The Leeds boxer is looking to secure a third national title having won the light-flyweight crown for the past two years. Having moved up a weight category, Bateson is now targeting a first flyweight medal.
He started his quest for gold and a place at the Commonwealth Games this summer well with a comprehensive unanimous points victory over Sheffield boxer Kyle Yousaf, 30-22 30-25 30-23.
The win means he will now compete at the finals weekend at the Echo Arena in Liverpool at the end of April with his quarter-final to take place on Friday 25 April.
Back in the mix
Elsewhere, Quillan Isidore continued his comeback from injury at the BMX Series competition at the Cyclopark in Kent and claimed his first Elite class win.
The victory was even more impressive given it was Isidore's first national race after months on the sidelines as a result of leg breaks suffered in a crash last year.
"It feels great to get my first Elite Men win especially after a poor ride yesterday," said Isidore. "It's good to be back mixing it up with everyone at nationals."