 Murfee was drafted by the Seattle Mariners in the 33rd round, with the 988th overall selection, of the 2018 Major League baseball (MLB) draft.He spent the 2018 season with the Everett AquaSox, going 3–2 with a 6.55 ERA over 33 innings.In 2019, he split between the Modesto Nuts, Arkansas Travelers, and Tacoma Rainiers, going a combined 6–5 with a 3.57 ERA and 136 strikeouts over innings.