| Happyking21 vs Hwoarang | 226–196 | 53.55% |
| Happyking21 vs Bryan | 150–126 | 54.35% |
| Happyking21 vs Kazuya | 118–151 | 43.87% |
| Happyking21 vs Paul | 138–126 | 52.27% |
| Happyking21 vs King | 118–145 | 44.87% |
| Happyking21 vs Reina | 128–123 | 51.00% |
| Happyking21 vs Steve | 124–99 | 55.61% |
| Happyking21 vs Jin | 100–120 | 45.45% |
| Happyking21 vs Dragunov | 90–123 | 42.25% |
| Happyking21 vs Asuka | 94–93 | 50.27% |
| Happyking21 vs Yoshimitsu | 83–98 | 45.86% |
| Happyking21 vs Lars | 67–88 | 43.23% |
| Happyking21 vs Lili | 70–82 | 46.05% |
| Happyking21 vs Nina | 76–68 | 52.78% |
| Happyking21 vs Law | 66–76–1 | 46.48% |
| Happyking21 vs Heihachi | 67–63 | 51.54% |
| Happyking21 vs Azucena | 61–67 | 47.66% |
| Happyking21 vs Anna | 62–65 | 48.82% |
| Happyking21 vs Devil Jin | 39–74 | 34.51% |
| Happyking21 vs Victor | 37–76 | 32.74% |
| Happyking21 vs Jun | 59–52 | 53.15% |
| Happyking21 vs Xiaoyu | 52–56 | 48.15% |
| Happyking21 vs Leo | 47–59 | 44.34% |
| Happyking21 vs Claudio | 43–62 | 40.95% |
| Happyking21 vs Lee | 53–51 | 50.96% |
| Happyking21 vs Eddy | 48–56 | 46.15% |
| Happyking21 vs Jack-8 | 45–53 | 45.92% |
| Happyking21 vs Feng | 52–46 | 53.06% |
| Happyking21 vs Leroy | 39–55 | 41.49% |
| Happyking21 vs Alisa | 30–54 | 35.71% |
| Happyking21 vs Lidia | 40–39 | 50.63% |
| Happyking21 vs Raven | 27–34 | 44.26% |
| Happyking21 vs Shaheen | 34–26 | 56.67% |
| Happyking21 vs Kuma | 32–27 | 54.24% |
| Happyking21 vs Fahkumram | 23–33 | 41.07% |
| Happyking21 vs Zafina | 32–21 | 60.38% |
| Happyking21 vs Clive | 21–22 | 48.84% |
| Happyking21 vs Panda | 11–16 | 40.74% |
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.