career regular season statistics      
    
          
        
          career playoff statistics        
      
      | Year | Team | League | GP         Games Played 
       | 
      GS         Games Started 
       | 
      MPG          Minutes played per game 
        | 
      FG%          Percentage of field goals made 
        | 
      3P%          Percentage of three-point field goals made 
        | 
      FT%          Percentage of free throws made 
        | 
      RPG          Total rebounds per game 
        | 
      APG          Assists per game 
        | 
      SPG          Steals per game 
        | 
      BPG          Blocked shots per game 
        | 
      TPG          Turnovers per game 
        | 
      PPG          Points per game 
        | 
    
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025-26 | Cleveland | NBA | 7 | 1 | 24.4 | .359 | .323 | .750 | 4.0 | 1.6 | 0.9 | 0.4 | 0.3 | 6.7 | 
| 2024-25 | Cleveland | NBA | 59 | 30 | 21.2 | .413 | .360 | .533 | 4.2 | 1.3 | 0.7 | 0.3 | 0.4 | 5.4 | 
| 2023-24 | Cleveland | NBA | 54 | 32 | 20.5 | .414 | .391 | .769 | 4.0 | 0.8 | 0.7 | 0.5 | 0.4 | 5.4 | 
| 2022-23 | Cleveland | NBA | 44 | 13 | 20.3 | .412 | .354 | .652 | 3.4 | 0.8 | 0.6 | 0.5 | 0.4 | 4.7 | 
| 2021-22 | Cleveland | NBA | 51 | 28 | 19.2 | .456 | .359 | .667 | 2.9 | 1.0 | 0.6 | 0.1 | 0.3 | 5.3 | 
| 2020-21 | Cleveland | NBA | 63 | 19 | 19.2 | .431 | .366 | .769 | 3.4 | 1.2 | 0.6 | 0.3 | 0.5 | 6.0 | 
| 2019-20 | Cleveland | NBA | 12 | 0 | 5.9 | .692 | .500 | - | 1.6 | 0.2 | 0.2 | 0.3 | 0.3 | 1.7 | 
| 2018-19 | Kansas St. | NCAA | 25 | 25 | 30.4 | .492 | .418 | .789 | 6.2 | 2.8 | 0.8 | 0.5 | 1.4 | 12.9 | 
| 2017-18 | Kansas St. | NCAA | 33 | 32 | 32.8 | .550 | .440 | .752 | 6.2 | 2.7 | 1.5 | 0.8 | 1.4 | 16.2 | 
| 2016-17 | Kansas St. | NCAA | 35 | 35 | 28 | .496 | .402 | .663 | 4.5 | 1.8 | 0.7 | 0.7 | 1.0 | 9.3 | 
| 2015-16 | Kansas St. | NCAA | 33 | 31 | 26.4 | .434 | .292 | .656 | 5.1 | 1.1 | 0.6 | 0.5 | 0.9 | 9.9 | 
| Total | NCAA | 126 | 123 | 29.3 | .498 | .386 | .711 | 5.4 | 2.1 | 0.9 | 0.6 | 1.2 | 12.0 | |
| Total | NBA | 290 | 123 | 19.6 | .426 | .367 | .683 | 3.6 | 1.0 | 0.6 | 0.3 | 0.4 | 5.3 | 
| Year | Team | League | GP         Games Played 
       | 
      GS         Games Started 
       | 
      MPG          Minutes played per game 
        | 
      FG%          Percentage of field goals made 
        | 
      3P%          Percentage of three-point field goals made 
        | 
      FT%          Percentage of free throws made 
        | 
      RPG          Total rebounds per game 
        | 
      APG          Assists per game 
        | 
      SPG          Steals per game 
        | 
      BPG          Blocked shots per game 
        | 
      TPG          Turnovers per game 
        | 
      PPG          Points per game 
        | 
    
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024-25 | Cleveland | NBA | 9 | 1 | 15.8 | .333 | .214 | - | 4.2 | 0.7 | 0.3 | 0.1 | 0.3 | 1.7 | 
| 2023-24 | Cleveland | NBA | 3 | 1 | 21.0 | .308 | .300 | - | 2.0 | 1.7 | 0.3 | 0.7 | 0.7 | 3.7 | 
| 2022-23 | Cleveland | NBA | 2 | 0 | 5.5 | - | - | 1 | 1.5 | 0.0 | 0.0 | 0.0 | 0.0 | 1.0 | 
| Total | NBA | 14 | 2 | 15.4 | .313 | .240 | 1 | 3.4 | 0.8 | 0.3 | 0.2 | 0.4 | 2.0 |