The Hunterville 9yr-old dug deep during his home-straight battle with runner-up Bad Boy Brown, who had whittled the frontrunner's lead down from 10 lengths in the running to just a nose at the line.
Lammas admitted he initially thought Bad Boy Brown had pipped Alfie Dee to win the 4200m feature.
''I thought he [Bad Boy Brown] got me on the line, but he [Alfie Dee] just stuck his nose out and got the win.''
Lammas was elated with the win and his frontrunning tactics on the winner were no fluke.
He went into the event with a plan to keep Alfie Dee happily striding along in the lead.
''My whole game plan was to get to the front. I was going to aim for the front down the home straight on the first lap, but I got there sooner.
''He was just happy cruising and pricked his ears - I just kept him in a happy spot.
''When he wanted to get a bit quicker I let him roll a bit, then I eased him back - I gave him a couple of breathers.''
Lammas' plan paid off and it earned him heady praise from Alfie Dee's trainer, Ken Duncan.
''That was an exceptional ride,'' he said. ''It was a tired horse he picked up and got over the line, so that was a fantastic ride from Buddy.
''That's why I put him on my horses. He has got that balance and ability.''
Duncan backed Alfie Dee's ability to aim him at the Grand National Hurdles.
The 9yr-old had had only four hurdle starts before yesterday's race and he had not flattered in three of them.
Alfie Dee came south after he won a maiden hurdle at Awapuni two weeks ago.
''I have always rated this horse very highly - probably too high. He has run out of his grade his entire life.
''For him to finally stand up and say how good of a horse he is, is a great thrill.''
Bad Boy Brown was defeated by a narrow margin after he looked to pull hard during the running.
The first two horses gapped the third placegetter, Guy Fox, by more than 11 lengths at the finish.
