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BOSTON MARATHON 2023

Courtney Mckenzie

Bib: 15586•F

IA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 43%
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
8:04/mi
25:04
↑ 97↓ 3451.5%
10K· 6.21 mi
8:02/mi
50:01
↑ 79↓ 1380.4%
15K· 9.32 mi
7:54/mi
1:14:35
↑ 67↓ 78
20K· 12.43 mi
7:54/mi
1:39:09
↑ 106↓ 860.1%
Half· 13.11 mi
7:52/mi
1:44:31
↑ 19↓ 370.5%
25K· 15.53 mi
7:49/mi
2:03:28
↑ 66↓ 880.2%
30K· 18.64 mi
8:06/mi
2:28:39
↑ 181↓ 1480.2%
20M
8:39/mi
2:40:24
↑ 64↓ 500.2%
21M
9:22/mi
2:49:46
↑ 106↓ 241.6%
35K· 21.75 mi
10:06/mi
2:57:19
↑ 17↓ 861.7%
23M
9:33/mi
3:09:17
↑ 23↓ 630.6%
24M
10:10/mi
3:19:27
↓ 821.3%
40K· 24.85 mi
10:02/mi
3:28:02
↓ 200.3%
25.2M
10:15/mi
3:31:34
↑ 13↓ 160.2%
Finish· 26.22 mi
8:47/mi
3:40:31
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:31
Pace7:58 /mi
2nd Half
Distance13.11 mi
Time1:56:00
Pace8:51 /mi
📊Positive Split: 11.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:5925:048:0425:04
8:04
-
10K
6.21 mi11:19:5650:018:0324:57
8:02
-0:02
15K
9.32 mi11:44:301:14:358:0024:34
7:54
-0:08
20K
12.43 mi12:09:041:39:097:5924:34
7:54
0:00
Half
13.11 mi12:14:261:44:317:585:22
7:52
-0:02
25K
15.53 mi12:33:232:03:287:5718:57
7:49
-0:03
30K
18.64 mi12:58:342:28:397:5825:11
8:06
+0:17
20M
20.00 mi13:10:192:40:248:0111:45
8:39
+0:33
21M
21.00 mi13:19:412:49:468:059:22
9:22
+0:43
35K
21.75 mi13:27:142:57:198:097:33
10:06
+0:44
23M
23.00 mi13:39:123:09:178:1411:58
9:33
-0:33
24M
24.00 mi13:49:223:19:278:1910:10
10:10
+0:37
40K
24.85 mi13:57:573:28:028:228:35
10:02
-0:08
25.2M
25.20 mi14:01:293:31:348:243:32
10:15
+0:13
Finish
26.22 mi14:10:263:40:318:258:57
8:47
-1:28

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

7:49 /mi

Average Pace

8:25 /mi

Slowest Pace

10:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:28:39

67% of race

Time at Steady Pace

20:42

9% of race

Time at Slower Pace

51:10

23% of race

Average Pace: 8:25 /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 mi10:54:5925:048:0425:04
8:04
#14489
10K
6.21 mi11:19:5650:018:0324:57
8:02
#14744
15K
9.32 mi11:44:301:14:358:0024:34
7:54
#14375
20K
12.43 mi12:09:041:39:097:5924:34
7:54
#13929
Half
13.11 mi12:14:261:44:317:585:22
7:52
#13891
25K
15.53 mi12:33:232:03:287:5718:57
7:49
#13455
30K
18.64 mi12:58:342:28:397:5825:11
8:06
#13095
20M
20.00 mi13:10:192:40:248:0111:45
8:39
#13210
21M
21.00 mi13:19:412:49:468:059:22
9:22
#13336
35K
21.75 mi13:27:142:57:198:097:33
10:06
#13833
23M
23.00 mi13:39:123:09:178:1411:58
9:33
#14177
24M
24.00 mi13:49:223:19:278:1910:10
10:10
#14652
40K
24.85 mi13:57:573:28:028:228:35
10:02
#14915
25.2M
25.20 mi14:01:293:31:348:243:32
10:15
#14981
Finish
26.22 mi14:10:263:40:318:258:57
8:47
#15073
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi144894321432113648(Top 51%)3872(Top 34%)3872(Top 79%)
10K6.21 mi3.10 mi14744-2554495-1744495-17415032(Top 56%)4701(Top 41%)4701(Top 96%)
15K9.32 mi3.11 mi14375+3694282+2134282+21313648(Top 51%)3872(Top 34%)3872(Top 79%)
20K12.43 mi3.11 mi13929+4464043+2394043+23912699(Top 48%)3383(Top 30%)3383(Top 69%)
Half13.11 mi0.68 mi13891+384021+224021+2213413(Top 50%)3762(Top 33%)3762(Top 77%)
25K15.53 mi2.42 mi13455+4363778+2433778+24311261(Top 42%)2637(Top 23%)2637(Top 54%)
30K18.64 mi3.11 mi13095+3603610+1683610+16811704(Top 44%)3024(Top 26%)3024(Top 62%)
20M20.00 mi1.36 mi13210-1153689-793689-7914571(Top 55%)4749(Top 42%)4749(Top 97%)
21M21.00 mi1.00 mi13336-1263774-853774-8515342(Top 58%)5250(Top 46%)5250(Top 107%)
35K21.75 mi0.75 mi13833-4974091-3174091-31721534(Top 81%)8786(Top 77%)8786(Top 180%)
23M23.00 mi1.25 mi14177-3444333-2424333-24218549(Top 70%)7148(Top 63%)7148(Top 146%)
24M24.00 mi1.00 mi14652-4754653-3204653-32021234(Top 80%)8681(Top 76%)8681(Top 178%)
40K24.85 mi0.85 mi14915-2634829-1764829-17620078(Top 75%)8096(Top 71%)8096(Top 166%)
25.2M25.20 mi0.35 mi14981-664879-504879-5018284(Top 69%)7093(Top 62%)7093(Top 145%)
Finish26.22 mi1.02 mi15073-924952-734952-7316952(Top 64%)6339(Top 55%)6339(Top 130%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21story building
+97ft-345ft

Overall

13648

Females

3872

F18-39

3872

5K→10K

3.1 - 6.2 mi

Top 56%
×5story building
+79ft-138ft

Overall

15032

Females

4701

F18-39

4701

10K→15K

6.2 - 9.3 mi

Top 51%
×3story building
+67ft-78ft

Overall

13648

Females

3872

F18-39

3872

15K→20K

9.3 - 12.4 mi

Top 48%
×5story building
+106ft-86ft

Overall

12699

Females

3383

F18-39

3383

20K→Half

12.4 - 13.1 mi

Top 50%
×2story building
+19ft-37ft

Overall

13413

Females

3762

F18-39

3762

Half→25K

13.1 - 15.5 mi

Top 42%
×4story building
+66ft-88ft

Overall

11261

Females

2637

F18-39

2637

25K→30K

15.5 - 18.6 mi

Top 44%
×9story building
+181ft-148ft

Overall

11704

Females

3024

F18-39

3024

30K→20M

18.6 - 20.0 mi

Top 55%
×5story building
+64ft-50ft

Overall

14571

Females

4749

F18-39

4749

20M→21M

20.0 - 21.0 mi

Top 58%
×8story building
+106ft-24ft

Overall

15342

Females

5250

F18-39

5250

21M→35K

21.0 - 21.8 mi

Top 81%
×7story building
+17ft-86ft

Overall

21534

Females

8786

F18-39

8786

35K→23M

21.8 - 23.0 mi

Top 70%
×5story building
+23ft-63ft

Overall

18549

Females

7148

F18-39

7148

23M→24M

23.0 - 24.0 mi

Top 80%
×6story building
+12ft-82ft

Overall

21234

Females

8681

F18-39

8681

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

20078

Females

8096

F18-39

8096

40K→25.2M

24.9 - 25.2 mi

Top 69%
×1story
+13ft-16ft

Overall

18284

Females

7093

F18-39

7093

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2story building
+22ft-21ft

Overall

16952

Females

6339

F18-39

6339

Passing Analysis

Category:
Athletes Passed
2191
Passed By
2775
Net Change
-584
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14489
5K → 10K188443-255#14489#14744
10K → 15K42556+369#14744#14375
15K → 20K46923+446#14375#13929
20K → Half5416+38#13929#13891
Half → 25K4404+436#13891#13455
25K → 30K40141+360#13455#13095
30K → 20M55170-115#13095#13210
20M → 21M52178-126#13210#13336
21M → 35K6503-497#13336#13833
35K → 23M26370-344#13833#14177
23M → 24M11486-475#14177#14652
24M → 40K17280-263#14652#14915
40K → 25.2M1682-66#14915#14981
25.2M → Finish31123-92#14981#15073
TOTALS21912775-584
📊

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