round                                    circuit          date         class a winner       class b winner       class c winner   class d winner
0      1  snetterton motor racing circuit , norfolk      25 march  george 'doc' shepherd       alan hutcheson    none (no entries)  gawaine baillie
1      2             goodwood circuit , west sussex       3 april          john whitmore     bill blydenstein  ellis cuff - miller      mike parkes
2      3   aintree motor racing circuit , liverpool      22 april          john whitmore       alan hutcheson       chris kerrison    roy salvadori
3      4     silverstone circuit , northamptonshire         6 may             bill aston         peter harper       chris kerrison      graham hill
4      5                    crystal palace , london        22 may  george 'doc' shepherd     bill blydenstein    none (no entries)    roy salvadori
5      6     silverstone circuit , northamptonshire        8 july          herbert linge  ellis cuff - miller       chris kerrison      mike parkes
6      7                        brands hatch , kent      7 august           frank hamlin       alan hutcheson       chris kerrison      mike parkes
7      8                     oulton park , cheshire  23 september          john whitmore         peter harper    none (no entries)    roy salvadori

Table as JSON:
{"round":{"0":1,"1":2,"2":3,"3":4,"4":5,"5":6,"6":7,"7":8},"circuit":{"0":"snetterton motor racing circuit , norfolk","1":"goodwood circuit , west sussex","2":"aintree motor racing circuit , liverpool","3":"silverstone circuit , northamptonshire","4":"crystal palace , london","5":"silverstone circuit , northamptonshire","6":"brands hatch , kent","7":"oulton park , cheshire"},"date":{"0":"25 march","1":"3 april","2":"22 april","3":"6 may","4":"22 may","5":"8 july","6":"7 august","7":"23 september"},"class a winner":{"0":"george 'doc' shepherd","1":"john whitmore","2":"john whitmore","3":"bill aston","4":"george 'doc' shepherd","5":"herbert linge","6":"frank hamlin","7":"john whitmore"},"class b winner":{"0":"alan hutcheson","1":"bill blydenstein","2":"alan hutcheson","3":"peter harper","4":"bill blydenstein","5":"ellis cuff - miller","6":"alan hutcheson","7":"peter harper"},"class c winner":{"0":"none (no entries)","1":"ellis cuff - miller","2":"chris kerrison","3":"chris kerrison","4":"none (no entries)","5":"chris kerrison","6":"chris kerrison","7":"none (no entries)"},"class d winner":{"0":"gawaine baillie","1":"mike parkes","2":"roy salvadori","3":"graham hill","4":"roy salvadori","5":"mike parkes","6":"mike parkes","7":"roy salvadori"}}