Defending champions Barbados with 183 and 243 for 4, played to a draw with Trinidad and Tobago 307 at Up Park Camp.
Opener Andre Alayne hit 102 not out for the Bajans, who trailed by 124 runs on first innings.
At Sabina Park, Guyana defeated the Windward Islands by two wickets.
Set 263 for victory, Guyana reached their target for the loss of eight wickets.
Anthony Bramble made 78 and Seon Helmter 52 not out against John Fabien 4 for 43.
Earlier, the Windwards with a first innings lead of 74, and resuming on 163-7 were dismissed for 189.
So after three rounds, Trinidad and Tobago lead with 30 points.
They are followed by Jamaica and the Leewards 24, Barbados 20, Guyana 16 and the Windwards 4.
