| IS4D4U vs Reina | 7–2 | 77.78% |
| IS4D4U vs Bryan | 3–3 | 50.00% |
| IS4D4U vs Dragunov | 4–1 | 80.00% |
| IS4D4U vs Lili | 2–2 | 50.00% |
| IS4D4U vs Victor | 1–3 | 25.00% |
| IS4D4U vs King | 3–0 | 100.00% |
| IS4D4U vs Raven | 1–2 | 33.33% |
| IS4D4U vs Law | 0–2 | 0.00% |
| IS4D4U vs Xiaoyu | 0–2 | 0.00% |
| IS4D4U vs Lars | 2–0 | 100.00% |
| IS4D4U vs Shaheen | 1–1 | 50.00% |
| IS4D4U vs Jun | 0–2 | 0.00% |
| IS4D4U vs Heihachi | 0–2 | 0.00% |
| IS4D4U vs Clive | 1–1 | 50.00% |
| IS4D4U vs Yoshimitsu | 1–0 | 100.00% |
| IS4D4U vs Alisa | 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.