| Nivek vs Reina | 17–9 | 65.38% |
| Nivek vs Miary Zo | 7–18 | 28.00% |
| Nivek vs Hwoarang | 4–14 | 22.22% |
| Nivek vs Jin | 6–12 | 33.33% |
| Nivek vs Kazuya | 6–8 | 42.86% |
| Nivek vs Steve | 7–7 | 50.00% |
| Nivek vs Armor King | 5–9 | 35.71% |
| Nivek vs Paul | 6–6 | 50.00% |
| Nivek vs Law | 7–3 | 70.00% |
| Nivek vs Victor | 6–4 | 60.00% |
| Nivek vs Lili | 5–4 | 55.56% |
| Nivek vs Devil Jin | 2–6 | 25.00% |
| Nivek vs Jun | 2–6 | 25.00% |
| Nivek vs Bryan | 2–5 | 28.57% |
| Nivek vs Eddy | 1–6 | 14.29% |
| Nivek vs Heihachi | 3–4 | 42.86% |
| Nivek vs King | 2–4 | 33.33% |
| Nivek vs Azucena | 2–3 | 40.00% |
| Nivek vs Yoshimitsu | 1–2 | 33.33% |
| Nivek vs Xiaoyu | 1–2 | 33.33% |
| Nivek vs Nina | 1–2 | 33.33% |
| Nivek vs Leroy | 2–1 | 66.67% |
| Nivek vs Clive | 0–3 | 0.00% |
| Nivek vs Leo | 0–2 | 0.00% |
| Nivek vs Lars | 2–0 | 100.00% |
| Nivek vs Dragunov | 0–1 | 0.00% |
| Nivek vs Claudio | 0–1 | 0.00% |
| Nivek vs Anna | 1–0 | 100.00% |
| Nivek vs Fahkumram | 1–0 | 100.00% |
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.