| Mainatsume vs Kazuya | 4–8 | 33.33% |
| Mainatsume vs Victor | 2–6 | 25.00% |
| Mainatsume vs Eddy | 4–4 | 50.00% |
| Mainatsume vs Yoshimitsu | 3–4 | 42.86% |
| Mainatsume vs Jun | 4–3 | 57.14% |
| Mainatsume vs Azucena | 4–3 | 57.14% |
| Mainatsume vs Steve | 4–2 | 66.67% |
| Mainatsume vs Paul | 1–4 | 20.00% |
| Mainatsume vs Law | 2–2 | 50.00% |
| Mainatsume vs Feng | 2–2 | 50.00% |
| Mainatsume vs Dragunov | 0–4 | 0.00% |
| Mainatsume vs Jin | 1–2 | 33.33% |
| Mainatsume vs Bryan | 2–1 | 66.67% |
| Mainatsume vs Asuka | 2–1 | 66.67% |
| Mainatsume vs Raven | 1–2 | 33.33% |
| Mainatsume vs King | 0–2 | 0.00% |
| Mainatsume vs Hwoarang | 0–2 | 0.00% |
| Mainatsume vs Devil Jin | 0–2 | 0.00% |
| Mainatsume vs Lili | 0–2 | 0.00% |
| Mainatsume vs Alisa | 2–0 | 100.00% |
| Mainatsume vs Claudio | 0–2 | 0.00% |
| Mainatsume vs Nina | 1–1 | 50.00% |
| Mainatsume vs Jack-8 | 0–1 | 0.00% |
| Mainatsume vs Lars | 0–1 | 0.00% |
| Mainatsume vs Kuma | 1–0 | 100.00% |
| Mainatsume vs Zafina | 1–0 | 100.00% |
| Mainatsume vs Reina | 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.