Published Tuesday, 15 May 2012
Alastair Seeley in action during a North West 200 practice session. (© Pacemaker)
The Tyco Suzuki rider battled the inclement weather to ensure he was the quickest man on the road, with a top speed of 120.68mph in the Superbikes.
Seeley was closely followed by North West 200 regular John McGuinness and local competitor William Dunlop.
In the Supersports, it was Seeley again in the lead - chased by teammate Guy Martin and McGuinness.
Dungannon's Ryan Farquhar proved fastest in the Superstock class, but Seeley was once again in the thick of the action and just half-a-second off the pace.
Ballymoney's Adrian Archibald topped the Supertwin class, with almost a second to spare over another regular visitor to the Triangle circuit, Michael Rutter.
Veteran racer - but North West 200 'new boy' - Jeremy McWilliams was ninth.
Further practice sessions are due to be held on Thursday, while racing proper also gets underway that evening for the first time.
The Superstocks and Supertwins will go out on the Thursday evening, ahead of the main race day on Saturday - in a bid to minimise the impact of any bad weather on the racing schedule, particularly after last year's wash-out.