| Kostaqis vs Law | 14–14 | 50.00% |
| Kostaqis vs Hwoarang | 9–11 | 45.00% |
| Kostaqis vs Steve | 12–8 | 60.00% |
| Kostaqis vs Jin | 7–7 | 50.00% |
| Kostaqis vs Armor King | 10–4 | 71.43% |
| Kostaqis vs Yoshimitsu | 4–8 | 33.33% |
| Kostaqis vs Kazuya | 5–7 | 41.67% |
| Kostaqis vs Victor | 4–6 | 40.00% |
| Kostaqis vs Miary Zo | 6–4 | 60.00% |
| Kostaqis vs Paul | 5–3 | 62.50% |
| Kostaqis vs King | 7–1 | 87.50% |
| Kostaqis vs Clive | 3–5 | 37.50% |
| Kostaqis vs Devil Jin | 5–2 | 71.43% |
| Kostaqis vs Fahkumram | 5–1 | 83.33% |
| Kostaqis vs Asuka | 3–2 | 60.00% |
| Kostaqis vs Alisa | 3–2 | 60.00% |
| Kostaqis vs Reina | 2–3 | 40.00% |
| Kostaqis vs Jack-8 | 2–2 | 50.00% |
| Kostaqis vs Lili | 3–1 | 75.00% |
| Kostaqis vs Eddy | 4–0 | 100.00% |
| Kostaqis vs Bryan | 1–2 | 33.33% |
| Kostaqis vs Dragunov | 2–1 | 66.67% |
| Kostaqis vs Claudio | 1–2 | 33.33% |
| Kostaqis vs Jun | 2–1 | 66.67% |
| Kostaqis vs Heihachi | 1–2 | 33.33% |
| Kostaqis vs Xiaoyu | 2–0 | 100.00% |
| Kostaqis vs Nina | 2–0 | 100.00% |
| Kostaqis vs Kuma | 0–2 | 0.00% |
| Kostaqis vs Azucena | 1–1 | 50.00% |
| Kostaqis vs Lidia | 2–0 | 100.00% |
| Kostaqis vs Anna | 2–0 | 100.00% |
| Kostaqis vs Lars | 0–1 | 0.00% |
| Kostaqis vs Leroy | 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.