Top 46%)3160(Top 29%)3160(Top 68%)
10K6.21 mi3.10 mi15577-625282-235282-2315646(Top 61%)5305(Top 49%)5305(Top 114%)
15K9.32 mi3.11 mi14341+12364541+7414541+74111859(Top 46%)3160(Top 29%)3160(Top 68%)
20K12.43 mi3.11 mi13303+10383958+5833958+58310483(Top 41%)2573(Top 24%)2573(Top 55%)
Half13.11 mi0.68 mi13112+1913857+1013857+10110643(Top 42%)2635(Top 24%)2635(Top 57%)
25K15.53 mi2.42 mi12523+5893549+3083549+30810391(Top 41%)2685(Top 25%)2685(Top 58%)
30K18.64 mi3.11 mi12977-4543898-3493898-34914745(Top 58%)5281(Top 48%)5281(Top 113%)
20M20.00 mi1.36 mi12766+2113840+583840+5810950(Top 43%)3448(Top 32%)3448(Top 74%)
21M21.00 mi1.00 mi12501+2653746+943746+948988(Top 35%)2698(Top 25%)2698(Top 58%)
35K21.75 mi0.75 mi12447+543763-173763-1711437(Top 45%)3989(Top 37%)3989(Top 86%)
23M23.00 mi1.25 mi12621-1743905-1423905-14215601(Top 61%)6208(Top 57%)6208(Top 133%)
24M24.00 mi1.00 mi12418+2033850+553850+558505(Top 33%)2721(Top 25%)2721(Top 58%)
40K24.85 mi0.85 mi12269+1493810+403810+409665(Top 38%)3404(Top 31%)3404(Top 73%)
25.2M25.20 mi0.35 mi12195+743793+173793+178893(Top 35%)3111(Top 28%)3111(Top 67%)
Finish26.22 mi1.02 mi12011+1843734+593734+597975(Top 31%)2575(Top 24%)2575(Top 55%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21story building
+97ft-345ft

Overall

11859

Females

3160

F18-39

3160

5K→10K

3.1 - 6.2 mi

Top 61%
×5story building
+79ft-138ft

Overall

15646

Females

5305

F18-39

5305

10K→15K

6.2 - 9.3 mi

Top 46%
×3story building
+67ft-78ft

Overall

11859

Females

3160

F18-39

3160

15K→20K

9.3 - 12.4 mi

Top 41%
×5story building
+106ft-86ft

Overall

10483

Females

2573

F18-39

2573

20K→Half

12.4 - 13.1 mi

Top 42%
×2story building
+19ft-37ft

Overall

10643

Females

2635

F18-39

2635

Half→25K

13.1 - 15.5 mi

Top 41%
×4story building
+66ft-88ft

Overall

10391

Females

2685

F18-39

2685

25K→30K

15.5 - 18.6 mi

Top 58%
×9story building
+181ft-148ft

Overall

14745

Females

5281

F18-39

5281

30K→20M

18.6 - 20.0 mi

Top 43%
×5story building
+64ft-50ft

Overall

10950

Females

3448

F18-39

3448

20M→21M

20.0 - 21.0 mi

Top 35%
×8story building
+106ft-24ft

Overall

8988

Females

2698

F18-39

2698

21M→35K

21.0 - 21.8 mi

Top 45%
×7story building
+17ft-86ft

Overall

11437

Females

3989

F18-39

3989

35K→23M

21.8 - 23.0 mi

Top 61%
×5story building
+23ft-63ft

Overall

15601

Females

6208

F18-39

6208

23M→24M

23.0 - 24.0 mi

Top 33%
×6story building
+12ft-82ft

Overall

8505

Females

2721

F18-39

2721

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

9665

Females

3404

F18-39

3404

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

8893

Females

3111

F18-39

3111

25.2M→Finish

25.2 - 26.2 mi

Top 31%
×2story building
+22ft-21ft

Overall

7975

Females

2575

F18-39

2575

Passing Analysis

Category:
Athletes Passed
4837
Passed By
1333
Net Change
+3504
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15515
5K → 10K257319-62#15515#15577
10K → 15K12393+1236#15577#14341
15K → 20K10413+1038#14341#13303
20K → Half1910+191#13303#13112
Half → 25K5978+589#13112#12523
25K → 30K153607-454#12523#12977
30K → 20M24938+211#12977#12766
20M → 21M28015+265#12766#12501
21M → 35K9642+54#12501#12447
35K → 23M82256-174#12447#12621
23M → 24M21310+203#12621#12418
24M → 40K16213+149#12418#12269
40K → 25.2M8511+74#12269#12195
25.2M → Finish1928+184#12195#12011
TOTALS48371333+3504
📊

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