| ItzKiller vs King | 12–13 | 48.00% |
| ItzKiller vs Kazuya | 14–10 | 58.33% |
| ItzKiller vs Jin | 11–12 | 47.83% |
| ItzKiller vs Steve | 8–14 | 36.36% |
| ItzKiller vs Hwoarang | 10–8 | 55.56% |
| ItzKiller vs Bryan | 12–6 | 66.67% |
| ItzKiller vs Lili | 7–8 | 46.67% |
| ItzKiller vs Lars | 7–5 | 58.33% |
| ItzKiller vs Azucena | 9–3 | 75.00% |
| ItzKiller vs Yoshimitsu | 7–4 | 63.64% |
| ItzKiller vs Reina | 6–4 | 60.00% |
| ItzKiller vs Law | 6–3 | 66.67% |
| ItzKiller vs Dragunov | 2–7 | 22.22% |
| ItzKiller vs Claudio | 4–3 | 57.14% |
| ItzKiller vs Lee | 4–3 | 57.14% |
| ItzKiller vs Jun | 3–4 | 42.86% |
| ItzKiller vs Asuka | 2–4 | 33.33% |
| ItzKiller vs Heihachi | 3–3 | 50.00% |
| ItzKiller vs Clive | 2–4 | 33.33% |
| ItzKiller vs Paul | 0–5 | 0.00% |
| ItzKiller vs Alisa | 0–5 | 0.00% |
| ItzKiller vs Leroy | 1–4 | 20.00% |
| ItzKiller vs Raven | 3–2 | 60.00% |
| ItzKiller vs Leo | 3–1 | 75.00% |
| ItzKiller vs Victor | 2–2 | 50.00% |
| ItzKiller vs Xiaoyu | 1–2 | 33.33% |
| ItzKiller vs Nina | 2–1 | 66.67% |
| ItzKiller vs Devil Jin | 0–2 | 0.00% |
| ItzKiller vs Zafina | 2–0 | 100.00% |
| ItzKiller vs Lidia | 2–0 | 100.00% |
| ItzKiller vs Jack-8 | 0–1 | 0.00% |
| ItzKiller vs Feng | 1–0 | 100.00% |
| ItzKiller vs Shaheen | 1–0 | 100.00% |
| ItzKiller vs Kuma | 0–1 | 0.00% |
| ItzKiller vs Panda | 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.