As of 2020, who is the only cricketer to score 500 runs in an innings?

peppers, An innings is singular and plural. A match has a first innings and a second innings, for one side. Side A has their first batting innings, then Side B has their first batting innings, then side A has their second batting innings, then side B has their second batting innings. 4 innings in total. one innings, two innings. inning is not used. Nor is inningses.

Is it inning, instead of innings? I would think if it were plural you would specify the number. However I know nothing about Cricket.