Ruzic too much of a favorite?

That definitely seems to be the case..

A duel between a calm, structured player and the Argentine fire, still a bit lacking in stability. Ružić started her season in a rather neutral way, with a loss to Timofeeva, who was hitting hard and disrupting her baseline game, then a win over a young Colombian much more used to playing at altitude than at sea level and in windy conditions. The Croatian has a well-oiled game, likes to set up long rallies, and often has the last word in that area. This type of surface in Hobart gives her time to get into position and force her opponent into errors.

Sierra is at the opposite end of the spectrum. Very approachable and opportunistic, she plays aggressively, constantly taking risks. She was a big underdog against McNally, but managed to turn the match around in three sets thanks to the quality of her first serve and powerful crosscourt forehands and backhands, allowing her to shorten rallies quickly. The wind doesn’t seem to bother her at all. The scenario here could be quite similar, as Ružić’s profile is fairly close to McNally’s.