| Happa vs Dragunov | 39–20 | 66.10% |
| Happa vs King | 34–19 | 64.15% |
| Happa vs Eddy | 21–20 | 51.22% |
| Happa vs Lili | 29–11 | 72.50% |
| Happa vs Yoshimitsu | 21–16 | 56.76% |
| Happa vs Jin | 20–13 | 60.61% |
| Happa vs Victor | 18–13 | 58.06% |
| Happa vs Law | 19–8 | 70.37% |
| Happa vs Asuka | 12–14 | 46.15% |
| Happa vs Lee | 18–8 | 69.23% |
| Happa vs Reina | 15–11 | 57.69% |
| Happa vs Steve | 10–14 | 41.67% |
| Happa vs Devil Jin | 11–13 | 45.83% |
| Happa vs Hwoarang | 9–14 | 39.13% |
| Happa vs Xiaoyu | 11–12 | 47.83% |
| Happa vs Bryan | 12–10 | 54.55% |
| Happa vs Kazuya | 10–11 | 47.62% |
| Happa vs Jack-8 | 10–11 | 47.62% |
| Happa vs Feng | 9–12 | 42.86% |
| Happa vs Lars | 12–9 | 57.14% |
| Happa vs Alisa | 11–9 | 55.00% |
| Happa vs Paul | 13–6 | 68.42% |
| Happa vs Azucena | 9–9 | 50.00% |
| Happa vs Leo | 8–9 | 47.06% |
| Happa vs Zafina | 8–9 | 47.06% |
| Happa vs Claudio | 6–8 | 42.86% |
| Happa vs Nina | 9–5 | 64.29% |
| Happa vs Raven | 8–3 | 72.73% |
| Happa vs Leroy | 4–5 | 44.44% |
| Happa vs Jun | 5–4 | 55.56% |
| Happa vs Shaheen | 4–4 | 50.00% |
| Happa vs Panda | 3–4 | 42.86% |
| Happa vs Lidia | 4–1 | 80.00% |
| Happa vs Kuma | 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.