Last non-BC race to have three horses coming in off G1 wins?

[SniperSB23]

So anyone have any idea of the last non-BC race where there have been three horses coming in off G1 wins? I'm guessing it was when 3yo restricted horses met elders so am also curious when the last time it happened with all horses winning in unrestricted race. Also, last time we've had 5 G1 winners in a non-BC field? Hopefully the weather cooperates and the Sword Dancer takes place cause it has the potential to be one of the better races we've had in a few years.