| Nidoking vs Dragunov | 58–81 | 41.73% |
| Nidoking vs Bryan | 60–65 | 48.00% |
| Nidoking vs Victor | 51–49 | 51.00% |
| Nidoking vs Hwoarang | 53–42 | 55.79% |
| Nidoking vs Lili | 48–47 | 50.53% |
| Nidoking vs Reina | 55–40 | 57.89% |
| Nidoking vs Kazuya | 52–39 | 57.14% |
| Nidoking vs Steve | 48–42 | 53.33% |
| Nidoking vs King | 47–39 | 54.65% |
| Nidoking vs Jin | 33–47 | 41.25% |
| Nidoking vs Devil Jin | 35–43 | 44.87% |
| Nidoking vs Asuka | 30–47 | 38.96% |
| Nidoking vs Feng | 36–39 | 48.00% |
| Nidoking vs Leroy | 31–31 | 50.00% |
| Nidoking vs Claudio | 33–28 | 54.10% |
| Nidoking vs Eddy | 30–31 | 49.18% |
| Nidoking vs Law | 30–30 | 50.00% |
| Nidoking vs Paul | 27–32 | 45.76% |
| Nidoking vs Jun | 35–22 | 61.40% |
| Nidoking vs Nina | 27–29 | 48.21% |
| Nidoking vs Azucena | 27–29 | 48.21% |
| Nidoking vs Yoshimitsu | 19–31 | 38.00% |
| Nidoking vs Jack-8 | 22–28 | 44.00% |
| Nidoking vs Lee | 26–23 | 53.06% |
| Nidoking vs Shaheen | 18–30 | 37.50% |
| Nidoking vs Leo | 22–24 | 47.83% |
| Nidoking vs Alisa | 25–20 | 55.56% |
| Nidoking vs Xiaoyu | 22–16 | 57.89% |
| Nidoking vs Lars | 13–22 | 37.14% |
| Nidoking vs Kuma | 16–17 | 48.48% |
| Nidoking vs Lidia | 13–12 | 52.00% |
| Nidoking vs Raven | 12–10 | 54.55% |
| Nidoking vs Zafina | 2–19 | 9.52% |
| Nidoking vs Heihachi | 3–12 | 20.00% |
| Nidoking vs Panda | 5–7 | 41.67% |
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.