In 2014, Johnny Greaves put an exclamation point on his illustrious career by successfully defending his 2013 Pro 4×4 championship with a repeat performance. He took the title, and then watched as his son CJ matured into a seasoned professional driver. Johnny podiumed in all but two races, including a second place in the AMSOIL Cup race.
In 2015, with Johnny in the familiar Pro 4 and CJ moving up into the Pro 4 ranks, Johnny was in the unique position of cheering on CJ, while at the same time working hard to defend his 2014 Pro 4 championship. Johnny finished the year in the runner-up position behind CJ and added another FC Potawatomi Cup to his shelf.
In 2016, Johnny has again topped the Pro 4 podium, leading the class in points at mid-season.