Top Flat jockey Frankie Dettori will tomorrow (Wednesday 1 July) be joining former National Hunt champion jockey Richard Dunwoody as he continues his 1,000 mile walk.

Richard will tomorrow walk his 750th mile, joined by Frankie at 12.40pm in Newmarket.

And Frankie, known for his cheeky Italian charm, is even claiming he may try and break the fastest mile time of 13mins 2 seconds — set by former jockey Declan Murphy.

“But Declan is bigger than me so it may not be possible!” he said.

On Friday (3 July) Richard will be joined by former jump jockey JP McNamara who was told he might never walk again after a bad fall three years ago. He will be attempting ten miles.

Paul Stewart, son of Andy Stewart – owner of racehorses including Grand National favourite My Will, will also be walking with Richard on Friday.

Paul, who broke his back in a snowboarding accident last December after falling 240ft off a cliff, will be walking a mile for Spinal Research.

Last week his father, Andy, told the Racing Post that Paul was hoping to complete the mile in about 45 minutes.

Richard is due to finish his 1,000 Mile Challenge on 10 July and is walking in aid of Alzheimer’s Society, Racing Welfare, SPARKS and Spinal Research.

His progress and photos and news updates can be found on the website plus on Facebook (Richard Dunwoody-Challenge) and Twitter