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BOSTON MARATHON 2023

Mackenzie Smith

Bib: 15568•F

UT

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 40%
Masters (Masters Women)
#0 / 6539
Top 27%
Division (F40-44)
#0 / 1878
Top 48%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:43
Rank: #13705
Start → 5K
24:43 | 7:57/mi
10K· 6.21 mi
49:40
Rank: #14351 (-646)
5K → 10K
24:57 | 8:02/mi
15K· 9.32 mi
1:15:10
Rank: #14861 (-510)
10K → 15K
25:30 | 8:12/mi
20K· 12.43 mi
1:40:43
Rank: #14892 (-31)
15K → 20K
25:33 | 8:13/mi
Half· 13.11 mi
1:46:18
Rank: #14941 (-49)
20K → Half
5:35 | 8:11/mi
25K· 15.53 mi
2:06:17
Rank: #14842 (+99)
Half → 25K
19:59 | 8:15/mi
30K· 18.64 mi
2:32:40
Rank: #14729 (+113)
25K → 30K
26:23 | 8:30/mi
20M
2:44:16
Rank: #14656 (+73)
30K → 20M
11:36 | 8:32/mi
21M
2:53:44
Rank: #14716 (-60)
20M → 21M
9:28 | 9:28/mi
35K· 21.75 mi
3:00:43
Rank: #14917 (-201)
21M → 35K
6:59 | 9:20/mi
23M
3:11:13
Rank: #14767 (+150)
35K → 23M
10:30 | 8:23/mi
24M
3:19:33
Rank: #14683 (+84)
23M → 24M
8:20 | 8:20/mi
40K· 24.85 mi
3:26:42
Rank: #14567 (+116)
24M → 40K
7:09 | 8:22/mi
25.2M
3:29:54
Rank: #14556 (+11)
40K → 25.2M
3:12 | 9:17/mi
Finish· 26.22 mi
3:38:18
Rank: #14500 (+56)
25.2M → Finish
8:24 | 8:15/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:18
Pace8:07 /mi
2nd Half
Distance13.11 mi
Time1:52:00
Pace8:33 /mi
📊Positive Split: 5.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:3524:437:5724:43
7:57
-
10K
6.21 mi11:46:3249:408:0024:57
8:02
+0:05
15K
9.32 mi12:12:021:15:108:0425:30
8:12
+0:10
20K
12.43 mi12:37:351:40:438:0625:33
8:13
+0:01
Half
13.11 mi12:43:101:46:188:075:35
8:11
-0:02
25K
15.53 mi13:03:092:06:178:0819:59
8:15
+0:04
30K
18.64 mi13:29:322:32:408:1126:23
8:30
+0:15
20M
20.00 mi13:41:082:44:168:1311:36
8:32
+0:02
21M
21.00 mi13:50:362:53:448:169:28
9:28
+0:56
35K
21.75 mi13:57:353:00:438:196:59
9:20
-0:08
23M
23.00 mi14:08:053:11:138:1910:30
8:23
-0:57
24M
24.00 mi14:16:253:19:338:198:20
8:20
-0:03
40K
24.85 mi14:23:343:26:428:197:09
8:22
+0:02
25.2M
25.20 mi14:26:463:29:548:203:12
9:17
+0:55
Finish
26.22 mi14:35:103:38:188:208:24
8:15
-1:02

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

7:57 /mi

Average Pace

8:20 /mi

Slowest Pace

9:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:18:39

91% of race

Time at Steady Pace

10:11

5% of race

Time at Slower Pace

9:28

4% of race

Average Pace: 8:20 /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 mi11:21:3524:437:5724:43
7:57
#13705
10K
6.21 mi11:46:3249:408:0024:57
8:02
#14351
15K
9.32 mi12:12:021:15:108:0425:30
8:12
#14861
20K
12.43 mi12:37:351:40:438:0625:33
8:13
#14892
Half
13.11 mi12:43:101:46:188:075:35
8:11
#14941
25K
15.53 mi13:03:092:06:178:0819:59
8:15
#14842
30K
18.64 mi13:29:322:32:408:1126:23
8:30
#14729
20M
20.00 mi13:41:082:44:168:1311:36
8:32
#14656
21M
21.00 mi13:50:362:53:448:169:28
9:28
#14716
35K
21.75 mi13:57:353:00:438:196:59
9:20
#14917
23M
23.00 mi14:08:053:11:138:1910:30
8:23
#14767
24M
24.00 mi14:16:253:19:338:198:20
8:20
#14683
40K
24.85 mi14:23:343:26:428:197:09
8:22
#14567
25.2M
25.20 mi14:26:463:29:548:203:12
9:17
#14556
Finish
26.22 mi14:35:103:38:188:208:24
8:15
#14500
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi137053847384715915(Top 60%)5241(Top 46%)5241(Top 279%)
10K6.21 mi3.10 mi14351-6464257-4104257-41015027(Top 56%)4696(Top 41%)4696(Top 250%)
15K9.32 mi3.11 mi14861-5104574-3174574-31715915(Top 60%)5241(Top 46%)5241(Top 279%)
20K12.43 mi3.11 mi14892-314614-404614-4015124(Top 57%)4787(Top 42%)4787(Top 255%)
Half13.11 mi0.68 mi14941-494648-344648-3415698(Top 59%)5104(Top 45%)5104(Top 272%)
25K15.53 mi2.42 mi14842+994613+354613+3514547(Top 55%)4549(Top 40%)4549(Top 242%)
30K18.64 mi3.11 mi14729+1134574+394574+3914271(Top 54%)4495(Top 39%)4495(Top 239%)
20M20.00 mi1.36 mi14656+734554+204554+2013868(Top 52%)4337(Top 38%)4337(Top 231%)
21M21.00 mi1.00 mi14716-604624-704624-7015811(Top 59%)5514(Top 48%)5514(Top 294%)
35K21.75 mi0.75 mi14917-2014761-1374761-13719293(Top 72%)7534(Top 66%)7534(Top 401%)
23M23.00 mi1.25 mi14767+1504696+654696+6512526(Top 47%)3816(Top 33%)3816(Top 203%)
24M24.00 mi1.00 mi14683+844667+294667+2913465(Top 51%)4375(Top 38%)4375(Top 233%)
40K24.85 mi0.85 mi14567+1164618+494618+4912509(Top 47%)3950(Top 35%)3950(Top 210%)
25.2M25.20 mi0.35 mi14556+114624-64624-614137(Top 53%)4821(Top 42%)4821(Top 257%)
Finish26.22 mi1.02 mi14500+564598+264598+2613748(Top 52%)4607(Top 40%)4607(Top 245%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21stories
+97ft-345ft

Overall

15915

Females

5241

F40-44

5241

5K→10K

3.1 - 6.2 mi

Top 56%
×5stories
+79ft-138ft

Overall

15027

Females

4696

F40-44

4696

10K→15K

6.2 - 9.3 mi

Top 60%
×3stories
+67ft-78ft

Overall

15915

Females

5241

F40-44

5241

15K→20K

9.3 - 12.4 mi

Top 57%
×5stories
+106ft-86ft

Overall

15124

Females

4787

F40-44

4787

20K→Half

12.4 - 13.1 mi

Top 59%
×2stories
+19ft-37ft

Overall

15698

Females

5104

F40-44

5104

Half→25K

13.1 - 15.5 mi

Top 55%
×4stories
+66ft-88ft

Overall

14547

Females

4549

F40-44

4549

25K→30K

15.5 - 18.6 mi

Top 54%
×9stories
+181ft-148ft

Overall

14271

Females

4495

F40-44

4495

30K→20M

18.6 - 20.0 mi

Top 52%
×5stories
+64ft-50ft

Overall

13868

Females

4337

F40-44

4337

20M→21M

20.0 - 21.0 mi

Top 59%
×8stories
+106ft-24ft

Overall

15811

Females

5514

F40-44

5514

21M→35K

21.0 - 21.8 mi

Top 72%
×7stories
+17ft-86ft

Overall

19293

Females

7534

F40-44

7534

35K→23M

21.8 - 23.0 mi

Top 47%
×5stories
+23ft-63ft

Overall

12526

Females

3816

F40-44

3816

23M→24M

23.0 - 24.0 mi

Top 51%
×6stories
+12ft-82ft

Overall

13465

Females

4375

F40-44

4375

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

12509

Females

3950

F40-44

3950

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

14137

Females

4821

F40-44

4821

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2stories
+22ft-21ft

Overall

13748

Females

4607

F40-44

4607

Passing Analysis

Category:
Athletes Passed
1468
Passed By
2263
Net Change
-795
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13705
5K → 10K84730-646#13705#14351
10K → 15K59569-510#14351#14861
15K → 20K174205-31#14861#14892
20K → Half2170-49#14892#14941
Half → 25K17980+99#14941#14842
25K → 30K223110+113#14842#14729
30K → 20M12047+73#14729#14656
20M → 21M61121-60#14656#14716
21M → 35K13214-201#14716#14917
35K → 23M17323+150#14917#14767
23M → 24M11026+84#14767#14683
24M → 40K1237+116#14683#14567
40K → 25.2M3625+11#14567#14556
25.2M → Finish9236+56#14556#14500
TOTALS14682263-795
📊

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