Jamaica's Davis Cup team are top of their Zone 3 group after beating host nation Costa Rica 2-1 on Wednesday.
Rowland Phillips had a straight sets 6-0, 6-2 win over Sebastian Quiros and was followed by Blaise Bicknell's 6-3, 6-1 win over Jesse Flores Knowles.
However, the doubles team of Phillips and John Chin lost to Flores Knowles and Pablo Nunes 3-6, 7-6. The team will next be action on Thursday against the Bahamas.