My husband also is diagnosed with MCI. And also golfs (age 72). I am so happy he leaves the house and that there is something he likes. He only golfs 9 holes. Not long enough!! My husband repeats questions and comments all day. And forgets instructions if I try to get him to help. Today I am getting him to help put a frame together. Finding things we can share surety limited. Eating, walking, watching streaming services. He was diagnosed through the MOCA test. And is 19 out of 30 so not far off Moderate cognitive impairment. Sorry I have nothing helpful to say re your husbands total recall of every shot played. I only wish mine played more and had more engagement with life outside the house.