North Wales Crusaders continued their 100 per cent record in Betfred League One with a 30-16 win over Oldham.
The Crusaders raced into an 18-0 lead thanks to Rob Massam and a Gavin Rodden double.
There was no stopping the hosts when Alex Eckley and Jordan Gibson made it 30-0, however Oldham sparked somewhat of a comeback with 16 straight points through second-half tries from Billy Yarrow, James Thornton and Brad Jinks but the damage was already done in the first half.
Doncaster scored 30 unanswered second-half points to secure a 44-12 victory away to London Skolars, who remain bottom of the league.
With the scores at 14-12 to Doncaster going into the break, the visitors ran over five times thanks to a Sam Smeaton hat-trick, with additions from Travis Corion, Ben Howe and Tom Halliday.
West Wales Raiders claimed their first win of the campaign with a 20-0 victory over fellow strugglers Cornwall.
Callum Merrett scored a brace, while Fergus Simpson and Kian Fisher grabbed one apiece.
Second-placed Keighley Cougars also kept up their winning start with a 40-16 home win over Rochdale Hornets.
The away side led 10-4 in the first half through Cian Tyrer and Lewis Sheridan, but a second half onslaught including a Mo Agoro double sealed the points for Keighley.
Swinton Lions - in fourth - kept the pressure on the top sides with a hard-fought 28-16 victory over Hunslet.
The damage was done in the first half when Louis Brogan, Lewis Charnock and George Roby fired them into an 18-6 lead but 10 points apiece in the second half did not stop Swinton from picking up their fifth win of the campaign.
Betfred League One Results:
Saturday 14 May
- London Skolars 12-44 Doncaster
- North Wales Crusaders 30-16 Oldham
Sunday 15 May
- Cornwall 0-20 West Wales Raiders
- Keighley Cougars 40-16 Rochdale Hornets
- Hunslet 16-28 Swinton Lions