Sandro Tomaš is a former medley

Medley swimming

Medley is a combination of four different swimming styles into one race. This race is either swum by one swimmer as individual medley or by four swimmers as a medley relay...

 swimmer from Croatia

Croatia

Croatia , officially the Republic of Croatia , is a unitary democratic parliamentary republic in Europe at the crossroads of the Mitteleuropa, the Balkans, and the Mediterranean. Its capital and largest city is Zagreb. The country is divided into 20 counties and the city of Zagreb. Croatia covers ...

, who competed for his native country at the 2000 Summer Olympics

2000 Summer Olympics

The Sydney 2000 Summer Olympic Games or the Millennium Games/Games of the New Millennium, officially known as the Games of the XXVII Olympiad, were an international multi-sport event which was celebrated between 15 September and 1 October 2000 in Sydney, New South Wales, Australia...

 in Sydney, Australia. There he ended up in 42nd place in the men's 400 m individual medley event.

Sandro was a former 400  individual medley (short course) Croatian national record holder (4:17:51).

He has seen much success in the masters swim meets, most notably a World champion in Perth, Australia

Perth, Western Australia

Perth is the capital and largest city of the Australian state of Western Australia and the fourth most populous city in Australia. The Perth metropolitan area has an estimated population of almost 1,700,000....

 in 2008 (age 35-39) and European record holder in 100 m butterfly (age 35-39).

Since 2002, he has been serving as a swim coach at HAPK Mladost

Mladost (sports society)

HAŠK Mladost is an academic sports society from Zagreb, Croatia, sponsored by the University of Zagreb.Clubs named Mladost exist in athletics, field hockey, judo, basketball, bowling on ice and asphalt, fencing, volleyball, swimming, rugby, synchronised swimming, skiing, ice-hockey, ice skating,...

http://www.hapk-mladost.hr swim club for which he competed his whole career.