| Happy cat vs Fahkumram | 20–28 | 41.67% |
| Happy cat vs Bryan | 15–22 | 40.54% |
| Happy cat vs Kazuya | 15–22 | 40.54% |
| Happy cat vs Paul | 15–12 | 55.56% |
| Happy cat vs Jin | 11–14 | 44.00% |
| Happy cat vs King | 10–14 | 41.67% |
| Happy cat vs Steve | 16–7 | 69.57% |
| Happy cat vs Dragunov | 13–7 | 65.00% |
| Happy cat vs Hwoarang | 10–7 | 58.82% |
| Happy cat vs Heihachi | 10–6 | 62.50% |
| Happy cat vs Victor | 10–4 | 71.43% |
| Happy cat vs Xiaoyu | 4–9 | 30.77% |
| Happy cat vs Azucena | 8–5 | 61.54% |
| Happy cat vs Armor King | 7–5 | 58.33% |
| Happy cat vs Lars | 6–5 | 54.55% |
| Happy cat vs Eddy | 5–6 | 45.45% |
| Happy cat vs Lili | 2–8 | 20.00% |
| Happy cat vs Leroy | 3–6 | 33.33% |
| Happy cat vs Reina | 1–8 | 11.11% |
| Happy cat vs Devil Jin | 5–3 | 62.50% |
| Happy cat vs Shaheen | 5–3 | 62.50% |
| Happy cat vs Law | 3–4 | 42.86% |
| Happy cat vs Yoshimitsu | 4–3 | 57.14% |
| Happy cat vs Jack-8 | 2–5 | 28.57% |
| Happy cat vs Anna | 4–3 | 57.14% |
| Happy cat vs Lidia | 0–6 | 0.00% |
| Happy cat vs Clive | 4–2 | 66.67% |
| Happy cat vs Asuka | 2–2 | 50.00% |
| Happy cat vs Lee | 1–3 | 25.00% |
| Happy cat vs Kuma | 2–2 | 50.00% |
| Happy cat vs Leo | 2–1 | 66.67% |
| Happy cat vs Claudio | 1–2 | 33.33% |
| Happy cat vs Feng | 0–2 | 0.00% |
| Happy cat vs Alisa | 2–0 | 100.00% |
| Happy cat vs Nina | 1–1 | 50.00% |
| Happy cat vs Zafina | 0–2 | 0.00% |
| Happy cat vs Jun | 1–1 | 50.00% |
| Happy cat vs Raven | 0–2 | 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.