The challenge of appearing on a cricket pitch in front of a large crowd did not faze her much, as she was used to being the centre of attention while performing as a cheerleader. Her mum, Rebecca, runs the Bay Twisters cheerleading team.
Mrs Grigson said she had entered her daughter's name into an online competition to win the coin-toss job. She understood that Brooklyn would have her photo taken with the team captains before going onto the pitch with them for the coin toss.
Today's game is notable for the return of Trent Boult to his home ground after being rested for Tuesday's Twenty20 series opener in Napier.
Boult told the Bay of Plenty Times he was "raring to get back into it".
Bangladesh are yet to win a game on the current tour of New Zealand after losing the one-day international series 3-0 and Tuesday's Twenty20 game.
The weather during today's match is expected to be around 21C and overcast.
Blackcaps v Bangladesh
What: International Twenty-20 cricket
Where: Bay Oval, Mt Maunganui
When: Today, 3pm start
Tickets: premier.ticketek.co.nz