Anything can happen at both ends of the table in Group Two depending on how results pan out on Sunday afternoon.
All four positions are up for grabs, with the team finishing bottom crashing out of the championship.
Galway, Armagh and Tyrone can all still claim top spot while Armagh, Tyrone and Westmeath can all finish last.
A win or a draw for Galway will see them move to the quarter-finals as their points tally can’t be matched.
Westmeath head into the weekend needing a win. A draw or defeat would mean they finish bottom of the group.
If Galway & Tyrone win
Going by the bookies odds ahead of the weekend’s action, victories for Galway and Tyrone are the most likely scenario.
Should Galway overcome Armagh, then they are guaranteed top spot and a place in the All-Ireland quarters finals.
In this case, Tyrone would claim second place in the table and enjoy home advantage for their preliminary quarter final.
That would leave Armagh in third position and see Kieran McGeeney’s men on the road for their preliminary quarter final.
If Armagh & Tyrone win
Should Armagh see off the Tribesmen and Tyrone beat Westmeath, then three teams would finish on four points.
Galway are top of the table having beaten Tyrone and Westmeath. But they will finish on four if happen to lose this weekend.
A win for Armagh, along with their first-round victory over Dessie Dolan’s side would also see them on four.
Tyrone earned a win over Armagh and if they grab a second victory on Sunday, they’ll also finish on four points.
That would mean the top three positions are decided via score difference. Galway currently have +11 while Armagh and Tyrone are both on -1.
If Galway & Westmeath win
Galway win finish top of the group while score difference will come into play to decide the other three positions if they and Westmeath happen to win
A Westmeath victory would see Armagh, Tyrone and the Leinster men finish on the same number of points.
Westmeath currently sit at the bottom of the group with the worst score difference of any of the teams, -9.
They would have to beat Tyrone by double figures, or Armagh lose to Galway by a similar margin, to knock Kieran McGeeney’s men out of the championship.
If Armagh & Westmeath win
An Armagh victory will see them top the group and advance to the quarter finals thanks to head-to-head advantage over Galway.
Should Westmeath cause a shock, then Galway are guaranteed a second-place finish in the group.
That would see Westmeath claim third position with Tyrone exciting the championship via head-to-head with Westmeath.
If both games finish all square then Galway advance, Westmeath crash out, Tyrone finish second and Armagh come third.
If Armagh and Galway draw and Tyrone win, Galway will be top of the table, followed by Tyrone then Armagh .
Should the encounter in Carrick-on-Shannon finish level and Westmeath win, then they would claim third place with Tyrone losing out.
If Armagh lose and Tyrone draw with Westmeath, then the Orchard County finish in third place, with Tyrone coming second.