Today is the fourth and final day of the Cheltenham Festival – and it’s Gold Cup day.

It’s the highlight of a special week which has seen the festival celebrating its 100th anniversary.

Enthusiasts are hoping for a classic race as the field includes three former winners of the trophy – the first time this has happened since 1958.

Yesterday more than 55,000 racegoers turned out to celebrate St Patrick’s Day at Prestbury Park – the biggest crowd seen at Cheltenham Festival Thursday for some years. Among those enjoying the races were Princess Anne and her daughter equestrian Zara Phillips.

Looking through the archives of glorious past winners, the greatest Cheltenham Gold Cup horse in the eyes of most racing enthusiasts is Arkle. Known to his Irish fans simply as “Himself”, he took home the trophy in 1964, 1965 and 1966.