Belt filed for $7.5 million, more than doubling the $3.6 million he earned last season. The Giants submitted a figure of $5.3 million.
Belt, who turns 28 on April 20, hit .280/.356/.478 with career highs in home runs (18) and RBIs (68) in 2015. He is a .271 career hitter in five seasons, all with the Giants.
Cash Kruth is a reporter for MLB.com. Follow him on Twitter at @cashkruth. This story was not subject to the approval of Major League Baseball or its clubs.