| Mellowish vs Reina | 23–15 | 60.53% |
| Mellowish vs King | 5–9 | 35.71% |
| Mellowish vs Steve | 9–4 | 69.23% |
| Mellowish vs Jin | 4–8 | 33.33% |
| Mellowish vs Heihachi | 8–4 | 66.67% |
| Mellowish vs Kazuya | 6–4 | 60.00% |
| Mellowish vs Lili | 6–4 | 60.00% |
| Mellowish vs Lars | 5–5 | 50.00% |
| Mellowish vs Dragunov | 3–6 | 33.33% |
| Mellowish vs Jun | 5–4 | 55.56% |
| Mellowish vs Paul | 2–6 | 25.00% |
| Mellowish vs Law | 5–3 | 62.50% |
| Mellowish vs Asuka | 3–4 | 42.86% |
| Mellowish vs Yoshimitsu | 2–4 | 33.33% |
| Mellowish vs Hwoarang | 2–4 | 33.33% |
| Mellowish vs Bryan | 2–3 | 40.00% |
| Mellowish vs Nina | 3–2 | 60.00% |
| Mellowish vs Lee | 4–1 | 80.00% |
| Mellowish vs Azucena | 2–3 | 40.00% |
| Mellowish vs Lidia | 3–2 | 60.00% |
| Mellowish vs Devil Jin | 2–2 | 50.00% |
| Mellowish vs Alisa | 1–3 | 25.00% |
| Mellowish vs Shaheen | 2–2 | 50.00% |
| Mellowish vs Victor | 1–3 | 25.00% |
| Mellowish vs Xiaoyu | 0–3 | 0.00% |
| Mellowish vs Jack-8 | 0–3 | 0.00% |
| Mellowish vs Feng | 0–3 | 0.00% |
| Mellowish vs Kuma | 0–3 | 0.00% |
| Mellowish vs Eddy | 3–0 | 100.00% |
| Mellowish vs Leo | 0–2 | 0.00% |
| Mellowish vs Zafina | 0–2 | 0.00% |
| Mellowish vs Leroy | 2–0 | 100.00% |
| Mellowish vs Claudio | 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.