| MouthBreather vs King | 6–7 | 46.15% |
| MouthBreather vs Jin | 4–5 | 44.44% |
| MouthBreather vs Azucena | 7–2 | 77.78% |
| MouthBreather vs Steve | 5–3 | 62.50% |
| MouthBreather vs Hwoarang | 3–4 | 42.86% |
| MouthBreather vs Law | 3–3 | 50.00% |
| MouthBreather vs Dragunov | 5–1 | 83.33% |
| MouthBreather vs Jun | 3–3 | 50.00% |
| MouthBreather vs Lili | 3–2 | 60.00% |
| MouthBreather vs Leo | 2–3 | 40.00% |
| MouthBreather vs Lidia | 3–2 | 60.00% |
| MouthBreather vs Asuka | 0–4 | 0.00% |
| MouthBreather vs Yoshimitsu | 2–1 | 66.67% |
| MouthBreather vs Kazuya | 0–3 | 0.00% |
| MouthBreather vs Lars | 2–1 | 66.67% |
| MouthBreather vs Reina | 2–1 | 66.67% |
| MouthBreather vs Eddy | 1–2 | 33.33% |
| MouthBreather vs Devil Jin | 2–0 | 100.00% |
| MouthBreather vs Heihachi | 0–2 | 0.00% |
| MouthBreather vs Armor King | 2–0 | 100.00% |
| MouthBreather vs Bryan | 0–1 | 0.00% |
| MouthBreather vs Leroy | 1–0 | 100.00% |
| MouthBreather vs Victor | 0–1 | 0.00% |
| MouthBreather vs Raven | 0–1 | 0.00% |
| MouthBreather vs Anna | 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.