 Ladas was sent to Doncaster for the St Leger on 12 September in an attempt to win the Triple Crown. Ridden by Tommy Loates, Ladas started at odds of 10 / 11 (0.9 / 1) in a field of eight, with Matchbox (ridden by Watts) the second choice on 2 / 1 and the filly Throstle ignored on 50 / 1. As usual, Ladas was held up at the back of the field as, at first Throstle, then a horse named Legal Tender, then Matchbox made the running. Ladas moved steadily closer and turned into the straight in second, before overtaking Matchbox and going into a clear lead. In the final furlong, however, he was challenged by Throstle, and in the closing stages the latter pulled ahead to win by three quarters of a length. According to The Sportsman, the cheers of the crowd were replaced by those of the bookmakers as the outsider overhauled the favourite.
