| Nyxus vs Reina | 15–17 | 46.88% |
| Nyxus vs Hwoarang | 12–17 | 41.38% |
| Nyxus vs King | 10–17 | 37.04% |
| Nyxus vs Eddy | 7–15 | 31.82% |
| Nyxus vs Jun | 11–10 | 52.38% |
| Nyxus vs Paul | 6–12 | 33.33% |
| Nyxus vs Jin | 3–13 | 18.75% |
| Nyxus vs Steve | 4–12 | 25.00% |
| Nyxus vs Lili | 7–9 | 43.75% |
| Nyxus vs Lee | 6–7 | 46.15% |
| Nyxus vs Kazuya | 5–7 | 41.67% |
| Nyxus vs Bryan | 3–8 | 27.27% |
| Nyxus vs Lars | 3–8 | 27.27% |
| Nyxus vs Nina | 6–5 | 54.55% |
| Nyxus vs Victor | 4–6 | 40.00% |
| Nyxus vs Asuka | 5–4 | 55.56% |
| Nyxus vs Law | 1–6 | 14.29% |
| Nyxus vs Xiaoyu | 4–3 | 57.14% |
| Nyxus vs Dragunov | 2–4 | 33.33% |
| Nyxus vs Leo | 2–4 | 33.33% |
| Nyxus vs Claudio | 3–2 | 60.00% |
| Nyxus vs Azucena | 1–4 | 20.00% |
| Nyxus vs Yoshimitsu | 1–3 | 25.00% |
| Nyxus vs Alisa | 0–4 | 0.00% |
| Nyxus vs Feng | 1–2 | 33.33% |
| Nyxus vs Kuma | 1–2 | 33.33% |
| Nyxus vs Zafina | 1–2 | 33.33% |
| Nyxus vs Raven | 1–2 | 33.33% |
| Nyxus vs Panda | 0–2 | 0.00% |
Limitations
This data is often requested to give insight into which characters you have more trouble with than others, but it is not particularly helpful for that. The main issue is that it is heavily skewed by how strong the opponents you play are.
For example, this data suggests my worst matchup is clearly vs Reina, but that's just because most of those games are vs Yagami.
There is a way to account for this being worked on. The central idea is to assign each matchup a rating vs you which adjusts based on the result, much like the regular rating but also based on the rating of each player. With this, it would give a better summary of how well you perform vs each character.
In the meantime, this page is here to present the data as requested.