Workington Comets and high-flying Ipswich Witches arrive at Armadale on Friday for a double-header.
Comets, who are eighth in the ten-strong league, will have former Monarchs skipper Craig Cook in their line-up.
And Witches, who are second top of the SGB Championship, have named Danny King and former Monarchs favourite, Rory Schlein, in their squad.
Monarchs bosses remind fans that the gates will open at 6.15pm – 15 minutes earlier than usual – and the 30 heats of racing start at 7pm.
Meanwhile, Edinburgh Monarchs racer Mark Riss top scored with 11 points for Premiership side Wolverhampton Wolves as they beat King’s Lynn 48-24.
And Berwick Bandits No 1 Nick Morris was best with 12 points for Swindon Robins in their 52-38 defeat at Wolverhampton.
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