Thousands of people braved the downpours to make a beeline for the RDS as some of the top show jumpers in the world vied for a slice of the million euro in prize money.
O’Connor, who was back aboard his bronze medal winning horse Blue Lloyd 12, said he had jumped really well after travelling back from the London games.
“It is promising for the week ahead,” the Co Meath-based showjumper, who had entered the main arena for the Failte Stakes amid heavy rainfall, said. “He (Blue Lloyd) is Norwegian of origin but he has to get used to the Irish weather.
O’Connor, who had the Olympic medal with him in the stables, said it was great to be back in Dublin with a bit of silverware in tow.
“The crowd are so supportive of the horse industry. I hope it is a big boost to everybody the amount of goodwill out there is immense. Hopefully we can give them something to cheer about as well,” O’Connor, who looks likely to be on the Irish team contesting the famous Aga Khan trophy on Friday, said.
The five-day show was opened in traditional style by the Lord Mayor of Dublin Naoise O Muiri in a horse-drawn carriage.
More than 100,000 people are expected to attend the show over the next five-days, with 1,400 horses and ponies in action and more than 300 trade exhibitors.