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BOSTON MARATHON 2023

Nathan Kuck

Bib: 646•M

MI

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 3%
Gender (Male)
#0 / 15176
Top 6%
Division (M18-39)
#0 / 5285
Top 14%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
17:58
Rank: #369
Start → 5K
17:58 | 5:47/mi
10K· 6.21 mi
35:49
Rank: #373 (-4)
5K → 10K
17:51 | 5:45/mi
15K· 9.32 mi
53:37
Rank: #337 (+36)
10K → 15K
17:48 | 5:44/mi
20K· 12.43 mi
1:12:02
Rank: #358 (-21)
15K → 20K
18:25 | 5:56/mi
Half· 13.11 mi
1:16:07
Rank: #372 (-14)
20K → Half
4:05 | 5:59/mi
25K· 15.53 mi
1:30:55
Rank: #406 (-34)
Half → 25K
14:48 | 6:06/mi
30K· 18.64 mi
1:50:37
Rank: #480 (-74)
25K → 30K
19:42 | 6:20/mi
20M
2:00:51
Rank: #625 (-145)
30K → 20M
10:14 | 7:32/mi
21M
2:07:51
Rank: #661 (-36)
20M → 21M
7:00 | 7:00/mi
35K· 21.75 mi
2:13:07
Rank: #741 (-80)
21M → 35K
5:16 | 7:02/mi
23M
2:21:30
Rank: #771 (-30)
35K → 23M
8:23 | 6:42/mi
24M
2:28:11
Rank: #809 (-38)
23M → 24M
6:41 | 6:41/mi
40K· 24.85 mi
2:34:13
Rank: #855 (-46)
24M → 40K
6:02 | 7:03/mi
25.2M
2:36:47
Rank: #873 (-18)
40K → 25.2M
2:34 | 7:27/mi
Finish· 26.22 mi
2:43:40
Rank: #922 (-49)
25.2M → Finish
6:53 | 6:45/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:16:07
Pace5:48 /mi
2nd Half
Distance13.11 mi
Time1:27:33
Pace6:41 /mi
📊Positive Split: 15.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:0317:585:4717:58
5:47
-
10K
6.21 mi10:35:5435:495:4617:51
5:45
-0:02
15K
9.32 mi10:53:4253:375:4517:48
5:44
-0:01
20K
12.43 mi11:12:071:12:025:4818:25
5:56
+0:12
Half
13.11 mi11:16:121:16:075:484:05
5:59
+0:03
25K
15.53 mi11:31:001:30:555:5114:48
6:06
+0:07
30K
18.64 mi11:50:421:50:375:5619:42
6:20
+0:14
20M
20.00 mi12:00:562:00:516:0310:14
7:32
+1:12
21M
21.00 mi12:07:562:07:516:057:00
7:00
-0:32
35K
21.75 mi12:13:122:13:076:075:16
7:02
+0:02
23M
23.00 mi12:21:352:21:306:098:23
6:42
-0:20
24M
24.00 mi12:28:162:28:116:106:41
6:41
-0:01
40K
24.85 mi12:34:182:34:136:126:02
7:03
+0:22
25.2M
25.20 mi12:36:522:36:476:132:34
7:27
+0:24
Finish
26.22 mi12:43:452:43:406:156:53
6:45
-0:42

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

5:44 /mi

Average Pace

6:15 /mi

Slowest Pace

7:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:50:37

68% of race

Time at Steady Pace

21:57

13% of race

Time at Slower Pace

31:06

19% of race

Average Pace: 6:15 /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 mi10:18:0317:585:4717:58
5:47
#369
10K
6.21 mi10:35:5435:495:4617:51
5:45
#373
15K
9.32 mi10:53:4253:375:4517:48
5:44
#337
20K
12.43 mi11:12:071:12:025:4818:25
5:56
#358
Half
13.11 mi11:16:121:16:075:484:05
5:59
#372
25K
15.53 mi11:31:001:30:555:5114:48
6:06
#406
30K
18.64 mi11:50:421:50:375:5619:42
6:20
#480
20M
20.00 mi12:00:562:00:516:0310:14
7:32
#625
21M
21.00 mi12:07:562:07:516:057:00
7:00
#661
35K
21.75 mi12:13:122:13:076:075:16
7:02
#741
23M
23.00 mi12:21:352:21:306:098:23
6:42
#771
24M
24.00 mi12:28:162:28:116:106:41
6:41
#809
40K
24.85 mi12:34:182:34:136:126:02
7:03
#855
25.2M
25.20 mi12:36:522:36:476:132:34
7:27
#873
Finish
26.22 mi12:43:452:43:406:156:53
6:45
#922
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi369335335282(Top 1%)251(Top 2%)251(Top 5%)
10K6.21 mi3.10 mi373-4338-3338-3372(Top 1%)337(Top 2%)337(Top 6%)
15K9.32 mi3.11 mi337+36304+34304+34282(Top 1%)251(Top 2%)251(Top 5%)
20K12.43 mi3.11 mi358-21325-21325-21465(Top 2%)428(Top 3%)428(Top 8%)
Half13.11 mi0.68 mi372-14338-13338-13732(Top 3%)691(Top 5%)691(Top 13%)
25K15.53 mi2.42 mi406-34371-33371-33761(Top 3%)720(Top 5%)720(Top 14%)
30K18.64 mi3.11 mi480-74442-71442-711034(Top 4%)983(Top 6%)983(Top 19%)
20M20.00 mi1.36 mi625-145585-143585-1436954(Top 26%)5932(Top 39%)5932(Top 112%)
21M21.00 mi1.00 mi661-36619-34619-342118(Top 8%)1999(Top 13%)1999(Top 38%)
35K21.75 mi0.75 mi741-80699-80699-805504(Top 21%)4867(Top 32%)4867(Top 92%)
23M23.00 mi1.25 mi771-30728-29728-292140(Top 8%)2020(Top 13%)2020(Top 38%)
24M24.00 mi1.00 mi809-38764-36764-362976(Top 11%)2760(Top 18%)2760(Top 52%)
40K24.85 mi0.85 mi855-46809-45809-454091(Top 15%)3652(Top 24%)3652(Top 69%)
25.2M25.20 mi0.35 mi873-18827-18827-183524(Top 13%)3152(Top 21%)3152(Top 60%)
Finish26.22 mi1.02 mi922-49875-48875-483781(Top 14%)3353(Top 22%)3353(Top 63%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 1%
×21stories
+97ft-345ft

Overall

282

Males

251

M18-39

251

5K→10K

3.1 - 6.2 mi

Top 1%
×5stories
+79ft-138ft

Overall

372

Males

337

M18-39

337

10K→15K

6.2 - 9.3 mi

Top 1%
×3stories
+67ft-78ft

Overall

282

Males

251

M18-39

251

15K→20K

9.3 - 12.4 mi

Top 2%
×5stories
+106ft-86ft

Overall

465

Males

428

M18-39

428

20K→Half

12.4 - 13.1 mi

Top 3%
×2stories
+19ft-37ft

Overall

732

Males

691

M18-39

691

Half→25K

13.1 - 15.5 mi

Top 3%
×4stories
+66ft-88ft

Overall

761

Males

720

M18-39

720

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

1034

Males

983

M18-39

983

30K→20M

18.6 - 20.0 mi

Top 26%
×5stories
+64ft-50ft

Overall

6954

Males

5932

M18-39

5932

20M→21M

20.0 - 21.0 mi

Top 8%
×8stories
+106ft-24ft

Overall

2118

Males

1999

M18-39

1999

21M→35K

21.0 - 21.8 mi

Top 21%
×7stories
+17ft-86ft

Overall

5504

Males

4867

M18-39

4867

35K→23M

21.8 - 23.0 mi

Top 8%
×5stories
+23ft-63ft

Overall

2140

Males

2020

M18-39

2020

23M→24M

23.0 - 24.0 mi

Top 11%
×6stories
+12ft-82ft

Overall

2976

Males

2760

M18-39

2760

24M→40K

24.0 - 24.9 mi

Top 15%
×1story
+6ft-20ft

Overall

4091

Males

3652

M18-39

3652

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3524

Males

3152

M18-39

3152

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2stories
+22ft-21ft

Overall

3781

Males

3353

M18-39

3353

Passing Analysis

Category:
Athletes Passed
87
Passed By
640
Net Change
-553
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#369
5K → 10K1721-4#369#373
10K → 15K360+36#373#337
15K → 20K526-21#337#358
20K → Half014-14#358#372
Half → 25K337-34#372#406
25K → 30K781-74#406#480
30K → 20M0145-145#480#625
20M → 21M137-36#625#661
21M → 35K080-80#661#741
35K → 23M434-30#741#771
23M → 24M139-38#771#809
24M → 40K450-46#809#855
40K → 25.2M220-18#855#873
25.2M → Finish756-49#873#922
TOTALS87640-553
📊

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