8 October 1977 |
|Highest ranking||No. 304 (7 June 1999)|
|Highest ranking||No. 256 (14 June 1999)|
Orellana was a member of the Venezuelan Davis Cup team, having posted a 6–6 record in singles and a 5–2 record in doubles in nine ties played from 1998 to 2004.
Orellana represented Venezuela at the 2002 Central American and Caribbean Games in San Salvador, El Salvador, winning the silver medal in the men's singles event while taking the bronze medal in both the men's doubles and men's team events. Orellana also represented Venezuela at the 2003 Pan American Games in Santo Domingo, Dominican Republic, reaching the third round in the men's singles event and reaching the quarterfinals in the men's doubles event.
ATP Challenger & ITF Futures
Singles Titles (6)
|ATP Challenger Series|
|ITF Futures Series (6)|
|1.||23 November 1998||Tucson||Hard||Alexander Popp||6–3, 4–6, 6–0|
|2.||12 November 2001||Curaçao||Hard||Antonio Baldellou-Esteva||6–3, 6–2|
|3.||8 April 2002||Kingston||Hard||Roman Valent||6–2, 6–4|
|4.||13 May 2002||Montego Bay||Hard||Luke Smith||7–5, 4–6, 7–5|
|5.||8 September 2003||Montego Bay||Hard||Jacob Adaktusson||6–3, 6–4|
|6.||20 October 2003||Montego Bay||Hard||Luciano Vitullo||6–3, 6–1|