Over 21 games
Harriet Dart played 3 matches so far this season and won two of them. She dominated against both Australian players she faced in her road to the main draw.
Nao Hibino is very active from the start of the season. She won 5 of her 6 matches, so she's in good form.
Both players will be looking to book a place in the main draw. Dart is set as slight favorite, but Hibino is in good form and won't give up easily. I expect many games here.