Disappointing first-up at Caulfield on February 8 on a track Begg said was worse than its rating of Good 4, Rich Dottie was just touched out over Saturday's course and distance on March 1.
"She ran well up the straight and just got beaten at her only try," Begg said.
"She likes firm ground, which is what she's going to get, but we're under no illusions. It has come up strong, but they put the prize money on, so you've got to expect it.
"She had a little tick over jump-out on Monday and went beautifully. She's in good order and now she has to measure up."
Begg said Rich Dottie may head to Adelaide for the Listed Redelva Stakes (1100m) at Morphettville on April 12 after Saturday's outing depending on her performance.
He said the prospects of heavy rain in Sydney made that decision easier.
"They're tipping armageddon in Sydney on the weekend and once it starts it will probably remain wet," Begg said.
"Her two starts on wet ground, she's been hopeless."