| I Killz Um vs Victor | 3–5 | 37.50% |
| I Killz Um vs Yoshimitsu | 2–5 | 28.57% |
| I Killz Um vs Steve | 3–4 | 42.86% |
| I Killz Um vs Law | 3–3 | 50.00% |
| I Killz Um vs Jin | 1–5 | 16.67% |
| I Killz Um vs Lili | 2–4 | 33.33% |
| I Killz Um vs Reina | 3–3 | 50.00% |
| I Killz Um vs Clive | 2–3 | 40.00% |
| I Killz Um vs Hwoarang | 0–3 | 0.00% |
| I Killz Um vs Xiaoyu | 1–2 | 33.33% |
| I Killz Um vs Alisa | 1–2 | 33.33% |
| I Killz Um vs Lidia | 1–2 | 33.33% |
| I Killz Um vs Heihachi | 1–2 | 33.33% |
| I Killz Um vs Kazuya | 0–2 | 0.00% |
| I Killz Um vs Lars | 0–1 | 0.00% |
| I Killz Um vs Nina | 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.