Career
He prefers the point guard position, but can play shooting guard as well. Kalnietis spent two and a half seasons with the LKKA-Žalgiris. He averaged 17.7 points and 4.3 assists in his second season.
Kalnietis made his pro debut in February 2006 with the Žalgiris of Kaunas.
He averaged 6.8 points on 65 percent shooting in the Euroleague. He also led the team to a 2007 ULEB Summer League title, where he was named Most Valuable Player. He competed at the Reebok Eurocamp in Treviso in 2006 and 2008.
Kalnietis had a breakout season in 2008-2009, when he averaged 11.3 points in the Lithuanian League and 8.5 points and 3.0 assists in the Euroleague. He scored a career-high 20 points in a loss against the Montepaschi Siena on 10 December 2008.
Kalnietis signed a three-year contract with the Benetton Treviso in June 2009.
However, because he had another one-year contract with Žalgiris Kaunas, International Basketball Federation arbiter"s decided that he belongs to Žalgiris. On 27 December 2010, he signed a three-year extension with his hometown club Žalgiris Kaunas. In October 2012, however, he announced that he"s interested in playing abroad for the first time in Russia"s Lokomotiv Kuban Krasnodar.
On 5 October, he signed a three-year contract with the team
On 18 December 2013, Kalnietis was named Lithuania Basketball Player Of The Year. On 27 April 2015, he parted ways with Lokomotiv.
In July 2015, he joined the Indiana Pacers for the 2015 National Basketball Association Summer League. On 17 July 2015, he returned to Žalgiris Kaunas, signing a one-year contract.
On 23 January 2016, he left Žalgiris and signed a 1.5 year contract with EA7 Emporio Armani Milano.
Kalnietis started at point guard for the Lithuanian national basketball team that finished seventh in the 2006 World Championship. He averaged 6.0 points and 2.8 assists. He led Lithuania national team during EuroBasket 2013 to silver medals averaging 12.1 points and 5 assists per game (best result in championship).
He missed the 2014 International Basketball Federation World Cup due to the clavicular dislocation, but returned to the national team at EuroBasket 2015.
Furthermore, he totally dished out 70 assists which is the all-time record of assists per one European championship.