The Qipco Champion Stakes will be run on the normal outer track after Ascot scrapped plans to run the 10-furlong showpiece on the inner course.
Officials at the Berkshire track have decided to switch the race back to the normal course following the latest weather forecast that suggests less rain is expected than previously forecast between now and Saturday.
The going on the outer track was described as good, good to soft on Wednesday, while it is good to firm, firm in places on the inner.
With only about five millimetres of rain now due, clerk of the course Chris Stickels does not expect conditions to alter significantly.
He said: "We had 1.5mm of rain on Wednesday morning. The forecast doesn't look like we've got much rain to come.
"We may get between 2-5mm but that won't affect that inner track too much. The outer track at the moment is good, good to soft in places.
"As we suggested last week, if such conditions prevailed we'd switch it back.
"The weather forecast models have been changing a little bit daily, but there is more confidence in Saturday being a fairly dry day. They may be possible occasional showers.
"We may get a few showers on Friday, but we're talking 1-5mm.
"If we get the top end of what we are forecast there may be more good to soft, but the ground should be fairly similar to what it is now."