Donn is one of the most highly respected British and Irish horse racing commentators of his time. Starting his career in racing journalism for the Sunday Independent in 1993 he was awarded the Martin Wills Award for racing writing the same year. He is now chief racing writer with the Sunday Times in Ireland, and he writes a weekly column for the Irish Field, Ireland’s preeminent racing publication.

In 2011, Donn assisted 19-time champion National Hunt jockey AP McCoy in writing his autobiography, which was shortlisted for the 2011 William Hill Irish Sports Book of the Year award.  Donn has also ghost-written three other best-selling books – Better Than Sex, the autobiography of Mick Fitzgerald, Moscow Flyer, with trainer Jessica Harrington, and Riding the Storm, Timmy Murphy’s autobiography.

He has worked for some of the leading broadcasters in Britain and Ireland, including Channel 4, BBC, RTE, TV3, TG4 and Sky.  His depth of racing knowledge and easy presentation style ensures that he is the go-to man for many mainstream broadcasters for racing news stories and in the lead up to major racing events.  He has ridden in charity horse races at Punchestown and Fairyhouse and, winner of the 2010 Racing Post Ten To Follow tipping competition, in which there were over 20,000 entries, followers of his betting advice continue to show a healthy profit.

Donn has been a guest speaker or a panellist on events run by a host of diverse organisations, from Ulster Bank and Residence Members Club to Direct Aid For Africa and Paddy Power bookmakers.  He has contributed to, and been involved in the production of, several racing documentaries, including Power In The Blood, Jim Bolger – Master of Cool, Mick Kinane – It’s written in the Stars, Shergar, and the IFTA-nominated Jump Boys.  He has a weekly betting and racing slot on Newstalk Radio, he is a frequent contributor to Racing UK, both as a broadcaster and as a blogger, and he is a regular guest on Channel 4’s Saturday morning racing show, The Morning Line.