In 2009, Dobbin moved to her current base, Hazelriggs Stables in Chatton, near Alnwick, Northumberland which, together with her husband, she has substantially renovated and improved over the years. She saddled her first winner, Mirage Dore, in a beginners' chase at Market Rasen in January, 2010; Dobbin had ridden the same horse into second place in the Coral Cup at the 2009 Cheltenham Festival for previous trainer Lucinda Russell.
Dobbin enjoyed her first big race victories in February, 2016, when Jonniesofa won the Grade 2 Prestige Novices' Hurdle at Haydock and Rocking Blues won the Eider at Newcastle within the space of seven days. She achieved her most successful season so far in 2017/18, with 25 winners and over £203,000 in prize money. However, in 2018/19, her seasonal tally dropped to just seven winners and, in the summer of 2019, she was forced to close down her training operation completely after the yard was struck by a respiratory virus. Nevertheless, she saddled another big race winner, Bigirononhiship, in the Scottish Borders National in 2019 and increased her seasonal tally to 10 in 2019/20 and 21 in 2020/21.