Matt Tubbs' brace took his tally for the season to 36 in all competitions
A Matt Tubbs brace helped Crawley to the Blue Square Bet Premier title at Tamworth and confirmed their place in the Football League for the first time.
The visitors took a deserved lead through Matt Tubbs' bullet header from William Gibson's cross.
The Red Devils were dominant with Craig McAllister and Charlie Wassmer both seeing efforts cleared off the line.
Michael Wylde brought down Josh Simpson in the area and Tubbs converted before Wassmer's late header sealed promotion.
Second placed AFC Wimbledon are now 14 points behind Crawley with just four games to play.
The Red Devils secured promotion in some style with the hosts failing to cope with their attacking play.
McAllister forced an excellent save from Lambs keeper Liam Mitchell before Tubbs put the leaders in front with a superb header moments later.
Tubbs twice went close to doubling the advantage in the first half before Danny Thomas almost notched a surprise equaliser when his header flashed past the post.
Crawley continued to dominate after the break and having forced Mitchell into a good save Simpson won a penalty when he tangled with Wylde.
Tubbs confidently converted to the delight of the 565 travelling fans.
The same player then missed an excellent chance to net his hat trick when he fired wastefully wide from Richard Brodie's pass before Wassmer put the gloss on the day with a powerful header from Simpson's pin-point cross.
In comparison to the promoted visitors, Tamworth are now just one point off the bottom four with four matches to play.
Tamworth: Liam Mitchell, Tait, Courtney, Marshall, Wylde, Lake-Gaskin (Barrow 76), Christian Smith, Wilkinson (Sheridan 57), Thomas, Jason Bradley, Farrell (Hendrie 69). Subs Not Used: Aaron Mitchell, Christie. Booked: Wylde, Sheridan.
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