Offaly maintained their unbeaten run, with a 0-13 to 1-04 win over McGrath Cup champions Waterford.
Waterford were outscored by eight points to one in the second half, with Offaly forward Niall McNamee performing well, kicking two excellent points, with Nigel Dunne, Willie Mulhall and Graham Guilfoyle also on target.
Earlier, Waterford led by 1-03 to 0-05 at half-time, with Michael Curry netting Waterford’s goal.
Offaly stole a march on the restart, despite two black cards, including one for Anton Sullivan late on.
Carlow dug deep to deliver a 2-09 to 0-13 win over London at Netwatch Dr Cullen Park.
Points from Daniel St Ledger and Darragh O’Brien in the closing six minutes help the hosts to victory, in a game which was tight throughout.
London edged a 0-05 to 0-04 interval lead, and despite the Exiles moving two ahead on the restart, a 38th-minute Hugh Gahan goal, after a pass from Ciaran Moran brought Carlow to life.
No more than two points separated the sides over the next 15 minutes, although Darragh O’Brien’s 56th minute goal handed Carlow a 2-07 to 0-09 lead.
London fired four unanswered points in a three-minute spell, but Carlow dug deep for victory.
Longford edged a 0-14 to 0-13 home win over Antrim at Glennon Brothers Pearse Park.
The hosts claimed an early four-point lead, before an Antrim fightback.
Two points from Ryan Murray and a score each from his brother Conor, and CJ McGourty brought Antrim level.
The visitors trailed 0-09 to 0-08 at the break and the game stayed tight, but a late free gave Longford victory while Antrim remain without a league win.
Wicklow were also one-point winners, as they claimed their first win in the 2015 Allianz League, thanks to a hard earned 0-11 to 0-10 win over Leitrim in Aughrim
Trailing by nine points to no score at one stage, and by five at half-time, Jonny Magee’s charges made a superb second-half recovery, holding Leitrim to just one score.
Late points from John McGrath and Sean Furlong handed the hosts an 0-11 to 0-09 lead, and although Kevin Conlan reduced the gap with late free but Wicklow claimed victory by the minimum.
DIVISION 4 RESULTS
Carlow 2-09 London 0-13
Longford 0-14 Antrim 0-13
Wicklow 0-11 Leitrim 0-10
Offaly 0-13 Waterford 1-04