Asked at the end what was the highlight, he said: "It's the crowds that are watching our sport. I don't run sport for 150 people. I just love seeing full grandstands."
It seemed like a distant dream as an enemy called Cyclone Pam bore down on the Antipodes at the start of the week, but from then everything was up.
On Tuesday a helicopter was used to dry-out the Land Rover Premier Arena. However some rain turned out to be what he called "a blessing in disguise".
"It was a tough couple of introduction days, but once we got through that it turned out to be very good for the arenas".
There were plenty of highlights over six days - Lady Rider of the Year, Thursday's Hall of Fame Dinner, Mounted Games, Hawke's Bay Today's Friday Night Extravaganza and the Land Rover Cross Country on Saturday, and yesterday's Olympic Cup.
Unfortunately Jock Paget had to withdraw from the cross-country when horse Henton After Dark came down with a respiratory infection.
He had been sitting in third place after the dressage and showjumping phases.
"Obviously I am very disappointed because we were in with a chance of winning, but we're not prepared to take a risk," Paget said.
There was plenty to see yesterday too, from GJ Gardner Homes Dressage to Fiber Fresh Feeds Junior Rider of the Year Championship and of course the Bostock International Olympic Cup.
Organising such a mammoth event, there were bound to be a few hiccups but nothing that couldn't be ironed out.
"Parking is one of the problems we have at the show, there's not enough which is a major - but if you look at parking around Eden Park in Auckland, it's no better."
A new event for 2015 was the R18 Official HOY after-party on Saturday night, headlined by producer/DJ duo Jupiter Project.
It drew 750 guests and ended in police and security being called, though Mr Hansen did not want to comment as to why, adding that he was tucked up in bed at the time.
"It was minor in the scheme of things, the police were called in when things got out of hand in a party situation, it's just a normal hassle.
"There are challenges with any big event, but we have people that we trust, they have been with us for a long time and you have to trust them to do their job."
Hawke's Bay Police District Command Centre did not have any record of a major disturbance when Hawke's Bay Today called yesterday.
A&P Society general manager Brent Linn said he had a "great relationship" with HOY organisers, and would be working with them over the next few days to ensure the Exhibition Hall area was clean for its next big event on April 1.
"We have got to seat 400 people for the Hawke's Bay Primary Sector Awards, which is going to be quite a bit of work but we'll get there."
Understandably the grounds would take longer to bounce back, though it was surprising how fast they returned to normal after taking a hammering from the hooves of 2600 horses over six days, Mr Linn said.
"It's amazing ... when the marquees come down, the grass is all dead and under the pathways but it's incredible what a bit of rain and several thousands of dollars worth of undersewing can do."
Mr Hansen wished new event managers all the best.
"This is not a job, it's a total commitment".
