Newly promoted Doncaster Phoenix lost 13-9 at Ilkey in their Yorkshire One opener on Saturday.
Ilkley, who finished in third spot last season, opened with a penalty goal from scrum half Tom Collard.
But Phoenix stayed in the hunt with two penalties by fly half Dan Storey to turn round 6-3 up.
However, Storey’s third penalty was their only second half score as Ilkley hit back with tries from Stuart Brewer and centre Craig Barker.
Wath on Dearne secured an impressive 28-21 win at Heath in their opening Yorkshire One clash.
After Heath had kicked an early penalty, centre Martin Bray got Wath off the mark with a try which former Barnsley stand off Andrew Appleyard converted.
Flanker Martin Balshaw’s try was also converted by Appleyard, but the hosts hit back to lead 16-14 at half time with a try, conversion and two more penalties.
However, Wath came out strongly for the second half.
Appleyard scored and converted his own try to put Wath back in front at 16-21.
Full back Ian Barker then touched down and was on target again to put Wath 16-28 ahead and render a late try from Heath nothing more than a consolation.
Thornensians lost out 24-15 to Goole in their opening Yorkshire Three match.
Captain and winger Brett Hunt bagged one of Thorne’s two tries, while centre Ollie Cox added the conversion.
Right winger Danny Gilbert also touched down but it wasn’t enough to avoid defeat.
Thorne will be aiming to improve this weekend for the visit of Harrogate Pythons.