Stu McCullum was in the stands when his son scored a triple-century, but much more than one individual milestone stands out when reflecting on Brendon's career with the Black Caps.
With that career coming to an end after the second test against Australia, which starts next Saturday in Christchurch, Stu will again be present to watch Brendon's last appearance for his country.
And what he will witness - a united New Zealand team, playing with the spirit of their skipper and standing toe to toe with the world's best - is what makes Stu such a proud dad.
"The 302 was very special because it had never been done before," Stu told Newstalk ZB. "But the adversity of what was happening right from South Africa (45 all out in Brendon's first test as captain), and prior to that with all the captaincy issues, to see how the team have gelled and how happy they are, and how much they play for each other and the country is probably the proudest thing.