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BOSTON MARATHON 2024

Casey Nelson

Bib: 8191•F

MA

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 23%
Gender (Female)
#0 / 10924
Top 8%
Division (F18-39)
#0 / 4660
Top 16%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:53
Rank: #5019
Start → 5K
20:53 | 6:43/mi
10K· 6.21 mi
42:06
Rank: #5228 (-209)
5K → 10K
21:13 | 6:50/mi
15K· 9.32 mi
1:03:10
Rank: #4984 (+244)
10K → 15K
21:04 | 6:47/mi
20K· 12.43 mi
1:24:14
Rank: #4579 (+405)
15K → 20K
21:04 | 6:47/mi
Half· 13.11 mi
1:28:46
Rank: #4504 (+75)
20K → Half
4:32 | 6:39/mi
25K· 15.53 mi
1:48:19
Rank: #5566 (-1062)
Half → 25K
19:33 | 8:04/mi
30K· 18.64 mi
2:12:08
Rank: #5512 (+54)
25K → 30K
23:49 | 7:40/mi
20M
2:23:37
Rank: #5695 (-183)
30K → 20M
11:29 | 8:27/mi
21M
2:32:09
Rank: #5651 (+44)
20M → 21M
8:32 | 8:32/mi
35K· 21.75 mi
2:38:17
Rank: #5705 (-54)
21M → 35K
6:08 | 8:12/mi
23M
2:49:18
Rank: #5867 (-162)
35K → 23M
11:01 | 8:48/mi
24M
2:58:00
Rank: #5993 (-126)
23M → 24M
8:42 | 8:42/mi
40K· 24.85 mi
3:05:09
Rank: #5978 (+15)
24M → 40K
7:09 | 8:22/mi
25.2M
3:08:11
Rank: #5936 (+42)
40K → 25.2M
3:02 | 8:48/mi
Finish· 26.22 mi
3:16:16
Rank: #5980 (-44)
25.2M → Finish
8:05 | 7:56/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:46
Pace6:46 /mi
2nd Half
Distance13.11 mi
Time1:47:30
Pace8:12 /mi
📊Positive Split: 21.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:1020:536:4320:53
6:43
-
10K
6.21 mi11:07:2342:066:4721:13
6:50
+0:07
15K
9.32 mi11:28:271:03:106:4721:04
6:47
-0:03
20K
12.43 mi11:49:311:24:146:4721:04
6:47
0:00
Half
13.11 mi11:54:031:28:466:464:32
6:39
-0:08
25K
15.53 mi12:13:361:48:196:5819:33
8:04
+1:25
30K
18.64 mi12:37:252:12:087:0523:49
7:40
-0:24
20M
20.00 mi12:48:542:23:377:1111:29
8:27
+0:47
21M
21.00 mi12:57:262:32:097:158:32
8:32
+0:05
35K
21.75 mi13:03:342:38:177:176:08
8:12
-0:20
23M
23.00 mi13:14:352:49:187:2211:01
8:48
+0:36
24M
24.00 mi13:23:172:58:007:258:42
8:42
-0:06
40K
24.85 mi13:30:263:05:097:277:09
8:22
-0:20
25.2M
25.20 mi13:33:283:08:117:283:02
8:48
+0:26
Finish
26.22 mi13:41:333:16:167:298:05
7:56
-0:52

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

6:39 /mi

Average Pace

7:29 /mi

Slowest Pace

8:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:28:46

45% of race

Time at Steady Pace

1:16:13

39% of race

Time at Slower Pace

31:17

16% of race

Average Pace: 7:29 /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 mi10:46:1020:536:4320:53
6:43
#5019
10K
6.21 mi11:07:2342:066:4721:13
6:50
#5228
15K
9.32 mi11:28:271:03:106:4721:04
6:47
#4984
20K
12.43 mi11:49:311:24:146:4721:04
6:47
#4579
Half
13.11 mi11:54:031:28:466:464:32
6:39
#4504
25K
15.53 mi12:13:361:48:196:5819:33
8:04
#5566
30K
18.64 mi12:37:252:12:087:0523:49
7:40
#5512
20M
20.00 mi12:48:542:23:377:1111:29
8:27
#5695
21M
21.00 mi12:57:262:32:097:158:32
8:32
#5651
35K
21.75 mi13:03:342:38:177:176:08
8:12
#5705
23M
23.00 mi13:14:352:49:187:2211:01
8:48
#5867
24M
24.00 mi13:23:172:58:007:258:42
8:42
#5993
40K
24.85 mi13:30:263:05:097:277:09
8:22
#5978
25.2M
25.20 mi13:33:283:08:117:283:02
8:48
#5936
Finish
26.22 mi13:41:333:16:167:298:05
7:56
#5980
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi50193633634586(Top 18%)311(Top 3%)311(Top 7%)
10K6.21 mi3.10 mi5228-209394-31394-315461(Top 21%)445(Top 4%)445(Top 10%)
15K9.32 mi3.11 mi4984+244360+34360+344586(Top 18%)311(Top 3%)311(Top 7%)
20K12.43 mi3.11 mi4579+405314+46314+463740(Top 15%)219(Top 2%)219(Top 5%)
Half13.11 mi0.68 mi4504+75309+5309+53493(Top 14%)190(Top 2%)190(Top 4%)
25K15.53 mi2.42 mi5566-1062512-203512-20310600(Top 41%)2770(Top 25%)2770(Top 59%)
30K18.64 mi3.11 mi5512+54565-53565-535952(Top 23%)957(Top 9%)957(Top 21%)
20M20.00 mi1.36 mi5695-183646-81646-819177(Top 36%)2537(Top 23%)2537(Top 54%)
21M21.00 mi1.00 mi5651+44657-11657-116383(Top 25%)1461(Top 13%)1461(Top 31%)
35K21.75 mi0.75 mi5705-54693-36693-368973(Top 35%)2692(Top 25%)2692(Top 58%)
23M23.00 mi1.25 mi5867-162775-82775-8210082(Top 39%)3431(Top 31%)3431(Top 74%)
24M24.00 mi1.00 mi5993-126847-72847-7210593(Top 41%)3718(Top 34%)3718(Top 80%)
40K24.85 mi0.85 mi5978+15870-23870-237669(Top 30%)2439(Top 22%)2439(Top 52%)
25.2M25.20 mi0.35 mi5936+42877-7877-75676(Top 22%)1547(Top 14%)1547(Top 33%)
Finish26.22 mi1.02 mi5980-44923-46923-468139(Top 32%)2645(Top 24%)2645(Top 57%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21stories
+97ft-345ft

Overall

4586

Females

311

F18-39

311

5K→10K

3.1 - 6.2 mi

Top 21%
×5stories
+79ft-138ft

Overall

5461

Females

445

F18-39

445

10K→15K

6.2 - 9.3 mi

Top 18%
×3stories
+67ft-78ft

Overall

4586

Females

311

F18-39

311

15K→20K

9.3 - 12.4 mi

Top 15%
×5stories
+106ft-86ft

Overall

3740

Females

219

F18-39

219

20K→Half

12.4 - 13.1 mi

Top 14%
×2stories
+19ft-37ft

Overall

3493

Females

190

F18-39

190

Half→25K

13.1 - 15.5 mi

Top 41%
×4stories
+66ft-88ft

Overall

10600

Females

2770

F18-39

2770

25K→30K

15.5 - 18.6 mi

Top 23%
×9stories
+181ft-148ft

Overall

5952

Females

957

F18-39

957

30K→20M

18.6 - 20.0 mi

Top 36%
×5stories
+64ft-50ft

Overall

9177

Females

2537

F18-39

2537

20M→21M

20.0 - 21.0 mi

Top 25%
×8stories
+106ft-24ft

Overall

6383

Females

1461

F18-39

1461

21M→35K

21.0 - 21.8 mi

Top 35%
×7stories
+17ft-86ft

Overall

8973

Females

2692

F18-39

2692

35K→23M

21.8 - 23.0 mi

Top 39%
×5stories
+23ft-63ft

Overall

10082

Females

3431

F18-39

3431

23M→24M

23.0 - 24.0 mi

Top 41%
×6stories
+12ft-82ft

Overall

10593

Females

3718

F18-39

3718

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

7669

Females

2439

F18-39

2439

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

5676

Females

1547

F18-39

1547

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2stories
+22ft-21ft

Overall

8139

Females

2645

F18-39

2645

Passing Analysis

Category:
Athletes Passed
1665
Passed By
2626
Net Change
-961
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5019
5K → 10K121330-209#5019#5228
10K → 15K28238+244#5228#4984
15K → 20K4116+405#4984#4579
20K → Half772+75#4579#4504
Half → 25K261088-1062#4504#5566
25K → 30K230176+54#5566#5512
30K → 20M42225-183#5512#5695
20M → 21M11672+44#5695#5651
21M → 35K52106-54#5651#5705
35K → 23M69231-162#5705#5867
23M → 24M39165-126#5867#5993
24M → 40K8873+15#5993#5978
40K → 25.2M5816+42#5978#5936
25.2M → Finish5498-44#5936#5980
TOTALS16652626-961
📊

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