i play tennis better than he does对吗？

i play tennis better than he does对吗？

对的。

better是形容词good和副词well的比较级。

我打网球很好。

I play tennis well

well修饰动词 play，我打网球比他打得好。他们使用比较级，前后时态一致，所以这句话可以说是

I play tennis better than he/ him也可以为：

I play tennis better than he does.