Qualifying and winning a MD R1 match, to take him to 643 ranking points, would very likely be enough.
'Just' qualifying, to take him to 593 points, would be very unlikely to be enough. So a R1 win looks the top 100 counter.
Will be clearer once qualifying is over ( with hopefully Billy through ) and we see the live rankings tables for next week and what other players are up to.
Very good start. 13 (net 5) points to take him to 581 points.
Tseng didn't look that impressive early on, and Billy had quite a few chances to press on and get the key break in the second set. But just couldn't get it, the Taiwanese player fought his way back into the match and has now taken total control of the 3rd.