The Cornish Pirates won 32-6 at Dundee High, while Plymouth Albion suffered a heavy 59-26 defeat at Rotherham.
It's not been a good day for our Championship teams.
The Cornish Pirates lost 25-24 at London Scottish, with the home side kicking an 80th minute penalty to win the game.
Local Newlyn youngster Jack Nowell had earlier scored a debut try for the Pirates.
Meanwhile, Plymouth Albion suffered a heavy 55-17 defeat at Bedford.
Plymouth Albion bounced back from last week's derby defeat to beat Leeds in a thrilling game at Brickfields.
The visitors outscored their hosts by five tries to four, but Albion were grateful to the kicking ability of Paul Roberts, who kicked 12 points.
Leeds scored a last minute try through Jacob Rowan, bringing them one point behind Albion with the conversion to come.
With the home fans biting their nails, Joe Ford missed his kick to give Albion their first five points of the season.
Plymouth Albion made a winning start to the new season but were made to work hard by Doncaster.
Sam Hocking and new signings Tom Bowen and Brett Beukeboom had scored tries to put Albion 27-14 ahead, but they had to survive a few late scares as the visitors staged a late fightback.
Albion's troubled season ended in style at Brickfields.
A high-scoring game saw the home side cross the line eight times, with two tries each for Paul Rowley and Paul Bailey.
Already safe Plymouth Albion suffered a heavy defeat at Esher in the Championship relegation play-offs.