2015-19 After going undrafted in the
2015 NBA draft, Kyser joined the
Toronto Raptors for the
2015 NBA Summer League. He appeared in four games playing for the Raptors in Las Vegas and averaged 3.5 points and 4.0 rebounds in 14.6 minutes per game. On July 23, 2015, he signed with the Raptors, only to be waived by the team on October 24 after appearing in one preseason game. On October 31, he signed with the
Raptors 905 as an affiliate player. On August 30, 2016, Kyser signed with
Tadamon Zouk of the
Lebanese Basketball League, however, he left the team before playing for them and signed with the
Salt Lake City Stars on November 25. The next day, he made his debut for the Stars in a 117–84 loss to the
Texas Legends, recording eight points, two rebounds, and one assist in 15 minutes off the bench. On March 3, 2017, Kyser was waived by the Stars. On September 23, 2017, Kyser joined
Enosis Neon Paralimni of the
Cypriot League where he would average 15 points, 14 rebounds and 3 blocks per game. On November 29, 2017, he left Enosis in order to join
Kymis of the
Greek Basket League. During the season, he led the league in blocks with 1.9 blocks per game, while also averaging 6.9 points and 5.0 rebounds in 15.5 minutes per game with a 62.4% field goal percentage. He subsequently spent the 2018–19 season with Greek club
Aris Thessaloniki. During the season, he was 10th in the league with 0.8 blocks per game, while also averaging 5.8 points and 3.8 rebounds in 17.3 minutes per game with a 50.4% field goal percentage. On October 26, 2019, Kyser was drafted 10th overall by the
Lakeland Magic of the
NBA G League. He averaged 9.0 points, 5.8 rebounds, and 1.7 blocks in 26.2 minutes per game, over 41 games. Kyser was waived on March 10, 2020.
2020-present On July 31, he signed with
VEF Rīga of the
Latvian–Estonian Basketball League. Kyser averaged 11.8 points, 1.8 blocks (leading the Estonian-Latvian Basketball League), and 7.3 rebounds (9th in the Estonian-Latvian Basketball League) per game, with a 56.0% field goal percentage. During the season, he averaged 1.4 blocks per game (4th in the league), while also averaging 11.0 points and 5.9 rebounds in 23.3 minutes per game with a 61.8% field goal percentage. During the season, he averaged 1.2 blocks per game (6th in the league), while also averaging 7.6 points and 3.7 rebounds in 20.0 minutes per game with a 52.0% field goal percentage. During the season, he averaged 1.4 blocks per game (4th in the league), while also averaging 10.9 points and 7.0 rebounds (9th in the league) in 32.9 minutes per game with a 51.3% field goal percentage. During the season, he averaged 1.0 blocks per game (10th in the league), while also averaging 9.8 points and 5.8 rebounds in 21.9 minutes per game with a 59.7% field goal percentage. On July 25, 2024, he signed with
Hapoel Holon of the
Israeli Basketball Premier League. On July 14, 2025, he signed with
EWE Baskets Oldenburg in the
Basketball Bundesliga (BBL). ==Career statistics==