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BOSTON MARATHON 2024

Libby Brown

Bib: 6270•F

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 16%
Gender (Female)
#0 / 10924
Top 4%
Division (F18-39)
#0 / 4660
Top 8%
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
6:40/mi
20:44
↑ 97↓ 3451.5%
10K· 6.21 mi
6:40/mi
41:28
↑ 79↓ 1380.4%
15K· 9.32 mi
6:44/mi
1:02:22
↑ 67↓ 78
20K· 12.43 mi
6:48/mi
1:23:30
↑ 106↓ 860.1%
Half· 13.11 mi
6:43/mi
1:28:05
↑ 19↓ 370.5%
25K· 15.53 mi
6:57/mi
1:44:55
↑ 66↓ 880.2%
30K· 18.64 mi
7:10/mi
2:07:11
↑ 181↓ 1480.2%
20M
7:26/mi
2:17:17
↑ 64↓ 500.2%
21M
8:14/mi
2:25:31
↑ 106↓ 241.6%
35K· 21.75 mi
7:28/mi
2:31:06
↑ 17↓ 861.7%
23M
8:03/mi
2:41:11
↑ 23↓ 630.6%
24M
8:09/mi
2:49:20
↓ 821.3%
40K· 24.85 mi
8:22/mi
2:56:29
↓ 200.3%
25.2M
9:02/mi
2:59:36
↑ 13↓ 160.2%
Finish· 26.22 mi
8:05/mi
3:07:50
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:05
Pace6:43 /mi
2nd Half
Distance13.11 mi
Time1:39:45
Pace7:37 /mi
📊Positive Split: 13.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:3820:446:4020:44
6:40
-
10K
6.21 mi10:46:2241:286:4020:44
6:40
0:00
15K
9.32 mi11:07:161:02:226:4120:54
6:44
+0:04
20K
12.43 mi11:28:241:23:306:4321:08
6:48
+0:04
Half
13.11 mi11:32:591:28:056:434:35
6:43
-0:05
25K
15.53 mi11:49:491:44:556:4516:50
6:57
+0:14
30K
18.64 mi12:12:052:07:116:4922:16
7:10
+0:13
20M
20.00 mi12:22:112:17:176:5210:06
7:26
+0:16
21M
21.00 mi12:30:252:25:316:568:14
8:14
+0:48
35K
21.75 mi12:36:002:31:066:575:35
7:28
-0:46
23M
23.00 mi12:46:052:41:117:0010:05
8:03
+0:35
24M
24.00 mi12:54:142:49:207:038:09
8:09
+0:06
40K
24.85 mi13:01:232:56:297:067:09
8:22
+0:13
25.2M
25.20 mi13:04:302:59:367:083:07
9:02
+0:40
Finish
26.22 mi13:12:443:07:507:108:14
8:05
-0:57

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

6:40 /mi

Average Pace

7:10 /mi

Slowest Pace

9:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:55

56% of race

Time at Steady Pace

37:57

20% of race

Time at Slower Pace

44:58

24% of race

Average Pace: 7:10 /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 mi10:25:3820:446:4020:44
6:40
#4638
10K
6.21 mi10:46:2241:286:4020:44
6:40
#4350
15K
9.32 mi11:07:161:02:226:4120:54
6:44
#4239
20K
12.43 mi11:28:241:23:306:4321:08
6:48
#4107
Half
13.11 mi11:32:591:28:056:434:35
6:43
#4088
25K
15.53 mi11:49:491:44:556:4516:50
6:57
#4020
30K
18.64 mi12:12:052:07:116:4922:16
7:10
#3877
20M
20.00 mi12:22:112:17:176:5210:06
7:26
#3847
21M
21.00 mi12:30:252:25:316:568:14
8:14
#3897
35K
21.75 mi12:36:002:31:066:575:35
7:28
#3908
23M
23.00 mi12:46:052:41:117:0010:05
8:03
#3975
24M
24.00 mi12:54:142:49:207:038:09
8:09
#4048
40K
24.85 mi13:01:232:56:297:067:09
8:22
#4097
25.2M
25.20 mi13:04:302:59:367:083:07
9:02
#4102
Finish
26.22 mi13:12:443:07:507:108:14
8:05
#4212
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 mi46382972974140(Top 16%)249(Top 2%)249(Top 5%)
10K6.21 mi3.10 mi4350+288255+42255+424132(Top 16%)248(Top 2%)248(Top 5%)
15K9.32 mi3.11 mi4239+111258-3258-34140(Top 16%)249(Top 2%)249(Top 5%)
20K12.43 mi3.11 mi4107+132238+20238+203889(Top 15%)240(Top 2%)240(Top 5%)
Half13.11 mi0.68 mi4088+19235+3235+33997(Top 16%)263(Top 2%)263(Top 6%)
25K15.53 mi2.42 mi4020+68238-3238-34061(Top 16%)308(Top 3%)308(Top 7%)
30K18.64 mi3.11 mi3877+143235+3235+33649(Top 14%)314(Top 3%)314(Top 7%)
20M20.00 mi1.36 mi3847+30248-13248-134070(Top 16%)460(Top 4%)460(Top 10%)
21M21.00 mi1.00 mi3897-50271-23271-235069(Top 20%)907(Top 8%)907(Top 19%)
35K21.75 mi0.75 mi3908-11283-12283-124915(Top 19%)842(Top 8%)842(Top 18%)
23M23.00 mi1.25 mi3975-67313-30313-306027(Top 24%)1453(Top 13%)1453(Top 31%)
24M24.00 mi1.00 mi4048-73345-32345-327470(Top 29%)2217(Top 20%)2217(Top 48%)
40K24.85 mi0.85 mi4097-49374-29374-297667(Top 30%)2437(Top 22%)2437(Top 52%)
25.2M25.20 mi0.35 mi4102-5384-10384-106719(Top 26%)2013(Top 18%)2013(Top 43%)
Finish26.22 mi1.02 mi4212-110431-47431-479037(Top 35%)3068(Top 28%)3068(Top 66%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21story building
+97ft-345ft

Overall

4140

Females

249

F18-39

249

5K→10K

3.1 - 6.2 mi

Top 16%
×5story building
+79ft-138ft

Overall

4132

Females

248

F18-39

248

10K→15K

6.2 - 9.3 mi

Top 16%
×3story building
+67ft-78ft

Overall

4140

Females

249

F18-39

249

15K→20K

9.3 - 12.4 mi

Top 15%
×5story building
+106ft-86ft

Overall

3889

Females

240

F18-39

240

20K→Half

12.4 - 13.1 mi

Top 16%
×2story building
+19ft-37ft

Overall

3997

Females

263

F18-39

263

Half→25K

13.1 - 15.5 mi

Top 16%
×4story building
+66ft-88ft

Overall

4061

Females

308

F18-39

308

25K→30K

15.5 - 18.6 mi

Top 14%
×9story building
+181ft-148ft

Overall

3649

Females

314

F18-39

314

30K→20M

18.6 - 20.0 mi

Top 16%
×5story building
+64ft-50ft

Overall

4070

Females

460

F18-39

460

20M→21M

20.0 - 21.0 mi

Top 20%
×8story building
+106ft-24ft

Overall

5069

Females

907

F18-39

907

21M→35K

21.0 - 21.8 mi

Top 19%
×7story building
+17ft-86ft

Overall

4915

Females

842

F18-39

842

35K→23M

21.8 - 23.0 mi

Top 24%
×5story building
+23ft-63ft

Overall

6027

Females

1453

F18-39

1453

23M→24M

23.0 - 24.0 mi

Top 29%
×6story building
+12ft-82ft

Overall

7470

Females

2217

F18-39

2217

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

7667

Females

2437

F18-39

2437

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

6719

Females

2013

F18-39

2013

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2story building
+22ft-21ft

Overall

9037

Females

3068

F18-39

3068

Passing Analysis

Category:
Athletes Passed
1653
Passed By
1227
Net Change
+426
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4638
5K → 10K35769+288#4638#4350
10K → 15K18978+111#4350#4239
15K → 20K20977+132#4239#4107
20K → Half3718+19#4107#4088
Half → 25K15284+68#4088#4020
25K → 30K255112+143#4020#3877
30K → 20M12797+30#3877#3847
20M → 21M76126-50#3847#3897
21M → 35K4758-11#3897#3908
35K → 23M70137-67#3908#3975
23M → 24M42115-73#3975#4048
24M → 40K3988-49#4048#4097
40K → 25.2M2732-5#4097#4102
25.2M → Finish26136-110#4102#4212
TOTALS16531227+426
📊

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