| Oishi vs Heihachi | 9–27 | 25.00% |
| Oishi vs King | 14–20 | 41.18% |
| Oishi vs Law | 9–22 | 29.03% |
| Oishi vs Jin | 16–14 | 53.33% |
| Oishi vs Steve | 17–13 | 56.67% |
| Oishi vs Kazuya | 10–18 | 35.71% |
| Oishi vs Jun | 13–9 | 59.09% |
| Oishi vs Lidia | 11–11 | 50.00% |
| Oishi vs Reina | 10–10 | 50.00% |
| Oishi vs Hwoarang | 12–6 | 66.67% |
| Oishi vs Asuka | 8–10 | 44.44% |
| Oishi vs Lars | 10–8 | 55.56% |
| Oishi vs Victor | 10–8 | 55.56% |
| Oishi vs Bryan | 5–12 | 29.41% |
| Oishi vs Yoshimitsu | 9–7 | 56.25% |
| Oishi vs Xiaoyu | 10–5 | 66.67% |
| Oishi vs Devil Jin | 8–7 | 53.33% |
| Oishi vs Lili | 10–4 | 71.43% |
| Oishi vs Dragunov | 4–9 | 30.77% |
| Oishi vs Nina | 6–7 | 46.15% |
| Oishi vs Lee | 8–5 | 61.54% |
| Oishi vs Leo | 8–4 | 66.67% |
| Oishi vs Leroy | 7–5 | 58.33% |
| Oishi vs Azucena | 3–8 | 27.27% |
| Oishi vs Shaheen | 0–8 | 0.00% |
| Oishi vs Eddy | 5–3 | 62.50% |
| Oishi vs Paul | 3–4 | 42.86% |
| Oishi vs Jack-8 | 7–0 | 100.00% |
| Oishi vs Feng | 4–2 | 66.67% |
| Oishi vs Alisa | 2–4 | 33.33% |
| Oishi vs Panda | 2–3 | 40.00% |
| Oishi vs Claudio | 0–2 | 0.00% |
| Oishi vs Kuma | 0–2 | 0.00% |
| Oishi vs Raven | 1–1 | 50.00% |
| Oishi vs Zafina | 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.