Current or upcoming contests
 
 
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Codeforces Round 1134 (Div. 4) MikeMirzayanov
 Nov/12/2026 17:35 02:15 Before start 3 days Register »  x9312
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Codeforces Round (Div. 2) AksLolCoding
 Nov/15/2026 17:35 02:00 Before start 6 days Before registration 01:44:07
Codeforces Round (Div. 1) Nov/21/2026 17:35 02:00 Before start 12 days Before registration 7 days
Codeforces Round (Div. 2) Nov/21/2026 17:35 02:00 Before start 12 days Before registration 7 days
Kotlin Heroes: Practice 15 Dec/01/2026 17:30 7:00:00 Before start 3 weeks Before registration 3 weeks
Kotlin Heroes: Episode 15 BledDest
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adedalic
awoo
 Dec/08/2026 17:35 02:30 Before start 4 weeks Before registration 2 weeks
 
 
 
 
Past contests
 
 
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Codeforces Beta Round 23
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Zhukov_Dmitry
 Jul/09/2010 19:00
Jul/09/2010 19:00 		02:00  x765
Codeforces Beta Round 22 (Div. 2 Only)
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RAD
 Jun/29/2010 19:00
Jun/29/2010 19:00 		02:00  x636
Codeforces Alpha Round 21 (Codeforces format)
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MikeMirzayanov
 Jun/28/2010 17:05
Jun/28/2010 17:05 		02:00  x313
Codeforces Beta Round 19
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NALP
RAD
 Jun/24/2010 19:00
Jun/24/2010 19:00 		02:00  x931
Codeforces Alpha Round 20 (Codeforces format)
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MikeMirzayanov
dlevshunov
 Jun/18/2010 19:30
Jun/18/2010 19:30 		01:30  x60
Codeforces Beta Round 18 (Div. 2 Only)
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Edvard
MikeMirzayanov
RAD
 Jun/16/2010 19:00
Jun/16/2010 19:00 		02:00  x620
Codeforces Beta Round 17
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akirakaze
 Jun/10/2010 19:00
Jun/10/2010 19:00 		02:00  x865
Codeforces Beta Round 16 (Div. 2 Only)
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Edvard
RAD
 Jun/03/2010 17:00
Jun/03/2010 17:00 		02:00  x615
Codeforces Beta Round 15
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Shtrix
 May/29/2010 19:00
May/29/2010 19:00 		02:15  x902
Codeforces Beta Round 14 (Div. 2)
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Edvard
Igor_Kudryashov
MikeMirzayanov
Nerevar
 May/19/2010 19:30
May/19/2010 19:30 		02:00  x645
Codeforces Beta Round 13
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KADR
 May/06/2010 18:00
May/06/2010 18:00 		02:00  x895
Codeforces Beta Round 12 (Div 2 Only)
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Igor_Kudryashov
Nerevar
 Apr/29/2010 15:00
Apr/29/2010 15:00 		02:00  x477
Codeforces Beta Round 11
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MikeMirzayanov
meret
 Apr/26/2010 19:00
Apr/26/2010 19:00 		02:00  x749
Codeforces Beta Round 10
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Nerevar
 Apr/15/2010 19:45
Apr/15/2010 19:45 		02:00  x775
Codeforces Beta Round 9 (Div. 2 Only)
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Alex_KPR
 Apr/11/2010 15:00
Apr/11/2010 15:00 		02:00  x439
Codeforces Beta Round 8
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Fefer_Ivan
Gerald
Polichka
 Apr/08/2010 19:45
Apr/08/2010 19:45 		02:00  x746
Codeforces Beta Round 7
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MikeMirzayanov
RAD
e-maxx
 Apr/01/2010 19:45
Apr/01/2010 19:45 		02:00  x722
Codeforces Beta Round 6 (Div. 2 Only)
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MikeMirzayanov
Nerevar
 Mar/27/2010 10:00
Mar/27/2010 10:00 		02:00  x430
Codeforces Beta Round 5
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DmitryKlenov
MikeMirzayanov
 Mar/20/2010 19:00
Mar/20/2010 19:00 		02:00  x551
Codeforces Beta Round 4 (Div. 2 Only)
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Igor_Kudryashov
MikeMirzayanov
 Mar/12/2010 15:00
Mar/12/2010 15:00 		02:00  x404
Codeforces Beta Round 3
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MikeMirzayanov
 Mar/07/2010 15:00
Mar/07/2010 15:00 		02:00  x617
Codeforces Beta Round 2
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MikeMirzayanov
 Feb/25/2010 20:00
Feb/25/2010 20:00 		02:00  x269
Codeforces Beta Round 1
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MikeMirzayanov
 Feb/19/2010 15:00
Feb/19/2010 15:00 		02:00  x175