Diana Zavjalova took full advantage of Thursday's short oil pattern, breaking the eight-game qualifying block record and holds a commanding lead over the rest of the field.
Twenty four competitors advanced into the main field at the U.S. Women's Open in Indianapolis, led by Esther Cheah.
The second PWBA Tour major of the year is up for grabs at historic Royal Pin Woodland in Indianapolis.
In one of the highest-scoring stepladder title matches since the PWBA's relaunch, Lauren Russo came out on top to win her first career title.
Diana Zavjalova holds the lead after Day 1 of the PWBA Southern Indiana Open after averaging over 238.
The main field is now set for the Southern Indiana Open after Thursday's PTQ, led by Jenna Williams.
With a week in Smyrna now complete, the PWBA Tour now heads to Clarksville, Indiana, for the first time ever.
Shannon Pluhowsky came away with her second title of the season and fourth overall after winning the final event of PWBA Classic Series - Nashville.
Only eight games remain at the PWBA Music City Classic and Bryanna Coté holds the lead after winning 10 matches on the day.
Cherie Tan continues her excellent week of bowling at the Classic Series - Nashville, ending Saturday night as the champion of the second event of the week.
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