| Isaias vs Reina | 7–5 | 58.33% |
| Isaias vs Hwoarang | 2–8 | 20.00% |
| Isaias vs King | 7–0 | 100.00% |
| Isaias vs Lee | 3–4 | 42.86% |
| Isaias vs Clive | 2–4 | 33.33% |
| Isaias vs Jin | 3–2 | 60.00% |
| Isaias vs Fahkumram | 2–3 | 40.00% |
| Isaias vs Jun | 2–2 | 50.00% |
| Isaias vs Steve | 3–0 | 100.00% |
| Isaias vs Dragunov | 3–0 | 100.00% |
| Isaias vs Nina | 1–2 | 33.33% |
| Isaias vs Raven | 1–2 | 33.33% |
| Isaias vs Heihachi | 2–1 | 66.67% |
| Isaias vs Paul | 0–2 | 0.00% |
| Isaias vs Law | 2–0 | 100.00% |
| Isaias vs Kazuya | 0–2 | 0.00% |
| Isaias vs Shaheen | 2–0 | 100.00% |
| Isaias vs Leroy | 2–0 | 100.00% |
| Isaias vs Victor | 1–1 | 50.00% |
| Isaias vs Eddy | 0–2 | 0.00% |
| Isaias vs Miary Zo | 2–0 | 100.00% |
| Isaias vs Bryan | 0–1 | 0.00% |
| Isaias vs Leo | 0–1 | 0.00% |
| Isaias vs Alisa | 0–1 | 0.00% |
| Isaias vs Panda | 1–0 | 100.00% |
| Isaias vs Zafina | 0–1 | 0.00% |
| Isaias vs Armor King | 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.