Since winning is easy (see Fistfighting made easy), without further ado, the fighters are (in plot order):
Prologue (Kaer Morhen)
- This is a fistfighting tutorial which also starts the quest; there is no Title to be won.
- Eskel can be found in or near the Armory on Kaer Morhen's second floor after you have skinned the Frightener, but he will not have anything to say until you have given Triss her potion.
- You might miss talking to Eskel if, after giving Triss her potion, you tell her there is no time to waste (goes directly to funeral), or you talk to her or Vesemir about starting Leo's funeral.
- The quest can also be started in Chapter I.
Chapter I (Outskirts of Vizima)
- Fat Fred hangs out at the Inn in the Outskirts.
- He will start the Fistfight quest if you did not get it during the prologue.
- He would be happy to rearrange your face for a 25 wager.
- After winning, Geralt retains his wager and may choose one of the following prizes:
Fat Fred is accompanied by several fistfighters, many willing to "kick your arse and make money doing it!."
Chapter II (Temple Quarter of Vizima)
- Butter Bean hangs out at The Hairy Bear in the Temple Quarter.
- He is touchy about his weight.
- After winning, Geralt retains his 75 wager and may choose one of the following prizes:
Butter Bean is accompanied by several fistfighters. Geralt also has a fistfight in the prison dungeon to secure his freedom (regardless of the outcome); the prisoner looks remarkably like Fat Fred.
Chapter III (Trade Quarter of Vizima)
- Andrew Gablodda makes his living at the The New Narakort in the Trade Quarter.
- He was a celebrity until an unfortunate knock-out. Now he wears a hood in public.
- He is clearly inspired by Polish boxer, Andrew Golota.
- After winning, Geralt retains his 200 wager and may choose one of the following prizes:
Andrew Gablodda is accompanied by several willing fistfighters. The bouncer at the House of the Queen of the Night will allow passage upstairs if beaten in a fistfight. Rozalind Pankiera's father, Hobbs, will allow access to his daughter's room (for Dandelion's lute) if defeated in a fistfight. Fistfighting is one way past the guards of the Fisstech lab in the sewers.
Chapter IV (Lakeside)
- You will find the Rock at the Country Inn in Murky Waters.
- He tells Geralt about the final Champion.
- After winning, Geralt retains his 500 wager and may choose one of the following prizes:
It is truly amazing that Julian and Dandelion can sleep at all given that boxing matches go on 24 hours a day, right next to their beds at the Country Inn in Murky Waters. Quite a few professional fistfighters use the back room to work out apparently.
Chapter V (Old Vizima)
Zdenek, the Champion
- Zdenek is the reigning world champion. He is undefeated — well no one has beaten him twice in a row.
- He can be found inside the southernmost refugee cave in the swamp cemetery.
- At least he has the decency to keep his fistfights to the privacy of his own chamber in the cave.
- Geralt must beat Zdenek twice in a row. To do so, he must meditate or exit/re-enter the cave.
- If Geralt defeats Zdenek, he gets his tooth and becomes the new reigning world fistfighting champion. The quest is then completed.
- After Zdenek is defeated, Geralt may come back later at any time for a friendly rematch. This is for fun only - there is no additional reward for defeating him more than twice.