| Pos | Name | Year | Mtg | Race | Cl | Machine | Town | Laps | Time | Speed | ||
| 1 | Selwyn | Griffiths | 1968 | S100 | 55 | 500cc Race | Matchless | Pontypool | ||||
| 2 | Steve | Jolly | 1968 | S100 | 55 | 500cc Race | Matchless | Leek | ||||
| 3 | Brian | Steenson | 1968 | S100 | 55 | 500cc Race | Aermacchi | Belfast | ||||
| 4 | Keith | Heckles | 1968 | S100 | 55 | 500cc Race | Norton | Liverpool | ||||
| 5 | Alan T | Lawton | 1968 | S100 | 55 | 500cc Race | Norton | Runcorn | ||||
| 6 | George | Fogarty | 1968 | S100 | 55 | 500cc Race | Matchless | Blackburn | ||||
| 7 | Vin | Duckett | 1968 | S100 | 55 | 500cc Race | Matchless | Cleveleys | ||||
| 8 | Graham | Fish | 1968 | S100 | 55 | 500cc Race | Norton | Stockport | ||||
| 9 | Nigel | Warren | 1968 | S100 | 55 | 500cc Race | Matchless | Castletown | ||||
| 10 | T H K | Turner | 1968 | S100 | 55 | 500cc Race | Norton | Belfast | ||||
| 11 | Jim | Curry | 1968 | S100 | 55 | 500cc Race | Aermacchi | Worcs | ||||
| 12 | R W | Bryant | 1968 | S100 | 55 | 500cc Race | BSA | Bucks | ||||
| 13 | George | Short | 1968 | S100 | 55 | 500cc Race | Norton | Ballabeg | ||||
| 14 | R G | Boswell | 1968 | S100 | 55 | 500cc Race | Norton | Worcs | ||||
| 15 | C V | Wallis | 1968 | S100 | 55 | 500cc Race | Velocette | Thame | ||||
| 16 | W D | Hancock | 1968 | S100 | 55 | 500cc Race | Triumph | Birkenhead | ||||
| 17 | Edward | Bilsborrow | 1968 | S100 | 55 | 500cc Race | Matchless | Preston | ||||
| 18 | Tony | Jefferies | 1968 | S100 | 55 | 500cc Race | Triumph | Shipley | ||||
| 19 | Chris | East | 1968 | S100 | 55 | 500cc Race | Matchless | Worcs | ||||
| 20 | Martin | Orgee | 1968 | S100 | 55 | 500cc Race | BSA | Worcs | ||||
| 21 | Robert | Davies | 1968 | S100 | 55 | 500cc Race | Norton | Wallasey | ||||
| 22 | Fred | Walton | 1968 | S100 | 55 | 500cc Race | Triumph | Douglas | ||||
| 23 | D | Latham | 1968 | S100 | 55 | 500cc Race | Triumph | Widnes | ||||
| 24 | Dennis | Proudman | 1968 | S100 | 55 | 500cc Race | Norton | Speke | ||||
| 25 | M J D | Taylor | 1968 | S100 | 55 | 500cc Race | Triumph | Chester | ||||
| R | Bob | Kewley | 1968 | S100 | 55 | 500cc Race | Norton | Bootle | ||||
| R | A | Ralston | 1968 | S100 | 55 | 500cc Race | Norton | Bootle | ||||
| R | John | Hughes | 1968 | S100 | 55 | 500cc Race | Triumph | Chester | ||||
| R | Paul | McGhie | 1968 | S100 | 55 | 500cc Race | Norton | Chester | ||||
| R | Bill | Smith | 1968 | S100 | 55 | 500cc Race | Paton | Chester | ||||
| R | B | Frisby | 1968 | S100 | 55 | 500cc Race | Norton | Codsall | ||||
| R | Roger | Bowler | 1968 | S100 | 55 | 500cc Race | Norton | Crawley | ||||
| R | Cecil | Crawford | 1968 | S100 | 55 | 500cc Race | Norton | Crumlin | ||||
| R | Neil | Kelly | 1968 | S100 | 55 | 500cc Race | Velocette | Douglas | ||||
| R | Peter | Noke | 1968 | S100 | 55 | 500cc Race | Matchless | Essex | ||||
| R | John | Duffy | 1968 | S100 | 55 | 500cc Race | Norton | Formby | ||||
| R | Kevin | Cowley | 1968 | S100 | 55 | 500cc Race | Norton | Isle of Man | ||||
| R | Pete | Tyack | 1968 | S100 | 55 | 500cc Race | Norton | Iver | ||||
| R | Jim | Graham | 1968 | S100 | 55 | 500cc Race | Norton | Landford | ||||
| R | G | Young | 1968 | S100 | 55 | 500cc Race | Norton | London | ||||
| R | Brian | Moses | 1968 | S100 | 55 | 500cc Race | Norton | Northallerton | ||||
| R | Terry | Edwards | 1968 | S100 | 55 | 500cc Race | Norton | Nottingham | ||||
| R | J | Smith | 1968 | S100 | 55 | 500cc Race | Norton | Perth | ||||
| R | R | Bass | 1968 | S100 | 55 | 500cc Race | Triumph | Rothwell | ||||
| R | I | Leith | 1968 | S100 | 55 | 500cc Race | Triton | Speke | ||||
| R | K | Roscoe | 1968 | S100 | 55 | 500cc Race | Norton | Stockport | ||||
| R | S | Ashford | 1968 | S100 | 55 | 500cc Race | Norton | Warks | ||||
| R | Brian | O'Neill | 1968 | S100 | 55 | 500cc Race | Norton | Widnes |