Hank Rivers led Thunder with 18 points, supported by Bud Johnston, who scored 17, as Thunder showed great character to bounce back from Saturday’s 98-87 National Trophy defeat at Tees Valley Mohawks.
Thunder coach Daniel Hildreth said: “This was a great performance, the whole team played well and I’m proud of everyone involved.
“We’ve deserved this win, and it was a great reward for the effort and professionalism they displayed on the court this weekend.”
Thunder trailed 22-15 after the first quarter as Medway Park, who handed Thunder an opening day loss, looked to assert themselves early.
The visitors, though, came back strongly in the second quarter and only a three on the buzzer gave Medway the half-time lead, 35-33.
It was the third quarter that was pivotal to the success of Thunder. With Rivers and Johnston leading from the front, Thunder led 62-51 heading into the fourth quarter and maintained their advantage to hold on for the win.
Thunder will again be on the road in the next round when they will travel to Westminster Warriors on October 28.
Despite a spirited performance, Thunder went down to Tees Valley Mohawks on Saturday. Without Rivers, Thunder were led by Tomas Seduikis, who got 23 points, supported by Joe Carter, who sank 21.
Thunder led 22-20 after the first quarter but trailed 50-38 at half-time and Tees Valley saw out the game for the win, despite back-to-back three-pointers from Julian Stanley.