Rochdale climbed out of the Sky Bet League One relegation zone for the first time since mid-December after a 1-1 draw with okay-off chasing Plymouth.Ryan Delaney's 55th-minute header cancelled out Joel Grant's opener for the visitors, who were the better side in the opening half and were left to rue missed chances.Graham Carey, Antoni Sarcevic and Ruben Lameiras were all denied by Josh Lillis and when Carey beat the goalkeeper with a curling shot his effort struck the post.Dale boss Keith Hill made a double substitution at the break and his side started the second half brightly, Callum Camps' flicked effort forcing a good save out of Remi Matthews.The home side were dealt a sucker punch when Argyle broke forward and Lameiras picked out Grant, who headed home on 54 minutes. But Dale levelled within a minute, Delaney heading home Brad Inman's corner.Dale looked the more likely to grab a winner with Matty Gillam's turn and shot from close range flying over the Plymouth crossbar, while Inman had a shot beaten away by Matthews.