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BOSTON MARATHON 2023

Mckenzie Singleton

Bib: 13644•F

TX

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ 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
8:44/mi
27:08
↑ 97↓ 3451.5%
10K· 6.21 mi
8:37/mi
53:55
↑ 79↓ 1380.4%
15K· 9.32 mi
8:34/mi
1:20:32
↑ 67↓ 78
20K· 12.43 mi
8:41/mi
1:47:32
↑ 106↓ 860.1%
Half· 13.11 mi
8:36/mi
1:53:24
↑ 19↓ 370.5%
25K· 15.53 mi
8:45/mi
2:14:37
↑ 66↓ 880.2%
30K· 18.64 mi
9:10/mi
2:43:05
↑ 181↓ 1480.2%
20M
9:27/mi
2:55:56
↑ 64↓ 500.2%
21M
10:05/mi
3:06:01
↑ 106↓ 241.6%
35K· 21.75 mi
10:36/mi
3:13:57
↑ 17↓ 861.7%
23M
9:57/mi
3:26:25
↑ 23↓ 630.6%
24M
10:34/mi
3:36:59
↓ 821.3%
40K· 24.85 mi
14:49/mi
3:49:39
↓ 200.3%
25.2M
10:21/mi
3:53:13
↑ 13↓ 160.2%
Finish· 26.22 mi
8:54/mi
4:02:17
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:24
Pace8:39 /mi
2nd Half
Distance13.11 mi
Time2:08:53
Pace9:50 /mi
📊Positive Split: 13.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:1327:088:4427:08
8:44
-
10K
6.21 mi11:50:0053:558:4126:47
8:37
-0:07
15K
9.32 mi12:16:371:20:328:3826:37
8:34
-0:03
20K
12.43 mi12:43:371:47:328:3927:00
8:41
+0:07
Half
13.11 mi12:49:291:53:248:395:52
8:36
-0:05
25K
15.53 mi13:10:422:14:378:4021:13
8:45
+0:09
30K
18.64 mi13:39:102:43:058:4528:28
9:10
+0:25
20M
20.00 mi13:52:012:55:568:4812:51
9:27
+0:17
21M
21.00 mi14:02:063:06:018:5110:05
10:05
+0:38
35K
21.75 mi14:10:023:13:578:557:56
10:36
+0:31
23M
23.00 mi14:22:303:26:258:5812:28
9:57
-0:39
24M
24.00 mi14:33:043:36:599:0210:34
10:34
+0:37
40K
24.85 mi14:45:443:49:399:1412:40
14:49
+4:15
25.2M
25.20 mi14:49:183:53:139:153:34
10:21
-4:28
Finish
26.22 mi14:58:224:02:179:159:04
8:54
-1:27

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

8:34 /mi

Average Pace

9:15 /mi

Slowest Pace

14:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

3:05:00

76% of race

Time at Slower Pace

57:17

24% of race

Average Pace: 9:14 /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 mi11:23:1327:088:4427:08
8:44
#19104
10K
6.21 mi11:50:0053:558:4126:47
8:37
#18988
15K
9.32 mi12:16:371:20:328:3826:37
8:34
#18699
20K
12.43 mi12:43:371:47:328:3927:00
8:41
#18526
Half
13.11 mi12:49:291:53:248:395:52
8:36
#18520
25K
15.53 mi13:10:422:14:378:4021:13
8:45
#18380
30K
18.64 mi13:39:102:43:058:4528:28
9:10
#18277
20M
20.00 mi13:52:012:55:568:4812:51
9:27
#18322
21M
21.00 mi14:02:063:06:018:5110:05
10:05
#18327
35K
21.75 mi14:10:023:13:578:557:56
10:36
#18584
23M
23.00 mi14:22:303:26:258:5812:28
9:57
#18704
24M
24.00 mi14:33:043:36:599:0210:34
10:34
#18965
40K
24.85 mi14:45:443:49:399:1412:40
14:49
#19736
25.2M
25.20 mi14:49:183:53:139:153:34
10:21
#19722
Finish
26.22 mi14:58:224:02:179:159:04
8:54
#19652
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi191047265726518259(Top 69%)6653(Top 58%)6653(Top 136%)
10K6.21 mi3.10 mi18988+1167143+1227143+12218963(Top 71%)7067(Top 62%)7067(Top 145%)
15K9.32 mi3.11 mi18699+2896940+2036940+20318259(Top 69%)6653(Top 58%)6653(Top 136%)
20K12.43 mi3.11 mi18526+1736819+1216819+12118076(Top 68%)6555(Top 57%)6555(Top 134%)
Half13.11 mi0.68 mi18520+66813+66813+618392(Top 69%)6727(Top 59%)6727(Top 138%)
25K15.53 mi2.42 mi18380+1406753+606753+6017689(Top 66%)6397(Top 56%)6397(Top 131%)
30K18.64 mi3.11 mi18277+1036727+266727+2618005(Top 68%)6656(Top 58%)6656(Top 136%)
20M20.00 mi1.36 mi18322-456774-476774-4718706(Top 70%)7138(Top 62%)7138(Top 146%)
21M21.00 mi1.00 mi18327-56787-136787-1318350(Top 69%)6969(Top 61%)6969(Top 143%)
35K21.75 mi0.75 mi18584-2576926-1396926-13922586(Top 85%)9360(Top 82%)9360(Top 192%)
23M23.00 mi1.25 mi18704-1207019-937019-9319870(Top 75%)7886(Top 69%)7886(Top 161%)
24M24.00 mi1.00 mi18965-2617178-1597178-15922173(Top 83%)9194(Top 80%)9194(Top 188%)
40K24.85 mi0.85 mi19736-7717628-4507628-45026077(Top 98%)11210(Top 98%)11210(Top 230%)
25.2M25.20 mi0.35 mi19722+147627+17627+118653(Top 70%)7315(Top 64%)7315(Top 150%)
Finish26.22 mi1.02 mi19652+707586+417586+4117517(Top 66%)6668(Top 58%)6668(Top 137%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21story building
+97ft-345ft

Overall

18259

Females

6653

F18-39

6653

5K→10K

3.1 - 6.2 mi

Top 71%
×5story building
+79ft-138ft

Overall

18963

Females

7067

F18-39

7067

10K→15K

6.2 - 9.3 mi

Top 69%
×3story building
+67ft-78ft

Overall

18259

Females

6653

F18-39

6653

15K→20K

9.3 - 12.4 mi

Top 68%
×5story building
+106ft-86ft

Overall

18076

Females

6555

F18-39

6555

20K→Half

12.4 - 13.1 mi

Top 69%
×2story building
+19ft-37ft

Overall

18392

Females

6727

F18-39

6727

Half→25K

13.1 - 15.5 mi

Top 66%
×4story building
+66ft-88ft

Overall

17689

Females

6397

F18-39

6397

25K→30K

15.5 - 18.6 mi

Top 68%
×9story building
+181ft-148ft

Overall

18005

Females

6656

F18-39

6656

30K→20M

18.6 - 20.0 mi

Top 70%
×5story building
+64ft-50ft

Overall

18706

Females

7138

F18-39

7138

20M→21M

20.0 - 21.0 mi

Top 69%
×8story building
+106ft-24ft

Overall

18350

Females

6969

F18-39

6969

21M→35K

21.0 - 21.8 mi

Top 85%
×7story building
+17ft-86ft

Overall

22586

Females

9360

F18-39

9360

35K→23M

21.8 - 23.0 mi

Top 75%
×5story building
+23ft-63ft

Overall

19870

Females

7886

F18-39

7886

23M→24M

23.0 - 24.0 mi

Top 83%
×6story building
+12ft-82ft

Overall

22173

Females

9194

F18-39

9194

24M→40K

24.0 - 24.9 mi

Top 98%
×1story
+6ft-20ft

Overall

26077

Females

11210

F18-39

11210

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

18653

Females

7315

F18-39

7315

25.2M→Finish

25.2 - 26.2 mi

Top 66%
×2story building
+22ft-21ft

Overall

17517

Females

6668

F18-39

6668

Passing Analysis

Category:
Athletes Passed
1836
Passed By
2384
Net Change
-548
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19104
5K → 10K409293+116#19104#18988
10K → 15K36778+289#18988#18699
15K → 20K24673+173#18699#18526
20K → Half2923+6#18526#18520
Half → 25K20666+140#18520#18380
25K → 30K232129+103#18380#18277
30K → 20M75120-45#18277#18322
20M → 21M8893-5#18322#18327
21M → 35K11268-257#18327#18584
35K → 23M46166-120#18584#18704
23M → 24M11272-261#18704#18965
24M → 40K1772-771#18965#19736
40K → 25.2M3016+14#19736#19722
25.2M → Finish8515+70#19722#19652
TOTALS18362384-548
📊

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