SGB Championship: Glasgow Tigers 54, Scunthorpe Scorpions 36
Glasgow: Richie Worrall 9, Lewis Kerr 5, Claus Vissing 8, Paul Starke 12, Chris Harris 12, Jack Thomas 2, James Sarjeant 6.
Scunthorpe: rider replacement for Steve Worrall, Aaron Summers (guest) 12, Josh Auty 10, Jake Allen 8, Jason Garrity 1 (withdrawn after crash in Heat 4), Danny Phillips 0, Gino Manzares 5
Former Grand Prix star Chris Harris turned on the power as Glasgow Tigers stung Scunthorpe Scorpions in the SGB Championship.
The Cornwall-born racer claimed a 12-point maximum winning his four rides in the comfortable 54-36 success.
Tigers lost the first heat 4-2 when former Glasgow captain Aaron Summers, who was guesting for Scorpions, sped away from the pack despite early pressure from Richie Worrall.
A 5-1 in the third race courtesy of Claus Vissing and Paul Starke, put the home side ahead 10-8.
Another 5-1 in Heat Four extended their advantage to 15-9 and they never looked back.
A 5-1 in Heat Nine made it 33-21 in favour of the home side and they closed out Scorpions with a run of four 3-3 drawn heats.
And a 4-2 in the second last race extended Tigers advantage to 49-35 before they finished off with a 5-1 thanks to a win by Worrall with Starke in second spot.
Summers, now with Berwick Bandits, top scored for the visitors with 12 points.
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