The champions that counter Yuumi hardest in support are Leona (42.95%), Braum (42.96%) and Poppy (43.52%) — those are Yuumi's own pooled win rates. The easiest matchups are Swain (53.68%), Brand (52.61%) and Vel'Koz (51.05%).
35 researched matchup guides for Yuumi in support, most-played first. Win rates are Yuumi's side, pooled Emerald+ games sampled July 2026.
| Matchup | Win rate | Games | Favour |
|---|---|---|---|
| Yuumi vs Thresh | 44.2% | 17,032 | Thresh favoured |
| Yuumi vs Lulu | 46.97% | 16,286 | Leans Lulu |
| Yuumi vs Nautilus | 44.36% | 14,384 | Nautilus favoured |
| Yuumi vs Seraphine | 49% | 14,147 | Leans Seraphine |
| Yuumi vs Senna | 45.7% | 11,310 | Leans Senna |
| Yuumi vs Nami | 48.28% | 10,602 | Leans Nami |
| Yuumi vs Leona | 42.95% | 10,431 | Leona favoured |
| Yuumi vs Karma | 50.15% | 9,336 | Even |
| Yuumi vs Pyke | 48.66% | 9,019 | Leans Pyke |
| Yuumi vs Lux | 50.48% | 8,296 | Even |
| Yuumi vs Milio | 48.49% | 8,111 | Leans Milio |
| Yuumi vs Bard | 47.2% | 7,890 | Leans Bard |
| Yuumi vs Soraka | 49.27% | 6,690 | Even |
| Yuumi vs Blitzcrank | 45.93% | 6,454 | Leans Blitzcrank |
| Yuumi vs Alistar | 43.98% | 5,179 | Alistar favoured |
| Yuumi vs Xerath | 50% | 5,004 | Even |
| Yuumi vs Rell | 43.79% | 4,981 | Rell favoured |
| Yuumi vs Braum | 42.96% | 4,832 | Braum favoured |
| Yuumi vs Vel'Koz | 51.05% | 4,505 | Leans Yuumi |
| Yuumi vs Sona | 46.4% | 4,319 | Leans Sona |
| Yuumi vs Janna | 48.31% | 4,134 | Leans Janna |
| Yuumi vs Rakan | 46.12% | 3,957 | Leans Rakan |
| Yuumi vs Zilean | 47.79% | 3,825 | Leans Zilean |
| Yuumi vs Morgana | 50.97% | 3,614 | Leans Yuumi |
| Yuumi vs Zyra | 48.91% | 3,204 | Leans Zyra |
| Yuumi vs Galio | 47.87% | 3,123 | Leans Galio |
| Yuumi vs Hwei | 49.2% | 3,055 | Leans Hwei |
| Yuumi vs Tahm Kench | 46.9% | 3,032 | Leans Tahm Kench |
| Yuumi vs Brand | 52.61% | 3,005 | Leans Yuumi |
| Yuumi vs Swain | 53.68% | 2,973 | Leans Yuumi |
| Yuumi vs Poppy | 43.52% | 2,780 | Poppy favoured |
| Yuumi vs Neeko | 50.97% | 2,005 | Leans Yuumi |
| Yuumi vs Maokai | 45.58% | 1,968 | Leans Maokai |
| Yuumi vs Taric | 47.93% | 1,400 | Leans Taric |
| Yuumi vs Renata Glasc | 48.61% | 1,189 | Leans Renata Glasc |