Table:
text: 1981 IndyCar season
Race Results
Race Results
Name_ Pole_Position Fastest_Lap Winning_driver Winning_team Report
Kraco Car Stereo 200 Bobby Unser Unknown Johnny Rutherford Chaparral Report
Gould-Rex Mays 150 Gordon Johncock Unknown Mike Mosley All American Racers Report
Kraco Twin 125 (R1) Johnny Rutherford Unknown Rick Mears Penske Racing Report
Kraco Twin 125 (R2) Rick Mears Unknown Rick Mears Penske Racing Report
Norton Michigan 500 Tom Sneva Unknown Pancho Carter Alex Foods Report
Los Angeles Times 500 Geoff Brabham Unknown Rick Mears Penske Racing Report
Tony Bettenhausen 200 Johnny Rutherford Unknown Tom Sneva Bignotti-Cotter Report
Detroit News Grand Prix Rick Mears Unknown Rick Mears Penske Racing Report

Question: Who was the winning Kraco Twin 125 (R2) driver in the 1981 IndyCar season?