Zara Tindall was forced to go into mum mode after her son, Lucas, swung on metal handlebars and shouted during the races.
The youngster got into the action alongside his family as he held onto the steel railing and yelled ecstatically.
At one point, the toddler tried to climb the glass walls, prompting his sister, Lena, to intervene.
Lucas was soon stopped by his mother after swinging around, which the four-year-old did not look too pleased about.
Zara had to go into mum mode at the races
|GETTY
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Zara and Mike Tindall brought Lucas and their two other children, 11-year-old Mia, and seven-year-old Lena to the famous venue.
The couple were also joined by their nieces, Savannah and Isla Phillips.
Zara arrived at the venue wearing a double-breasted L'agence wool coat featuring light brown and beige tweed with subtle green and orange accents woven through the fabric.
Underneath the fashionable exterior, she chose a chocolate brown polo neck dress, cinched at the waist with a matching belt that complemented the coat's pattern.
Lucas was seen getting into the action
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Lucas was told off by his mum for swinging on metal handlebars
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Her accessories enhanced the look with a custom teal velvet headband from Camilla Rose Millinery, which sat atop her head, complemented by brown leather Fairfax and Favour heeled boots.
A Jockey Club name badge bearing her name was pinned neatly to her lapel.
Peter and Autumn Phillips' daughters travelled to join their Tindall cousins for the action.
Savannah, 15, Princess Anne's eldest grandchild, was photographed beaming on the balcony.
Lucas was joined by his sisters Mia and Lena at the races
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Her younger sister, Isla, 13, wrapped up in a navy and grey checked scarf over a lengthy black coat, accessorising with gold earrings and a matching necklace.
The Tindalls' appearance comes ahead of a busy start to the new year for the couple, with Zara set to travel to Australia in January for the Magic Millions Carnival on the Gold Coast.
The event has become a regular fixture for Zara, who is expected to take part in the polo component of the festival at Doug Jennings Park, Main Beach, on Sunday, January 11, 2026.
The wider Magic Millions Carnival runs across mid-January and blends racing, sales and social events, with the polo and showjumping day acting as one of the early headline moments.
The four-year-old cheered as he watched the races
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This year's polo line-up includes Argentine star Nacho Figueras, a close friend of Prince Harry, who is listed among the leading players for the event.
Zara is expected to play against Mr Figueras, adding an eye-catching subplot to a trip which already attracts significant attention because of its royal attendees and the Tindalls' long-standing links to the equestrian world.
The Magic Millions Australia visit has become a recurring engagement for Zara and Mike, combining the mother-of-three's sporting commitments with a broader schedule of appearances across the carnival.
It is also one of the most internationally visible sporting events Zara participates in throughout the year, placing her alongside elite competitors in a setting that attracts a mix of sporting figures, sponsors, and celebrity guests.
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