| Kountoureiros vs Steve | 12–5 | 70.59% |
| Kountoureiros vs Law | 7–7 | 50.00% |
| Kountoureiros vs Jin | 11–3 | 78.57% |
| Kountoureiros vs Bryan | 4–4 | 50.00% |
| Kountoureiros vs Xiaoyu | 5–2 | 71.43% |
| Kountoureiros vs Azucena | 5–2 | 71.43% |
| Kountoureiros vs Fahkumram | 1–6 | 14.29% |
| Kountoureiros vs Yoshimitsu | 3–2 | 60.00% |
| Kountoureiros vs Hwoarang | 3–2 | 60.00% |
| Kountoureiros vs Leroy | 1–3 | 25.00% |
| Kountoureiros vs Reina | 3–1 | 75.00% |
| Kountoureiros vs Lidia | 4–0 | 100.00% |
| Kountoureiros vs Clive | 0–4 | 0.00% |
| Kountoureiros vs Lili | 2–1 | 66.67% |
| Kountoureiros vs Heihachi | 2–1 | 66.67% |
| Kountoureiros vs Paul | 0–2 | 0.00% |
| Kountoureiros vs King | 0–2 | 0.00% |
| Kountoureiros vs Kazuya | 0–2 | 0.00% |
| Kountoureiros vs Asuka | 0–2 | 0.00% |
| Kountoureiros vs Leo | 2–0 | 100.00% |
| Kountoureiros vs Lars | 2–0 | 100.00% |
| Kountoureiros vs Lee | 2–0 | 100.00% |
| Kountoureiros vs Jun | 2–0 | 100.00% |
| Kountoureiros vs Raven | 0–2 | 0.00% |
| Kountoureiros vs Alisa | 1–0 | 100.00% |
| Kountoureiros vs Claudio | 0–1 | 0.00% |
| Kountoureiros vs Nina | 0–1 | 0.00% |
| Kountoureiros vs Victor | 1–0 | 100.00% |
| Kountoureiros vs Eddy | 1–0 | 100.00% |
| Kountoureiros vs Anna | 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.