Forbes magazine recently released its annual list of the top 30 celebrity earners under the age of 30, and both Spieth and McIlroy made the list for the period in which earnings were measured: June 1, 2015 to June 1, 2016.
Spieth, 23, tied for 10th alongside NFL quarterback Cam Newton with $53 million in estimated earnings before taxes. That total included the money he earned from his U.S. Open victory at Chambers Bay and a reported $32 million in sponsorship deals from the likes of Under Armour, Coca-Cola and Titleist.
McIlroy, 27, finished 14th with $42.5 million. That included a $20 million chunk from equipment sponsor Nike but did not include the $10 million bonus he earned for winning the FedEx Cup in September. Still, his total left him ahead of the likes of quarterback Russell Wilson, singer Drake and tennis star Rafael Nadal.
Topping the list was Taylor Swift, who took in an estimated $170 million, followed by the band One Direction ($110 million) and soccer star Lionel Messi ($81.5 million).