| Nina Williams vs King | 12–12 | 50.00% |
| Nina Williams vs Reina | 17–6 | 73.91% |
| Nina Williams vs Kazuya | 13–3 | 81.25% |
| Nina Williams vs Lili | 10–6 | 62.50% |
| Nina Williams vs Leo | 10–5 | 66.67% |
| Nina Williams vs Paul | 7–7 | 50.00% |
| Nina Williams vs Dragunov | 10–4 | 71.43% |
| Nina Williams vs Yoshimitsu | 6–7 | 46.15% |
| Nina Williams vs Azucena | 10–2 | 83.33% |
| Nina Williams vs Bryan | 7–4 | 63.64% |
| Nina Williams vs Lee | 7–4 | 63.64% |
| Nina Williams vs Feng | 7–3 | 70.00% |
| Nina Williams vs Alisa | 5–5 | 50.00% |
| Nina Williams vs Xiaoyu | 6–3 | 66.67% |
| Nina Williams vs Hwoarang | 6–2 | 75.00% |
| Nina Williams vs Jack-8 | 4–4 | 50.00% |
| Nina Williams vs Law | 5–2 | 71.43% |
| Nina Williams vs Lars | 5–2 | 71.43% |
| Nina Williams vs Victor | 5–2 | 71.43% |
| Nina Williams vs Claudio | 3–3 | 50.00% |
| Nina Williams vs Jun | 6–0 | 100.00% |
| Nina Williams vs Jin | 3–2 | 60.00% |
| Nina Williams vs Shaheen | 2–3 | 40.00% |
| Nina Williams vs Zafina | 4–1 | 80.00% |
| Nina Williams vs Asuka | 2–2 | 50.00% |
| Nina Williams vs Devil Jin | 1–3 | 25.00% |
| Nina Williams vs Eddy | 3–1 | 75.00% |
| Nina Williams vs Nina | 2–1 | 66.67% |
| Nina Williams vs Kuma | 0–3 | 0.00% |
| Nina Williams vs Leroy | 0–3 | 0.00% |
| Nina Williams vs Steve | 1–1 | 50.00% |
| Nina Williams vs Panda | 2–0 | 100.00% |
| Nina Williams vs Raven | 0–1 | 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.