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BOSTON MARATHON 2023

Clayton Birkes

Bib: 4758•M

MT

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 24%
Gender (Male)
#0 / 15176
Top 38%
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:05
Rank: #4565
Start → 5K
21:05 | 6:47/mi
10K· 6.21 mi
41:53
Rank: #4390 (+175)
5K → 10K
20:48 | 6:42/mi
15K· 9.32 mi
1:02:45
Rank: #4349 (+41)
10K → 15K
20:52 | 6:43/mi
20K· 12.43 mi
1:24:18
Rank: #4679 (-330)
15K → 20K
21:33 | 6:56/mi
Half· 13.11 mi
1:28:57
Rank: #4711 (-32)
20K → Half
4:39 | 6:49/mi
25K· 15.53 mi
1:46:42
Rank: #5357 (-646)
Half → 25K
17:45 | 7:19/mi
30K· 18.64 mi
2:09:58
Rank: #5652 (-295)
25K → 30K
23:16 | 7:29/mi
20M
2:20:16
Rank: #5726 (-74)
30K → 20M
10:18 | 7:35/mi
21M
2:28:34
Rank: #5848 (-122)
20M → 21M
8:18 | 8:18/mi
35K· 21.75 mi
2:34:30
Rank: #5988 (-140)
21M → 35K
5:56 | 7:56/mi
23M
2:44:36
Rank: #6147 (-159)
35K → 23M
10:06 | 8:04/mi
24M
2:52:45
Rank: #6307 (-160)
23M → 24M
8:09 | 8:09/mi
40K· 24.85 mi
2:59:55
Rank: #6470 (-163)
24M → 40K
7:10 | 8:23/mi
25.2M
3:02:43
Rank: #6444 (+26)
40K → 25.2M
2:48 | 8:07/mi
Finish· 26.22 mi
3:10:02
Rank: #6431 (+13)
25.2M → Finish
7:19 | 7:11/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:57
Pace6:47 /mi
2nd Half
Distance13.11 mi
Time1:41:05
Pace7:43 /mi
📊Positive Split: 13.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:0021:056:4721:05
6:47
-
10K
6.21 mi10:43:4841:536:4420:48
6:42
-0:05
15K
9.32 mi11:04:401:02:456:4420:52
6:43
+0:01
20K
12.43 mi11:26:131:24:186:4721:33
6:56
+0:13
Half
13.11 mi11:30:521:28:576:474:39
6:49
-0:07
25K
15.53 mi11:48:371:46:426:5217:45
7:19
+0:30
30K
18.64 mi12:11:532:09:586:5823:16
7:29
+0:10
20M
20.00 mi12:22:112:20:167:0110:18
7:35
+0:06
21M
21.00 mi12:30:292:28:347:048:18
8:18
+0:43
35K
21.75 mi12:36:252:34:307:065:56
7:56
-0:22
23M
23.00 mi12:46:312:44:367:0910:06
8:04
+0:08
24M
24.00 mi12:54:402:52:457:128:09
8:09
+0:05
40K
24.85 mi13:01:502:59:557:147:10
8:23
+0:14
25.2M
25.20 mi13:04:383:02:437:152:48
8:07
-0:16
Finish
26.22 mi13:11:573:10:027:157:19
7:11
-0:56

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

6:42 /mi

Average Pace

7:15 /mi

Slowest Pace

8:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:28:57

47% of race

Time at Steady Pace

58:38

31% of race

Time at Slower Pace

42:27

22% of race

Average Pace: 7:15 /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 mi10:23:0021:056:4721:05
6:47
#4565
10K
6.21 mi10:43:4841:536:4420:48
6:42
#4390
15K
9.32 mi11:04:401:02:456:4420:52
6:43
#4349
20K
12.43 mi11:26:131:24:186:4721:33
6:56
#4679
Half
13.11 mi11:30:521:28:576:474:39
6:49
#4711
25K
15.53 mi11:48:371:46:426:5217:45
7:19
#5357
30K
18.64 mi12:11:532:09:586:5823:16
7:29
#5652
20M
20.00 mi12:22:112:20:167:0110:18
7:35
#5726
21M
21.00 mi12:30:292:28:347:048:18
8:18
#5848
35K
21.75 mi12:36:252:34:307:065:56
7:56
#5988
23M
23.00 mi12:46:312:44:367:0910:06
8:04
#6147
24M
24.00 mi12:54:402:52:457:128:09
8:09
#6307
40K
24.85 mi13:01:502:59:557:147:10
8:23
#6470
25.2M
25.20 mi13:04:383:02:437:152:48
8:07
#6444
Finish
26.22 mi13:11:573:10:027:157:19
7:11
#6431
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4565425942594303(Top 16%)4033(Top 27%)4033(Top 76%)
10K6.21 mi3.10 mi4390+1754111+1484111+1484297(Top 16%)4025(Top 27%)4025(Top 76%)
15K9.32 mi3.11 mi4349+414071+404071+404303(Top 16%)4033(Top 27%)4033(Top 76%)
20K12.43 mi3.11 mi4679-3304366-2954366-2955582(Top 21%)5130(Top 34%)5130(Top 97%)
Half13.11 mi0.68 mi4711-324392-264392-265435(Top 20%)5018(Top 33%)5018(Top 95%)
25K15.53 mi2.42 mi5357-6464954-5624954-5627402(Top 28%)6414(Top 42%)6414(Top 121%)
30K18.64 mi3.11 mi5652-2955187-2335187-2337136(Top 27%)6151(Top 41%)6151(Top 116%)
20M20.00 mi1.36 mi5726-745242-555242-557331(Top 28%)6169(Top 41%)6169(Top 117%)
21M21.00 mi1.00 mi5848-1225322-805322-809197(Top 35%)7169(Top 47%)7169(Top 136%)
35K21.75 mi0.75 mi5988-1405422-1005422-10011556(Top 43%)8348(Top 55%)8348(Top 158%)
23M23.00 mi1.25 mi6147-1595537-1155537-11510191(Top 38%)7572(Top 50%)7572(Top 143%)
24M24.00 mi1.00 mi6307-1605644-1075644-10712205(Top 46%)8478(Top 56%)8478(Top 160%)
40K24.85 mi0.85 mi6470-1635749-1055749-10512544(Top 47%)8552(Top 56%)8552(Top 162%)
25.2M25.20 mi0.35 mi6444+265725+245725+247131(Top 27%)5645(Top 37%)5645(Top 107%)
Finish26.22 mi1.02 mi6431+135703+225703+226273(Top 24%)5112(Top 34%)5112(Top 97%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4303

Males

4033

M18-39

4033

5K→10K

3.1 - 6.2 mi

Top 16%
×5stories
+79ft-138ft

Overall

4297

Males

4025

M18-39

4025

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4303

Males

4033

M18-39

4033

15K→20K

9.3 - 12.4 mi

Top 21%
×5stories
+106ft-86ft

Overall

5582

Males

5130

M18-39

5130

20K→Half

12.4 - 13.1 mi

Top 20%
×2stories
+19ft-37ft

Overall

5435

Males

5018

M18-39

5018

Half→25K

13.1 - 15.5 mi

Top 28%
×4stories
+66ft-88ft

Overall

7402

Males

6414

M18-39

6414

25K→30K

15.5 - 18.6 mi

Top 27%
×9stories
+181ft-148ft

Overall

7136

Males

6151

M18-39

6151

30K→20M

18.6 - 20.0 mi

Top 28%
×5stories
+64ft-50ft

Overall

7331

Males

6169

M18-39

6169

20M→21M

20.0 - 21.0 mi

Top 35%
×8stories
+106ft-24ft

Overall

9197

Males

7169

M18-39

7169

21M→35K

21.0 - 21.8 mi

Top 43%
×7stories
+17ft-86ft

Overall

11556

Males

8348

M18-39

8348

35K→23M

21.8 - 23.0 mi

Top 38%
×5stories
+23ft-63ft

Overall

10191

Males

7572

M18-39

7572

23M→24M

23.0 - 24.0 mi

Top 46%
×6stories
+12ft-82ft

Overall

12205

Males

8478

M18-39

8478

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

12544

Males

8552

M18-39

8552

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7131

Males

5645

M18-39

5645

25.2M→Finish

25.2 - 26.2 mi

Top 24%
×2stories
+22ft-21ft

Overall

6273

Males

5112

M18-39

5112

Passing Analysis

Category:
Athletes Passed
796
Passed By
2662
Net Change
-1866
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4565
5K → 10K305130+175#4565#4390
10K → 15K148107+41#4390#4349
15K → 20K34364-330#4349#4679
20K → Half840-32#4679#4711
Half → 25K19665-646#4711#5357
25K → 30K53348-295#5357#5652
30K → 20M35109-74#5652#5726
20M → 21M26148-122#5726#5848
21M → 35K10150-140#5848#5988
35K → 23M27186-159#5988#6147
23M → 24M29189-160#6147#6307
24M → 40K13176-163#6307#6470
40K → 25.2M3812+26#6470#6444
25.2M → Finish5138+13#6444#6431
TOTALS7962662-1866
📊

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