| Kojtko vs Kazuya | 30–29 | 50.85% |
| Kojtko vs Bryan | 35–19 | 64.81% |
| Kojtko vs Reina | 24–25 | 48.98% |
| Kojtko vs Jin | 19–24 | 44.19% |
| Kojtko vs Heihachi | 18–20 | 47.37% |
| Kojtko vs Lili | 15–22 | 40.54% |
| Kojtko vs King | 18–14 | 56.25% |
| Kojtko vs Hwoarang | 13–15 | 46.43% |
| Kojtko vs Asuka | 15–12 | 55.56% |
| Kojtko vs Yoshimitsu | 11–13 | 45.83% |
| Kojtko vs Xiaoyu | 8–16 | 33.33% |
| Kojtko vs Dragunov | 14–9 | 60.87% |
| Kojtko vs Steve | 11–11 | 50.00% |
| Kojtko vs Lee | 6–16 | 27.27% |
| Kojtko vs Azucena | 9–11 | 45.00% |
| Kojtko vs Paul | 14–5 | 73.68% |
| Kojtko vs Lars | 9–10 | 47.37% |
| Kojtko vs Victor | 11–7 | 61.11% |
| Kojtko vs Lidia | 9–9 | 50.00% |
| Kojtko vs Leroy | 6–11 | 35.29% |
| Kojtko vs Law | 7–8 | 46.67% |
| Kojtko vs Devil Jin | 6–9 | 40.00% |
| Kojtko vs Jun | 9–6 | 60.00% |
| Kojtko vs Alisa | 3–9 | 25.00% |
| Kojtko vs Raven | 6–6 | 50.00% |
| Kojtko vs Leo | 6–5 | 54.55% |
| Kojtko vs Claudio | 3–5 | 37.50% |
| Kojtko vs Nina | 6–2 | 75.00% |
| Kojtko vs Clive | 3–5 | 37.50% |
| Kojtko vs Jack-8 | 2–3 | 40.00% |
| Kojtko vs Feng | 3–2 | 60.00% |
| Kojtko vs Eddy | 1–4 | 20.00% |
| Kojtko vs Kuma | 4–0 | 100.00% |
| Kojtko vs Panda | 2–1 | 66.67% |
| Kojtko vs Zafina | 1–2 | 33.33% |
| Kojtko vs Fahkumram | 0–2 | 0.00% |
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.