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BOSTON MARATHON 2024

Clara Nowlan

Bib: 26654•F

CA

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
11:54/mi
36:59
↑ 97↓ 3451.5%
10K· 6.21 mi
11:56/mi
1:14:05
↑ 79↓ 1380.4%
15K· 9.32 mi
12:19/mi
1:52:22
↑ 67↓ 78
20K· 12.43 mi
12:46/mi
2:32:03
↑ 106↓ 860.1%
Half· 13.11 mi
12:07/mi
2:40:19
↑ 19↓ 370.5%
25K· 15.53 mi
13:24/mi
3:12:49
↑ 66↓ 880.2%
30K· 18.64 mi
14:17/mi
3:57:13
↑ 181↓ 1480.2%
20M
14:19/mi
4:16:40
↑ 64↓ 500.2%
21M
15:20/mi
4:32:00
↑ 106↓ 241.6%
35K· 21.75 mi
14:37/mi
4:42:56
↑ 17↓ 861.7%
23M
14:17/mi
5:00:49
↑ 23↓ 630.6%
24M
14:36/mi
5:15:25
↓ 821.3%
40K· 24.85 mi
14:47/mi
5:28:03
↓ 200.3%
25.2M
17:44/mi
5:34:10
↑ 13↓ 160.2%
Finish· 26.22 mi
14:16/mi
5:48:42
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:40:19
Pace12:14 /mi
2nd Half
Distance13.11 mi
Time3:08:23
Pace14:22 /mi
📊Positive Split: 17.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi12:00:0536:5911:5436:59
11:54
-
10K
6.21 mi12:37:111:14:0511:5537:06
11:56
+0:02
15K
9.32 mi13:15:281:52:2212:0338:17
12:19
+0:23
20K
12.43 mi13:55:092:32:0312:1439:41
12:46
+0:27
Half
13.11 mi14:03:252:40:1912:148:16
12:07
-0:39
25K
15.53 mi14:35:553:12:4912:2532:30
13:24
+1:17
30K
18.64 mi15:20:193:57:1312:4444:24
14:17
+0:53
20M
20.00 mi15:39:464:16:4012:5019:27
14:19
+0:02
21M
21.00 mi15:55:064:32:0012:5715:20
15:20
+1:01
35K
21.75 mi16:06:024:42:5613:0110:56
14:37
-0:43
23M
23.00 mi16:23:555:00:4913:0517:53
14:17
-0:20
24M
24.00 mi16:38:315:15:2513:0914:36
14:36
+0:19
40K
24.85 mi16:51:095:28:0313:1212:38
14:47
+0:11
25.2M
25.20 mi16:57:165:34:1013:166:07
17:44
+2:57
Finish
26.22 mi17:11:485:48:4213:1914:32
14:16
-3:28

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

11:54 /mi

Average Pace

13:19 /mi

Slowest Pace

17:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:12:49

55% of race

Time at Steady Pace

2:14:26

39% of race

Time at Slower Pace

21:27

6% of race

Average Pace: 13:18 /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 mi12:00:0536:5911:5436:59
11:54
#25386
10K
6.21 mi12:37:111:14:0511:5537:06
11:56
#25284
15K
9.32 mi13:15:281:52:2212:0338:17
12:19
#25196
20K
12.43 mi13:55:092:32:0312:1439:41
12:46
#25114
Half
13.11 mi14:03:252:40:1912:148:16
12:07
#25106
25K
15.53 mi14:35:553:12:4912:2532:30
13:24
#25049
30K
18.64 mi15:20:193:57:1312:4444:24
14:17
#24990
20M
20.00 mi15:39:464:16:4012:5019:27
14:19
#24959
21M
21.00 mi15:55:064:32:0012:5715:20
15:20
#24937
35K
21.75 mi16:06:024:42:5613:0110:56
14:37
#24951
23M
23.00 mi16:23:555:00:4913:0517:53
14:17
#24938
24M
24.00 mi16:38:315:15:2513:0914:36
14:36
#24954
40K
24.85 mi16:51:095:28:0313:1212:38
14:47
#24953
25.2M
25.20 mi16:57:165:34:1013:166:07
17:44
#24975
Finish
26.22 mi17:11:485:48:4213:1914:32
14:16
#25013
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25386108221082224962(Top 98%)10557(Top 97%)10557(Top 227%)
10K6.21 mi3.10 mi25284+10210755+6710755+6725087(Top 98%)10618(Top 97%)10618(Top 228%)
15K9.32 mi3.11 mi25196+8810691+6410691+6424962(Top 98%)10557(Top 97%)10557(Top 227%)
20K12.43 mi3.11 mi25114+8210644+4710644+4724700(Top 97%)10418(Top 95%)10418(Top 224%)
Half13.11 mi0.68 mi25106+810642+210642+224668(Top 97%)10436(Top 96%)10436(Top 224%)
25K15.53 mi2.42 mi25049+5710609+3310609+3324536(Top 96%)10373(Top 95%)10373(Top 223%)
30K18.64 mi3.11 mi24990+5910595+1410595+1424435(Top 96%)10382(Top 95%)10382(Top 223%)
20M20.00 mi1.36 mi24959+3110582+1310582+1324223(Top 95%)10342(Top 95%)10342(Top 222%)
21M21.00 mi1.00 mi24937+2210571+1110571+1123941(Top 94%)10237(Top 94%)10237(Top 220%)
35K21.75 mi0.75 mi24951-1410582-1110582-1124698(Top 97%)10621(Top 97%)10621(Top 228%)
23M23.00 mi1.25 mi24938+1310579+310579+324071(Top 94%)10329(Top 95%)10329(Top 222%)
24M24.00 mi1.00 mi24954-1610597-1810597-1824626(Top 96%)10623(Top 97%)10623(Top 228%)
40K24.85 mi0.85 mi24953+110603-610603-624380(Top 95%)10529(Top 96%)10529(Top 226%)
25.2M25.20 mi0.35 mi24975-2210619-1610619-1624931(Top 98%)10730(Top 98%)10730(Top 230%)
Finish26.22 mi1.02 mi25013-3810642-2310642-2325006(Top 98%)10781(Top 99%)10781(Top 231%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 98%
×21story building
+97ft-345ft

Overall

24962

Females

10557

F18-39

10557

5K→10K

3.1 - 6.2 mi

Top 98%
×5story building
+79ft-138ft

Overall

25087

Females

10618

F18-39

10618

10K→15K

6.2 - 9.3 mi

Top 98%
×3story building
+67ft-78ft

Overall

24962

Females

10557

F18-39

10557

15K→20K

9.3 - 12.4 mi

Top 97%
×5story building
+106ft-86ft

Overall

24700

Females

10418

F18-39

10418

20K→Half

12.4 - 13.1 mi

Top 97%
×2story building
+19ft-37ft

Overall

24668

Females

10436

F18-39

10436

Half→25K

13.1 - 15.5 mi

Top 96%
×4story building
+66ft-88ft

Overall

24536

Females

10373

F18-39

10373

25K→30K

15.5 - 18.6 mi

Top 96%
×9story building
+181ft-148ft

Overall

24435

Females

10382

F18-39

10382

30K→20M

18.6 - 20.0 mi

Top 95%
×5story building
+64ft-50ft

Overall

24223

Females

10342

F18-39

10342

20M→21M

20.0 - 21.0 mi

Top 94%
×8story building
+106ft-24ft

Overall

23941

Females

10237

F18-39

10237

21M→35K

21.0 - 21.8 mi

Top 97%
×7story building
+17ft-86ft

Overall

24698

Females

10621

F18-39

10621

35K→23M

21.8 - 23.0 mi

Top 94%
×5story building
+23ft-63ft

Overall

24071

Females

10329

F18-39

10329

23M→24M

23.0 - 24.0 mi

Top 96%
×6story building
+12ft-82ft

Overall

24626

Females

10623

F18-39

10623

24M→40K

24.0 - 24.9 mi

Top 95%
×1story
+6ft-20ft

Overall

24380

Females

10529

F18-39

10529

40K→25.2M

24.9 - 25.2 mi

Top 98%
×1story
+13ft-16ft

Overall

24931

Females

10730

F18-39

10730

25.2M→Finish

25.2 - 26.2 mi

Top 98%
×2story building
+22ft-21ft

Overall

25006

Females

10781

F18-39

10781

Passing Analysis

Category:
Athletes Passed
647
Passed By
274
Net Change
+373
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25386
5K → 10K11715+102#25386#25284
10K → 15K9911+88#25284#25196
15K → 20K9210+82#25196#25114
20K → Half124+8#25114#25106
Half → 25K7114+57#25106#25049
25K → 30K9132+59#25049#24990
30K → 20M4615+31#24990#24959
20M → 21M319+22#24959#24937
21M → 35K1327-14#24937#24951
35K → 23M2916+13#24951#24938
23M → 24M1733-16#24938#24954
24M → 40K2019+1#24954#24953
40K → 25.2M123-22#24953#24975
25.2M → Finish846-38#24975#25013
TOTALS647274+373
📊

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