1 of 2 | Chip Honcho, seen working out before the Preakness Stakes, returns to action in Saturday's Ohio Derby at Thistledown. Photo courtesy of Maryland Jockey Club

June 19 (UPI) -- While Royal Ascot was hosting some of the season's most epic battles this week, American racing prepared for a weekend that features the Grade III Ohio Derby at Thistledown and the Grade II Chicago Stakes at Churchill Downs.

Here's the scoop ...

Royal Ascot

Trainer Aidan O'Brien notched his 100th Royal Ascot victory in Thursday's Group 1 Gold Cup as 4-year-old Scandinavia caught 8-year-old pacesetting favorite and defending champion Trawlerman in the final strides to win by a head. Even the losing camp admitted the race was a classic thriller.