ROGER Charlton is keeping a close eye on developments on the classic front this season as the unbeaten Quadrilateral waits for her chance in the Qipco 1000 Guineas.

The Fillies’ Mile winner has headed the ante-post market for the Newmarket showpiece all through the winter, but when she will go for glory remains up in the air, although a “best-case scenario” from the British Horseracing Authority outlined provisional plans for the Guineas to be staged in early June and the Derby and Oaks in early July.