| Kostanit vs Hwoarang | 9–8 | 52.94% |
| Kostanit vs King | 4–9 | 30.77% |
| Kostanit vs Steve | 7–4 | 63.64% |
| Kostanit vs Lili | 6–2 | 75.00% |
| Kostanit vs Eddy | 4–4 | 50.00% |
| Kostanit vs Armor King | 1–4 | 20.00% |
| Kostanit vs Jin | 2–2 | 50.00% |
| Kostanit vs Jack-8 | 2–2 | 50.00% |
| Kostanit vs Devil Jin | 2–2 | 50.00% |
| Kostanit vs Dragunov | 2–2 | 50.00% |
| Kostanit vs Law | 0–3 | 0.00% |
| Kostanit vs Bryan | 0–3 | 0.00% |
| Kostanit vs Reina | 3–0 | 100.00% |
| Kostanit vs Azucena | 1–2 | 33.33% |
| Kostanit vs Anna | 1–2 | 33.33% |
| Kostanit vs Fahkumram | 1–2 | 33.33% |
| Kostanit vs Paul | 0–2 | 0.00% |
| Kostanit vs Yoshimitsu | 0–2 | 0.00% |
| Kostanit vs Xiaoyu | 0–2 | 0.00% |
| Kostanit vs Kazuya | 2–0 | 100.00% |
| Kostanit vs Leo | 0–2 | 0.00% |
| Kostanit vs Nina | 0–2 | 0.00% |
| Kostanit vs Asuka | 0–1 | 0.00% |
| Kostanit vs Alisa | 0–1 | 0.00% |
| Kostanit vs Heihachi | 1–0 | 100.00% |
| Kostanit vs Clive | 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.