It fell to Max Chilton - on the last flying lap of the day, over a minute after the chequered flag had come out - to finally set the fastest lap of the day with a time of 1:28.980s, a slender 0.023s ahead of Calado to claim pole for the first time in his GP2 career.
However, Calado will not be starting alongside him on the front row of the grid for the feature race: he had earlier incurred a two-place starting grid penalty for Saturday afternoon after he was deemed to have blocked Felipe Nasr in the morning practice session. A clearly unhappy Calado had posted some scathing comments about the decision on Twitter, before having second thoughts and quickly deleting them.
Chilton will instead find himself duelling with Valsecchi down to turn one in the race, while Calado will line up on the second row of the grid in fourth place alongside Jolyon Palmer. Luiz Razia and Giedo van der Garde start from the third row.
The 39-lap feature race 1 on Saturday afternoon is scheduled to get underway at 2.40pm after Grand Prix qualifying, and the Sunday morning 28-lap sprint race 2 at 9.35am. All sessions are scheduled to be shown live on Sky Sports F1
Full qualifying times