However, a number of other sides still have an outside chance of making the grand final.
Rotorua Central are one of those teams. They face off against Taupo Wanderers at Puarenga Park in their third round match-up.
Central captain Sam Gordon said his team had a couple of younger players taking the field today, which gave them a good chance to perform.
He said T20 cricket can be really entertaining and it should be a good finals day.
"It is pretty exciting. It is a chance to free your arms when you are batting. It is a real batters game I reckon," he said.
Rotorua/Taupo senior reserve grade T20 draw today: Round 3: Geyser 1 v Taupo Old Boys, Taupo Combined Colleges v Eastern Pirates, Central v Taupo Wanderers, Geyser Fossils v Bay of Plenty Indians.