Upcoming contests
There are no scheduled contests at this time.Past contests
| Contest | Users | |
|---|---|---|
|
Waterloo 2025 Fall Local Unofficial Mirror
Oct 6, 2025, 12:00 -
Oct 19, 2025, 23:59
03:00 window |
47 | |
|
2025 International Olympiad in Informatics Day 2 (Mirror)
Aug 9, 2025, 12:00 -
Aug 31, 2025, 0:00
05:00 window |
39 | |
|
2025 International Olympiad in Informatics Day 1 (Mirror)
Aug 2, 2025, 13:00 -
Aug 26, 2025, 0:00
05:00 window |
111 | |
|
2025 Canadian Computing Olympiad - Day 1 Mirror
May 31, 2025, 14:30 -
Jun 14, 2025, 0:00
04:00 window |
77 | |
|
2025 Canadian Computing Olympiad - Day 2 Mirror
May 31, 2025, 14:30 -
Jun 14, 2025, 0:00
04:00 window |
16 | |
|
2025 Canadian Informatics Workshop - Day 1 Mirror
May 31, 2025, 14:30 -
Jun 14, 2025, 0:00
04:00 window |
29 | |
|
2025 Canadian Informatics Workshop - Day 2 Mirror
May 31, 2025, 14:30 -
Jun 14, 2025, 0:00
04:00 window |
11 | |
|
OTHS Coding Competition 4
May 22, 2025, 15:00 -
May 30, 2025, 0:00
01:30 window |
92 | |
|
Bruce's CCO Training Contest 7
May 22, 2025, 0:00 -
May 25, 2025, 19:00
04:00 window |
32 | |
|
Bruce's CCO Training Contest 6
May 15, 2025, 0:00 -
May 18, 2025, 19:00
04:00 window |
42 | |
|
Bruce's CCO Training Contest 5
May 8, 2025, 0:00 -
May 11, 2025, 19:00
04:00 window |
42 | |
|
Bruce's CCO Training Contest 4
May 1, 2025, 0:00 -
May 4, 2025, 19:00
04:00 window |
38 | |
|
Bruce's CCO Training Contest 3
Apr 24, 2025, 0:00 -
Apr 27, 2025, 19:00
04:00 window |
42 | |
|
Bruce's CCO Training Contest 2
Apr 17, 2025, 0:00 -
Apr 20, 2025, 19:00
04:00 window |
44 | |
|
Bruce's CCO Training Contest 1
Apr 10, 2025, 0:00 -
Apr 13, 2025, 19:00
04:00 window |
61 | |
|
April Fools' Day Contest 2
Apr 1, 2025, 0:00
7 days long |
242 | |
|
Arcadia Computing Contest 2
Mar 19, 2025, 18:15 -
Mar 27, 2025, 0:00
02:00 window |
217 | |
|
2025 Canadian Computing Competition Junior Division Mirror
Mar 14, 2025, 22:30 -
Mar 29, 2025, 0:00
03:00 window |
98 | |
|
2025 Canadian Computing Competition Senior Division Mirror
Feb 25, 2025, 23:40 -
Mar 10, 2025, 0:00
03:00 window |
137 | |
|
Dilhan's Computing Contest 1
Feb 18, 2025, 0:00 -
Feb 25, 2025, 0:00
03:00 window |
344 |