The Corbridge side currently top the North Second Team League as they clawed their way back from 26-0 down to beat Candy League champions Darlington Mowden Park II 28-26.
Tynedale finished two places below their physically larger and well-drilled opponents ahead of the new pilot league, but are flourishing in the new set-up throwing together some of the best second strings in the North.
Darlington were firing on all cylinders from the off and raced into a 14-0 lead within 15 minutes courtesy of two converted tries.
They built on their lead just before the break, a third try under the posts allowing an easy conversion for a 21-0 half time advantage.
It was made clear to the Tynedale bunch that the next try was pivotal if they were to stay in the game, but they were reeling within a few minutes of the restart as Darlington secured a bonus point securing fourth try and anything other than a Mowden win looked on the cards.
Yet the heart, spirit and self-belief demonstrated by the Raiders turned the game completely on its head as the courageous lions roared back.
Scrum half Jack Outson got the comeback started as he sniped over out wide after Guy Rundle made a great break upfield.
Adam Redman converted with an excellent kick and he repeated the feat soon after but from a much more straight forward position as Rundle this time went all the way after cutting a short line and stepping inside.
Darlington barely had time to catch their breath as Tynedale reduced the gap to just five points, Redman making up ground with a jaunt upfield before playing in Fin Magowan for his side’s third try just right of the posts. Redman added the three points.
With 15 minutes left, the ball was spun out wide to Rory Dixon who levelled the scores with an excellent solo try as he cut a short line and shrugged off two tackles as he made up 30 metres.
Redman maintained his 100 per cent with the boot by adding the conversion which put his side two points ahead, allowing the Raiders to claim a maximum five points from the encounter.
Shocked into action, Darlington put their rivals under real pressure for the remainder of the game but Tynedale’s phenomenal all-round display was capped off as their resolute defending allowed them to keep out their considerably larger opponents.