Near East (2002–2004)

Xanthopoulos started his professional career with the Greek Basket League club Near East in 2002.

Panathinaikos (2004–2005)

Xanthopoulos transferred from Near East to the Greek powerhouse Panathinaikos in 2004.

PAOK (2005–2006)

In 2005, Xanthopoulos was loaned by Panathinaikos to PAOK.

Panathinaikos (2006–2007)

In 2006, Xanthopoulos returned to Panathinaikos Athens, and with them he won the European Triple Crown in 2007. His team accomplished this by winning the Greek League championship, the Greek Cup, and the EuroLeague all in the same season.

Panionios (2007–2009)

In 2007, Xanthopoulos transferred to the Greek club Panionios.

Panellinios (2009–2011)

In 2009, Xanthopoulos moved to the Greek club Panellinios.

Panionios (2011–2012)

In 2011, Xanthopoulos rejoined Panionios.

Panathinaikos (2012–2013)

In 2012, Xanthopoulos returned to Panathinaikos as an auxiliary player.^[2]

Obradoiro (2013–2014)

Xanthopoulos moved to the Spanish League club Obradoiro in 2013.

Panionios (2014–2015)

Xanthopoulos returned for a second stint with Panionios in 2014.

Aris (2015–2017)

In 2015, Xanthopoulos moved to Aris, where he spent two seasons.^[3]

AEK (2017–2019)

On July 5, 2017, Xanthopoulos moved to AEK Athens of the Greek Basket League, where he signed a one-year contract, with the option of renewal for another season.^[4] With AEK, he won the Greek Cup title, in 2018, as well as the FIBA Champions League title during the same season.

Peristeri (2019–2020)

On July 1, 2019, Xanthopoulos and AEK officially parted ways. Three days later, Xanthopoulos joined the Greek club Peristeri. He averaged 2.6 points, 1.6 rebounds and 3.5 assists per game with Peristeri. On August 13, 2020, Xanthopoulos left the team.^[5]

Kolossos Rodou (2020–2022)

On August 21, 2020, Xanthopoulos moved to the Greek club Kolossos Rodou.^[6] On June 30, 2021, he renewed his contract with the Greek island team, and was named team captain. In 17 games, he averaged 4.2 points (shooting with 36% from the 3-point line), 2.4 rebounds, 4.9 assists and 1 steal in 20 minutes per contest. He was ruled out just before the end of the season, due to an unspecified injury.

Return to AEK (2022–2023)

On August 29, 2022, Xanthopoulos returned to AEK for a second stint, following his Kolossos head coach Ilias Kantzouris to the team. In 22 league games, he averaged 2.4 points, 1 rebound and 3.8 assists in 14 minutes per contest.

Peristeri (2023–2025)

On July 29, 2023, Xanthopoulos returned to Peristeri, under head coach Vassilis Spanoulis.

On May 3, 2025, Xanthopoulos announced his retirement from professional basketball after the last game of the season against Panionios.

Greek junior national team

Xanthopoulos was a member of the Greek junior national teams. He won the bronze medal at the 2002 FIBA Europe Under-18 Championship, the bronze medal at the 2003 FIBA Under-19 World Cup, and the silver medal at the 2005 FIBA Under-21 World Cup. He also played at the 2004 FIBA Europe Under-20 Championship.

Greek senior national team

Xanthopoulos was also a member of the senior men's Greek national team. With Greece's senior national team, he played at the 2011 FIBA EuroBasket.

Domestic Leagues

FIBA Champions League

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