
Thatcham made the trip to Tooting & Mitcham United on Easter Monday but were beaten 3-2.
Tadley's win earlier in the day means the hosts were consigned to a third place finish, but regardless they raced into a three goal lead through Alex Cruickshank (19), Freddie Jones (45) and Michael Onovwigun (48).
However the Kingfishers made a fight of it, with Fin Tombs scoring from 25 yards on 68 minutes, then Charlie Knight added a second shortly after.
Dan Smith came agonisingly close to a late equaliser after his header came back off the post.
At the Mettal Stadium back in October, Tooting had come from two down to win 3-2. Town will not look back fondly at games played at the Imperial Fields Stadium, after suffering three narrow defeats to Tooting's tenants Balham in the first half of the season.
On Saturday the Kingfishers travel to Chipstead for the final fixture of the season. The Chips are now safe from relegation following Camberley's defeat at Tadley.
Team : Wieczorek, Meikle, Winchcombe, Tombs, Denton, Heholt, Georcelin, Polding, Knight, Smith, Angell.
Subs on : Southgate, Willmoth. Subs unused : Clark, Gmiterek, Agbotey
Attendance : 390