And that would probably leave them needing as many as three wins from their last four preliminary round games to make the Meads Cup semis.
In Wairarapa-Bush's case not having pacesetters and defending champions Mid-Canterbury as one of their opponents would be a plus, but they would still have three "toughies" in West Coast, Horowhenua-Kapiti and Wanganui to come along with East Coast, which has yet to win a game.
Even though that game is scheduled for Ruatoria, a Wairarapa-Bush victory there should almost be in the "given" category.
The stoicness of their defence has been the feature of the Wairarapa-Bush performance so far this season and is illustrated by a points table that shows the 40 points they have conceded is 15 fewer than any other side.
However, the 66 points they have scored themselves has been bettered by seven teams including South Canterbury, whose 114 has them third behind Poverty Bay (123) and Horowhenua-Kapiti (116).
South Canterbury has been involved in three high-scoring encounters. They opened their Heartland campaign with a 34-17 loss to Mid-Canterbury and then beat East Coast 57-5 and West Coast 40-24.
There are three notable "imports" in the South Canterbury squad, and all are from the Christchurch club ... No8 Kieran Coll, halfback Nick Annear and first-five Jason Merrett. Annear, in particular, has a strong pedigree, having played for New Zealand Schools and New Zealand Universities as well as the Southland Stags.
Merrett is the first string goal-kicker, but could be a doubtful starter for Saturday's match after retiring from the West Coast game with a calf injury.
Wairarapa-Bush also has injury hassles with prop Kurt Simmonds and flanker Chris Raymond being forced from the field in the 14-13 win over Buller last weekend.
Their 22-man squad will probably be confirmed tomorrow.
Meanwhile, the Wairarapa-Bush Rugby Supporters Club will officially open the refurbishments they have made to their "Gravel Pit" headquarters at Memorial Park at 1pm on Saturday.
Sir Brian Lochore will do the honours.
Club president Roddy McKenzie said much of the work was done on a voluntary basis with Tod Brooks leading the charge and support from Wairarapa Scrap Metals was a huge assist as well.
The club now has a membership of 150, making it among the biggest of its kind in the country.