James Harden and Russell Westbrook are tied for the most games with 10+ turnovers, with 11 games.

most single games by a player with 10 turnover
Interpreted as:
most single regular-season games by a player with 10 or more turnover
HardenWestbrookKiddBryantWadeIversonCurryNashStackhouseJohnsonOlajuwonDrexlerTownsJokicWallDurantRoseJamesLaettnerPippenMaloneHarperWilliams1111644433333322222222222
NAMEGPTOVMPGPPGRPGAPGSPGBPGTPGFGMFGAFG%3PM3PA3P%FTMFTAFT%MINPTSREBASTSTLBLKPF+/-
James HardenJames Harden1111537.934.48.511.02.50.610.59.318.749.53.88.942.912.013.390.44173789412128734+17
Russell WestbrookRussell Westbrook1111235.326.511.49.21.90.410.29.321.642.91.35.722.26.78.777.138829212510121442-11
Jason KiddJason Kidd66842.222.87.76.33.70.511.38.220.539.81.75.828.64.86.278.4253137463822318-23
Kobe BryantKobe Bryant44141.130.88.06.52.30.310.39.822.044.32.36.534.69.010.883.71641233226916+5
Dwyane WadeDwyane Wade44238.525.57.05.02.50.510.56.517.337.70.00.50.012.513.592.6154102282010213+20
Allen IversonAllen Iverson44342.031.03.36.34.30.310.810.023.542.61.86.029.29.311.580.4168124132517110-27
Stephen CurryStephen Curry33137.226.33.78.72.70.010.39.317.353.85.310.053.32.32.3100.0112791126809-14
Steve NashSteve Nash33041.223.03.713.01.00.010.09.318.750.03.37.047.61.01.0100.01246911393012+4
Jerry StackhouseJerry Stackhouse33140.725.34.37.31.00.310.37.316.045.81.33.736.49.310.093.3122761322314+25
Kevin JohnsonKevin Johnson33144.035.76.08.30.30.310.39.321.343.80.00.70.017.018.791.113210718251111
Hakeem OlajuwonHakeem Olajuwon33141.737.016.33.32.03.710.315.025.758.40.30.750.06.710.066.7125111491061114
Clyde DrexlerClyde Drexler33039.317.07.310.04.01.310.05.713.342.50.72.033.35.06.083.311851223012411
Karl-Anthony TownsKarl-Anthony Towns22132.919.016.53.51.01.010.57.010.566.71.52.075.03.54.087.56638337229+13
Nikola JokicNikola Jokic22037.324.08.08.01.01.010.07.513.057.71.54.533.37.58.093.8754816162270
John WallJohn Wall22138.921.54.510.02.51.010.57.518.041.71.53.542.95.05.0100.07843920524+14
Kevin DurantKevin Durant22139.028.08.54.51.00.510.59.517.554.31.55.030.07.59.083.37856179215+13
Derrick RoseDerrick Rose22142.430.55.53.01.51.010.512.528.543.92.07.526.73.54.577.88561116322+4
LeBron JamesLeBron James22146.535.08.07.04.00.510.513.523.058.71.56.025.06.58.081.393701614813+13
Christian LaettnerChristian Laettner22042.516.06.55.51.53.010.05.512.544.00.00.05.07.071.485321311366
Scottie PippenScottie Pippen22442.522.511.04.51.50.012.08.520.541.52.06.033.33.56.058.38545229309
Karl MaloneKarl Malone22033.525.014.01.01.50.010.09.017.052.90.00.50.07.010.070.06750282307
Ron HarperRon Harper22139.022.54.04.01.51.010.58.021.537.22.55.050.04.05.080.0784588328
Buck WilliamsBuck Williams22036.513.58.51.51.01.010.04.55.090.00.00.04.56.075.073271732211
Magic JohnsonMagic Johnson22234.510.07.514.52.00.011.03.57.546.70.01.00.03.04.075.069201529403
Isiah ThomasIsiah Thomas22144.526.03.513.53.00.510.511.522.052.30.01.50.03.03.0100.08952727613
StatMuse has game-level data for turnovers going back to the 1984-85 season.

Try also: