| Buttercup 777 vs King | 4–2 | 66.67% |
| Buttercup 777 vs Jin | 4–2 | 66.67% |
| Buttercup 777 vs Claudio | 2–4 | 33.33% |
| Buttercup 777 vs Asuka | 3–2 | 60.00% |
| Buttercup 777 vs Steve | 2–2 | 50.00% |
| Buttercup 777 vs Reina | 4–0 | 100.00% |
| Buttercup 777 vs Law | 1–2 | 33.33% |
| Buttercup 777 vs Yoshimitsu | 2–0 | 100.00% |
| Buttercup 777 vs Hwoarang | 2–0 | 100.00% |
| Buttercup 777 vs Feng | 2–0 | 100.00% |
| Buttercup 777 vs Nina | 0–2 | 0.00% |
| Buttercup 777 vs Lee | 2–0 | 100.00% |
| Buttercup 777 vs Jun | 0–2 | 0.00% |
| Buttercup 777 vs Heihachi | 0–2 | 0.00% |
| Buttercup 777 vs Devil Jin | 1–0 | 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.