| KOJEK vs Heihachi | 14–52 | 21.21% |
| KOJEK vs Bryan | 23–34 | 40.35% |
| KOJEK vs Dragunov | 19–35 | 35.19% |
| KOJEK vs King | 16–36 | 30.77% |
| KOJEK vs Jin | 19–30 | 38.78% |
| KOJEK vs Kazuya | 14–31 | 31.11% |
| KOJEK vs Steve | 16–29 | 35.56% |
| KOJEK vs Reina | 18–27 | 40.00% |
| KOJEK vs Yoshimitsu | 15–22 | 40.54% |
| KOJEK vs Jun | 12–19 | 38.71% |
| KOJEK vs Law | 13–17 | 43.33% |
| KOJEK vs Victor | 12–17 | 41.38% |
| KOJEK vs Hwoarang | 11–17 | 39.29% |
| KOJEK vs Paul | 9–18 | 33.33% |
| KOJEK vs Nina | 9–17 | 34.62% |
| KOJEK vs Devil Jin | 10–15 | 40.00% |
| KOJEK vs Lili | 5–18 | 21.74% |
| KOJEK vs Lars | 11–11 | 50.00% |
| KOJEK vs Alisa | 6–13–1 | 31.58% |
| KOJEK vs Lidia | 5–11 | 31.25% |
| KOJEK vs Kuma | 3–12 | 20.00% |
| KOJEK vs Azucena | 8–6 | 57.14% |
| KOJEK vs Eddy | 5–8 | 38.46% |
| KOJEK vs Feng | 5–7 | 41.67% |
| KOJEK vs Asuka | 1–10 | 9.09% |
| KOJEK vs Claudio | 3–7 | 30.00% |
| KOJEK vs Shaheen | 5–4 | 55.56% |
| KOJEK vs Lee | 0–7 | 0.00% |
| KOJEK vs Anna | 2–5 | 28.57% |
| KOJEK vs Leo | 3–3 | 50.00% |
| KOJEK vs Xiaoyu | 2–3 | 40.00% |
| KOJEK vs Panda | 1–2 | 33.33% |
| KOJEK vs Zafina | 1–2 | 33.33% |
| KOJEK vs Leroy | 3–0 | 100.00% |
| KOJEK vs Fahkumram | 0–2 | 0.00% |
| KOJEK vs Clive | 0–1 | 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.