C.N. Sitges · ESP
Oliver is a swimmer from Spain, a butterfly specialist and a sprinter, whose official competitive record spans 11 seasons, 2 countries and 118 meets.
His recorded career begins in 2016 in Sitges, where he raced the 25 freestyle in 20.47. He started out alongside Club Natación Sitges.
His signature event is the 50 butterfly, his reference distance in butterfly, ahead of the 100 butterfly and 200 butterfly. Butterfly is the backbone of the whole record: 82 meets and 211 recorded swims.
In long course (50 m), he went from 45.39 in 2017 to a best of 24.26 in 2025 (LXVIII Cto de España Absoluto): 21.13 seconds gained in the 50 butterfly.
His record includes continental championships, in 2025 (LEN European Junior Championships). A representative mark at that level is 25.17 in the 50 butterfly, recorded in long course (50 m). He also appears in national championships and international meets.
The record runs unbroken from 2016 to 2026: 11 consecutive seasons without a single missing year.
He is a genuinely international swimmer: the official record spans 2 countries (Spain and UNK), including 6 of 118 meets outside Spain.
Those meets span 24 different venues (Sitges, Vilafranca Del Penedès, Igualada and Barcelona…). He has raced for Selección Española · Real Federación Española de Natación (RFEN), C.N. Terrassa, C.N. Sitges and Cataluña.
Still active: the directory includes official activity in the 2026 season. The last race on record is dated July 25, 2026. He holds 36 current event personal bests and 273 all-time PB improvements across 463 verified official swims in competitions governed by RFEN and European Aquatics.