Bangladesh head coach Phil Simmons has described the nine-wicket win over Australia in Darwin as the biggest of his Test coaching career, comparing the scale of celebrations back home to those seen during Argentina's World Cup match days.

Bangladesh dominated every session in Darwin, with runs, wickets and moments piling up across four days that will stay etched in the memory of the country's cricket supporters.

The victory seemed to announce to the wider cricketing world that Bangladesh know how to play Test cricket, and know how to play it very well.

Speaking in an interview with RevSportz, Simmons said the reaction from Bangladeshi fans was something he could barely put into words.

"We were comparing it a little bit to when Argentina won games in the World Cup because the streets in Dhaka were unbelievable during the World Cup. Some people didn't believe that it could happen, especially on this tour. I can imagine what it's like for Bangladesh people because I know what it's like for me."

Simmons, who took charge of the Test side in October 2024 after Bangladesh's 2-0 series win in Pakistan and went on to whitewash Pakistan at home, called Darwin the standout achievement of his coaching career.

"This will certainly be the biggest moment in Bangladesh's cricket history, beating Australia in Australia. I came here with the West Indies, and we couldn't beat Australia. So this means a lot to me because of the way we worked as a team, especially the hard work we put in after the 54 runs in the warm-up match."

The result added to a run of notable overseas victories Bangladesh have built in recent years, results Simmons believes are shifting perceptions of the side away from home.

Bangladesh's Test win in Jamaica, their famous victory in Mount Maunganui, and back-to-back Test wins in Rawalpindi have all joined Darwin among the achievements now written into the team's history.

Managing emotion through the highs and lows of the match had been a central message from the coaching staff.

"The biggest thing is controlling emotions. Many times, after taking four or five wickets in the morning, we remain affected by that. This time we tried to ensure that we remained in the same mental state at lunch or tea and returned to the field after the break while keeping our emotions under control."

Simmons singled out Mehidy Hasan Miraz's all-round performance as one of the finest of his career, pointing to how far his bowling had come after criticism only days earlier.

"He was brilliant. His stature as an all-rounder is increasing day by day. His ability to deceive a batter like Steve Smith shows that the quality of his off-spin is steadily improving."

He also reflected on what the win meant for senior players who have endured lean periods with the side, singling out Mushfiqur Rahim, "who has been here for a long time, and been through some tough times, it was great to see the joy in his face."

With the series still to be decided, Simmons said managing the emotional comedown from such a landmark win was now the primary challenge heading into Mackay.

"It is the biggest challenge between now and the next Test match. Our emotions need to be in control, and emotional control is one of the biggest things in sport."

He added that a series win would matter even more, pointing to Bangladesh's home schedule against West Indies in October as another chance to build on the momentum, with Mirpur potentially "full on that first morning."