Avellino began her netball career with the Model Farms Netball Club in Sydney's north-west. In her junior years, she also played for netball associations representing Baulkham Hills Shire and Parramatta/Auburn.[3][4]
Between 1993 and 1996, Avellino played for Adelaide Garville in the Mobil Superleague. In 1993 and 1994, she helped Garville reach two grand finals. In 1993, a Garville team featuring Avellino, Jenny Borlase and Michelle den Dekker and coached by Patricia Mickan, defeated Sydney Electricity and finished as premiers. However, in 1994 Garville lost to their main rivals, Contax, in controversial circumstances. A closely fought match finished level at full time. However Garville claimed they had actually won the match 48–46. It was alleged that during the third quarter, the official scorer accidentally gave one of Garville's goals to Contax. Despite protests from Garville, extra time was played and resulted in a 61–58 win for Contax. Avellino scored 23 from 31 for Garville in the final.[11][12][13]
Between 1997 and 2002, Avellino made 71 senior appearances for Sydney Sandpipers in the Commonwealth Bank Trophy league. She made more appearances for Sandpipers than any other player. After spending the 1999 season with Melbourne Phoenix, Avellino returned to Sandpipers in 2000 and helped them achieve their best performance in the league . They finished third in the regular season, above their neighbours, Sydney Swifts. In 2001 and 2002, together with Joanne Morgan, Avellino co-captained Sandpipers.
[1][14][16][17][18][19][20][21] Ahead of the 2003 season, Avellino was dropped from the Sandpipers squad due to an osteitis pubis injury.[22]
Between 2004 and 2007, Avellino played for Southern Sting in the National Bank Cup league.[32] She was initially signed as cover for Donna Loffhagen. However, after Tania Dalton suffered a season ending injury, Avellino became a prominent member of Sting team that won the league title in 2004. In 2006, she helped Sting finish as runners up. In 2007 she won a second title with Sting. She played for Sting in three grand finals.[1][28][33][34][35][36][37][38]
Australia
Between 1994 and 2006, Avellino made 20 senior appearances for Australia. She made her senior debut for Australia on 20 July 1994 against Trinidad and Tobago. She was a member of the Australia team that won the gold medal at the 1995 World Netball Championships. Almost a decade passed before Avellino was recalled to the Australia team. In October 2004 she returned to international netball and was subsequently a member of the Australia team that gained the silver medal at the 2006 Commonwealth Games.[2][6][39][40][41][42]
Between 2008 and 2010, Avellino coached the Southland netball team that competed in the National Provincial Championships.[47] In 2008 she was player coach as Southland defeated Auckland Waitakere 56–46 to win their first title in 49 years. Her Southland teammates included Julianna Naoupu and Wendy Telfer.[61][62][63]
Southern Steel
In May 2011, Avellino and Janine Southby, were appointed co-head coaches of Southern Steel.[48][49][64][65] However, after a poor 2012 ANZ Championship season, which saw Steel win just two matches and lose 11, Steel decided to end the co-coaching experiment.[66][67][68] Ahead of the 2013 season, Southby was appointed head coach and Avellino was named as assistant coach.[69][70] However, this new arrangement survived only four weeks into the new season. It was reported that the two coaches had a falling out and had differences in "coaching philosophies". In April 2013, Avellino was subsequently sacked as Steel assistant coach.[71][72][73]
