The 2015 Champion Bumper hero has not been seen since finishing sixth in a Grade One at Aintree in April, after suffering a bout of colic in the summer.
Pipe said: "Moon Racer is still going well at present. He is in the Betfair, whether he will be ready for that will be down to the wire. He is looking well, though."
He added: "The trouble is he is nine now and we all get a bit slower with age, most of us do anyway."
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