| Nirsinho vs Jin | 142–106 | 57.26% |
| Nirsinho vs King | 138–87 | 61.33% |
| Nirsinho vs Kazuya | 109–67 | 61.93% |
| Nirsinho vs Armor King | 93–63 | 59.62% |
| Nirsinho vs Bryan | 57–66 | 46.34% |
| Nirsinho vs Lili | 59–64 | 47.97% |
| Nirsinho vs Law | 64–56 | 53.33% |
| Nirsinho vs Reina | 67–52 | 56.30% |
| Nirsinho vs Heihachi | 64–53 | 54.70% |
| Nirsinho vs Paul | 63–47 | 57.27% |
| Nirsinho vs Nina | 50–57 | 46.73% |
| Nirsinho vs Dragunov | 53–53 | 50.00% |
| Nirsinho vs Eddy | 53–50 | 51.46% |
| Nirsinho vs Hwoarang | 52–42 | 55.32% |
| Nirsinho vs Asuka | 56–38 | 59.57% |
| Nirsinho vs Steve | 43–45 | 48.86% |
| Nirsinho vs Azucena | 31–42 | 42.47% |
| Nirsinho vs Lee | 29–42 | 40.85% |
| Nirsinho vs Alisa | 37–30 | 55.22% |
| Nirsinho vs Leroy | 39–28 | 58.21% |
| Nirsinho vs Jun | 36–29 | 55.38% |
| Nirsinho vs Victor | 25–35 | 41.67% |
| Nirsinho vs Lars | 29–28 | 50.88% |
| Nirsinho vs Xiaoyu | 26–28 | 48.15% |
| Nirsinho vs Lidia | 30–24 | 55.56% |
| Nirsinho vs Leo | 22–29 | 43.14% |
| Nirsinho vs Devil Jin | 19–29 | 39.58% |
| Nirsinho vs Yoshimitsu | 24–21 | 53.33% |
| Nirsinho vs Feng | 23–20 | 53.49% |
| Nirsinho vs Jack-8 | 18–20 | 47.37% |
| Nirsinho vs Claudio | 16–16 | 50.00% |
| Nirsinho vs Anna | 15–17 | 46.88% |
| Nirsinho vs Shaheen | 17–14 | 54.84% |
| Nirsinho vs Zafina | 12–15 | 44.44% |
| Nirsinho vs Raven | 13–12 | 52.00% |
| Nirsinho vs Fahkumram | 15–8 | 65.22% |
| Nirsinho vs Kuma | 6–10 | 37.50% |
| Nirsinho vs Miary Zo | 10–5 | 66.67% |
| Nirsinho vs Clive | 5–7 | 41.67% |
| Nirsinho vs Panda | 6–4 | 60.00% |
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.