The Australian Claire Polosak said it was a "special day" when she made history by becoming the first female umpire to represent a one-day men's international.
The 31-year-old has refereed the World Division 2 World Division 2 final between the hosts Namibia and Oman over the weekend and admitted he would "sleep well" after his performance.
"It was a special day for everyone and I wanted to do the best I can," said Polosak.
"There was a bit of intensity out there, a bit of argy-bargy between the teams, but I nipped in the bud with a quiet word.
"Everyone responded well, there were no problems with the player's behavior".
Polosak is already present in 15 female ODI, the first in November 2016 between Australia and South Africa.
He also refereed the semi-final of the women's T20 World Cup in 2018 between England and India and four games at the 2017 Women's World Cup.
"I made a couple of big calls," added Saturday's game, which was won by Namibia with 145 points.
"I was surprised behind the scenes, lbws I was happy about. You never leave yourself completely happy but I'll sleep well tonight."
Polosak has already traced a track: it was the first woman to line up in a men's home game in Australia in her first A list match in Australia in 2017.
In December last year, she and her South Australian counterpart Eloise Sheridan became the first female referees to referee together during a professional match in Australia, when the Adelaide Strikers hosted the Melbourne Stars in the WBBL.