| 75 | Codeforces Beta Round 67 (Div. 2) | Apr 13, 2011, 03:00 PM | 2h | Finished | |
| 76 | All-Ukrainian School Olympiad in Informatics | Apr 12, 2011, 12:00 PM | 5h | Finished | |
| 73 | Codeforces Beta Round 66 | Apr 10, 2011, 08:00 AM | 2h 30m | Finished | |
| 71 | Codeforces Beta Round 65 (Div. 2) | Mar 29, 2011, 03:00 PM | 2h | Finished | |
| 70 | Codeforces Beta Round 64 | Mar 26, 2011, 04:00 PM | 2h | Finished | |
| 69 | Codeforces Beta Round 63 (Div. 2) | Mar 22, 2011, 04:00 PM | 2h | Finished | |
| 72 | Unknown Language Round 2 | Mar 20, 2011, 04:10 PM | 3h | Finished | |
| 68 | Codeforces Beta Round 62 | Mar 18, 2011, 04:00 PM | 2h | Finished | |
| 67 | Manthan 2011 | Mar 13, 2011, 04:30 PM | 3h | Finished | |
| 66 | Codeforces Beta Round 61 (Div. 2) | Mar 07, 2011, 04:00 PM | 2h | Finished | |
| 65 | Codeforces Beta Round 60 | Mar 05, 2011, 04:00 PM | 2h | Finished | |
| 63 | Codeforces Beta Round 59 (Div. 2) | Feb 28, 2011, 04:00 PM | 2h | Finished | |
| 62 | Codeforces Beta Round 58 | Feb 25, 2011, 04:00 PM | 2h | Finished | |
| 61 | Codeforces Beta Round 57 (Div. 2) | Feb 22, 2011, 04:00 PM | 2h | Finished | |
| 64 | Unknown Language Round 1 | Feb 21, 2011, 04:00 PM | 2h 30m | Finished | |
| 60 | Codeforces Beta Round 56 | Feb 19, 2011, 04:00 PM | 2h | Finished | |
| 59 | Codeforces Beta Round 55 (Div. 2) | Feb 11, 2011, 04:00 PM | 2h | Finished | |
| 58 | Codeforces Beta Round 54 (Div. 2) | Jan 31, 2011, 04:00 PM | 2h | Finished | |
| 57 | Codeforces Beta Round 53 | Jan 25, 2011, 04:00 PM | 2h | Finished | |
| 56 | Codeforces Beta Round 52 (Div. 2) | Jan 21, 2011, 04:10 PM | 2h | Finished | |
| 55 | Codeforces Beta Round 51 | Jan 14, 2011, 08:00 AM | 2h | Finished | |
| 54 | Codeforces Beta Round 50 | Jan 11, 2011, 08:15 AM | 2h | Finished | |
| 53 | Codeforces Beta Round 49 (Div. 2) | Jan 06, 2011, 04:00 PM | 2h | Finished | |
| 52 | Codeforces Testing Round 1 | Jan 04, 2011, 05:00 PM | 1h | Finished | |
| 51 | Codeforces Beta Round 48 | Dec 28, 2010, 04:00 PM | 2h 30m | Finished | |
| 50 | Codeforces Beta Round 47 | Dec 20, 2010, 04:20 PM | 2h | Finished | |
| 49 | Codeforces Beta Round 46 (Div. 2) | Dec 17, 2010, 04:00 PM | 2h | Finished | |
| 48 | School Personal Contest #3 (Winter Computer School 2010/11) - Codeforces Beta Round 45 (ACM-ICPC Rules) | Dec 12, 2010, 08:00 AM | 3h | Finished | |
| 47 | Codeforces Beta Round 44 (Div. 2) | Dec 07, 2010, 04:00 PM | 2h | Finished | |
| 46 | School Personal Contest #2 (Winter Computer School 2010/11) - Codeforces Beta Round 43 (ACM-ICPC Rules) | Dec 05, 2010, 08:00 AM | 3h | Finished | |
| 43 | Codeforces Beta Round 42 (Div. 2) | Nov 29, 2010, 04:00 PM | 2h | Finished | |
| 42 | Codeforces Beta Round 41 | Nov 18, 2010, 04:00 PM | 2h | Finished | |
| 45 | School Team Contest 3 (Winter Computer School 2010/11) | Nov 13, 2010, 11:00 AM | 5h | Finished | |
| 41 | Codeforces Beta Round 40 (Div. 2) | Nov 08, 2010, 04:00 PM | 2h | Finished | |
| 44 | School Team Contest 2 (Winter Computer School 2010/11) | Nov 06, 2010, 11:00 AM | 5h | Finished | |
| 40 | Codeforces Beta Round 39 | Nov 05, 2010, 04:00 PM | 2h | Finished | |
| 38 | School Personal Contest #1 (Winter Computer School 2010/11) - Codeforces Beta Round 38 (ACM-ICPC Rules) | Oct 30, 2010, 12:00 PM | 4h | Finished | |
| 37 | Codeforces Beta Round 37 | Oct 25, 2010, 03:00 PM | 2h | Finished | |
| 39 | School Team Contest 1 (Winter Computer School 2010/11) | Oct 24, 2010, 07:10 AM | 5h | Finished | |
| 36 | Codeforces Beta Round 36 | Oct 19, 2010, 10:00 AM | 2h | Finished | |
| 35 | Codeforces Beta Round 35 (Div. 2) | Oct 19, 2010, 07:00 AM | 2h | Finished | |
| 34 | Codeforces Beta Round 34 (Div. 2) | Oct 11, 2010, 01:00 PM | 2h | Finished | |
| 33 | Codeforces Beta Round 33 (Codeforces format) | Oct 07, 2010, 03:00 PM | 2h | Finished | |
| 32 | Codeforces Beta Round 32 (Div. 2, Codeforces format) | Oct 02, 2010, 07:00 AM | 2h | Finished | |
| 31 | Codeforces Beta Round 31 (Div. 2, Codeforces format) | Sep 27, 2010, 03:00 PM | 2h | Finished | |
| 30 | Codeforces Beta Round 30 (Codeforces format) | Sep 24, 2010, 03:00 PM | 2h | Finished | |
| 29 | Codeforces Beta Round 29 (Div. 2, Codeforces format) | Sep 20, 2010, 03:00 PM | 2h | Finished | |
| 28 | Codeforces Beta Round 28 (Codeforces format) | Sep 17, 2010, 03:00 PM | 2h | Finished | |
| 27 | Codeforces Beta Round 27 (Codeforces format, Div. 2) | Sep 10, 2010, 03:00 PM | 2h | Finished | |
| 26 | Codeforces Beta Round 26 (Codeforces format) | Aug 16, 2010, 03:00 PM | 2h | Finished | |