| Penalties | Players | VS Club | Date | |
|---|---|---|---|---|
| 7 | Hayden Parker | Queensland Reds | 12-05-2018 | Match details |
| 3 | Hayden Parker | Western Stormers | 19-05-2018 | Match details |
| 2 | Hayden Parker | Brumbies | 24-02-2018 | Match details |
| 2 | Hayden Parker | Crusaders | 21-04-2018 | Match details |
| 2 | Hayden Parker | Melbourne Rebels | 25-05-2018 | Match details |
| 2 | Hayden Parker | New South Wales | 07-07-2018 | Match details |
| 2 | Hayden Parker | Queensland Reds | 13-07-2018 | Match details |
| 1 | Ryoto Nakamura | Melbourne Rebels | 03-03-2018 | Match details |
| 1 | Harumichi Tatekawa | Sharks | 10-03-2018 | Match details |
| 1 | Will Tupou | Lions | 17-03-2018 | Match details |
| 1 | Yu Tamura | New South Wales | 07-04-2018 | Match details |
| 1 | Yu Tamura | Blues | 14-04-2018 | Match details |
| 1 | Hayden Parker | Hurricanes | 27-04-2018 | Match details |
| 1 | Hayden Parker | Brumbies | 03-06-2018 | Match details |
