Jones shares third place, just two shots out of the lead at the Nationwide Children’s Hospital Championship in Ohio while Luck is a stroke further back and joint seventh.
The event is the first of four that will decide 25 places on next year’s PGA Tour and a top five result in any of the four is all but guaranteed to graduate.
Nine Australians are taking part in the four-tournament series which brings together those finishing 126-200 on the FedEx Cup with the top 75 earners from the secondary Tour.
A mini money list of cumulative earnings over the four events will determine the 25 players to advance with the top 25 earners from the Web.com regular season already assured a card.
Jones has returned rounds of 68-67 to be 7-under for the week as American Robert Streb leads alone on 9-under.
Another American, Kramer Hickok, is outright second on 8-under with Jones one of four players at minus seven.
It was a relatively uneventful round for Jones with four birdies against a lone bogey but Luck’s path to his 2-under 69 was more adventurous.
Starting his round at the 10thtee Luck managed just three pars on the outward half, notching five birdies and a double bogey to turn 3-under.
One birdie and two bogeys on the inward half added up to a 2-under total and while he will be looking for more consistency over the weekend it is a solid start.
Cameron Davis, Rhein Gibson and Aaron Baddeley are the only other Australians to qualify for the weekend, Davis 2-under and T34, Gibson 1-under and T40 and Baddeley 1-over and T63.
Cameron Percy, Brett Drewitt, John Senden and Stuart Appleby all missed the cut.
SIGNATURE HOLES - 16TH AT WINDAROO LAKES, QLD:
Want video tips delivered straight to your inbox? Subscribe to iseekgolf.com newsletters.