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BOSTON MARATHON 2024

Libby Brooks

UT

Bib: 12628 F

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

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:35/mi
23:34
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:32/mi
46:57
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:47/mi
1:11:08
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:06/mi
1:36:19
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:01/mi
1:41:47
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:49/mi
2:03:10
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
9:32/mi
2:32:48
↑ 181↓ 1480.2%
138 ft elev
20M
9:38/mi
2:45:53
↑ 64↓ 500.2%
148 ft elev
21M
12:25/mi
2:58:18
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
14:32/mi
3:09:10
↑ 17↓ 861.7%
156 ft elev
23M
11:22/mi
3:23:24
↑ 23↓ 630.6%
116 ft elev
24M
10:37/mi
3:34:01
↓ 821.3%
34 ft elev
40K· 24.85 mi
13:16/mi
3:45:22
↓ 200.3%
20 ft elev
25.2M
13:44/mi
3:50:06
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
10:03/mi
4:00:20
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:47
Pace7:46 /mi
2nd Half
Distance13.11 mi
Time2:18:33
Pace10:34 /mi
📊Positive Split: 36.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:1123:347:3523:34
7:35
-
10K
6.21 mi11:15:3446:577:3323:23
7:32
-0:03
15K
9.32 mi11:39:451:11:087:3824:11
7:47
+0:15
20K
12.43 mi12:04:561:36:197:4525:11
8:06
+0:19
Half
13.11 mi12:10:241:41:477:465:28
8:01
-0:05
25K
15.53 mi12:31:472:03:107:5621:23
8:49
+0:48
30K
18.64 mi13:01:252:32:488:1229:38
9:32
+0:43
20M
20.00 mi13:14:302:45:538:1813:05
9:38
+0:06
21M
21.00 mi13:26:552:58:188:2912:25
12:25
+2:47
35K
21.75 mi13:37:473:09:108:4210:52
14:32
+2:07
23M
23.00 mi13:52:013:23:248:5114:14
11:22
-3:10
24M
24.00 mi14:02:383:34:018:5510:37
10:37
-0:45
40K
24.85 mi14:13:593:45:229:0411:21
13:16
+2:39
25.2M
25.20 mi14:18:433:50:069:084:44
13:44
+0:28
Finish
26.22 mi14:28:574:00:209:1010:14
10:03
-3:41

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

7:32 /mi

Average Pace

9:10 /mi

Slowest Pace

14:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:41:47

42% of race

Time at Steady Pace

1:24:57

35% of race

Time at Slower Pace

53:36

22% of race

Average Pace: 9:10 /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 mi10:52:1123:347:3523:34
7:35
#11459
10K
6.21 mi11:15:3446:577:3323:23
7:32
#10974
15K
9.32 mi11:39:451:11:087:3824:11
7:47
#11221
20K
12.43 mi12:04:561:36:197:4525:11
8:06
#11528
Half
13.11 mi12:10:241:41:477:465:28
8:01
#11592
25K
15.53 mi12:31:472:03:107:5621:23
8:49
#12202
30K
18.64 mi13:01:252:32:488:1229:38
9:32
#12948
20M
20.00 mi13:14:302:45:538:1813:05
9:38
#13093
21M
21.00 mi13:26:552:58:188:2912:25
12:25
#13786
35K
21.75 mi13:37:473:09:108:4210:52
14:32
#14882
23M
23.00 mi13:52:013:23:248:5114:14
11:22
#15337
24M
24.00 mi14:02:383:34:018:5510:37
10:37
#15531
40K
24.85 mi14:13:593:45:229:0411:21
13:16
#16021
25.2M
25.20 mi14:18:433:50:069:084:44
13:44
#16166
Finish
26.22 mi14:28:574:00:209:1010:14
10:03
#16286
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi11459282328231183231503150
10K6.21 mi3.10 mi10974+4852607+2162607+2161051123672367
15K9.32 mi3.11 mi11221-2472755-1482755-1481183231503150
20K12.43 mi3.11 mi11528-3072956-2012956-2011257836203620
Half13.11 mi0.68 mi11592-642994-382994-381293638653865
25K15.53 mi2.42 mi12202-6103378-3843378-3841467849984998
30K18.64 mi3.11 mi12948-7463884-5063884-5061561157475747
20M20.00 mi1.36 mi13093-1454037-1534037-1531508057185718
21M21.00 mi1.00 mi13786-6934476-4394476-4391968881658165
35K21.75 mi0.75 mi14882-10965136-6605136-660246451058910589
23M23.00 mi1.25 mi15337-4555446-3105446-3101934380568056
24M24.00 mi1.00 mi15531-1945595-1495595-1491820175637563
40K24.85 mi0.85 mi16021-4905883-2885883-2882268497829782
25.2M25.20 mi0.35 mi16166-1455978-955978-952113990489048
Finish26.22 mi1.02 mi16286-1206075-976075-971854577497749

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21story building
+97ft-345ft

Overall

11832

Females

3150

F18-39

3150

5K→10K

3.1 - 6.2 mi

Top 41%
×5story building
+79ft-138ft

Overall

10511

Females

2367

F18-39

2367

10K→15K

6.2 - 9.3 mi

Top 46%
×3story building
+67ft-78ft

Overall

11832

Females

3150

F18-39

3150

15K→20K

9.3 - 12.4 mi

Top 49%
×5story building
+106ft-86ft

Overall

12578

Females

3620

F18-39

3620

20K→Half

12.4 - 13.1 mi

Top 51%
×2story building
+19ft-37ft

Overall

12936

Females

3865

F18-39

3865

Half→25K

13.1 - 15.5 mi

Top 57%
×4story building
+66ft-88ft

Overall

14678

Females

4998

F18-39

4998

25K→30K

15.5 - 18.6 mi

Top 61%
×9story building
+181ft-148ft

Overall

15611

Females

5747

F18-39

5747

30K→20M

18.6 - 20.0 mi

Top 59%
×5story building
+64ft-50ft

Overall

15080

Females

5718

F18-39

5718

20M→21M

20.0 - 21.0 mi

Top 77%
×8story building
+106ft-24ft

Overall

19688

Females

8165

F18-39

8165

21M→35K

21.0 - 21.8 mi

Top 96%
×7story building
+17ft-86ft

Overall

24645

Females

10589

F18-39

10589

35K→23M

21.8 - 23.0 mi

Top 76%
×5story building
+23ft-63ft

Overall

19343

Females

8056

F18-39

8056

23M→24M

23.0 - 24.0 mi

Top 71%
×6story building
+12ft-82ft

Overall

18201

Females

7563

F18-39

7563

24M→40K

24.0 - 24.9 mi

Top 89%
×1story
+6ft-20ft

Overall

22684

Females

9782

F18-39

9782

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

21139

Females

9048

F18-39

9048

25.2M→Finish

25.2 - 26.2 mi

Top 73%
×2story building
+22ft-21ft

Overall

18545

Females

7749

F18-39

7749

Passing Analysis

Category:
Athletes Passed
1356
Passed By
6183
Net Change
-4827
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11459
5K → 10K57388+485#11459#10974
10K → 15K122369-247#10974#11221
15K → 20K143450-307#11221#11528
20K → Half2084-64#11528#11592
Half → 25K97707-610#11592#12202
25K → 30K109855-746#12202#12948
30K → 20M100245-145#12948#13093
20M → 21M21714-693#13093#13786
21M → 35K61102-1096#13786#14882
35K → 23M46501-455#14882#15337
23M → 24M46240-194#15337#15531
24M → 40K17507-490#15531#16021
40K → 25.2M13158-145#16021#16166
25.2M → Finish43163-120#16166#16286
TOTALS13566183-4827

Passing Charts

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