High school career

The four different high schools he attended were DeMatha Catholic High School and St. Vincent Pallotti High School in Maryland, Mount Zion Academy in North Carolina and Worcester Academy in Massachusetts, where he played alongside Craig Smith.

Considered a four-star recruit by Scout.com, Jack was listed as the No. 9 point guard and the No. 40 player in the nation in 2002.

College career

After high school, Jack played for Georgia Tech in Atlanta. In his sophomore year (2003-04), he helped guide Georgia Tech to the NCAA Finals with 12.5 points and 5.1 assists a game. In his junior and final year at Georgia Tech he averaged 15.5 points, 4.8 rebounds and 4.5 assists.

After forgoing his senior year of eligibility at Georgia Tech to enter the NBA draft, Jack graduated on December 13, 2014, receiving his degree in business management at commencement ceremonies in Atlanta.

NBA career

Portland Trail Blazers (2005-2008)

After his junior year at Georgia Tech, he opted to enter the 2005 NBA draft and was selected by the Denver Nuggets with the 22nd pick. On draft night, he was traded to the Portland Trail Blazers in exchange for their 27th pick (Linas Kleiza) and 35th pick (Ricky Sánchez).

As a rookie in 2005-06, Jack backed up Steve Blake and Sebastian Telfair at the point, getting limited minutes. Blake was traded to the Milwaukee Bucks and Telfair was traded to the Boston Celtics in a multi-player trade during the 2006 off-season. In their absence, Jack was named starting point guard by coach Nate McMillan for the 2006-07 season, dramatically increasing his minutes and stats. With Blake's return in 2007-08, however, Jack was once again relegated to sixth man.

Indiana Pacers (2008-2009)

On July 9, 2008, Jack was traded to the Indiana Pacers along with Josh McRoberts and 2008 NBA draft pick Brandon Rush for Ike Diogu and Jerryd Bayless.

Toronto Raptors (2009-2010)

On July 13, 2009, Jack signed a 4-year, $20 million offer sheet with the Toronto Raptors. The Pacers had seven days to match the offer, and they chose not to.

New Orleans Hornets (2010-2012)

On November 20, 2010, Jack was traded to the New Orleans Hornets, along with Marcus Banks and David Andersen for Peja Stojaković and Jerryd Bayless.

Golden State Warriors (2012-2013)

On July 11, 2012, Jack was traded to the Golden State Warriors in a three-team trade including the Philadelphia 76ers, who received Dorell Wright from Golden State.

On February 22, 2013, Jack recorded a double-double with 30 points and 10 assists against the Spurs and became the first bench player to record such numbers since Magic Johnson in 1996.

At the end of season, Jack finished third in the Sixth Man of the Year voting.

Cleveland Cavaliers (2013-2014)

On July 12, 2013, Jack signed with the Cleveland Cavaliers. On April 15, 2014, he was named the recipient of the ninth annual Austin Carr Good Guy Award. The award, named after Cavaliers legend Austin Carr, is designed to recognize a Cavaliers player who is cooperative and understanding of the media.

Brooklyn Nets (2014-present)

On July 10, 2014, Jack was traded to the Brooklyn Nets in a three-team trade involving the Cleveland Cavaliers and the Boston Celtics. Hours after graduating from Georgia Tech on December 13, 2014, Jack travelled to Charlotte to join his teammates for their game against the Hornets. In 20 minutes of action off the bench, he recorded 14 points, 5 assists and 2 rebounds to help the Nets win 114-87.

On November 14, 2015, Jack scored a season-high 28 points in an overtime loss to the Golden State Warriors. On January 3, 2016, he was ruled out for the rest of the season with a torn anterior cruciate ligament and small medial meniscus tear in his right knee. He sustained the injury the previous night during the second half of the Nets' game at Boston.

NBA career statistics

Legend
GP	Games played	GS	Games started	MPG	Minutes per game
FG%	Field goal percentage	3P%	3-point field goal percentage	FT%	Free throw percentage
RPG	Rebounds per game	APG	Assists per game	SPG	Steals per game
BPG	Blocks per game	PPG	Points per game	Bold	Career high

Regular season

Year	Team	GP	GS	MPG	FG%	3P%	FT%	RPG	APG	SPG	BPG	PPG
2005-06	Portland	79	4	20.2	.442	.263	.800	2.0	2.8	.5	.0	6.7
2006-07	Portland	79	79	33.6	.454	.350	.871	2.6	5.3	1.1	.1	12.0
2007-08	Portland	82	16	27.2	.431	.342	.867	2.9	3.8	.7	.0	9.9
2008-09	Indiana	82	53	33.1	.453	.353	.852	3.4	4.1	1.1	.2	13.1
2009-10	Toronto	82	43	27.4	.481	.412	.842	2.7	5.0	.7	.1	11.4
2010-11	Toronto	13	13	26.7	.393	.167	.870	3.2	4.5	1.1	.0	10.8
2010-11	New Orleans	70	2	19.6	.412	.345	.845	1.9	2.6	.6	.1	8.5
2011-12	New Orleans	45	39	34.0	.456	.348	.872	3.9	6.3	.7	.2	15.6
2012-13	Golden State	79	4	29.7	.452	.404	.843	3.1	5.6	.8	.1	12.9
2013-14	Cleveland	80	31	28.2	.410	.341	.839	2.8	4.1	.7	.3	9.5
2014-15	Brooklyn	80	27	28.0	.439	.267	.881	3.1	4.7	.9	.2	12.0
2015-16	Brooklyn	32	32	32.1	.391	.304	.893	4.3	7.4	1.1	.2	12.8
Career		803	343	28.1	.440	.346	.856	2.9	4.5	.8	.1	11.1

Playoffs

Year	Team	GP	GS	MPG	FG%	3P%	FT%	RPG	APG	SPG	BPG	PPG
2011	New Orleans	6	0	18.5	.353	.000	.688	2.5	2.2	.2	.2	5.8
2013	Golden State	12	4	35.5	.506	.292	.896	4.4	4.7	.9	.3	17.2
2015	Brooklyn	6	0	25.5	.519	.333	1.000	4.2	4.5	1.2	.2	12.3
Career		24	4	28.8	.488	.273	.870	3.9	4.0	.8	.3	13.1

Personal life

Point guard Chris Duhon is his cousin.

Proven innocent, on the morning of Sunday, February 20, 2011, he was arrested for DUI in a suburb of Atlanta, while returning from an All-Star weekend party. He was going 66 in a 45 MPH zone and weaving uncontrollably. He failed a field sobriety test, and when taken to the police station, he registered under the legal limit of 0.08 on the breathalyzer, thus passing. He was charged with DUI and failure to maintain lane, and was released later that night.

[ Source: Wikipedia ]