BAR (Best Available Rate)
In shortBAR (Best Available Rate) is the lowest flexible rate a hotel offers publicly for a given night, with no membership, code or prepayment condition.
A hotel's other rates are often derived from BAR: the non-refundable rate a set percentage below, the breakfast rate a set amount above. BAR is therefore the reference point of the rate structure.
The price a guest sees on an OTA can differ from BAR: member discounts (such as Genius), mobile rates and promotions lower the displayed price. In competitor comparisons, it matters which price was read.
In Optima Radar
Radar reads the price displayed to guests on Booking.com. On nights with a Genius or promotional discount this can be lower than the hotel's BAR; the discount type is flagged separately.