Robot Wars (U.S.)
	1994	1995	1996	1997
Heavy	Ramfire 2000 Michael Sorenson	The Master Mark Setrakian Blendo * James Hyneman	Biohazard Carlo Bertocchini	Biohazard Carlo Bertocchini
Middle	X1 Mike Winter	La Machine Greg Munson	Agamemnon Dan Danknick	Vicious-1 Mike Regan
Light	The Julie-Bot Will Wright	Test Toaster 1 Jeff Bowden	Atiller the Hun Jim Sellers	Defiant James Underwood
Feather (superlight)	No featherweight class	KMM Rik Winter	Wedge of Doom Tony Buchignani	Wedge of Doom Tony Buchignani
* After ripping chunks off of an opponent and sending them flying into the spectator area, Blendo was judged too dangerous to compete. Blendo was removed from the competition and declared co-champion.

Robot Wars (U.K.)
	1997 1st Wars	1998 2nd Wars	1999 3rd Wars	2000 4th Wars	2001 5th Wars	2002 6th Wars	2003 7th Wars
Heavyweight 100 Kilos *	Roadblock Chris Kinsey	Panic Attack Kim Davies	Chaos 2 George Francis	Chaos 2 George Francis	Razer Ian Lewis	Tornado Andrew Marchant	Typhoon 2 Gary Cairns
See also the results for the Robot Wars World Championships: Robot Wars Technical Sheets (2002): * Maximum weight increased to 100 kilos at the 5th wars. Check rules for weights in earlier wars.

BattleBots
	1999 Long Beach	1999 P.P.V.	2000 Season 1.0	2000 Season 2.0	2001 Season 3.0	2001 Season 4.0	2002 Season 5.0
Superheavy 340 lbs. *	No superheavy class	Minion Christian Carlberg	Minion Christian Carlberg	Diesector Donald Hutson	Vladiator Gage Cauchois	Toro Alex Rose	Diesector Donald Hutson
Heavyweight 220 lbs. *	Biohazard Carlo Bertocchini	Vlad the Impaler Gage Cauchois	Vlad the Impaler Gage Cauchois	Biohazard Carlo Bertocchini	Son of Whyachi Terry Ewert	Biohazard Carlo Bertocchini	Biohazard Carlo Bertocchini
Middleweight 120 lbs. *	Son of Smashy Derek Young	No middleweight class	Hazard Tony Buchignani	Spaz Mike Regan	Hazard Tony Buchignani	Hazard Tony Buchignani	T-Minus Alex Rose
Lightweight 60 lbs. *	Ziggo Jonathan Ridder	No lightweight class	Backlash Jim Smentowski	Ziggo Jonathan Ridder	Dr. Inferno Jr. Jason Bardis	Ziggo Jonathan Ridder	Dr. Inferno Jr. Jason Bardis
* Current weight limit. Check rules for weight limits in earlier competitions.

Robotica
	2001 Season 1	2001 Season 2	2001 Season 3
Heavyweight 210 lbs.	Run Amok Mark Joerger	Flexi Flyer Mike Konshak	Panzer Mk.3 Todd Mendenhall

Robot Wars Extreme Warriors
	2001 - London	2002 - London
Heavyweight 220 lbs.	Panzer Mk.2 Todd Mendenhall	Panzer Mk.4 Todd Mendenhall

Robot Fighting League Championships
	2004 - San Francisco	2005 - San Francisco	2006 - Minneapolis
Superheavy 340 lbs.	Shovelhead Doug Groves	Shovelhead Doug Groves	Psychotic Reaction Mike Kline
Heavyweight 220 lbs.	SJ Scott Kincaid	Sewer Snake Matt Maxham	Shrederator Brian Nave
Middleweight 120 lbs.	Max Wedge Mike Phillips	Devil's Plunger Matt Maxham	Ice Cube Michael Maudlin
Lightweight 60 lbs.	West Side Glory Andy Sauro	Joe 2.0 Andrew Peterson	Son of Whacky Compass Chris Baron
Featherweight 30 lbs.	Totally Offensive Alex/James Woodhead	Totally Offensive Alex/James Woodhead	Xhilirating impaX Pete Smith
Hobbyweight 12 lbs.	Target Practice Don Hebert	Li'l Shocker James Arluck	CheepShot 3.0 Pete Smith
Beetleweight 3 lbs.	Wallop Jim Smentowski	Buster Blade Jon Durand	Itsa? Eric Mueller
Antweight 1 lb.	Pneu Jimmy Andy Sauro	MC Pee Pants Andy Sauro	UnderWhere?! Eric Mueller
Fairyweight 150 grams	Quark 2 Ted Zeiger	VD Andy Sauro	--- ---