Power Nationals
Shakespeare County Raceway
June 14th/15th 2003
| Class | Winner | Runner Up |
| Super Modified | Graham Ellis 7.744/181.45 | Steve Rawlings (Broke) |
| Super Pro | Mark Flavell (7.84) 7.825/173.75 | Ian Bishop (7.96) 12.084/79.51 |
| Pro ET | Ian Brown (10.86) 11.007/116.28 | Aidan Kenny (11.60) 11.704/114.80 |
| Sportsman ET | Mark Anderson (13.48) 13.811/99.34 | Kev Slyfield (12.08) 14.169/65.22 (Red Light) |
| Super Comp | Malcolm Francis 8.953/150.00 | Martin Curbishley 8.966/15.50 |
| Super Gas | Tim Adam 9.945/146.58 | Martin Curbishley 9.884/138.04 |
| Super Street | Lee Huxley 11.014/119.36 | Ian Brown 10.988/120.00 |
| Junior Dragster | Colin Morrice (9.00) 9.160/69.44 | Johnny Walker (14.93) 15.118/40.87 |
| Custom Car Street Eliminator | Steve Pateman 9.741/145.16 | John Hales 9.575/166.67 |
| Wild Bunch | Ray Ford (Staged) | Chris Hartnell (N/S) |
| Outlaw Anglia | Pete Ashworth 9.827/138.46 | Gary McCormack 9.901/136.36 |
| Pro Stock Bike | Dave Beck 7.641/171.10 | Chris Hope 8.543/167.29 |
| Funny Bike | Neil Midgley 7.058/189.08 | Dave Holland 7.273/178.57 |
| Super Street Bike | Karl Larcombe 8.268/173.08 | Steve Venables 8.487/170.45 |
| Comp Bike | Klaus Sarembe 8.337/158.44 | Phil Leamon 8.508/157.89 |
| 9.90 Bike | Fred Furlong 10.555/98.68 | Wayne Hobbs 14.657/74.38 |
| 10.90 Bike | Iain Jack 11.479/91.65 | Paul Coombs 13.417/65.60 |
| Supertwin Fuel | Chris Stebbings 9.698/123.97 | Ian Turburville 10.096/140.62 |
| Supertwin Gas | George Laycock 9.690/133.53 | Andy Smith 10.597/120.97 |
| Supertwin Modified | T J O'Brien 10.581/125.70 | Dave Bartz 20.532/33.03 |
| Supertwin Street | Mark Earrey 10.448/133.53 | Chris Mott 11.076/120.64 |
| Junior Drag Bike | Andy Irvine (12.00) 12.772/50.90 | Jake Carruthers (13.00) 13.616/48.18 |