The USA Eagles earned their first win in a year on Saturday with a 25-23 victory against Georgia, thanks to a last-second penalty kick from flyhalf Adam Siddall.
Georgia secured a scrappy 19-15 victory over Canada in their clash in Tbilisi on Saturday.
Argentina came back from a 9-12 half-time deficit to beat Georgia 29-18 in a one-off Test on Saturday.
Fullback James Pritchard scored 21 points as Canada defeated Georgia 31-12 in an international match.
At the freezing cold Spartak Stadium in Alushta on the Black Sea, Spain beat Ukraine 41-6 in a European Nations, Division One match on Saturday.
Argentina secured their progress to the quarterfinals from Pool B at the World Cup after an unconvincing 25-7 win over a tough Georgia side who weren't intimidated against the bigger opposition.
Georgia made six changes to the team that beat Romania as they aim to end their World Cup on a high against Argentina at the Arena Manawatu in Palmerston North on Sunday.
Argentina will hold most of the aces going into Sunday's Pool B finale against Georgia with World Cup last-eight qualification rivals England and Scotland having fought it out the previous day.
Georgia showed good determination to hold off a physical Romanian side before pulling away and registering a convincing 25-9 victory in their World Cup Pool B clash in Palmerston North on Wednesday.
It's a long way for home for Georgia and Romania and yet their Pool B World Cup match has something of a local derby about it.