If outlier status as a sportsman makes the GOATest GOAT, sorry Gretzky, but you’re second to the Don. Sir Donald Bradman averaged 99.94 in a 20 year career as a test cricket batsman. This is in a sport where only 4 other people even pass 60, and no other passes 62. Bradman even averaged 56 in a series where the opponents create a now-banned strategy specifically to thwart his dominance.
At more than 50% above number 2, the Don is the GOATest GOAT.