[1] In 2017, he won the title for the second time with a sixth-round technical knockout (TKO) over Dublin's former highly decorated amateur stand out Declan Geraghty at the Waterfront Hall in Belfast, live on BoxNation.

[3] Tennyson challenged Ryan Walsh for the British featherweight title, losing by fifth-round TKO after having been dropped twice in the fight by body shots.

[4] After a fifth round TKO loss at Super-Featherweight to then IBF Champion, Tevin Farmer in 2018 (once again via body shots), it became apparent that Tennyson was still having to drain himself significantly to make weight and it was affecting his performances in the ring.

Since making the move, Tennyson had won six straight fights by knockout, including wins over the likes of Atif Shafiq, Craig Evans, Gavin Gwynne (against whom he won the vacant British Lightweight title), and previously unbeaten Josh O’Reilly,[6] before losing to unheralded Mexican Jovanni Straffon by 1st-round TKO.

As the pair went toe-to-toe, Straffon had more success, landing the better shots and dropping Tennyson twice before the referee decided to wave the fight off and award him the victory.