Lanser led from the front for Manawatu at the bowling crease, claiming 3-49 off seven overs. Player-coach Richardson, a member of Ireland's national side, was economical in conceding 39 runs from her 10 overs, as was Bennett, whose four overs cost just 12 runs.
Originally chasing 244 for victory, Manawatu had their target reduced to 225 by rain delays and they got home with the last pair, including Hansen, at the wicket.
Richardson top-scored with 66 off 56 balls, while Lanser completed an excellent all-round effort in making 55 off 73 balls, Cloake made 7 off 15 balls and van Deventer looked good in a brief stay before holing out in the deep.
However, it was Hansen who had the final say. Manawatu were still nine runs short of victory when she and Hannah Rowe came together in what was to be a vital last wicket stand. It was Hansen who pulled a short ball to the boundary to bring up the winning runs with just eight balls left to be bowled.
Manawatu will be without Lanser and Richardson when they play Wellington in Palmerston North this Sunday as they will both be involved in World Cup qualifying matches in Bangladesh.
-The Wairarapa under-14 boys cricket squad for the 2011-12 season was announced today.
-It is: Liam Burling (captain), Nathan Elliott, Zac Caldwell, Ben Clatworthy, Keegan Curtis, Jack Forrester, Luis Garnett, Brad Griffith, Miller Payton, William Payton, Guy Percy and Gus Wakeling.