Clive Cox believes Electrolyser is still improving ahead of his assignment in the Doncaster Cup on Friday.
The five-year-old progressed through the handicap ranks last season and has proved this year that he is not out of his depth in Pattern company, with solid efforts in the Sagaro Stakes, Goodwood Cup and the Lonsdale Cup.
"Electrolyser is very much on course for the Doncaster Cup. He has come out the York race very well and we have been thrilled with his performances so far this year. Hopefully, it won't be long before he takes one of these big staying races," said Cox.
"He improved on his form with Illustrious Blue, who beat him at Goodwood, in the Lonsdale and I would be hopeful that he is still on an upward curve.
"The only time that he has previously raced over two and a quarter miles was in last year's Cesarewitch but that was a non-event. He got very badly hampered coming round the bend at Newmarket and was very lucky not to fall, which was the end of the race for him.
"He has been running really well over two miles so far this season and I am hopeful he will get the trip."
