Kalaitzakis provided 25 points (10-19 FG, 2-7 3Pt, 3-5 FT), four rebounds, six assists and three steals across 45 minutes during Friday's 120-101 loss to the Lakers.
Kalaitzakis finished with 17 points (6-13 FG, 2-7 3Pt, 3-8 FT), one rebound, two assists, one block and three steals across 43 minutes during Tuesday's 98-94 victory over Portland.
Kalaitzakis will start Tuesday against the Trail Blazers, Brandon Rahbar of DailyThunder.com reports.
The Thunder signed Kalaitzakis to a 10-day contract Tuesday, Joe Mussatto of The Oklahoman reports.
Kalaitzakis logged 19 points (8-13 FG, 1-4 3Pt, 1-3 FT), three rebounds, three assists and a block across 32 minutes in Friday's 124-114 loss to the Iowa Wolves.
Kalaitzakis registered 12 points (3-5 FG, 2-3 3Pt, 2-2 FT), three rebounds, one assist and one steal across 16 minutes in Thursday's 114-99 loss to the Stockton Kings.
Kalaitzakis recorded 14 points (5-12 FG, 0-6 3Pt, 2-2 FT), eight rebounds, four assists and a steal across 36 minutes in Friday's 107-103 loss to the Iowa Wolves.
Kalaitzakis (rest) tallied 10 points (3-7 FG, 0-1 3Pt, 2-2 FT), five rebounds, an assist, a block and a steal across 14 minutes in Friday's 126-118 loss to the Rio Grande Valley Vipers.
Kalaitzakis was rested for Wednesday's loss to the Sioux Falls Skyforce.
Kalaitzakis recorded 19 points (6-12 FG, 3-7 3Pt, 3-4 FT), 10 rebounds, two assists and three steals in 34 minutes during Monday's G League win over the Hustle.