Looks like Malcom is on JGR with a bunch of individual sponsors.
Malcolm in for Oakland with JGR
http://racerxonline.com/2018/02/01/malcolm-stewarts-fill-in-role-to-continue-with-autotraderyoshimura-suzuki
18 Yamaha YZ450F
94 Honda CR 500
90 Honda CR 500
81 Yamaha SR 500
68 BSA Thunderbolt
69 Triumph Tiger 100
I think its all marketing strategy in keeping JGR's name in everyones mouth every week by having people wondering about the next round even if its a done deal by now.