PEG:Event calendar 2009/2010

October
21st: DWITE round 1
23rd-26th: USACO October 2009 Qualification Round

November
6th-9th: USACO Elite 2009 November Competition
25th: Canadian Open Mathematics Challenge
25th: DWITE round 2

December
4th-7th: USACO Elite 2009 December Competition
16th: DWITE round 3
18th: ACSL contest 1

January
8th-11th: USACO Elite 2010 January Competition
20th: DWITE round 4

February
4th: NACLO Open Competition (first round)
5th-8th: USACO Elite 2010 February Competition
12th: ACSL contest 2
23rd: CCC stage 1. Requires proctoring. Requires 3 continuous hours, but can be done any time during the day (depending on availability of teacher supervisors and computer labs, I suppose)
25th: Pascal, Cayley, and Fermat Contests

March
10th: NACLO Invitational (second round)
12th: ACSL contest 3
12th-15th: USACO Elite 2010 March Competition
24th: DWITE round 5
27th: ECOO Boardwide Contest

April
7th: Euclid Contest
9th: Fryer, Galois, and Hypatia Contests
9th: ACSL contest 4
14th: DWITE round 6
23rd-26th: USACO Elite 2010 U.S. Open Competition
24th: ECOO Regional Contest

May
probably early to mid-May: CCC stage 2 at University of Waterloo. Lasts a few days. Requires little or no teacher involvement.
1st: ECOO Final Contest
19th: DWITE round 7
29th: ACSL finals

June
23rd: DWITE round 8

July

August
14th-21st: 22nd International Olympiad in Informatics