While mummy Zara Phillips was busy at the point-to-point event – for which she trains horses – Mike was looking after their little girl.
The sportsman was spotted pushing Mia – who was born on January 17 – through the mud in her pram, which luckily had hefty wheels perfect for off road situations.
The multi-tasking dad had one hand on the buggy and in the other, the lead of the couple's boxer dog.
He was returning the favour from earlier in the day, when Zara had taken charge of Mia while he worked – captaining his rugby team Gloucester to a 40-33 victory over Newcastle Falcons.
New parents Zara and Mike seem to be taking baby life in their stride, managing to combine looking after Mia with their busy careers. It helps, says Zara, that their new arrival is so easy going.
"As Friday's child, Mia's supposed to loving and giving," Zara told HELLO! in the exclusive interview accompanying their first family photoshoot. "She's pretty relaxed and happy so far. She's cool, but then perhaps all parents say that."
Of course, if Zara wants any parenting tips, she need only ask her brother, dad-of-two Peter Phillips. The 36-year-old was at the equestrian event – which takes place on their mum Princess Anne's Gatcomb Park Gloucestershire estate the previous day.
He was joined by his wife Autumn Phillips and the couple's cute daughters Savannah, three, and one-year-old Isla.
The little girls looked to be thoroughly enjoying the family outing. Savannah, who is the Queen's eldest great-grandchild, is growing up to be a boisterous little girl and spent most of the day running around in the sunshine with the family's black Labrador.