Marsha, right, wins in good style at Dundalk© Photo Healy Racing
Marsha was sent off the well backed 8/15 favourite for Dundalk's opener and she didn't disappoint her supporters as she blitzed her five rivals.
The British raider, trained by Sir Mark Prescott Bt, was dropping back in trip for this five furlong race after two runs over six furlongs that yielded a second place in Kempton and a win at Catterick.
She broke nicely under Declan McDonogh to track the trailblazing Dr Doro as Rebeccas Charm completely missed the break on her debut.
Marsha took over at the two pole and readily asserted with over a furlong to race. She powered away from Go Kart (7/1) who could make no impression in second. There was three and a quarter lengths between the pair at the line.
Declan McDonogh said: "She's speedy and Sir Mark said to take a lead if you can. Wayne's horse (Dr Doro) stopped quick but when I asked her she picked up really well.
"She could make up into a Stakes filly. Sir Mark said he thought five is better than six for her. She is a big, strong filly."
Marsha was backed from 11/10 to 4/6 during the day.
Sweetie Jar was a non runner due to coughing.
Additional reporting by Alan Magee
