Since their team has won the match today, it will certainly have a place in the Cup final.

1) Winning the match today has ensured their team a place in the Cup final.

2) Winning the match today will ensure their team a place in the Cup final.

【答】只需看原句和转换后的两句的表意作用，即可。

原句：Since their team has won the match today——说明已经赢得比赛。

certainly have a place：肯定有一席之地。

原句的主从句都已经明确：进入决赛。

句1：Winning the match today has ensured their team a place in the Cup final.实际等于：They have won the match, and it has ensured their team a place in the Cup final. 含义接近于Since their team has won the match today, it will certainly have a place in the Cup final.

现在完成时has ensured 表达两层意思，

（1）ensure 已经发生；

（2）对现在产生的影响。——为他们代表队确保了一席之地。

句2：Winning the match today will ensure their team a place in the Cup final.实际等于：If the team wins the match today, it will ensure their team a place in the Cup final.（典型的条件句，说明事件尚未发生及其可能性。）

【说明】句1和句2的主语，同是 Winning the match today，由于谓语时态不同，意思也大不相同。句1的Winning the match today 说明已经发生，句2的Winning the match today 意味着尚未发生。