They can die at warmup.
PoD Bane already defeated Maul's equal - Kas'im, with both depicted as perfect lightsaber duelists and masters of all there is to know about lightsaber wielding. Unless Maul can use Jar'Kai, Bane kills Maul before Savage is done with Sirak. Sirak is obviously inferior, but there is 50/50 chance that Sirak survives his combat with Savage long enough for Bane to kill Maul.
Round 1 - two at the same time is probably too much for Bane.
Round 2 - Kas'im is already Maul's equal, but Ezra and Set together may still be not enough for Savage.
Round 3 - Marr solos, no contest there. Maul and Savage are hopeless against Marr alone. With the other two Maul and Savage are stomped instantly.