He returned to the PGA Tour in 2008 and finished 108th on the money list to retain his card for 2009.

In 2010, McCarron became embroiled in controversy when he accused fellow PGA Tour player Phil Mickelson of "cheating" for using a Ping-Eye 2 wedge made before April 1, 1990 that is allowed under a legal technicality.

[10] The following month McCarron won the MasterCard Japan Championship by three strokes for his third win of the season.

On November 10, 2019, McCarron won the season-long Charles Schwab Cup and a $1,000,000 annuity on the PGA Tour Champions.

[11] On January 15, 2020, McCarron received the Jack Nicklaus Trophy as the 2019 PGA Tour Champions Player of the Year.