Alton came back and relentless pressure resulted in two tries. Field then restored their lead with a penalty to lead 13-12 at the break.
Alton scored a try with an excellent run from their second row to take a four-point lead. Field came back and Moore’s crossfield kick landed perfectly for Banwell to score in the corner and nudge Field 18-17 in front.
Alton were awarded a penalty with six minutes to go and took a 20-18 lead. Petersfield attacked with vigour and with two minutes to go were rewarded with a penalty. Wilson coolly slotted the points to win the game 21-20 and seal the league and cup double.