| NIRA vs Jin | 13–15 | 46.43% |
| NIRA vs Hwoarang | 10–17 | 37.04% |
| NIRA vs Lili | 20–7 | 74.07% |
| NIRA vs Jun | 11–14 | 44.00% |
| NIRA vs Reina | 16–9 | 64.00% |
| NIRA vs Bryan | 9–13 | 40.91% |
| NIRA vs Dragunov | 11–11 | 50.00% |
| NIRA vs Victor | 7–15 | 31.82% |
| NIRA vs Paul | 13–7 | 65.00% |
| NIRA vs Law | 10–10 | 50.00% |
| NIRA vs Asuka | 6–14 | 30.00% |
| NIRA vs Kazuya | 9–10 | 47.37% |
| NIRA vs Steve | 11–8 | 57.89% |
| NIRA vs Azucena | 11–6 | 64.71% |
| NIRA vs Alisa | 8–6 | 57.14% |
| NIRA vs Claudio | 6–8 | 42.86% |
| NIRA vs King | 7–6 | 53.85% |
| NIRA vs Feng | 10–3 | 76.92% |
| NIRA vs Yoshimitsu | 6–4 | 60.00% |
| NIRA vs Shaheen | 5–5 | 50.00% |
| NIRA vs Leroy | 7–3 | 70.00% |
| NIRA vs Devil Jin | 3–6 | 33.33% |
| NIRA vs Lars | 7–2 | 77.78% |
| NIRA vs Xiaoyu | 3–4 | 42.86% |
| NIRA vs Nina | 3–3 | 50.00% |
| NIRA vs Lee | 3–3 | 50.00% |
| NIRA vs Eddy | 3–3 | 50.00% |
| NIRA vs Jack-8 | 3–2 | 60.00% |
| NIRA vs Raven | 3–2 | 60.00% |
| NIRA vs Leo | 3–1 | 75.00% |
| NIRA vs Zafina | 2–1 | 66.67% |
| NIRA vs Clive | 2–0 | 100.00% |
| NIRA vs Kuma | 1–0 | 100.00% |
| NIRA 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.