The Keeping Up with the Kardashians star donned a short blue dress and pointed white shoes at the event.
The Jumanji star wore a flowing red dress and matching red heels.
The comedian kept things casual in pants and a blazer, but Wilde glowed in her light blue wide-legged suit.
The future Harley Quinn went with a matching two-piece outfit with various patterns.
The This Is Us star and his wife both opted for cool colors and patterns at the polo game.
Wilmer Valderrama looked cool and cozy in a turtleneck and blazer.
Dr. Grey looks red-hot in her long-sleeve dress and casual white kicks.
The Crazy Rich Asians star kept it classy in his black and white jacket over his white shirt and pants.
The This Is Us star was all smiles at the Polo Classic.
The Magicians actress stunned in a blue and green halter dress at the Polo Classic.
The Westworld actress was a vision in roses at the Polo Classic.
The Pitch Perfect star looked aca-awesome in a long black dress.
The Jack Ryan star kept it cool and seasonal in a black dress with a leaf print.
The model was a vision in violet while rocking a long dress.
The model kept it classic with black and white tones at the Veuve Clicquot Polo Classic.
The Victorious star opted for a one-shoulder Aje Olearia dress at the polo event.
The actress wore a black and white plaid pattern in a matching two-piece outfit to the event.