Now they are reliant on three of the five relegation/play-off possibilities having to be realised, ranging from the drop zone in National Two to the play-offs from each of the London League above them to be saved from a return to Hampshire One.
But this game typified everything that the Test Park outfit have gone through this term - plenty of pressure being applied, but not turning it into points. Showing extensive effort and commitment, only for it not to count in the wins column.
Two penalties through Dave Griffiths opened up a 6-3 interval lead, but there was cause for disappointment as Cador went over twice, only for both to be disallowed and the danger cleared as Southampton pressed for an advantage.
Griffiths did register a try and conversion, which looked like being enough until some sloppy defending let PJF to steal the points in the dying minutes of the contest, although as it turned out US Portsmouth and Old Emanuel winning still meant they remained in their starting position.
Now, Cador and his men have to wait until April 26 to find out their fate, but they will be willing Newbury, Lydney, Haywards Heath, Portsmouth and Barnes to victory in their respective games.