| Happyjim vs Kazuya | 83–70 | 54.25% |
| Happyjim vs Law | 56–62 | 47.46% |
| Happyjim vs Jin | 50–61 | 45.05% |
| Happyjim vs Bryan | 47–57 | 45.19% |
| Happyjim vs King | 55–46 | 54.46% |
| Happyjim vs Steve | 45–45 | 50.00% |
| Happyjim vs Heihachi | 39–43 | 47.56% |
| Happyjim vs Hwoarang | 31–47 | 39.74% |
| Happyjim vs Lili | 48–29 | 62.34% |
| Happyjim vs Anna | 40–30 | 57.14% |
| Happyjim vs Dragunov | 34–31 | 52.31% |
| Happyjim vs Lee | 26–32 | 44.83% |
| Happyjim vs Paul | 21–33 | 38.89% |
| Happyjim vs Yoshimitsu | 26–21 | 55.32% |
| Happyjim vs Reina | 28–19 | 59.57% |
| Happyjim vs Lars | 18–26 | 40.91% |
| Happyjim vs Nina | 29–13 | 69.05% |
| Happyjim vs Asuka | 16–25 | 39.02% |
| Happyjim vs Eddy | 21–19 | 52.50% |
| Happyjim vs Devil Jin | 19–20 | 48.72% |
| Happyjim vs Jun | 21–17 | 55.26% |
| Happyjim vs Azucena | 16–21 | 43.24% |
| Happyjim vs Victor | 14–20 | 41.18% |
| Happyjim vs Alisa | 13–15 | 46.43% |
| Happyjim vs Xiaoyu | 14–11 | 56.00% |
| Happyjim vs Feng | 14–11 | 56.00% |
| Happyjim vs Clive | 11–12 | 47.83% |
| Happyjim vs Claudio | 11–9 | 55.00% |
| Happyjim vs Raven | 9–10 | 47.37% |
| Happyjim vs Jack-8 | 10–8 | 55.56% |
| Happyjim vs Lidia | 9–8 | 52.94% |
| Happyjim vs Leroy | 7–9 | 43.75% |
| Happyjim vs Zafina | 7–7 | 50.00% |
| Happyjim vs Fahkumram | 4–9 | 30.77% |
| Happyjim vs Shaheen | 3–9 | 25.00% |
| Happyjim vs Kuma | 5–5 | 50.00% |
| Happyjim vs Leo | 6–1 | 85.71% |
| Happyjim vs Panda | 2–2 | 50.00% |
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.