talkSPORT have you covered with horse racing tips for Friday’s meetings at Doncaster for the St Leger Festival.Tom Lunn has gone through the racecard, form, going, race replays and much more to help guide your betting choices with horse racing tips on the day’s action.Today’s racing tips brought to you by talkSPORT’s tipster Tom LunnGETTYtalkSPORT BET Betting Offer – Get up to £30 in free bets – CLAIM HERE*Friday horse racing tipsDoncaster13:15 – Nabati 13/8 (1pt)14:25 – Sale Shark 6/1 each-way (1pt)15:00 – Caballo De Mar 13/8 (1pt)NabatiThe ground has dried for a potentially huge run from Rock Montreal who is closely contending the favouritism with Charlie Appleby’s Nabati, both of whom are owned by the powerhouse Godolphin.Rock Montreal holds a Group 1 entry in the Dewhurst and was set to take on the Group 3 Solario Stakes on his second run but was withdrawn due to the ground.However, punters are still fancying the thrice raced Nabati, who has also won twice to achieve a 104 rating.Rock Montreal is taking plenty of the bets and tips but he’s still a little too risky after just one run and I think Nabati is going to improve for the step up in trip.The Night Of Thunder colt should thrive over 7f and 1m, and having already placed a neck second in listed company over 6f there’s the expectation he’s going to press on further.Sale SharkThe Group 2 Flying Childer Stakes is a 5f sprint for two-year-olds which is the most unpredictable bunch of horses.They’re still inexperienced and unpredictable, albeit a fair few of them have over five runs under their belts already.The front two in the market have yet to even race over 5f and have instead got great form over 6f.Sale Shark is the one that appeals most at a decent each-way price, confirmed top 5f form, Oisin Murphy on board and that recent win was significant to show he can do it again.Caballo De MarTipped this horse for York last month and he couldn’t quite stay with the pack finishing nearly seven lengths behind the winner Al Nayyir in the end.It wasn’t quite the form expected and it would be ideal to see him back to the form shown in May today.He’s the big favourite too and certainly should be as the horse clear of the rest on ratings, carries top-weight but surely finds this easier.talkSPORT BET Boosted Favourites30 minutes before the start of every UK & IRE race, we are boosting either the favourite or 2nd fav to win!Get the latest price boosts here18+. Bet on a Price Boost market for specific horse race & if your selection wins, we’ll pay out at the boosted odds. Max benefit applies. Click for T&Cs. GambleAware.orgTom Lunn’s Horse Racing Profit & LossJuly 2026: 11.79ptsFrom June 2026: +20.52ptsFrom March 2025: +120.5ptsAll odds correct at time of writingtalkSPORT BET Betting Offer – Get up to £30 in free bets – CLAIM HERE*Commercial content notice: Taking one of the bookmaker offers featured in this article may result in a payment to talkSPORT. 18+. T&Cs apply.Remember to gamble responsiblyA responsible gambler is someone who:Establishes time and monetary limits before playingOnly gambles with money they can afford to loseNever chase their lossesDoesn’t gamble if they’re upset, angry or depressedGamcare – www.gamcare.org.ukFind our detailed guide on responsible gambling practices here.For help with a gambling problem, call the National Gambling Helpline on 0808 8020 133 or go to www.gamstop.co.uk to be excluded from all UK-regulated gambling websites.*18+ New customers only. Opt in deposit and bet min £10 (max £30) on any sports (odds 2.00+) within 7 days. Get your initial stake (up to £30) credited in Free Bets. Free Bets to be used on selected markets and expire in 7 days. Scroll Down for T&Cs. GambleAware.org | Please gamble responsibly