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BOSTON MARATHON 2024

Libby Nolan

Bib: 15112•F

OH

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

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
10:19/mi
32:03
↑ 97↓ 3451.5%
10K· 6.21 mi
10:19/mi
1:04:06
↑ 79↓ 1380.4%
15K· 9.32 mi
9:54/mi
1:34:50
↑ 67↓ 78
20K· 12.43 mi
10:00/mi
2:05:54
↑ 106↓ 860.1%
Half· 13.11 mi
9:46/mi
2:12:34
↑ 19↓ 370.5%
25K· 15.53 mi
10:07/mi
2:37:06
↑ 66↓ 880.2%
30K· 18.64 mi
10:22/mi
3:09:17
↑ 181↓ 1480.2%
20M
10:30/mi
3:23:33
↑ 64↓ 500.2%
21M
10:37/mi
3:34:10
↑ 106↓ 241.6%
35K· 21.75 mi
10:14/mi
3:41:49
↑ 17↓ 861.7%
23M
10:27/mi
3:54:54
↑ 23↓ 630.6%
24M
10:13/mi
4:05:07
↓ 821.3%
40K· 24.85 mi
10:23/mi
4:14:00
↓ 200.3%
25.2M
11:42/mi
4:18:02
↑ 13↓ 160.2%
Finish· 26.22 mi
9:39/mi
4:27:52
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:12:34
Pace10:07 /mi
2nd Half
Distance13.11 mi
Time2:15:18
Pace10:19 /mi
📊Positive Split: 2.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:04:3932:0310:1932:03
10:19
-
10K
6.21 mi11:36:421:04:0610:1932:03
10:19
0:00
15K
9.32 mi12:07:261:34:5010:1030:44
9:54
-0:25
20K
12.43 mi12:38:302:05:5410:0831:04
10:00
+0:06
Half
13.11 mi12:45:102:12:3410:076:40
9:46
-0:14
25K
15.53 mi13:09:422:37:0610:0724:32
10:07
+0:21
30K
18.64 mi13:41:533:09:1710:0932:11
10:22
+0:15
20M
20.00 mi13:56:093:23:3310:1114:16
10:30
+0:08
21M
21.00 mi14:06:463:34:1010:1210:37
10:37
+0:07
35K
21.75 mi14:14:253:41:4910:127:39
10:14
-0:23
23M
23.00 mi14:27:303:54:5410:1313:05
10:27
+0:13
24M
24.00 mi14:37:434:05:0710:1310:13
10:13
-0:14
40K
24.85 mi14:46:364:14:0010:138:53
10:23
+0:10
25.2M
25.20 mi14:50:384:18:0210:144:02
11:42
+1:19
Finish
26.22 mi15:00:284:27:5210:139:50
9:39
-2:03

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

9:39 /mi

Average Pace

10:13 /mi

Slowest Pace

11:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:18:18

29% of race

Time at Steady Pace

2:54:55

65% of race

Time at Slower Pace

14:39

5% of race

Average Pace: 10:13 /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 mi11:04:3932:0310:1932:03
10:19
#23689
10K
6.21 mi11:36:421:04:0610:1932:03
10:19
#23413
15K
9.32 mi12:07:261:34:5010:1030:44
9:54
#22872
20K
12.43 mi12:38:302:05:5410:0831:04
10:00
#22284
Half
13.11 mi12:45:102:12:3410:076:40
9:46
#22210
25K
15.53 mi13:09:422:37:0610:0724:32
10:07
#21763
30K
18.64 mi13:41:533:09:1710:0932:11
10:22
#21145
20M
20.00 mi13:56:093:23:3310:1114:16
10:30
#20935
21M
21.00 mi14:06:463:34:1010:1210:37
10:37
#20617
35K
21.75 mi14:14:253:41:4910:127:39
10:14
#20530
23M
23.00 mi14:27:303:54:5410:1313:05
10:27
#20317
24M
24.00 mi14:37:434:05:0710:1310:13
10:13
#20175
40K
24.85 mi14:46:364:14:0010:138:53
10:23
#20044
25.2M
25.20 mi14:50:384:18:0210:144:02
11:42
#19971
Finish
26.22 mi15:00:284:27:5210:139:50
9:39
#19866
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi236899772977221665(Top 85%)8684(Top 79%)8684(Top 186%)
10K6.21 mi3.10 mi23413+2769626+1469626+14623216(Top 91%)9540(Top 87%)9540(Top 205%)
15K9.32 mi3.11 mi22872+5419343+2839343+28321665(Top 85%)8684(Top 79%)8684(Top 186%)
20K12.43 mi3.11 mi22284+5889055+2889055+28820583(Top 81%)8132(Top 74%)8132(Top 175%)
Half13.11 mi0.68 mi22210+749020+359020+3520888(Top 82%)8351(Top 76%)8351(Top 179%)
25K15.53 mi2.42 mi21763+4478796+2248796+22419432(Top 76%)7608(Top 70%)7608(Top 163%)
30K18.64 mi3.11 mi21145+6188512+2848512+28418422(Top 72%)7264(Top 66%)7264(Top 156%)
20M20.00 mi1.36 mi20935+2108429+838429+8318004(Top 70%)7215(Top 66%)7215(Top 155%)
21M21.00 mi1.00 mi20617+3188286+1438286+14315224(Top 60%)5932(Top 54%)5932(Top 127%)
35K21.75 mi0.75 mi20530+878251+358251+3517848(Top 70%)7263(Top 66%)7263(Top 156%)
23M23.00 mi1.25 mi20317+2138160+918160+9116933(Top 66%)6884(Top 63%)6884(Top 148%)
24M24.00 mi1.00 mi20175+1428103+578103+5717048(Top 67%)6979(Top 64%)6979(Top 150%)
40K24.85 mi0.85 mi20044+1318051+528051+5216381(Top 64%)6693(Top 61%)6693(Top 144%)
25.2M25.20 mi0.35 mi19971+738019+328019+3216620(Top 65%)6855(Top 63%)6855(Top 147%)
Finish26.22 mi1.02 mi19866+1057979+407979+4017171(Top 67%)7103(Top 65%)7103(Top 152%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21story building
+97ft-345ft

Overall

21665

Females

8684

F18-39

8684

5K→10K

3.1 - 6.2 mi

Top 91%
×5story building
+79ft-138ft

Overall

23216

Females

9540

F18-39

9540

10K→15K

6.2 - 9.3 mi

Top 85%
×3story building
+67ft-78ft

Overall

21665

Females

8684

F18-39

8684

15K→20K

9.3 - 12.4 mi

Top 81%
×5story building
+106ft-86ft

Overall

20583

Females

8132

F18-39

8132

20K→Half

12.4 - 13.1 mi

Top 82%
×2story building
+19ft-37ft

Overall

20888

Females

8351

F18-39

8351

Half→25K

13.1 - 15.5 mi

Top 76%
×4story building
+66ft-88ft

Overall

19432

Females

7608

F18-39

7608

25K→30K

15.5 - 18.6 mi

Top 72%
×9story building
+181ft-148ft

Overall

18422

Females

7264

F18-39

7264

30K→20M

18.6 - 20.0 mi

Top 70%
×5story building
+64ft-50ft

Overall

18004

Females

7215

F18-39

7215

20M→21M

20.0 - 21.0 mi

Top 60%
×8story building
+106ft-24ft

Overall

15224

Females

5932

F18-39

5932

21M→35K

21.0 - 21.8 mi

Top 70%
×7story building
+17ft-86ft

Overall

17848

Females

7263

F18-39

7263

35K→23M

21.8 - 23.0 mi

Top 66%
×5story building
+23ft-63ft

Overall

16933

Females

6884

F18-39

6884

23M→24M

23.0 - 24.0 mi

Top 67%
×6story building
+12ft-82ft

Overall

17048

Females

6979

F18-39

6979

24M→40K

24.0 - 24.9 mi

Top 64%
×1story
+6ft-20ft

Overall

16381

Females

6693

F18-39

6693

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

16620

Females

6855

F18-39

6855

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2story building
+22ft-21ft

Overall

17171

Females

7103

F18-39

7103

Passing Analysis

Category:
Athletes Passed
3986
Passed By
163
Net Change
+3823
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23689
5K → 10K36892+276#23689#23413
10K → 15K5487+541#23413#22872
15K → 20K5902+588#22872#22284
20K → Half784+74#22284#22210
Half → 25K4503+447#22210#21763
25K → 30K6235+618#21763#21145
30K → 20M2133+210#21145#20935
20M → 21M3180+318#20935#20617
21M → 35K958+87#20617#20530
35K → 23M2196+213#20530#20317
23M → 24M1519+142#20317#20175
24M → 40K14211+131#20175#20044
40K → 25.2M763+73#20044#19971
25.2M → Finish11510+105#19971#19866
TOTALS3986163+3823
📊

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