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BOSTON MARATHON 2024

Mackenzie Duncan

Bib: 24103•F

MA

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
27:26
Rank: #19421
Start → 5K
8:50/mi
27:26 split
10K· 6.21 mi
54:52
Rank: #19186 (+235)
5K → 10K
8:50/mi
27:26 split
15K· 9.32 mi
1:22:33
Rank: #18947 (+239)
10K → 15K
8:55/mi
27:41 split
20K· 12.43 mi
1:52:23
Rank: #19156 (-209)
15K → 20K
9:36/mi
29:50 split
Half· 13.11 mi
1:58:56
Rank: #19232 (-76)
20K → Half
9:36/mi
6:33 split
25K· 15.53 mi
2:22:48
Rank: #19129 (+103)
Half → 25K
9:51/mi
23:52 split
30K· 18.64 mi
2:55:48
Rank: #19137 (-8)
25K → 30K
10:37/mi
33:00 split
20M
3:10:20
Rank: #19075 (+62)
30K → 20M
10:42/mi
14:32 split
21M
3:22:08
Rank: #19011 (+64)
20M → 21M
11:48/mi
11:48 split
35K· 21.75 mi
3:30:17
Rank: #19009 (+2)
21M → 35K
10:54/mi
8:09 split
23M
3:43:35
Rank: #18882 (+127)
35K → 23M
10:37/mi
13:18 split
24M
3:53:43
Rank: #18774 (+108)
23M → 24M
10:08/mi
10:08 split
40K· 24.85 mi
4:03:14
Rank: #18732 (+42)
24M → 40K
11:08/mi
9:31 split
25.2M
4:06:51
Rank: #18648 (+84)
40K → 25.2M
10:29/mi
3:37 split
Finish· 26.22 mi
4:16:31
Rank: #18559 (+89)
25.2M → Finish
9:29/mi
9:40 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:58:56
Pace9:04 /mi
2nd Half
Distance13.11 mi
Time2:17:35
Pace10:30 /mi
📊Positive Split: 15.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:42:4727:268:5027:26
8:50
-
10K
6.21 mi12:10:1354:528:5027:26
8:50
0:00
15K
9.32 mi12:37:541:22:338:5127:41
8:55
+0:05
20K
12.43 mi13:07:441:52:239:0329:50
9:36
+0:41
Half
13.11 mi13:14:171:58:569:046:33
9:36
0:00
25K
15.53 mi13:38:092:22:489:1223:52
9:51
+0:15
30K
18.64 mi14:11:092:55:489:2633:00
10:37
+0:46
20M
20.00 mi14:25:413:10:209:3114:32
10:42
+0:05
21M
21.00 mi14:37:293:22:089:3811:48
11:48
+1:06
35K
21.75 mi14:45:383:30:179:408:09
10:54
-0:54
23M
23.00 mi14:58:563:43:359:4313:18
10:37
-0:17
24M
24.00 mi15:09:043:53:439:4410:08
10:08
-0:29
40K
24.85 mi15:18:354:03:149:479:31
11:08
+1:00
25.2M
25.20 mi15:22:124:06:519:483:37
10:29
-0:39
Finish
26.22 mi15:31:524:16:319:479:40
9:29
-1:00

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

8:50 /mi

Average Pace

9:47 /mi

Slowest Pace

11:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:08:36

50% of race

Time at Steady Pace

37:37

15% of race

Time at Slower Pace

1:30:18

35% of race

Average Pace: 9:47 /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 mi11:42:4727:268:5027:26
8:50
#19421
10K
6.21 mi12:10:1354:528:5027:26
8:50
#19186
15K
9.32 mi12:37:541:22:338:5127:41
8:55
#18947
20K
12.43 mi13:07:441:52:239:0329:50
9:36
#19156
Half
13.11 mi13:14:171:58:569:046:33
9:36
#19232
25K
15.53 mi13:38:092:22:489:1223:52
9:51
#19129
30K
18.64 mi14:11:092:55:489:2633:00
10:37
#19137
20M
20.00 mi14:25:413:10:209:3114:32
10:42
#19075
21M
21.00 mi14:37:293:22:089:3811:48
11:48
#19011
35K
21.75 mi14:45:383:30:179:408:09
10:54
#19009
23M
23.00 mi14:58:563:43:359:4313:18
10:37
#18882
24M
24.00 mi15:09:043:53:439:4410:08
10:08
#18774
40K
24.85 mi15:18:354:03:149:479:31
11:08
#18732
25.2M
25.20 mi15:22:124:06:519:483:37
10:29
#18648
Finish
26.22 mi15:31:524:16:319:479:40
9:29
#18559
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 mi194217589758918500(Top 72%)6972(Top 64%)6972(Top 150%)
10K6.21 mi3.10 mi19186+2357424+1657424+16519004(Top 74%)7295(Top 67%)7295(Top 157%)
15K9.32 mi3.11 mi18947+2397272+1527272+15218500(Top 72%)6972(Top 64%)6972(Top 150%)
20K12.43 mi3.11 mi19156-2097387-1157387-11519507(Top 76%)7547(Top 69%)7547(Top 162%)
Half13.11 mi0.68 mi19232-767430-437430-4320411(Top 80%)8112(Top 74%)8112(Top 174%)
25K15.53 mi2.42 mi19129+1037374+567374+5618690(Top 73%)7213(Top 66%)7213(Top 155%)
30K18.64 mi3.11 mi19137-87446-727446-7219077(Top 75%)7614(Top 70%)7614(Top 163%)
20M20.00 mi1.36 mi19075+627445+17445+118544(Top 73%)7480(Top 68%)7480(Top 161%)
21M21.00 mi1.00 mi19011+647441+47441+418359(Top 72%)7509(Top 69%)7509(Top 161%)
35K21.75 mi0.75 mi19009+27443-27443-219572(Top 77%)8112(Top 74%)8112(Top 174%)
23M23.00 mi1.25 mi18882+1277395+487395+4817376(Top 68%)7097(Top 65%)7097(Top 152%)
24M24.00 mi1.00 mi18774+1087364+317364+3116778(Top 66%)6838(Top 63%)6838(Top 147%)
40K24.85 mi0.85 mi18732+427363+17363+118443(Top 72%)7726(Top 71%)7726(Top 166%)
25.2M25.20 mi0.35 mi18648+847328+357328+3512842(Top 50%)5044(Top 46%)5044(Top 108%)
Finish26.22 mi1.02 mi18559+897313+157313+1516496(Top 65%)6760(Top 62%)6760(Top 145%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21story building
+97ft-345ft

Overall

18500

Females

6972

F18-39

6972

5K→10K

3.1 - 6.2 mi

Top 74%
×5story building
+79ft-138ft

Overall

19004

Females

7295

F18-39

7295

10K→15K

6.2 - 9.3 mi

Top 72%
×3story building
+67ft-78ft

Overall

18500

Females

6972

F18-39

6972

15K→20K

9.3 - 12.4 mi

Top 76%
×5story building
+106ft-86ft

Overall

19507

Females

7547

F18-39

7547

20K→Half

12.4 - 13.1 mi

Top 80%
×2story building
+19ft-37ft

Overall

20411

Females

8112

F18-39

8112

Half→25K

13.1 - 15.5 mi

Top 73%
×4story building
+66ft-88ft

Overall

18690

Females

7213

F18-39

7213

25K→30K

15.5 - 18.6 mi

Top 75%
×9story building
+181ft-148ft

Overall

19077

Females

7614

F18-39

7614

30K→20M

18.6 - 20.0 mi

Top 73%
×5story building
+64ft-50ft

Overall

18544

Females

7480

F18-39

7480

20M→21M

20.0 - 21.0 mi

Top 72%
×8story building
+106ft-24ft

Overall

18359

Females

7509

F18-39

7509

21M→35K

21.0 - 21.8 mi

Top 77%
×7story building
+17ft-86ft

Overall

19572

Females

8112

F18-39

8112

35K→23M

21.8 - 23.0 mi

Top 68%
×5story building
+23ft-63ft

Overall

17376

Females

7097

F18-39

7097

23M→24M

23.0 - 24.0 mi

Top 66%
×6story building
+12ft-82ft

Overall

16778

Females

6838

F18-39

6838

24M→40K

24.0 - 24.9 mi

Top 72%
×1story
+6ft-20ft

Overall

18443

Females

7726

F18-39

7726

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

12842

Females

5044

F18-39

5044

25.2M→Finish

25.2 - 26.2 mi

Top 65%
×2story building
+22ft-21ft

Overall

16496

Females

6760

F18-39

6760

Passing Analysis

Category:
Athletes Passed
2242
Passed By
1380
Net Change
+862
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19421
5K → 10K381146+235#19421#19186
10K → 15K33798+239#19186#18947
15K → 20K187396-209#18947#19156
20K → Half1894-76#19156#19232
Half → 25K245142+103#19232#19129
25K → 30K226234-8#19129#19137
30K → 20M12462+62#19137#19075
20M → 21M11955+64#19075#19011
21M → 35K5351+2#19011#19009
35K → 23M15326+127#19009#18882
23M → 24M12416+108#18882#18774
24M → 40K8543+42#18774#18732
40K → 25.2M840+84#18732#18648
25.2M → Finish10617+89#18648#18559
TOTALS22421380+862
📊

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