| kazama iroha vs Reina | 6–4 | 60.00% |
| kazama iroha vs Clive | 2–8 | 20.00% |
| kazama iroha vs King | 6–3 | 66.67% |
| kazama iroha vs Kazuya | 3–4 | 42.86% |
| kazama iroha vs Steve | 3–4 | 42.86% |
| kazama iroha vs Xiaoyu | 4–1 | 80.00% |
| kazama iroha vs Jin | 3–2 | 60.00% |
| kazama iroha vs Dragunov | 1–4 | 20.00% |
| kazama iroha vs Leo | 3–2 | 60.00% |
| kazama iroha vs Victor | 2–3 | 40.00% |
| kazama iroha vs Bryan | 4–0 | 100.00% |
| kazama iroha vs Raven | 0–4 | 0.00% |
| kazama iroha vs Yoshimitsu | 0–3 | 0.00% |
| kazama iroha vs Asuka | 0–3 | 0.00% |
| kazama iroha vs Claudio | 1–2 | 33.33% |
| kazama iroha vs Miary Zo | 2–1 | 66.67% |
| kazama iroha vs Paul | 0–2 | 0.00% |
| kazama iroha vs Law | 2–0 | 100.00% |
| kazama iroha vs Lili | 2–0 | 100.00% |
| kazama iroha vs Azucena | 2–0 | 100.00% |
| kazama iroha vs Lidia | 0–2 | 0.00% |
| kazama iroha vs Lars | 1–0 | 100.00% |
| kazama iroha vs Lee | 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.