What is the best way to combine sentences 20 and 21?

(20) That day we played checkers.
(21) I’ve had a good season.

A. Playing checkers made me have a good season.
B. Although I’ve had a good season, that day we played checkers.
C. That day we played checkers because I’ve had a good season.
D. Since that day we played checkers, I’ve had a good season.