Marcus Harris and Will Pucovski broke the 30-year record held by Mark Waugh and Steve Waugh for the highest partnership in Sheffield Shield history as their monumental opening stand extended to 486 on the third day against South Australia.

The pair resumed on 0 for 418 with Pucovski on 199. He reached his second double century off the first ball of the day as he and Harris moved briskly up the records charts.

Harris was dropped at slip by Callum Ferguson with the score on 436 and it was his cover drive which took the stand to 465, surpassing the Waugh-Waugh landmark which was made against Western Australia at the WACA in 1990-91.

As attention turned to the all-time first-class partnership lists and a 500-stand loomed, South Australia finally ended the stand when Harris gloved a short ball to the keeper.

Pucovski, opening for the first time in first-class cricket, finished unbeaten on a career-best 255 when Victoria declared on 3 for 569.