Ongoing contests
| Contest | Users | |
|---|---|---|
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Waterloo 2026 Fall Local Unofficial Mirror
Ends in 1 day 10:33:37
Sep 28, 2026, 0:00 -
Oct 11, 2026, 23:59
03:00 window |
39 |
Upcoming contests
There are no scheduled contests at this time.Past contests
| Contest | Users | |
|---|---|---|
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Back to School '26
Sep 9, 2026, 0:00 -
Sep 16, 2026, 0:00
03:00 window |
154 | |
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2026 International Olympiad in Informatics Day 1 (Mirror)
Aug 22, 2026, 21:30 -
Sep 5, 2026, 0:00
05:00 window |
36 | |
|
2026 International Olympiad in Informatics Day 2 (Mirror)
Aug 22, 2026, 21:30 -
Sep 5, 2026, 0:00
05:00 window |
12 | |
|
2026 Canadian Computing Olympiad - Day 1 Mirror
May 30, 2026, 0:00 -
Jun 14, 2026, 23:59
04:00 window |
77 | |
|
2026 Canadian Computing Olympiad - Day 2 Mirror
May 30, 2026, 0:00 -
Jun 14, 2026, 23:59
04:00 window |
20 | |
|
Bruce's CCO Training Contest 8
May 16, 2026, 12:15 -
May 24, 2026, 19:00
04:00 window |
11 | |
|
Bruce's CIW Training Contest 8
May 16, 2026, 12:15 -
May 22, 2026, 18:30
04:00 window |
12 | |
|
Greater Toronto Programming Competition Individual Round (Mirror)
May 9, 2026, 12:00 -
May 13, 2026, 12:00
01:30 window |
24 | |
|
Bruce's CCO Training Contest 7
May 9, 2026, 8:00 -
May 17, 2026, 19:00
04:00 window |
15 | |
|
Bruce's CIW Training Contest 7
May 9, 2026, 8:00 -
May 15, 2026, 18:30
04:00 window |
12 | |
|
Bruce's CCO Training Contest 6
May 2, 2026, 6:00 -
May 10, 2026, 19:00
04:00 window |
21 | |
|
Bruce's CIW Training Contest 6
May 2, 2026, 6:00 -
May 8, 2026, 18:30
04:00 window |
12 | |
|
Bruce's CCO Training Contest 5
Apr 25, 2026, 12:00 -
May 3, 2026, 19:00
04:00 window |
20 | |
|
Bruce's CIW Training Contest 5
Apr 25, 2026, 12:00 -
May 1, 2026, 18:30
04:00 window |
12 | |
|
Bruce's CCO Training Contest 4
Apr 18, 2026, 12:00 -
Apr 26, 2026, 19:00
04:00 window |
26 | |
|
Bruce's CIW Training Contest 4
Apr 18, 2026, 12:00 -
Apr 24, 2026, 18:30
04:00 window |
11 | |
|
Bruce's CCO Training Contest 3
Apr 11, 2026, 12:00 -
Apr 19, 2026, 19:00
04:00 window |
28 | |
|
Bruce's CIW Training Contest 3
Apr 11, 2026, 12:00 -
Apr 17, 2026, 18:30
04:00 window |
26 | |
|
Bruce's CCO Training Contest 2
Apr 4, 2026, 13:00 -
Apr 12, 2026, 19:00
04:00 window |
39 | |
|
Bruce's CIW Training Contest 2
Apr 4, 2026, 13:00 -
Apr 10, 2026, 18:30
04:00 window |
20 |