| Isaia vs Jin | 7–10 | 41.18% |
| Isaia vs King | 8–8 | 50.00% |
| Isaia vs Hwoarang | 6–9 | 40.00% |
| Isaia vs Miary Zo | 9–4 | 69.23% |
| Isaia vs Lili | 8–4 | 66.67% |
| Isaia vs Bryan | 4–6 | 40.00% |
| Isaia vs Armor King | 1–9 | 10.00% |
| Isaia vs Kazuya | 2–6 | 25.00% |
| Isaia vs Steve | 6–2 | 75.00% |
| Isaia vs Nina | 6–1 | 85.71% |
| Isaia vs Law | 0–6 | 0.00% |
| Isaia vs Reina | 5–1 | 83.33% |
| Isaia vs Xiaoyu | 2–2 | 50.00% |
| Isaia vs Dragunov | 3–1 | 75.00% |
| Isaia vs Anna | 4–0 | 100.00% |
| Isaia vs Asuka | 1–2 | 33.33% |
| Isaia vs Alisa | 2–1 | 66.67% |
| Isaia vs Yoshimitsu | 2–0 | 100.00% |
| Isaia vs Devil Jin | 2–0 | 100.00% |
| Isaia vs Feng | 0–2 | 0.00% |
| Isaia vs Leo | 2–0 | 100.00% |
| Isaia vs Lee | 0–2 | 0.00% |
| Isaia vs Jun | 2–0 | 100.00% |
| Isaia vs Heihachi | 2–0 | 100.00% |
| Isaia vs Paul | 1–0 | 100.00% |
| Isaia vs Claudio | 0–1 | 0.00% |
| Isaia vs Eddy | 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.