| Killjoy vs Hwoarang | 8–5 | 61.54% |
| Killjoy vs Bryan | 4–4 | 50.00% |
| Killjoy vs Steve | 8–0 | 100.00% |
| Killjoy vs King | 5–2 | 71.43% |
| Killjoy vs Leo | 2–3 | 40.00% |
| Killjoy vs Reina | 2–3 | 40.00% |
| Killjoy vs Lars | 3–1 | 75.00% |
| Killjoy vs Zafina | 2–2 | 50.00% |
| Killjoy vs Leroy | 2–2 | 50.00% |
| Killjoy vs Eddy | 1–3 | 25.00% |
| Killjoy vs Jin | 3–0 | 100.00% |
| Killjoy vs Dragunov | 0–3 | 0.00% |
| Killjoy vs Nina | 1–2 | 33.33% |
| Killjoy vs Lee | 1–2 | 33.33% |
| Killjoy vs Azucena | 1–2 | 33.33% |
| Killjoy vs Yoshimitsu | 0–2 | 0.00% |
| Killjoy vs Kazuya | 0–2 | 0.00% |
| Killjoy vs Devil Jin | 0–2 | 0.00% |
| Killjoy vs Claudio | 2–0 | 100.00% |
| Killjoy vs Shaheen | 2–0 | 100.00% |
| Killjoy vs Raven | 0–2 | 0.00% |
| Killjoy vs Lidia | 2–0 | 100.00% |
| Killjoy vs Law | 1–0 | 100.00% |
| Killjoy vs Lili | 1–0 | 100.00% |
| Killjoy vs Kuma | 1–0 | 100.00% |
| Killjoy vs Victor | 0–1 | 0.00% |
| Killjoy vs Heihachi | 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.