Canadian François Lavoie and American Chris Via, and Australian Jason Belmonte have since joined Rash in this exclusive club.

As of January 2020, Rash is a member of the 900 Global[5] and Vise Grips pro staffs, being previously sponsored by Brunswick for 17 years.

Frustrated by a lack of scratch tournaments for junior bowlers, he started his own: Sean Rash Stars of the Future.

He holds the distinction of being the first PBA player to ever win a title when starting from the Tour Qualifying Round (TQR), which he accomplished in his rookie season at the 2006 West Virginia Championship.

The streak ended when Rash lost to Norm Duke in the semifinal match of the 2008–09 season-opening PBA World Championship.

[15] One day later, Rash won his 11th title in the PBA Detroit Open, defeating top seed Jason Belmonte in the final match.

[16] As one of the top eight money leaders from the start of the 2015 season through the 2017 USBC Masters, Rash was invited to participate in the inaugural Main Event PBA Tour Finals in May 2017.

[18] Rash endured his most difficult season to date in 2018, advancing to match play in only 10 of 30 events and making only one championship round appearance.

[22] Rash was also recognized as the USBC Cup champion for earning the most points during the nine-event 2019 PBA Summer Swing, which awarded him a $20,000 bonus.

[25] On June 13, 2020, Rash won the PBA Summer Clash, a non-title made-for-TV event held in Jupiter, Florida.

Rash outlasted nine other competitors in the one-ball elimination tournament, surviving two sudden-death tie-breakers on his way to defeating Bill O'Neill in the ninth and final round.

[26] On October 4, 2020, Rash won the PBA World Series of Bowling XI Cheetah Championship held in Centreville, Virginia.

This was Rash's first title in a World Series of Bowling event after 15 previous final round appearances, which included four runner-up finishes.

[28] In the opening event of the 2022 season, the PBA Players Championship, Rash won the Midwest Region final over Matt Russo.

He was fined an undisclosed amount, forced to miss one February event (later announced as the Dave Small's Best of the Best Championship), and was placed on one year probation by the PBA for "conduct unbecoming a professional".

[30] Early in the 2023 season, Rash announced he has been diagnosed with a degenerative disc disease, but still wants to continue bowling as much as treatment options will allow.

He was a member of the Las Vegas High Rollers PBA Elite League team, which won the 2024 Elias Cup championship.