Portadown’s Lee Davison produced an assured drive at Tullyroan Oval to take home the main Superstox prize.
Davison gained control of the final on lap four and moved into a winning position ahead of the Grattan brothers, Gary and Denver.
Jack Gilpin from Portadown was fourth over the line.
The entry list proved close to maximum as drivers lined out within a class set to welcome the World Championship to Northern Ireland this year for the first time since 1992.
The Two-Litre Hot Rods class featured Portadown’s Mark Madill first in the opening heat, with Adam Hylands - from the Birches - steering a borrowed McMillan Tigra to second.
The opening meeting of the 2015 season also produced wins for Chris Lattka (Stock Rods Irish Masters), Shane Murray (Two-Litre Hot Rods), Chris Hamill (1300 Stock Cars) and Dan Shannon (ProStocks).
Drivers from across the United Kingdom, Republic of Ireland and Europe have signed up to tackle Sunday’s Shamwreck 2015 meeting at Tullyroan Oval.
The opening race is set to head off the grid at 2 o’clock - with a full support programme of Superstox, ProStocks and Junior Productions alongside the National Bangers main event.
Visitors set to thrill supporters include teams led by Maarten Steenbekkers (Holland), Nigel Riley (England) and Steven Reynolds (Republic of Ireland).
Focus for fans closer to home will centre on the Portadown trio of Jonny Murdock, Willy Ogilby and Dave Haugh.
Portadown-based Michael Hyde wrapped up his Irish Karting Championship appearance in style with a memorable victory.
The 15-year-old clocked up success across the Irish IAME X30 Junior Karting class despite starting in County Louth from second last on the grid.
It provided Hyde was a first win at the second-round stage of the programme.
Hyde opened the championship last month with fourth place at Nutts Corner and the second-fastest timing.
Difficult weather conditions in County Louth, however, restricted Hyde’s progress at the Whiteriver venue.
Hyde’s target is to secure a Team Ireland spot for the World finals in France.
Round three of the Irish schedule will take place in County Cork on April 29.