The champions that counter Janna hardest in support are Taric (45.88%), Sona (48.17%) and Thresh (48.57%) — those are Janna's own pooled win rates. The easiest matchups are Alistar (55.92%), Swain (55.88%) and Neeko (55.15%).
35 researched matchup guides for Janna in support, most-played first. Win rates are Janna's side, pooled Emerald+ games sampled July 2026.
| Matchup | Win rate | Games | Favour |
|---|---|---|---|
| Janna vs Thresh | 48.57% | 12,542 | Leans Thresh |
| Janna vs Seraphine | 49.98% | 9,906 | Even |
| Janna vs Nami | 51.47% | 9,333 | Leans Janna |
| Janna vs Nautilus | 51.67% | 9,149 | Leans Janna |
| Janna vs Lulu | 51.15% | 8,892 | Leans Janna |
| Janna vs Leona | 50.76% | 7,835 | Leans Janna |
| Janna vs Senna | 48.6% | 7,813 | Leans Senna |
| Janna vs Bard | 51% | 6,981 | Leans Janna |
| Janna vs Karma | 52.24% | 6,777 | Leans Janna |
| Janna vs Milio | 50.84% | 6,446 | Leans Janna |
| Janna vs Pyke | 52.73% | 6,051 | Leans Janna |
| Janna vs Soraka | 48.59% | 4,867 | Leans Soraka |
| Janna vs Lux | 51.5% | 4,866 | Leans Janna |
| Janna vs Blitzcrank | 51.21% | 4,861 | Leans Janna |
| Janna vs Rell | 51.63% | 4,306 | Leans Janna |
| Janna vs Sona | 48.17% | 4,158 | Leans Sona |
| Janna vs Yuumi | 51.69% | 4,134 | Leans Janna |
| Janna vs Alistar | 55.92% | 4,083 | Janna favoured |
| Janna vs Rakan | 51.19% | 3,864 | Leans Janna |
| Janna vs Braum | 50.2% | 3,428 | Even |
| Janna vs Zilean | 50.24% | 3,376 | Even |
| Janna vs Vel'Koz | 52.55% | 3,264 | Leans Janna |
| Janna vs Xerath | 51.38% | 2,851 | Leans Janna |
| Janna vs Morgana | 52.57% | 2,625 | Leans Janna |
| Janna vs Hwei | 52.63% | 2,225 | Leans Janna |
| Janna vs Swain | 55.88% | 2,178 | Janna favoured |
| Janna vs Tahm Kench | 51.09% | 2,116 | Leans Janna |
| Janna vs Zyra | 50.92% | 2,113 | Leans Janna |
| Janna vs Galio | 53.96% | 2,022 | Leans Janna |
| Janna vs Brand | 54.12% | 1,966 | Leans Janna |
| Janna vs Poppy | 53.64% | 1,594 | Leans Janna |
| Janna vs Maokai | 50.19% | 1,530 | Even |
| Janna vs Neeko | 55.15% | 1,514 | Janna favoured |
| Janna vs Taric | 45.88% | 1,299 | Leans Taric |
| Janna vs Renata Glasc | 52.33% | 1,158 | Leans Janna |