Nick Luck is at Kempton, and Alice Plunkett at Chepstow to introduce the final day of Channel 4 Racing. The big race of the day is the Welsh National in which the Kerry Lee trained Mountainous is looking to make history by landing the contest for an unprecedented third time. At Kempton, the highlight is the Desert Orchid Chase named after the remarkable grey, who was so popular and successful at the South London track. Also, after 30 years of Channel 4 Racing, Nick and the team look back on their favourite moments and some of the great names, equine and human, that have graced the sport during that time. Kempton Park: 1.45, 2.20 and 3.30pm. Chepstow: 1.25, 2.00, 2.40 and 3.15pm. Presenters: Nick Luck and Alice Plunkett.