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BOSTON MARATHON 2023

Joost Schellekens

Bib: 6034•M

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 41%
Gender (Male)
#0 / 15176
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
23:00
Rank: #8842
Start → 5K
23:00 | 7:24/mi
10K· 6.21 mi
46:55
Rank: #10473 (-1631)
5K → 10K
23:55 | 7:42/mi
15K· 9.32 mi
1:10:53
Rank: #10961 (-488)
10K → 15K
23:58 | 7:43/mi
20K· 12.43 mi
1:35:19
Rank: #11258 (-297)
15K → 20K
24:26 | 7:52/mi
Half· 13.11 mi
1:40:57
Rank: #11535 (-277)
20K → Half
5:38 | 8:15/mi
25K· 15.53 mi
2:00:01
Rank: #11493 (+42)
Half → 25K
19:04 | 7:52/mi
30K· 18.64 mi
2:25:00
Rank: #11432 (+61)
25K → 30K
24:59 | 8:02/mi
20M
2:35:49
Rank: #11279 (+153)
30K → 20M
10:49 | 7:58/mi
21M
2:44:14
Rank: #11167 (+112)
20M → 21M
8:25 | 8:25/mi
35K· 21.75 mi
2:50:11
Rank: #11187 (-20)
21M → 35K
5:57 | 7:57/mi
23M
3:00:24
Rank: #11153 (+34)
35K → 23M
10:13 | 8:10/mi
24M
3:08:19
Rank: #11128 (+25)
23M → 24M
7:55 | 7:55/mi
40K· 24.85 mi
3:15:10
Rank: #11053 (+75)
24M → 40K
6:51 | 8:01/mi
25.2M
3:18:06
Rank: #11015 (+38)
40K → 25.2M
2:56 | 8:30/mi
Finish· 26.22 mi
3:26:11
Rank: #11033 (-18)
25.2M → Finish
8:05 | 7:56/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:57
Pace7:42 /mi
2nd Half
Distance13.11 mi
Time1:45:14
Pace8:02 /mi
📊Positive Split: 4.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:1423:007:2423:00
7:24
-
10K
6.21 mi10:50:0946:557:3323:55
7:42
+0:18
15K
9.32 mi11:14:071:10:537:3623:58
7:43
+0:01
20K
12.43 mi11:38:331:35:197:4024:26
7:52
+0:09
Half
13.11 mi11:44:111:40:577:425:38
8:15
+0:23
25K
15.53 mi12:03:152:00:017:4419:04
7:52
-0:23
30K
18.64 mi12:28:142:25:007:4724:59
8:02
+0:10
20M
20.00 mi12:39:032:35:497:4710:49
7:58
-0:04
21M
21.00 mi12:47:282:44:147:498:25
8:25
+0:27
35K
21.75 mi12:53:252:50:117:505:57
7:57
-0:28
23M
23.00 mi13:03:383:00:247:5110:13
8:10
+0:13
24M
24.00 mi13:11:333:08:197:517:55
7:55
-0:15
40K
24.85 mi13:18:243:15:107:516:51
8:01
+0:06
25.2M
25.20 mi13:21:203:18:067:522:56
8:30
+0:29
Finish
26.22 mi13:29:253:26:117:528:05
7:56
-0:34

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

7:24 /mi

Average Pace

7:52 /mi

Slowest Pace

8:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:58:59

87% of race

Time at Steady Pace

27:12

13% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:52 /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 mi10:26:1423:007:2423:00
7:24
#8842
10K
6.21 mi10:50:0946:557:3323:55
7:42
#10473
15K
9.32 mi11:14:071:10:537:3623:58
7:43
#10961
20K
12.43 mi11:38:331:35:197:4024:26
7:52
#11258
Half
13.11 mi11:44:111:40:577:425:38
8:15
#11535
25K
15.53 mi12:03:152:00:017:4419:04
7:52
#11493
30K
18.64 mi12:28:142:25:007:4724:59
8:02
#11432
20M
20.00 mi12:39:032:35:497:4710:49
7:58
#11279
21M
21.00 mi12:47:282:44:147:498:25
8:25
#11167
35K
21.75 mi12:53:252:50:117:505:57
7:57
#11187
23M
23.00 mi13:03:383:00:247:5110:13
8:10
#11153
24M
24.00 mi13:11:333:08:197:517:55
7:55
#11128
40K
24.85 mi13:18:243:15:107:516:51
8:01
#11053
25.2M
25.20 mi13:21:203:18:067:522:56
8:30
#11015
Finish
26.22 mi13:29:253:26:117:528:05
7:56
#11033
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi88427501750111944(Top 45%)9055(Top 60%)9055(Top 171%)
10K6.21 mi3.10 mi10473-16318402-9018402-90112203(Top 46%)9196(Top 61%)9196(Top 174%)
15K9.32 mi3.11 mi10961-4888633-2318633-23111944(Top 45%)9055(Top 60%)9055(Top 171%)
20K12.43 mi3.11 mi11258-2978764-1318764-13112268(Top 46%)9131(Top 60%)9131(Top 173%)
Half13.11 mi0.68 mi11535-2778874-1108874-11016129(Top 61%)10714(Top 71%)10714(Top 203%)
25K15.53 mi2.42 mi11493+428839+358839+3511622(Top 44%)8757(Top 58%)8757(Top 166%)
30K18.64 mi3.11 mi11432+618764+758764+7511218(Top 42%)8456(Top 56%)8456(Top 160%)
20M20.00 mi1.36 mi11279+1538675+898675+899963(Top 37%)7745(Top 51%)7745(Top 147%)
21M21.00 mi1.00 mi11167+1128608+678608+679955(Top 37%)7584(Top 50%)7584(Top 144%)
35K21.75 mi0.75 mi11187-208607+18607+111739(Top 44%)8439(Top 56%)8439(Top 160%)
23M23.00 mi1.25 mi11153+348559+488559+4810878(Top 41%)7903(Top 52%)7903(Top 150%)
24M24.00 mi1.00 mi11128+258521+388521+3810634(Top 40%)7730(Top 51%)7730(Top 146%)
40K24.85 mi0.85 mi11053+758458+638458+6310113(Top 38%)7394(Top 49%)7394(Top 140%)
25.2M25.20 mi0.35 mi11015+388425+338425+339526(Top 36%)7052(Top 46%)7052(Top 133%)
Finish26.22 mi1.02 mi11033-188406+198406+1911597(Top 44%)8090(Top 53%)8090(Top 153%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×21stories
+97ft-345ft

Overall

11944

Males

9055

M18-39

9055

5K→10K

3.1 - 6.2 mi

Top 46%
×5stories
+79ft-138ft

Overall

12203

Males

9196

M18-39

9196

10K→15K

6.2 - 9.3 mi

Top 45%
×3stories
+67ft-78ft

Overall

11944

Males

9055

M18-39

9055

15K→20K

9.3 - 12.4 mi

Top 46%
×5stories
+106ft-86ft

Overall

12268

Males

9131

M18-39

9131

20K→Half

12.4 - 13.1 mi

Top 61%
×2stories
+19ft-37ft

Overall

16129

Males

10714

M18-39

10714

Half→25K

13.1 - 15.5 mi

Top 44%
×4stories
+66ft-88ft

Overall

11622

Males

8757

M18-39

8757

25K→30K

15.5 - 18.6 mi

Top 42%
×9stories
+181ft-148ft

Overall

11218

Males

8456

M18-39

8456

30K→20M

18.6 - 20.0 mi

Top 37%
×5stories
+64ft-50ft

Overall

9963

Males

7745

M18-39

7745

20M→21M

20.0 - 21.0 mi

Top 37%
×8stories
+106ft-24ft

Overall

9955

Males

7584

M18-39

7584

21M→35K

21.0 - 21.8 mi

Top 44%
×7stories
+17ft-86ft

Overall

11739

Males

8439

M18-39

8439

35K→23M

21.8 - 23.0 mi

Top 41%
×5stories
+23ft-63ft

Overall

10878

Males

7903

M18-39

7903

23M→24M

23.0 - 24.0 mi

Top 40%
×6stories
+12ft-82ft

Overall

10634

Males

7730

M18-39

7730

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

10113

Males

7394

M18-39

7394

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

9526

Males

7052

M18-39

7052

25.2M→Finish

25.2 - 26.2 mi

Top 44%
×2stories
+22ft-21ft

Overall

11597

Males

8090

M18-39

8090

Passing Analysis

Category:
Athletes Passed
1269
Passed By
3459
Net Change
-2191
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8842
5K → 10K181648-1631#8842#10473
10K → 15K59547-488#10473#10961
15K → 20K80377-297#10961#11258
20K → Half3280-277#11258#11535
Half → 25K14199+42#11535#11493
25K → 30K211150+61#11493#11432
30K → 20M17825+153#11432#11279
20M → 21M14634+112#11279#11167
21M → 35K3656-20#11167#11187
35K → 23M9864+34#11187#11153
23M → 24M8863+25#11153#11128
24M → 40K9924+75#11128#11053
40K → 25.2M479+38#11053#11015
25.2M → Finish6583-18#11015#11033
TOTALS12693459-2191
📊

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