On paper, Rayo Vallecano is the favorite in this clash, but that doesn't mean it will be an automatic win for them. Girona is also on a good run, it's just that the increase had to stop because of the break that occurred. Girona will maximize their first match in La Liga, as well as Rayo Vallecano, they definitely want to boost their position in the standings by winning this match. This match will be held at Montilivi which is the headquarters of Girona, the hosts definitely don't want them to be embarrassed in front of their own fans and will show their best.
It seems that both teams will play with full strength, on the other hand whoever wins will determine the next position in the standings. Of course, Girona doesn't want its supporters to go home early while watching the match, so Girona must really give maximum results in this match.
Valecano has won more game than Girona so I think they have more chance to win Valecano. If Valecano is unable to win the game it may likely end in draws, the two teams are still struggling for points.
Indeed, Rayo Vallecano is very favored in this match, winning 3 wins in the last 5 matches, of course, is a good capital when they travel to Girona cage later. But the hosts certainly don't want to be embarrassed at their own turf, maybe if successful Girona will be able to hold a draw, but the worst result is that Girona can lose to Rayo Vallecano.