At its mid-point, the race had no clear winner.

赛跑进行到一半时尚难分胜负。

《牛津词典》

I see no clear winner in this debate.

在这个辩论中我没看到谁胜谁负。

youdao

It would be nice to declare a winner here, but right now, there is no clear winner.

在这里宣布一下谁是胜出者当然好，但是现在，还没有明显的赢家。

youdao

There was no clear winner. And five months later there is still no agreement on a coalition government.

VOA: special.2010.08.07

If there is no clear winner, a second round of voting will take place, probably on 11 April.

BBC: Kenya elections: Electronic system slows count

The controversy comes weeks after the PDL did better than expected in a general election that provided no clear winner.

BBC: Silvio Berlusconi (28 February 2011)

LOUIS, Missouri (CNN) -- There was no clear winner of the second presidential debate, a poll taken late Friday suggests.

CNN: Poll: Bush, Kerry even in 2nd debate