An out of sorts Blaydon were on the back foot for much of the game and despite a late rally to earn a losing bonus point can have little complaint at the result.
Near neighbours Tynedale however were a constant threat with some excellent inter-passing from both forwards and backs alike, and in fly-half Gavin Beasley had a reliable goal-kicker, in sharp contrast to the home side.
Blaydon opened the scoring in their first attack in the 3rd minute when flanker Harry Bate was driven over from a rolling maul, but were soon penned back by a brace of Beasley penalties and trailed 5-6 at the break.
It was all Tynedale at the start of the second period and the lead was extended when Sep Visser wriggled over between the posts. Beasley added the extras and was on the mark again when Jack Harrison took advantage of a clearance charge-down to nip in for the visitors second score.
Now 5-20 in arrears Blaydon belatedly came to life and from a penalty to the corner Bate repeated his first half effort from close range.
With time running out they bombarded the Tynedale line with a series of catch and drives and after Joseph Anderson had been yellow carded were rewarded with a 3rd score, replacement Tom Small crossing in the corner, but it was all too little and far too late.
Tries: Bate 3,65, Small 77
Tries: Visser 44, Harrison 51
Conversions: Beasley 44,51
Penalties: Beasley 11,32
Star man: Harrison (Tynedale)
Referee: Andrew Rawson