Random Format Series 4 was a fantasy tournament on the Robot Wars Wiki in which Robot Wars: The Fourth Wars was redrawn, with each heat having a completely different format and structure. These were based on various heat and side-competition formats used throughout all eras of Robot Wars.
The tournament began on 8th April 2020. There were no seeds. A Challenge Belt for Series 3 exclusive robots was held concurrent with each respective Heat Final.
Heats
Heat the First
- Main article: Forum:Random Format Series 4 - Heat the First
Series 10 Redemption bracket
Round 1
- The Creature vs Judge Shred 2 vs Behemoth: Behemoth won
- Inverterbrat vs Knightmare vs Kater Killer: Knightmare won
Redemption Round
- Inverterbrat vs The Creature: Inverterbrat won
- Kater Killer vs Judge Shred 2: Judge Shred 2 won
Semi-Finals
- Inverterbrat vs Behemoth: Behemoth won
- Knightmare vs Judge Shred 2: Knightmare won
Heat Final
- Knightmare vs Behemoth: Behemoth won
Heat the Second
- Main article: Forum:Random Format Series 4 - Heat the Second
Tag Team Terror
Round 1
- Suicidal Tendencies 2 & Eric vs Reactor & Ghetto-bot: Suicidal Tendencies 2 & Eric won
- MouseTrap & Banshee vs Tornado & Rambot: Tornado & Rambot won
- Diotoir & Oblivion 2 vs Killertron & Plunderbird 4: Killertron & Plunderbird 4 won
- Disc-O-Inferno & Atomic vs X-Terminator 2 & The Morgue: X-Terminator 2 & The Morgue won
Round 2
- The Morgue & X-Terminator 2 vs Suicidal Tendencies 2 & Eric: The Morgue & X-Terminator 2 won
- Killertron & Plunderbird 4 vs Tornado & Rambot: Tornado & Rambot won
Heat Final
- The Morgue & X-Terminator 2 vs Tornado & Rambot: The Morgue & X-Terminator 2 won
Heat the Third
- Main article: Forum:Random Format Series 4 - Heat the Third
Pinball Warrior
- Panic Attack: 255 points
- Mortis: 175 points
- Kronic the Wedgehog: 130 points
- Mazakari: 90 points
- Prizephita Mk2: 85 points
- Wheely Big Cheese: 85 points
- Millennium Bug: 20 points
Panic Attack won
Heat the Fourth
- Main article: Forum:Random Format Series 4 - Heat the Fourth
Annihilator
Competing Robots: Sir Chromalot, Terror-Bull, Cerberus, Reptirron, Hammer & Tong, Dreadnaut XP-1
- Sixth: Reptirron
- Fifth: Hammer & Tong
- Fourth: Sir Chromalot
- Third: Dreadnaut XP-1
- Second: Cerberus
- First: Terror-Bull
Heat the Fifth
- Main article: Forum:Random Format Series 4 - Heat the Fifth
10 Robot Rumble
- Gemini vs Humphrey vs The Mangulator vs Splinter vs Gravedigger vs Warhog vs Detonator vs Maverick vs Spikasaurus vs Bolt from the Blue: Spikasaurus won
Heat the Sixth
- Main article: Forum:Random Format Series 4 - Heat the Sixth
Series 6 4-way melee heat
Round 1
- Clawed Hopper vs Centurion vs Firestorm 2 vs Attila the Drum: Firestorm 2 and Attila the Drum won
- Saw Point vs Pussycat vs Little Fly vs Robochicken: Saw Point and Pussycat won
Round 2
- Saw Point vs Attila the Drum: Attila the Drum won
- Pussycat vs Firestorm 2: Pussycat won
Heat Final
- Pussycat vs Attila the Drum: Pussycat won
Heat the Seventh
- Main article: Forum:Random Format Series 4 - Heat the Seventh
Series 4 3-way melee heat
Round 1
- Dominator 2 vs The Steel Avenger vs Sump Thing: Sump Thing eliminated
- Scar vs Iron-Awe vs Stinger: Iron-Awe eliminated
Round 2
- Stinger vs The Steel Avenger: Stinger won
- Dominator 2 vs Scar: Dominator 2 won
Heat Final
- Dominator 2 vs Stinger: Dominator 2 won
Heat the Eighth
- Main article: Forum:Random Format Series 4 - Heat the Eighth
Dutch Wars Losers Melee heat
Round 1
- Velocirippa vs Overkill GTI: Overkill GTI won
- Small Torque vs Aggrobot 2: Aggrobot 2 won
- Steg 2 vs The Predator: Steg 2 won
Losers Melee
- Velocirippa vs Small Torque vs The Predator: Small Torque won
Round 2
- Overkill GTI vs Small Torque: Overkill GTI won
- Aggrobot 2 vs Steg 2: Steg 2 won
Heat Final:
- Overkill GTI vs Steg 2: Steg 2 won
Heat the Ninth
- Main article: Forum:Random Format Series 4 - Heat the Ninth
Robotic Soccer
Round 1
- Bigger Brother vs Razer: Razer won
- Destruct-A-Bubble vs Scorpion: Scorpion won
- Henry 2 vs S.M.I.D.S.Y.: S.M.I.D.S.Y. won
- 101 vs Killerhurtz: Killerhurtz won
Round 2
- Killerhurtz vs Scorpion: Killerhurtz won
- S.M.I.D.S.Y. vs Razer: Razer won
Heat Final
- Killerhurtz vs Razer: Killerhurtz won
Heat the Tenth
- Main article: Forum:Random Format Series 4 - Heat the Tenth
Round Robin heat
Round 1
- Cronos vs Spawn of Scutter vs Bulldog Breed 2 vs King B3: Spawn of Scutter and King B3 won
- Wild Thing vs Wheelosaurus vs Raizer Blade vs Crusader 2: Wild Thing and Crusader 2 won
Round Robin
- Spawn of Scutter vs Crusader 2: Spawn of Scutter won by Knockout
- Wild Thing vs King B3: Wild Thing won by Knockout
- Wild Thing vs Spawn of Scutter: Wild Thing won by Knockout
- King B3 vs Crusader 2: King B3 won by Knockout
- Wild Thing vs Crusader 2: Wild Thing won by Knockout
- King B3 vs Spawn of Scutter: King B3 won by Judges' Decision
Heat Final
- Wild Thing vs King B3: Wild Thing won
Heat the Eleventh
- Main article: Forum:Random Format Series 4 - Heat the Eleventh
Sumo Basho
- Rammstein: 43.73 seconds
- Ming 2: 34.08 seconds
- Chaos 2: 21.34 seconds
- Milly-Ann Bug: 13.75 seconds
- Berserk 2: 13.05 seconds
- V-Max: 10.58 seconds
- Hypno-Disc: 4.91 seconds
Rammstein won
Heat the Twelfth
- Main article: Forum:Random Format Series 4 - Heat the Twelfth
Gauntlet - Trial - Arena
Robots competing: Evil Weevil 2, Fat Boy Tin, Tiberius, Shadow of Napalm, Onslaught, Vercingetorix
Gauntlet: Shadow of Napalm eliminated
Trail (Skittles): Tiberius eliminated
Arena Semi-Finals
- Evil Weevil 2 vs Fat Boy Tin: Evil Weevil 2 won
- Onslaught vs Vercingetorix: Vercingetorix won
Heat Final
- Vercingetorix vs Evil Weevil 2: Vercingetorix won
Heat the Thirteenth
- Main article: Forum:Random Format Series 4 - Heat the Thirteenth
Head-to-Heads
Round 1
- Darke Destroyer 2 vs Indefatigable:
- Arnold, Arnold Terminegger vs Medusa 2000:
- Weld-Dor 2 vs frenZy:
- Major Tom vs Thermidor 2:
Special Event
Challenge Belt
† - Belt won in this battle.
- Trident vs Stealth: Trident won
- Trident vs Griffon: Trident won
- Trident vs Axios: Axios won
- Axios vs Anorakophobia: Axios won
- Axios vs Pitbull: Pitbull won
- Pitbull vs Panzer: Pitbull won
- Pitbull vs Scutter's Revenge: Pitbull won†
- Pitbull vs T 2: Pitbull won
- Pitbull vs Ally Gator: (Robotic Soccer match) Ally Gator won
- Ally Gator vs Death Warmed Up: Ally Gator won
- Ally Gator vs Manic Mutant: Ally Gator won†
- Ally Gator vs Agent Orange: Ally Gator won
Belts won:
- Pitbull: 1
- Ally Gator: 1