This tournament in Hong Kong is expected to have up to 9000 spectators for the finals. I wonder if that is close to an all-time record for in-person attendance at one time for any cue sports event. (Some tournaments go on for more than a week and might have higher total spectator-days racked up.)
wst.tv

All-Time Crowd Record Set To Be Smashed - World Snooker
The Hong Kong Masters 2022 is expected to set new records for the biggest ever snooker crowd this week. The current record for the sport’s biggest live audience is 3,000, set at the Hong Kong Masters in 2017. But that is set to be shattered this week with crowds of up to 9,000 anticipated...