Stanford, CA, USA, 6 August 2015 | AAP/AP

For the second straight day, Australia’s Ajla Tomljanovic has started slowly but roared home to win through at the WTA’s Stanford Classic in California.

Tomljanovic reached the quarterfinals on Wednesday, contending with heavy crowd support for seventh-seeded American Madison Keys in a 1-6 6-4 6-1 victory.

It came a day after she took time to warm up before rattling off 12 straight games in a first-round 3-6 6-0 6-0 triumph over Russian Vitalia Diatchenko.

“That was tough. I thought I’d be off that court in 35 minutes,” Tomljanovic said. “She played so well in the first set, I felt like I wasn’t even in it.”

Tomljanovic refocused on holding serve and eventually got herself back into the match.

“I’m already considering this a great week,” Tomljanovic said. “When you go through bad stretches, you learn to appreciate wins even more.”

The Croatian-born Tomljanovic will next face either Kimiko Date-Krumm or Karolina Pliskova for a place in the semifinals at the hardcourt tournament.