Add a discount price with a Minimum Duration to a price variant. Once a booking is at least that long, the lower hourly rate applies to the whole booking.
Steps
Go to Settings → Price Lists and open your price list.
Click ⋮ on the price variant, then Edit.
In Prices, under Discounted prices, click Add discount price.
In Cohorts, choose who gets the discount, or leave it as All players to give it to everyone.
In Minimum Duration, choose the length, for example 90 min.
In Hourly Rate, enter the discounted price per hour.
Click Save.
Example: your normal price is £20 per hour and you add £16 per hour for bookings of 90 minutes or more. A 60-minute booking costs £20 and a 90-minute booking costs 1.5 × £16 = £24.
Warning: the "All players" default row
A new discount row starts with no cohort selected (shown as All players), Any duration and an hourly rate of 0. If you save it like that, that variant becomes free for everyone. Always set the Minimum Duration and Hourly Rate, and delete rows you don't need with the bin icon.
Good to know
The rate applies to the whole booking once it reaches the minimum, not only to the extra minutes.
The Minimum Duration options run from your minimum booking length + 30 minutes up to your maximum booking length, in 30-minute steps. You set these lengths under Settings → Rules & Limits → Booking Rules.
Each player pays the lowest price they qualify for. A discount rate higher than the normal price is never used.
If a special period price list is active on the court, add the discount there too.