The 37th official event of the season, the top-31 players on the money list will duke it out for four days over the 7,012-yard layout, with a record-matching total purse of $2.5 million on the line.
To the winner goes $435,000 this year, which is the largest purse ever to be offered in Senior Tour history.
All the big guns will be present in Oklahoma.
No. 1-ranked Allen Doyle tops out the money list with $2.52 million in earnings, some $150,000 more than second-placed Bruce Fleisher.
Also in the field is Hale Irwin, who at No. 3 on the list, leads ever-so-slightly over last weeks winner of the SBC Championship Larry Nelson.
While Nelson is quite some way back of first, he leads in the wins category by far with five victories in 2001.
Gaillardia should prove an adequate test in its first year as host to this event.
Tom Watson won last years tournament at the TPC of Myrtle Beach, when the five-time Open champion shot a final-round 66 to outlast John Jacobs for his only win in the 2000 season.
At 21st on the money list, hell be present this week as well.
So too will the top-16 players on the 60-and-over Super Seniors Tour. They will compete from Thursday through Sunday for a first-place check worth $142,000.
If all this werent enough, this event marks the last in the Charles Schwab Cup, which is a year-long points race culminating at this weeks tournament.
As he currently leads in the money race, Doyle also is out front on this list. However, the New Jersey native is only some 200 points ahead of Fleisher, and with 453 points going to the winner of the Tour Championship, anything can happen.
The winner of the Charles Schwab Cup come weeks end will be the happy recipient of a $1 million annuity, with additional prizes awarded to the next four players.