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BOSTON MARATHON 2023

Alex Marchek

Bib: 452•M

SC

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 1%
Gender (Male)
#0 / 15176
Top 2%
Division (M18-39)
#0 / 5285
Top 6%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
17:57
Rank: #365
Start → 5K
17:57 | 5:47/mi
10K· 6.21 mi
35:37
Rank: #335 (+30)
5K → 10K
17:40 | 5:41/mi
15K· 9.32 mi
53:27
Rank: #323 (+12)
10K → 15K
17:50 | 5:44/mi
20K· 12.43 mi
1:11:42
Rank: #323
15K → 20K
18:15 | 5:52/mi
Half· 13.11 mi
1:15:31
Rank: #319 (+4)
20K → Half
3:49 | 5:36/mi
25K· 15.53 mi
1:29:51
Rank: #326 (-7)
Half → 25K
14:20 | 5:55/mi
30K· 18.64 mi
1:48:48
Rank: #344 (-18)
25K → 30K
18:57 | 6:06/mi
20M
1:57:03
Rank: #341 (+3)
30K → 20M
8:15 | 6:04/mi
21M
2:03:34
Rank: #349 (-8)
20M → 21M
6:31 | 6:31/mi
35K· 21.75 mi
2:08:02
Rank: #353 (-4)
21M → 35K
4:28 | 5:58/mi
23M
2:15:50
Rank: #357 (-4)
35K → 23M
7:48 | 6:14/mi
24M
2:21:55
Rank: #362 (-5)
23M → 24M
6:05 | 6:05/mi
40K· 24.85 mi
2:27:14
Rank: #362
24M → 40K
5:19 | 6:13/mi
25.2M
2:29:35
Rank: #367 (-5)
40K → 25.2M
2:21 | 6:49/mi
Finish· 26.22 mi
2:35:49
Rank: #374 (-7)
25.2M → Finish
6:14 | 6:07/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:15:31
Pace5:46 /mi
2nd Half
Distance13.11 mi
Time1:20:18
Pace6:08 /mi
📊Positive Split: 6.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:0717:575:4717:57
5:47
-
10K
6.21 mi10:35:4735:375:4417:40
5:41
-0:06
15K
9.32 mi10:53:3753:275:4417:50
5:44
+0:03
20K
12.43 mi11:11:521:11:425:4618:15
5:52
+0:08
Half
13.11 mi11:15:411:15:315:463:49
5:36
-0:16
25K
15.53 mi11:30:011:29:515:4714:20
5:55
+0:19
30K
18.64 mi11:48:581:48:485:5018:57
6:06
+0:11
20M
20.00 mi11:57:131:57:035:518:15
6:04
-0:02
21M
21.00 mi12:03:442:03:345:536:31
6:31
+0:27
35K
21.75 mi12:08:122:08:025:534:28
5:58
-0:33
23M
23.00 mi12:16:002:15:505:547:48
6:14
+0:16
24M
24.00 mi12:22:052:21:555:556:05
6:05
-0:09
40K
24.85 mi12:27:242:27:145:555:19
6:13
+0:08
25.2M
25.20 mi12:29:452:29:355:562:21
6:49
+0:36
Finish
26.22 mi12:35:592:35:495:576:14
6:07
-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

5:36 /mi

Average Pace

5:57 /mi

Slowest Pace

6:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:15:31

48% of race

Time at Steady Pace

1:03:38

41% of race

Time at Slower Pace

16:40

11% of race

Average Pace: 5:57 /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 mi10:18:0717:575:4717:57
5:47
#365
10K
6.21 mi10:35:4735:375:4417:40
5:41
#335
15K
9.32 mi10:53:3753:275:4417:50
5:44
#323
20K
12.43 mi11:11:521:11:425:4618:15
5:52
#323
Half
13.11 mi11:15:411:15:315:463:49
5:36
#319
25K
15.53 mi11:30:011:29:515:4714:20
5:55
#326
30K
18.64 mi11:48:581:48:485:5018:57
6:06
#344
20M
20.00 mi11:57:131:57:035:518:15
6:04
#341
21M
21.00 mi12:03:442:03:345:536:31
6:31
#349
35K
21.75 mi12:08:122:08:025:534:28
5:58
#353
23M
23.00 mi12:16:002:15:505:547:48
6:14
#357
24M
24.00 mi12:22:052:21:555:556:05
6:05
#362
40K
24.85 mi12:27:242:27:145:555:19
6:13
#362
25.2M
25.20 mi12:29:452:29:355:562:21
6:49
#367
Finish
26.22 mi12:35:592:35:495:576:14
6:07
#374
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi365331331307(Top 1%)274(Top 2%)274(Top 5%)
10K6.21 mi3.10 mi335+30301+30301+30288(Top 1%)258(Top 2%)258(Top 5%)
15K9.32 mi3.11 mi323+12290+11290+11307(Top 1%)274(Top 2%)274(Top 5%)
20K12.43 mi3.11 mi323291-1291-1393(Top 1%)360(Top 2%)360(Top 7%)
Half13.11 mi0.68 mi319+4287+4287+4192(Top 0.7%)170(Top 1%)170(Top 3%)
25K15.53 mi2.42 mi326-7294-7294-7402(Top 2%)372(Top 2%)372(Top 7%)
30K18.64 mi3.11 mi344-18312-18312-18501(Top 2%)469(Top 3%)469(Top 9%)
20M20.00 mi1.36 mi341+3309+3309+3439(Top 2%)405(Top 3%)405(Top 8%)
21M21.00 mi1.00 mi349-8317-8317-8667(Top 3%)628(Top 4%)628(Top 12%)
35K21.75 mi0.75 mi353-4322-5322-5608(Top 2%)570(Top 4%)570(Top 11%)
23M23.00 mi1.25 mi357-4326-4326-4662(Top 2%)624(Top 4%)624(Top 12%)
24M24.00 mi1.00 mi362-5330-4330-4708(Top 3%)670(Top 4%)670(Top 13%)
40K24.85 mi0.85 mi362330330671(Top 3%)634(Top 4%)634(Top 12%)
25.2M25.20 mi0.35 mi367-5335-5335-51138(Top 4%)1077(Top 7%)1077(Top 20%)
Finish26.22 mi1.02 mi374-7342-7342-71015(Top 4%)964(Top 6%)964(Top 18%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 1%
×21stories
+97ft-345ft

Overall

307

Males

274

M18-39

274

5K→10K

3.1 - 6.2 mi

Top 1%
×5stories
+79ft-138ft

Overall

288

Males

258

M18-39

258

10K→15K

6.2 - 9.3 mi

Top 1%
×3stories
+67ft-78ft

Overall

307

Males

274

M18-39

274

15K→20K

9.3 - 12.4 mi

Top 1%
×5stories
+106ft-86ft

Overall

393

Males

360

M18-39

360

20K→Half

12.4 - 13.1 mi

Top 0.7%
×2stories
+19ft-37ft

Overall

192

Males

170

M18-39

170

Half→25K

13.1 - 15.5 mi

Top 2%
×4stories
+66ft-88ft

Overall

402

Males

372

M18-39

372

25K→30K

15.5 - 18.6 mi

Top 2%
×9stories
+181ft-148ft

Overall

501

Males

469

M18-39

469

30K→20M

18.6 - 20.0 mi

Top 2%
×5stories
+64ft-50ft

Overall

439

Males

405

M18-39

405

20M→21M

20.0 - 21.0 mi

Top 3%
×8stories
+106ft-24ft

Overall

667

Males

628

M18-39

628

21M→35K

21.0 - 21.8 mi

Top 2%
×7stories
+17ft-86ft

Overall

608

Males

570

M18-39

570

35K→23M

21.8 - 23.0 mi

Top 2%
×5stories
+23ft-63ft

Overall

662

Males

624

M18-39

624

23M→24M

23.0 - 24.0 mi

Top 3%
×6stories
+12ft-82ft

Overall

708

Males

670

M18-39

670

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

671

Males

634

M18-39

634

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

1138

Males

1077

M18-39

1077

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2stories
+22ft-21ft

Overall

1015

Males

964

M18-39

964

Passing Analysis

Category:
Athletes Passed
120
Passed By
129
Net Change
-9
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#365
5K → 10K344+30#365#335
10K → 15K153+12#335#323
15K → 20K880#323#323
20K → Half51+4#323#319
Half → 25K512-7#319#326
25K → 30K927-18#326#344
30K → 20M74+3#344#341
20M → 21M513-8#341#349
21M → 35K37-4#349#353
35K → 23M913-4#353#357
23M → 24M510-5#357#362
24M → 40K880#362#362
40K → 25.2M27-5#362#367
25.2M → Finish512-7#367#374
TOTALS120129-9
📊

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