Livorno thrashed 10-man Catania this afternoon but it was to count for little as the Tuscans still suffered relegation following 17th-placed Bologna's victory over Parma.
Cristiano Lucarelli opened the scoring for the hosts from the penalty spot in the 50th minute after Catania's Ciro Capuano had brought down Davide Di Gennaro inside the area.
Capuano was shown a second yellow card and handed his marching orders.
Claudio Bellucci doubled Livorno's advantage on the hour mark before Martin Bergvold made it 3-0 six minutes later.
Catania striker Maxi Lopez scored a consolation goal with three minutes remaining.
Rock-bottom Livorno moved to 29 points but have no chance of staying in the top flight as they are 10 points adrift of Bologna with three games left to play.
Catania still have some work to do to secure their Serie A future as they are just four points clear of the drop zone.
Livorno coach Gennaro Ruotolo went into the game looking for his first win since returning to the Tuscan outfit earlier this month in place of the sacked Serse Cosmi.
Ruotolo, who guided Livorno to promotion to Italy's top flight last summer before leaving the club, had called for his players to fight until the end.
The message clearly got through because Livorno played one of their best games of the season.
They enjoyed a strong start with Lucarelli4s bullet strike from 35 yards going wide.
At the other end, Gennaro Delvecchio latched onto Capuano's cross and his header went just wide of the far post.
In the 16th minute, Catania goalkeeper Mariano Andujar was forced to fully stretch to clear Bergvold's left-footed strike from the edge of the area.
Andujar was called on again to make a save from Bellucci's stinging long-range drive.
On the half-hour mark, the visitors had a good opportunity to break the deadlock when Lopez surged inside the area and his powerful shot towards the far post was parried away by Livorno goalkeeper Alfonso De Lucia.
Livorno picked up where they left off after the break and almost immediately went in front.
The referee did not hesitate pointing to the penalty spot after Capuano's foul on Di Gennaro and Lucarelli coolly struck the ball towards the bottom right corner, out of Andujar's reach.
News of Bologna going in front in their game against Parma was met with a silence from the fans at the Armando Picchi stadium but it did not deflate Ruotolo's players, who kept surging forward.
With one man short, Catania struggled to stop Livorno4s advances and it did not take long for the hosts to strike again.
Lucarelli served Bellucci inside the area and his right-footed volley beat Andujar.
The home side had the wind in their sails and scored a third not long after.
Bergvold got behind Lucarelli's pass and hit the ball from the heart of the area past Andujar.
At the other end, De Lucia made a great save to clear Marco Biagianti's right-footed strike from 20 yards.
Catania finally hit the back of the net in the 87th minute.
Lopez's right-footed volley from 20 yards struck the post and went in.
With seconds remaining, Davide Moro warmed the hands of Andujar with a bullet strike in what was the last chance of the game.