1965–66 Shell Shield season
The 1965–66 Shell Shield season was the inaugural edition of what is now the Regional Four Day Competition, the domestic first-class cricket competition for the countries of the West Indies Cricket Board. The tournament was sponsored by Royal Dutch Shell, with matches played from 27 January to 14 March 1966.
Five teams contested the tournament – Barbados, British Guiana, Jamaica, Trinidad and Tobago, and a Combined Islands team. Each team played the others once, making for a total of ten matches. Barbados were undefeated during the competition, winning three matches and drawing the other to win the inaugural title. Jamaican batsman Easton McMorris and Barbadian bowler David Holford, led the tournament in runs and wickets, respectively.
Points table
;KeyW – Outright win L – Outright loss LWF – Loss, but won first innings DWF – Drawn, but won first innings DLF – Drawn, and lost first innings P – Overall pointsFixtures
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Statistics
Most runs
The top five run-scorers are included in this table, listed by runs scored and then by batting average.| Player | Team | Runs | Inns | Avg | Highest | 100s | 50s |
| Easton McMorris | 553 | 8 | 92.16 | 190 | 3 | 0 | |
| Peter Lashley | 387 | 4 | 129.00 | 121* | 2 | 2 | |
| Seymour Nurse | 364 | 4 | 91.00 | 153 | 2 | 1 | |
| Clive Lloyd | 344 | 5 | 86.00 | 194 | 2 | 0 | |
| Irvine Shillingford | 308 | 7 | 51.33 | 113* | 1 | 2 |
Most wickets
The top five wicket-takers are listed in this table, listed by wickets taken and then by bowling average.| Player | Team | Overs | Wkts | Ave | 5 | 10 | BBI |
| David Holford | 152.3 | 18 | 21.44 | 0 | 0 | 4/51 | |
| Charlie Griffith | 75.5 | 15 | 13.73 | 0 | 0 | 4/41 | |
| Gary Sobers | 94.3 | 14 | 20.57 | 1 | 0 | 6/56 | |
| Edgar Gilbert | 129.3 | 13 | 26.07 | 0 | 0 | 3/12 | |
| Willie Rodriguez | 104.3 | 12 | 27.25 | 1 | 0 | 5/71 |