Contests

Upcoming contests

There are no scheduled contests at this time.

Past contests

Contest	Users ▾
The Old New Thing rated seasonal Feb 23, 2015, 0:00 7 days long	53
2022 Central European Olympiad in Informatics Day 2 Mirrormirror Jul 28, 2022, 12:40 - Aug 4, 2022, 0:00 05:00 window	52
VMSS 7 Week Challenge Week 3 Jan 22, 2015, 15:00 7 days long	52
Valentine's Day 2015externalseasonal Feb 14, 2015, 19:00 - Feb 14, 2015, 22:00 03:00 window	51
GCC '23 #1external Apr 1, 2023, 0:00 - Apr 3, 2023, 0:00 03:00 window	50
2023 International Olympiad in Informatics Day 1 (Mirror)mirror Aug 31, 2023, 22:15 - Sep 9, 2023, 0:00 05:00 window	49
Mackenzie Easter Competition 2016external Mar 25, 2016, 12:00 - Mar 29, 2016, 0:00 03:00 window	49
Summer Contest #11 Aug 10, 2020, 0:00 - Aug 17, 2020, 0:00 05:00 window	49
Waterloo 2023 Winter Local Unofficial Mirrormirror Feb 2, 2023, 15:30 - Feb 15, 2023, 0:00 03:00 window	49
WOSS Dual Olympiad 2022 Team Round Dec 20, 2022, 15:00 - Dec 24, 2022, 0:00 01:00 window	49
NOIP '18 Day 1 Unofficial Mirrormirror Nov 5, 2021, 0:00 - Nov 11, 2021, 23:59 03:00 window	48
TOP 2016 - Practice Sessionexternal Mar 15, 2016, 11:00 02:00 long	48
2017 Canadian Computing Olympiad Day 2 Mirrormirror May 13, 2017, 0:00 - May 15, 2017, 12:00 04:00 window	47
DMPG '15 - Gold Division (Open Unofficial Mirror) rated mirror May 28, 2015, 11:00 - May 28, 2015, 21:10 03:00 window	47
ICHB Selection Contest '17 (Mirror)externalmirror Nov 12, 2017, 9:00 - Nov 13, 2017, 9:00 04:00 window	47
Mock CCC '18 Contest 2 Juniorexternal Feb 1, 2018, 0:00 - Feb 4, 2018, 0:00 03:00 window	47
CCO Mashup May 11, 2015, 9:00 2 days 14:59 long	46
Cheerio Contest 1 Junior Division Jun 9, 2022, 15:30 - Jun 10, 2022, 0:00 02:30 window	46
DMPG '16 - Silver Division May 18, 2016, 10:25 03:05 long	46
Olympiads School CCO Training Contest 2external Apr 5, 2024, 0:00 - Apr 7, 2024, 19:00 04:00 window	44