| Mainess vs Jin | 30–42 | 41.67% |
| Mainess vs King | 23–26 | 46.94% |
| Mainess vs Kazuya | 15–33 | 31.25% |
| Mainess vs Dragunov | 23–24 | 48.94% |
| Mainess vs Reina | 23–23 | 50.00% |
| Mainess vs Bryan | 11–23 | 32.35% |
| Mainess vs Lili | 12–19 | 38.71% |
| Mainess vs Law | 13–16 | 44.83% |
| Mainess vs Yoshimitsu | 13–16 | 44.83% |
| Mainess vs Steve | 13–16 | 44.83% |
| Mainess vs Jun | 12–17 | 41.38% |
| Mainess vs Alisa | 6–13 | 31.58% |
| Mainess vs Lars | 10–8 | 55.56% |
| Mainess vs Asuka | 7–7 | 50.00% |
| Mainess vs Xiaoyu | 8–5 | 61.54% |
| Mainess vs Devil Jin | 7–6 | 53.85% |
| Mainess vs Hwoarang | 7–5 | 58.33% |
| Mainess vs Nina | 4–8 | 33.33% |
| Mainess vs Azucena | 3–8 | 27.27% |
| Mainess vs Paul | 6–4 | 60.00% |
| Mainess vs Feng | 5–5 | 50.00% |
| Mainess vs Kuma | 6–4 | 60.00% |
| Mainess vs Victor | 2–8 | 20.00% |
| Mainess vs Leroy | 4–5 | 44.44% |
| Mainess vs Eddy | 5–4 | 55.56% |
| Mainess vs Leo | 6–2 | 75.00% |
| Mainess vs Lee | 2–6 | 25.00% |
| Mainess vs Claudio | 0–7 | 0.00% |
| Mainess vs Zafina | 4–3 | 57.14% |
| Mainess vs Jack-8 | 0–6 | 0.00% |
| Mainess vs Lidia | 2–4 | 33.33% |
| Mainess vs Raven | 1–3 | 25.00% |
| Mainess vs Shaheen | 2–0 | 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.