How do you calculate a golfer's handicap?
A golfer's handicap is calculated by averaging the best 8 scores out of the last 20 rounds.
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.
### Instruction: How do you calculate a golfer's handicap?
### Input: 
### Response: A golfer's handicap is calculated by averaging the best 8 scores out of the last 20 rounds.