C.N. Sabadell · ESP
Siro is a swimmer from Spain, an international traveller on the circuit and a national-level swimmer, whose official competitive record spans 9 seasons, 2 countries and 86 meets.
His recorded career begins in 2018, and one of his earliest marks still on file is the 50 backstroke in 32.61, raced in Cnbarcelona. He started out alongside Club Natación Sabadell.
His signature event is the 100 butterfly, the event he has raced the most, followed by the 100 freestyle and 50 freestyle. Butterfly is where his specialisation lies (50 meets), while freestyle appears in more meets (69 meets and 136 recorded swims spread across 8 different distances) because he races it across the full distance range rather than as a main event.
His fastest 100 butterfly stands at 59.13, set in long course (50 m) at Sabadell.
His record includes national championships, between 2023 and 2026 (X CAMPEONATO DE ESPAÑA ALEVIN, Madrid, ESP and Campeonato de España Primavera, Sabadell, ESP). A representative mark at that level is 17:03.69 in the 1500 freestyle, recorded in long course (50 m).
The record runs unbroken from 2018 to 2026: 9 consecutive seasons without a single missing year. 2024 is the busiest season on record, with 33 verified individual swims.
He is a genuinely international swimmer: the official record spans 2 countries (Spain and UNK), including 42 of 86 meets outside Spain.
Those meets span 18 different venues (Sabadell, Terrassa, Barcelona and Sant Andreu…). He has raced for Club Natación Sabadell.
Still active: the directory includes official activity in the 2026 season. The last race on record is dated July 30, 2026 in Sabadell, with 2 swims: 57.60 in the 100 butterfly in short course (25 m) and 59.13 in the 100 butterfly in long course (50 m) and 3 PB improvements. He holds 39 current event personal bests and 302 all-time PB improvements across 326 verified official swims in competitions governed by RFEN.