Instonians inactivity on Saturday allowed Seapoint to move to the top of Division Three with a home win over City of Derry.
Inst were forced to postpone their game with Sunday's Well due to a frozen pitch at Shaw's Bridge, but they will hope to play the game this Saturday. Clem Boyd's side are the only unbeaten team in Division Three, but slipped to third, two points behind Seapoint, with a game in hand.
It was a battle of the promoted clubs at Kilbogget Park with both Seapoint and City of Derry rejoining the senior ranks via last season's round robin.
Seapoint came from behind to claim a 9-6 victory, thanks largely to Brian Keegan.
It was Derry's second defeat, although the losing bonus point takes them into second place, but Bevan Lynch's men squandered a 6-0 lead. Outhalf Richard Peoples opened the scoring with a 22nd minute penalty and he doubled Derry's lead with a second successful kick on 33 minutes.
Seapoint outhalf Keegan cut Derry's advantage at the interval to three points with a penalty.
Keegan levelled the scores on 58 minutes with another penalty and he won it for the Dubliners with a drop goal 12 minutes before the end.
Rainey moved up to ninth with an empathic bonus point victory in the Ulster derby against Ards at Hamilton Park.
The 40-12 win was the Old Boys’ third of the season and puts them well clear of the relegation dog fight.
Ards had made the better start and scored all their 12 points in the opening four minutes. Scott Young got an early try for the home side and Ryan Diver also crossed after a quick tap penalty.
Rainey settled down and a Michael Shields’ try and the kicking of Mark O'Connor helped them to a 18-12 half-time lead.
Shields added a brace of tries after the break to complete a hat-trick while David Dawson and Nathan Amos also touched down.