| KingKoopa vs Jin | 9–10 | 47.37% |
| KingKoopa vs Lili | 9–9 | 50.00% |
| KingKoopa vs Steve | 9–7 | 56.25% |
| KingKoopa vs Law | 6–7 | 46.15% |
| KingKoopa vs Lars | 6–7 | 46.15% |
| KingKoopa vs Hwoarang | 6–6 | 50.00% |
| KingKoopa vs Reina | 4–5 | 44.44% |
| KingKoopa vs Yoshimitsu | 4–2 | 66.67% |
| KingKoopa vs Bryan | 2–3 | 40.00% |
| KingKoopa vs Kazuya | 1–4 | 20.00% |
| KingKoopa vs Asuka | 4–1 | 80.00% |
| KingKoopa vs Devil Jin | 1–4 | 20.00% |
| KingKoopa vs Victor | 4–1 | 80.00% |
| KingKoopa vs Lidia | 5–0 | 100.00% |
| KingKoopa vs Paul | 1–3 | 25.00% |
| KingKoopa vs Xiaoyu | 2–2 | 50.00% |
| KingKoopa vs Dragunov | 1–3 | 25.00% |
| KingKoopa vs Alisa | 1–3 | 25.00% |
| KingKoopa vs Leroy | 3–1 | 75.00% |
| KingKoopa vs Eddy | 1–3 | 25.00% |
| KingKoopa vs King | 2–1 | 66.67% |
| KingKoopa vs Feng | 1–2 | 33.33% |
| KingKoopa vs Jun | 1–2 | 33.33% |
| KingKoopa vs Heihachi | 1–2 | 33.33% |
| KingKoopa vs Jack-8 | 0–2 | 0.00% |
| KingKoopa vs Claudio | 0–2 | 0.00% |
| KingKoopa vs Nina | 1–1 | 50.00% |
| KingKoopa vs Lee | 2–0 | 100.00% |
| KingKoopa vs Kuma | 2–0 | 100.00% |
| KingKoopa vs Azucena | 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.