As per 2023, which team hold the record for most losses in PSL?

As per 2023, which team hold the record for most losses in PSL?

Explanation

On 16 March 2023Peshawar Zalmi became first team to complete 50 wins in the history of Pakistan Super League (PSL).

Peshawar Zalmi 

became the first team of PSL to complete their 50 wins in 92 matches. 

The record for the most losses in the PSL history is held by the Karachi Kings as they have suffered defeat in 50 matches in 85 matches.