| IshimuraKatouWR vs Reina | 6–8 | 42.86% |
| IshimuraKatouWR vs Jin | 1–8 | 11.11% |
| IshimuraKatouWR vs Kazuya | 2–5 | 28.57% |
| IshimuraKatouWR vs Jun | 0–6 | 0.00% |
| IshimuraKatouWR vs King | 1–4 | 20.00% |
| IshimuraKatouWR vs Dragunov | 2–3 | 40.00% |
| IshimuraKatouWR vs Devil Jin | 1–3 | 25.00% |
| IshimuraKatouWR vs Leo | 0–4 | 0.00% |
| IshimuraKatouWR vs Kuma | 0–4 | 0.00% |
| IshimuraKatouWR vs Law | 2–0 | 100.00% |
| IshimuraKatouWR vs Yoshimitsu | 2–0 | 100.00% |
| IshimuraKatouWR vs Hwoarang | 0–2 | 0.00% |
| IshimuraKatouWR vs Bryan | 1–1 | 50.00% |
| IshimuraKatouWR vs Asuka | 1–1 | 50.00% |
| IshimuraKatouWR vs Lars | 1–1 | 50.00% |
| IshimuraKatouWR vs Alisa | 1–1 | 50.00% |
| IshimuraKatouWR vs Shaheen | 0–2 | 0.00% |
| IshimuraKatouWR vs Victor | 0–2 | 0.00% |
| IshimuraKatouWR vs Raven | 0–2 | 0.00% |
| IshimuraKatouWR vs Fahkumram | 0–2 | 0.00% |
| IshimuraKatouWR vs Xiaoyu | 0–1 | 0.00% |
| IshimuraKatouWR vs Nina | 0–1 | 0.00% |
| IshimuraKatouWR vs Zafina | 1–0 | 100.00% |
| IshimuraKatouWR vs Azucena | 1–0 | 100.00% |
| IshimuraKatouWR vs Heihachi | 0–1 | 0.00% |
| IshimuraKatouWR vs Clive | 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.