Cheltenham racecourse has cancelled its remaining three race days this season in order to begin immediate upgrades on the home straight.The improvements will be made on the drainage systems with work to take place immediately to ensure it will be ready for the new season for its first fixture in October.The home straight at Cheltenham racecourse is renownedAFPtalkSPORT BET Betting Offer – Get up to £35 matched if your first best loses – CLAIM HERE*The ground was a major talking point across the Cheltenham Festival this year.Willie Mullins pulled Fact To File from the Ryanair Chase in last minute decision due to quick ground.Both owner, JP McManus and trainer Mullins were somewhat critical of the conditions on the Thursday meeting.March saw a particularly and unexpectedly dry couple of weeks leading up to Cheltenham Festival this year.On Trials Day in January, a bizarre hole appeared on the home straight, where the drainage system is to be upgraded, which caused a delay to the final race and prompted safety investigations.It was reportedly due to a broken and collapsed drain pipe which resulted in ground staff having to move the railings to avoid the hole.Jockeys and trainers all gave the go ahead to continue the last race, but now the course have made the decision to begin major works to upgrade the systems in part of the home straight.Key races rescheduledThe fixtures that have been cancelled are: the two-day April Meeting which were set for April 15-16 and the Hunter Chase card on May 1.Four big races have had to be rescheduled and therefore moved to other tracks and meetings.The Mares Novices Handicap Chase, a Class 1 contest has been moved to Market Rasen on April 14.The Challenger Mares’ Chase Series Final Handicap Chase and the Challenger Mares’ Hurdle Series Final Handicap Hurdle has been rescheduled to be part of Warwick’s card on April 23.Finally, the Fillies’ Juvenile Handicap Hurdle has been rescheduled for Sandown’s Jump Finale day on April 25.Jon Pullin, Clerk of the Course, said: “Our priority is always to provide the best possible racing surface for top-class Jump racing.“Throughout the very wet winter, we have experienced a number of issues on the track and working with drainage experts, we have identified an area that would benefit from being upgraded. “This will allow us to address the issues that we believe contributed to the hole appearing on Festival Trials Day and subsequently created challenges in other areas of the track. “As a result of this we moved rail and hurdle positions to ensure we were providing the best surface for both the Old and New courses. “While some sections of drains across the track are newer than others and drainage improvements like this are typically carried out at the end of each season, given the scale of this project and the last two particularly dry summers we have decided to bring this work forward.“This will mean that there is still sufficient moisture in the ground allowing more time for the course to recover ahead of next season.”talkSPORT BET Betting Offer – Get up to £35 matched if your first best loses – 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. GambleAware.orgRemember 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.ukGambleAware – www.gambleaware.orgFind 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. Opt in and bet up to £35 on Horse Racing (odds 2/1+) within 7 days. If your first bet loses get your initial stake back, up to £35 in Free Bets for any sports. Free Bets expire in 7 days. Scroll down for T&Cs. GambleAware.org | Please gamble responsibly