sporting chance
noun [ S ] uk/ˌspɔː.tɪŋ ˈtʃɑːns/ us/ˌspɔːrt.ɪŋ ˈtʃæns/
（可能）成功的机会
If there is a sporting chance that something good will happen, it is possible that it will happen.
It's not definite that they'll accept our offer, but there's a sporting chance. 不能肯定他们一定会接受我们的报价，不过还是有可能的。