MATT BOOTH scored the only goal as Wokingham and Emmbrook Reserves edged past Wraysbury Village in the Premier Division.
After a tough start to the season, Sumas have turned their form around in recent weeks with two wins and a draw in their last three games with a number of youngsters given a run-out.
Wokingham stay 10th and face a tricky clash with title challengers Wright and Unity Sports at Lowther Road on Saturday.
FC WOODLEY stay clear at the top of Division Two after a 3-2 win over Brimpton Athletic.
Ricky Pelham and Christopher Waring were joined on the score-sheet by substitute Richard Thomas to pick up the narrow win.
In the same league, late goals from David Worley and Joe Pietrasik earned bottom side HURST RESERVES a 2-2 draw at Marlow United Reserves while AFC CORINTHIANS lost 4-1 at Woodcote Stoke Row Reserves, despite a goal from Jonathan Gingell.

James Pople bagged two penalties as WARGRAVE saw off Braybrooke 3-1 in Division Three.
Callum Alliston was also on target for the hosts as they rise up to fifth.
WOODLEY UNITED A and HURST A cancelled out each other with a 2-2 draw. Shamen Goswell and Timothy Green scored for Woodley while Peter Jones and Dean Cherret replied for the visitors.
In Division Four, HARCHESTER HAWKS DEVELOPMENT lost an 11-goal thriller at Farnham Royal Mavericks.
In a battle of the bottom two, Harchester remain above Farnham despite going down 6-5 with Aaron Hedgecox (2), Mark Rolph and James Stoker (2) among the scorers.
Jake Bartlett scored a hat-trick to guide WOODLEY UNITED B to a 3-1 win over AFC CORINTHIANS A. Ashraf Ali netted the consolation strike.
Reading and District Sunday League –
Senior Division: Woodley Wanderers 1-2 Kidmore End/The Mod
Premier Division: 116 Exiles 0-9 Eldon Celtic, AFC Burghfield 2-3 Woodley United, Le Galaxy 2-2 Athletico Forest
Divison One: Caversham AFC 3-1 WS Hobnob, Woodley Wanderers Reserves 2-0 The Theale Bull
Division Two: 116 Exiles Reserves 2-9 Maiden Place, Wokingham and Emmbrook 6-0 Forest
Division Four: The Bugle 3-1 Shinfield Rangers, Theale 4-1 Borussia Teeth
John Lusted Cup: Twyford Comets 0-4 Barton Rovers
Bracknell Town and District Sunday League –
Premier Division: Finchampstead Athletic 3-0 Bracknell Cavaliers
Division One: AFC Crowthorne 1-4 Winkfield, Finchampstead Athletic Reserves 6-1 Ashridge Park
Division Two: Woodley United 4-2 3M FC
Division Three: Bracknell Corinthians 0-2 Winnersh Rangers, Bracknell Falcons 1-5 Bearwood Wanderers, WAB Reserves 2-0 Winnersh Town
Division Four: Bracknell Cavaliers Reserves 0-2 Finchampstead Athletic A, Crownwood Dukes 7-2 Harmanswater