| HappyHappyJoy vs Reina | 9–6 | 60.00% |
| HappyHappyJoy vs Jin | 2–9 | 18.18% |
| HappyHappyJoy vs Hwoarang | 3–6 | 33.33% |
| HappyHappyJoy vs Law | 5–3 | 62.50% |
| HappyHappyJoy vs Yoshimitsu | 4–4 | 50.00% |
| HappyHappyJoy vs Asuka | 2–5 | 28.57% |
| HappyHappyJoy vs Lee | 2–5 | 28.57% |
| HappyHappyJoy vs King | 2–4 | 33.33% |
| HappyHappyJoy vs Steve | 3–2 | 60.00% |
| HappyHappyJoy vs Devil Jin | 2–3 | 40.00% |
| HappyHappyJoy vs Alisa | 3–2 | 60.00% |
| HappyHappyJoy vs Zafina | 2–3 | 40.00% |
| HappyHappyJoy vs Leroy | 0–5 | 0.00% |
| HappyHappyJoy vs Kazuya | 2–2 | 50.00% |
| HappyHappyJoy vs Paul | 2–1 | 66.67% |
| HappyHappyJoy vs Panda | 1–2 | 33.33% |
| HappyHappyJoy vs Jun | 1–2 | 33.33% |
| HappyHappyJoy vs Azucena | 1–2 | 33.33% |
| HappyHappyJoy vs Xiaoyu | 0–2 | 0.00% |
| HappyHappyJoy vs Bryan | 0–2 | 0.00% |
| HappyHappyJoy vs Feng | 2–0 | 100.00% |
| HappyHappyJoy vs Lili | 0–2 | 0.00% |
| HappyHappyJoy vs Dragunov | 0–2 | 0.00% |
| HappyHappyJoy vs Lars | 2–0 | 100.00% |
| HappyHappyJoy vs Shaheen | 2–0 | 100.00% |
| HappyHappyJoy vs Raven | 2–0 | 100.00% |
| HappyHappyJoy vs Kuma | 1–0 | 100.00% |
| HappyHappyJoy vs Eddy | 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.