| Title | Highest Position | Date | Buy |
|---|---|---|---|
| Ultimate NRG Megamix (Mixed by Alex K) | 84 | 27 Jan 2024 | $20.99 buy |
| Unreleased | 26 | 29 Aug 2014 | $9.99 buy |
| Ultimate NRG - Best Of 1996-2016 | 31 | 25 Nov 2016 | $20.99 buy |
| Ultimate NRG (Best Of 1996-2016) | 98 | 13 Apr 2024 | $20.99 buy |
Alex K chart performance in other countries: