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BOSTON MARATHON 2024

Brittany Backhus

Bib: 18177•F

AP

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

Start
0:00:00
Race begins
5K· 3.11 mi
25:56
Rank: #16936
Start → 5K
8:21/mi
25:56 split
10K· 6.21 mi
52:15
Rank: #16979 (-43)
5K → 10K
8:28/mi
26:19 split
15K· 9.32 mi
1:19:33
Rank: #17304 (-325)
10K → 15K
8:47/mi
27:18 split
20K· 12.43 mi
1:48:36
Rank: #17719 (-415)
15K → 20K
9:21/mi
29:03 split
Half· 13.11 mi
1:54:46
Rank: #17753 (-34)
20K → Half
9:02/mi
6:10 split
25K· 15.53 mi
2:18:13
Rank: #17834 (-81)
Half → 25K
9:40/mi
23:27 split
30K· 18.64 mi
2:49:37
Rank: #17826 (+8)
25K → 30K
10:06/mi
31:24 split
20M
3:03:05
Rank: #17686 (+140)
30K → 20M
9:55/mi
13:28 split
21M
3:13:46
Rank: #17563 (+123)
20M → 21M
10:41/mi
10:41 split
35K· 21.75 mi
3:21:11
Rank: #17526 (+37)
21M → 35K
9:55/mi
7:25 split
23M
3:34:47
Rank: #17571 (-45)
35K → 23M
10:52/mi
13:36 split
24M
3:44:54
Rank: #17539 (+32)
23M → 24M
10:07/mi
10:07 split
40K· 24.85 mi
3:53:44
Rank: #17466 (+73)
24M → 40K
10:20/mi
8:50 split
25.2M
3:57:43
Rank: #17428 (+38)
40K → 25.2M
11:33/mi
3:59 split
Finish· 26.22 mi
4:07:33
Rank: #17367 (+61)
25.2M → Finish
9:39/mi
9:50 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:46
Pace8:45 /mi
2nd Half
Distance13.11 mi
Time2:12:47
Pace10:08 /mi
📊Positive Split: 15.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:5125:568:2125:56
8:21
-
10K
6.21 mi11:44:1052:158:2526:19
8:28
+0:07
15K
9.32 mi12:11:281:19:338:3227:18
8:47
+0:19
20K
12.43 mi12:40:311:48:368:4429:03
9:21
+0:34
Half
13.11 mi12:46:411:54:468:456:10
9:02
-0:19
25K
15.53 mi13:10:082:18:138:5423:27
9:40
+0:38
30K
18.64 mi13:41:322:49:379:0631:24
10:06
+0:26
20M
20.00 mi13:55:003:03:059:0913:28
9:55
-0:11
21M
21.00 mi14:05:413:13:469:1410:41
10:41
+0:46
35K
21.75 mi14:13:063:21:119:157:25
9:55
-0:46
23M
23.00 mi14:26:423:34:479:2013:36
10:52
+0:57
24M
24.00 mi14:36:493:44:549:2210:07
10:07
-0:45
40K
24.85 mi14:45:393:53:449:248:50
10:20
+0:13
25.2M
25.20 mi14:49:383:57:439:263:59
11:33
+1:13
Finish
26.22 mi14:59:284:07:339:279:50
9:39
-1:54

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

8:21 /mi

Average Pace

9:27 /mi

Slowest Pace

11:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:54:46

46% of race

Time at Steady Pace

1:44:31

42% of race

Time at Slower Pace

28:16

11% of race

Average Pace: 9:26 /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 mi11:17:5125:568:2125:56
8:21
#16936
10K
6.21 mi11:44:1052:158:2526:19
8:28
#16979
15K
9.32 mi12:11:281:19:338:3227:18
8:47
#17304
20K
12.43 mi12:40:311:48:368:4429:03
9:21
#17719
Half
13.11 mi12:46:411:54:468:456:10
9:02
#17753
25K
15.53 mi13:10:082:18:138:5423:27
9:40
#17834
30K
18.64 mi13:41:322:49:379:0631:24
10:06
#17826
20M
20.00 mi13:55:003:03:059:0913:28
9:55
#17686
21M
21.00 mi14:05:413:13:469:1410:41
10:41
#17563
35K
21.75 mi14:13:063:21:119:157:25
9:55
#17526
23M
23.00 mi14:26:423:34:479:2013:36
10:52
#17571
24M
24.00 mi14:36:493:44:549:2210:07
10:07
#17539
40K
24.85 mi14:45:393:53:449:248:50
10:20
#17466
25.2M
25.20 mi14:49:383:57:439:263:59
11:33
#17428
Finish
26.22 mi14:59:284:07:339:279:50
9:39
#17367
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi169366126612617923(Top 70%)6675(Top 61%)6675(Top 143%)
10K6.21 mi3.10 mi16979-436138-126138-1217096(Top 67%)6185(Top 57%)6185(Top 133%)
15K9.32 mi3.11 mi17304-3256324-1866324-18617923(Top 70%)6675(Top 61%)6675(Top 143%)
20K12.43 mi3.11 mi17719-4156587-2636587-26318706(Top 73%)7113(Top 65%)7113(Top 153%)
Half13.11 mi0.68 mi17753-346607-206607-2018464(Top 72%)7033(Top 64%)7033(Top 151%)
25K15.53 mi2.42 mi17834-816679-726679-7218117(Top 71%)6894(Top 63%)6894(Top 148%)
30K18.64 mi3.11 mi17826+86742-636742-6317679(Top 69%)6876(Top 63%)6876(Top 148%)
20M20.00 mi1.36 mi17686+1406687+556687+5516181(Top 63%)6302(Top 58%)6302(Top 135%)
21M21.00 mi1.00 mi17563+1236636+516636+5115431(Top 60%)6036(Top 55%)6036(Top 130%)
35K21.75 mi0.75 mi17526+376639-36639-316903(Top 66%)6804(Top 62%)6804(Top 146%)
23M23.00 mi1.25 mi17571-456689-506689-5018038(Top 71%)7429(Top 68%)7429(Top 159%)
24M24.00 mi1.00 mi17539+326697-86697-816709(Top 65%)6793(Top 62%)6793(Top 146%)
40K24.85 mi0.85 mi17466+736690+76690+716171(Top 63%)6588(Top 60%)6588(Top 141%)
25.2M25.20 mi0.35 mi17428+386687+36687+316212(Top 63%)6639(Top 61%)6639(Top 142%)
Finish26.22 mi1.02 mi17367+616681+66681+617158(Top 67%)7090(Top 65%)7090(Top 152%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21stories
+97ft-345ft

Overall

17923

Females

6675

F18-39

6675

5K→10K

3.1 - 6.2 mi

Top 67%
×5stories
+79ft-138ft

Overall

17096

Females

6185

F18-39

6185

10K→15K

6.2 - 9.3 mi

Top 70%
×3stories
+67ft-78ft

Overall

17923

Females

6675

F18-39

6675

15K→20K

9.3 - 12.4 mi

Top 73%
×5stories
+106ft-86ft

Overall

18706

Females

7113

F18-39

7113

20K→Half

12.4 - 13.1 mi

Top 72%
×2stories
+19ft-37ft

Overall

18464

Females

7033

F18-39

7033

Half→25K

13.1 - 15.5 mi

Top 71%
×4stories
+66ft-88ft

Overall

18117

Females

6894

F18-39

6894

25K→30K

15.5 - 18.6 mi

Top 69%
×9stories
+181ft-148ft

Overall

17679

Females

6876

F18-39

6876

30K→20M

18.6 - 20.0 mi

Top 63%
×5stories
+64ft-50ft

Overall

16181

Females

6302

F18-39

6302

20M→21M

20.0 - 21.0 mi

Top 60%
×8stories
+106ft-24ft

Overall

15431

Females

6036

F18-39

6036

21M→35K

21.0 - 21.8 mi

Top 66%
×7stories
+17ft-86ft

Overall

16903

Females

6804

F18-39

6804

35K→23M

21.8 - 23.0 mi

Top 71%
×5stories
+23ft-63ft

Overall

18038

Females

7429

F18-39

7429

23M→24M

23.0 - 24.0 mi

Top 65%
×6stories
+12ft-82ft

Overall

16709

Females

6793

F18-39

6793

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

16171

Females

6588

F18-39

6588

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1story
+13ft-16ft

Overall

16212

Females

6639

F18-39

6639

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2stories
+22ft-21ft

Overall

17158

Females

7090

F18-39

7090

Passing Analysis

Category:
Athletes Passed
1858
Passed By
2289
Net Change
-431
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16936
5K → 10K258301-43#16936#16979
10K → 15K141466-325#16979#17304
15K → 20K144559-415#17304#17719
20K → Half2862-34#17719#17753
Half → 25K175256-81#17753#17834
25K → 30K257249+8#17834#17826
30K → 20M18545+140#17826#17686
20M → 21M16239+123#17686#17563
21M → 35K8346+37#17563#17526
35K → 23M96141-45#17526#17571
23M → 24M7745+32#17571#17539
24M → 40K10027+73#17539#17466
40K → 25.2M5618+38#17466#17428
25.2M → Finish9635+61#17428#17367
TOTALS18582289-431
📊

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