Moulton Harrox collected the championship trophy following the final league game of the season on Saturday.
Ben Allen put them in front at home to ICA Sports before Ollie Maltby (2) and Bobby Patterson wrapped up a 4-0 victory in the ChromaSport & Trophies Peterborough and District League Premier Division.
Moulton face Pinchbeck United at Stamford on Friday night in the President Premier Shield final.
Player-manager Ian Dunn’s hat-trick guided Pinchbeck to a 6-2 win at Crowland Town.
Tony Edwards, Tom Sergeant and Brad Murrell were also on target as they guaranteed a top-three finish.
CHROMASPORT & TROPHIES PETERBOROUGH & DISTRICT LEAGUE
Premier Division: AFC Stanground 2 Holbeach Res 1, Crowland 2 Pinchbeck 6, Leverington Sports 0 Whittlesey 6, Moulton Harrox 4 Peterborough ICA Sports 0, Sawtry 1 Thorney 0, Uppingham 1 Netherton 2.
Division One: Langtoft Res 3 Sutton Bridge 4.
Division Two: Ketton Res 0 Peterborough Polonia 4, Pinchbeck Res 9 Thorney Res 0, Whittlesey A 2 Oakham Res 3.
Division Three: Ramsey 4 Whittlesey B 0, Stamford Lions Res 2 Thorpe Wood Rangers 1, Tydd St Mary 2 Eye 2.
Division Four: Parkside 3 AFC Stanground Res 6, Stamford Belvedere Res 1 Brotherhood Sports 3, Sutton Bridge Res 5 Rutland DR 9.
Division Five: Leverington Sports A 1 Feeder 4, Whittlesey C 4 Holbeach A 1.
BALCAN LIGHTING SUPPLIES LINCOLNSHIRE LEAGUE
Challenge Cup final: Sleaford Res 0 Hykeham 6 (at Lincoln United).
PETERBOROUGH & DISTRICT JUNIOR ALLIANCE
Under-10 League Cup: Holbeach Yellow 1 Whittlesey 2, IPTA 2 Stamford Red 3.
NORTHERN COUNTIES YOUTH LEAGUE
Under-18 play-off semi-final: Lincolnshire FA 2 West Riding FA 3 (at Bottesford Town).