Sphere Online Judge (SPOJ)

Running contests

CODE	NAME	START	END
OI	Olympiad in Informatics	2008-12-01 00:00:00	2020-01-01 00:00:00
HSPLARCH	High School Programming League Problems Archive	2009-01-01 00:00:00	2020-01-01 00:00:00

Past contests

CODE	NAME	START	END
HSPL11	High School Programming League 2011/12	2011-08-28 12:00:00	2012-03-05 18:00:00
NWERC11	NWERC 2011 Semi-Live online contest	2011-11-27 10:30:00	2011-11-27 15:30:00
HSPL10	High School Programming League 2010/11	2010-09-16 12:00:00	2011-04-18 18:00:00
HSPL09	High School Programming League 2009/10	2009-09-05 12:00:00	2010-04-24 12:00:00
HSPL08	High School Programming League 2008/2009	2008-09-20 12:00:00	2009-06-06 12:00:00
MIT081	MIT Individual Contest 2008	2009-01-18 18:00:00	2009-01-18 23:00:00
ZFUN08	Open Contest 2008	2008-05-03 00:00:01	2008-05-20 00:00:01
MIT072	MIT 1st Team Contest 2007	2008-02-03 18:00:00	2008-02-03 23:00:00
OLYMCUP	Olympic Cup	2007-11-10 09:00:00	2007-11-10 21:00:00
MIT071	MIT Individual Contest 2007	2007-11-03 15:00:00	2007-11-03 20:00:00
NITTLOCL	NITT ACM ICPC Local Contest 2007	2007-10-14 12:00:00	2007-10-14 18:00:00
PT07	Play with Trees	2007-04-25 02:00:00	2007-04-30 02:00:00
ZFUN07	Open Contest 2007	2007-04-15 00:01:00	2007-04-27 00:01:00
ZFUN06	Open Contest 2006	2006-03-23 00:01:00	2006-04-15 00:01:00
ULM_05	University of Ulm Local Contest 2005	2005-07-02 09:00:00	2005-07-02 14:00:00
LIGA04	Programming League 2004/05	2004-10-09 00:00:00	2005-06-05 00:00:00

So far we have hosted 2150 contests (1551 completed, 592 currently running, 7 scheduled), of which 18 were official and 1774 were open to all participants. If you are interested in receiving contest hosting privileges for your SPOJ account, please drop us a line.