Champion mare Winx has claimed her 19th consecutive victory by winning at Sydney’s Royal Randwick on Saturday.

She has already eclipsed Phar Lap’s record of 14 on the trot and is closing in on Black Caviar’s all-time mark of 25.

After winning the Tattersalls Club $250,000 Chelmsford Stakes over 1600 metres, Jockey Hughman said he was “lost for words”.

“What she did today was just incredible.

“When she hit the after-burners at the 150-metre mark, I can’t explain the feeling,” he said on his way back to the mounting yard amid huge cheers from the crowd.

Winx @cwallerracing and @HugeBowman do it again!! 19 straight for The mighty Mare in the Tattersalls Chelmsford Stakes 👏🏼 @royalrandwick pic.twitter.com/luFCI0Uizc

— Australian Turf Club (@aus_turf_club) September 2, 2017

In what was described by the race calleer as a  “cool, calm and collected ride”, Winx won by a length from Red Excitement and Chocante.

Compared to the sport’s greats like Black Caviar and Phar Lap, whose stride length close to 8.5 metres, every minute Winx is in full motion she takes 170 strides – 30 more than the average racehorse, with each one about seven metres in length, the ABC reported on Friday.

“Many think the horse with a bigger stride will always win,” Dr Graeme Putt, a University of Auckland academic who has studied what makes a racehorse a winner.

The secret to her success is all in a freakish stride rate, which can increase in the dying stages of a race as other horses taper off.