Aoife O'Sullivan was leading the style charge at Mallow Racecourse in Cork on Friday.
The former Miss Ireland, who is expecting her first child with hubby Colm Spillane, acted as a judge in the Best Dressed competition and was looking better than ever in one of summer's biggest trends.
She wore a chic black and white polka dot dress with a fitted, sleeveless top section.
The real drama in the dress came from the wide full skirt, which has a drop waist, ticking off another major summer trend.
Aoife styled up her elegant look with a black and white feathered hat and black court shoes. It's not clear when Aoife snapped up her race day dress, but Pretty Little Thing has a similar style.
If you're keen to recreate Aofe's look, the dress is currently on sale for €45.50, marked down from €70 and available to buy here.
Speaking at the event, Aoife revealed that she had spotted the Best Dressed winner within minutes of arriving at the racecourse.
The prize on the day went to Gillian Kelleher. Commenting on why Gillian was the winner, Aoife said: 'Her outfit is absolutely stunning, she looks beautiful in this fine weather today.'
Gillian's outfit consisted of an ice blue with a full skirt, sheer sleeves, and a vibrant pink floral print, which she coordinated with her hat.
Aoife was joined at the racecourse by her parents Michael and Liz, with Liz opting for a chic navy dress on the day styled with gold shoes.
Aoife's appearance at the races comes after she revealed the gender of her baby recently.
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