Originally Posted by FlyerBeek

In my experience, this will not work and will lead to a rejection of the BRG request. Per IHG's BRG T&Cs, the lower rate must be "compared with the IHG hotel's lowest available rate on IHG websites." By adding a breakfast option on the IHG webpage, you're no longer comparing with the lowest available IHG rate. YMMV, but I've personally tried and have not had success with this scenario.

-FlyerBeek