The Ulster Region Showjumping 1.35m Grand Prix hosted at Connell Hill, Randalstown was won by Londonderry GP Dr John McLaughlin, while young Banbridge star John McEntee continued his winning form to claim the seven-year-old final at the Horsesport Ireland Studbook series in Wexford.
In addition, Londonderry international Jordan Coyle, based in the US, had his third success inside two weeks when he won the $200,000 Grand Prix at HITS Saugerties North New York state with Eristov.
The Great American Summer Series, by permission of the State of New York, saw Jordan Coyle also partner Ariso to victory earlier in the $100,000 HITS Saugerties Grand Prix and take runner up on Picador - who won a won a smaller GP class days before - to claim $52,000 of the total prize fund.
The Underwriting Exchange 1.40m Grand Prix in Wexford saw victory for Elizabeth Power with Doonaveragh O One from 90 starters, closely followed for second place by young Strabane talent Jonathan Smyth and Ann Doherty's Crystal Tom.
Showjumping in Ireland continues under strict Covid-19 guidelines with no spectators, no children, no public and no rosette presentations.
The Ulster Grand Prix second leg of the series was hosted by Gillian Creighton of Connell Hill, who was delighted to see riders back in the saddle after lockdown.
Praising the riders, she said: "Everyone has been compliant with the Covid-19 protocols we have implemented across the showgrounds. I was really impressed by the standard of competition, professionalism and turnout today by all."
Olivia Roulston, Natasha Carolan and Dr McLaughlin made the Grand Prix jump off, with McLaughlin and Lincourt Luidam fastest clear in 41.02 ahead of Natasha Carolan on Halina HL galloping into second in 43.15.
The Keonan stables-owned Erico, ridden by the consistent Roulston, finished third.
Portadown's Abby Morton and Blueoak Yogi took the 1m 20 class ahead of Roulston, this time on the Rosbotham owned Avalent.
There were also wins for Fiona Thompson (1m) and Finn Osborne (1.1m).
Barnadown hosted the HSI Studbook series, where Banbridge teenager McEntee followed on from his Galway success with the Marion Hughes-owned HHS Vancouver to win the seven-year-old final, and later explained: "To have back to back wins on Vancouver was a great feeling. The class was always going to be tough with the high calibre of riders and horses.
"I was able to take chances on him because he is a very good horse and they paid off. I have some very nice horses from HSS Marion Hughes and Miguel Bravo and I am looking forward to seeing what the rest of the season brings."
Other HSI Studbook age winners were six-year-olds Cora Sharkey with Lisboy Mermus and five-year-olds claimed by Jason Foley with Miss Zigali.
Foley also showed his class to gallop into first and second in the €12,000 Premier Grand Prix League, winning with Castlefield Vegas, as well as taking runner-up on Castlefield Class ahead of Gerard O'Neill in third with MHS High Hopes.
Tom Hearne won the four-year-old Youngster class at The Meadows, Lurgan, with the five years going to Tara Dunne and six-year-olds taken by John O'Hagan.
The seven-and-eight-year-olds, meanwhile, saw success for Charlotte Harding, while Beverley Irwin excelled in 1m 20 and Stephen Gibson 1m 30.