338Canada Pollster Ratings
2018 Ontario General Election
June 7, 2018
| Polling firm | LPO | PCPO | NDP | GPO | Leader | 338 Score* | 338 Grade |
|---|---|---|---|---|---|---|---|
| Election results | 19.6 | 40.5 | 33.6 | 4.6 | PC +6.9 | ||
| Mainstreet Research | 20 | 39 | 34 | 5 | PC +5 | 2.7 | A+ |
| Forum Research | 21 | 39 | 34 | 5 | PC +5 | 3.7 | A+ |
| EKOS | 19 | 39 | 35 | 5 | PC +4 | 3.8 | A+ |
| Ipsos | 19 | 39 | 36 | 6 | PC +3 | 5.5 | A+ |
| Research Co. | 20 | 39 | 37 | 4 | PC +2 | 5.8 | A |
| Léger | 18 | 39 | 38 | 5 | PC +1 | 7.8 | A |
| Pollara | 17 | 38 | 38 | 6 | Égalité/Tie | 10.5 | B |
| H+K Strategies | 19 | 37 | 39 | 6 | NDP +2 | 10.6 | B− |
| Innovative Research | 21 | 34 | 36 | 6 | NDP +2 | 11.7 | B− |
| Angus Reid | 17 | 37 | 39 | 5 | NDP +2 | 11.8 | B− |
| Abacus Data | 23 | 33 | 37 | 5 | NDP +4 | 15.1 | C+ |