Note: LoLPortal is no longer being actively updated as I've joined Riot Games to work on their esports web initiatives. See this blog post for more information.

Tournament Name	Participants	Winnings	Location	Date
LCS North America - Season 3 - Summer Split	8		Los Angeles, CA	Ongoing
LCS Europe - Season 3 - Summer Promotion	12		Cologne, Germany	Ongoing
HOT6iX Champions Summer 2013	16	$236,008	Seoul, South Korea	Ongoing
LCS Europe - Season 3 - Summer Split	8		Cologne, Germany	Ongoing
LPL - Summer 2013	8		China	Ongoing
Season 3 China Regional Finals	4		China	Ongoing
Season 3 Southeast Asia Regional Finals	6		Vietnam	Ongoing
Season 3 - World Championship	14		Los Angeles	Ongoing

Tournament Name	Participants	Winnings	Location	Date
< 1 2 3 4
SK Trophy Pro Invitational March	16	$1,330	Online	3/24/2012
HeartoWin Cup	16	$5,900	Krefeld, Germany	3/17/2012
Millenium King Of The Hill 4	2	$130	Online	3/11/2012
IEM Season VI - World Championship	12	$100,000	Hanover, Germany	3/10/2012
LoLPro.com Curse Invitational	8	$25,000	Online/San Francisco	2/25/2012
Cdiscount Cup 1	8	$1,310	Online	2/15/2012
Kings of Europe	8	$3,250	Online	1/31/2012
IEM Season VI - Global Challenge Kiev	8	$32,000	Kiev, Ukraine	1/22/2012
Millenium King Of The Hill 3	2	$130	Online	1/18/2012
World GameMaster Tournament 2012	4	$9,500	China	1/13/2012
Millenium King Of The Hill 2	2	$130	Online	1/12/2012
Millenium King Of The Hill 1	2	$130	Online	1/5/2012
2011 MLG Pro Circuit Providence	4	$30,000	Providence, Rhode Island	11/20/2011
Tencent Games Carnival 2011	8	$50,000	Shanghai, China	11/19/2011
2011 MLG Pro Circuit Providence Qualifiers	32		Online	11/8/2011
IEM Season VI - Global Challenge New York	8	$32,000	New York City	10/16/2011
IGN ProLeague Season 3	8	$20,000	Atlantic City, New Jersey	10/9/2011
IEM Season VI - Global Challenge Guangzhou	8	$32,000	Guangzhou, China	10/5/2011
2011 MLG Pro Circuit Raleigh	4	$20,000	Raleigh, North Carolina	8/27/2011
IEM Season VI - Global Challenge Cologne	8	$32,000	Cologne, Germany	8/21/2011