Cincinnati and the Beatles / Bobby Hebb 1966 Schedule 18 shows in August of 1966 *Bobby Hebb and the other acts performed in Cincinnati on the 20th, the Beatles played the next day on the 21st due to rain.

The Beatles staged their third and final concert tour of North America in August 1966. It consisted of 18 performances, with 16 shows in United States venues and two in Canada.

*Bobby Hebb and the other acts performed in Cincinnati on the 20th, the Beatles played the next day on the 21st due to rain.

https://en.wikipedia.org/wiki/The_Beatles%27_1966_US_tour 

Bobby did perform on the 20th of August in Cincinnati ....the Beatles performed the next day The support acts on The Beatles’ final tour – The Remains, Bobby Hebb, The Cyrkle, and The Ronettes – had all performed the day before, prior to the downpour beginning. The Beatles were the only act to play on this day, after which they flew 341 miles to St Louis, Missouri to perform an evening concert. https://www.beatlesbible.com/1966/08/21/live-crosley-field-cincinnati/

I missed out on the Cincinnati date as it was a rainout and a matinee was held the next day, correcting the info: The Beatles played in Cincinnati on August 21, 1966, at Crosley Field after a previous night's rainout forced the concert to be rescheduled. The noon performance was a matinee makeup show due to the initial August 20th concert being postponed because of a severe thunderstorm and the risk of electrocution from the wet electrical equipment on stage. This performance, along with a subsequent rainy show in St. Louis, contributed to Paul McCartney's decision for The Beatles to stop touring.