London Broncos' brave bid to retain their Super League status came up short, while Salford Red Devils claimed third place in the table.
Jay Pitts' late try means London Broncos remain in with a chance of beating the drop, while also leaving Hull KR in deep trouble.
Super League leaders St Helens were slender victors against Castleford Tigers, while Huddersfield Giants eased relegation fears.
Wakefield Trinity stylishly claimed just a second victory in 13 Super League matches, beating fellow strugglers Hull KR 38-10.
Ratu Naulago scored twice as Hull FC eased past Super League strugglers Wakefield Trinity on Sunday.
Huddersfield Giants were torn apart by struggling Leeds Rhinos at their own ground in Super League on Friday.
In a game with ramifications for both teams in Super League, Huddersfield Giants held on to secure an 18-12 triumph over Hull KR.
Super League table-toppers St Helens moved 10 points clear after a 32-10 win over Wigan Warriors, while Salford surprised Warrington.
Darnell McIntosh played a starring role as Huddersfield Giants ended a four-game losing streak with victory at Salford Red Devils.
Warrington Wolves looked set to close the gap on Super League leaders St Helens, but Jonny Lomax inspired his side to yet another victory.