| Isaa vs Jin | 10–7 | 58.82% |
| Isaa vs Reina | 10–3 | 76.92% |
| Isaa vs King | 6–4 | 60.00% |
| Isaa vs Kazuya | 5–5 | 50.00% |
| Isaa vs Victor | 6–3 | 66.67% |
| Isaa vs Steve | 5–2 | 71.43% |
| Isaa vs Devil Jin | 6–0 | 100.00% |
| Isaa vs Yoshimitsu | 2–3 | 40.00% |
| Isaa vs Jack-8 | 3–2 | 60.00% |
| Isaa vs Lili | 2–3 | 40.00% |
| Isaa vs Paul | 2–2 | 50.00% |
| Isaa vs Dragunov | 0–4 | 0.00% |
| Isaa vs Lee | 2–2 | 50.00% |
| Isaa vs Hwoarang | 2–1 | 66.67% |
| Isaa vs Asuka | 2–1 | 66.67% |
| Isaa vs Clive | 1–2 | 33.33% |
| Isaa vs Law | 0–2 | 0.00% |
| Isaa vs Bryan | 0–2 | 0.00% |
| Isaa vs Feng | 0–2 | 0.00% |
| Isaa vs Lars | 0–2 | 0.00% |
| Isaa vs Alisa | 2–0 | 100.00% |
| Isaa vs Nina | 0–2 | 0.00% |
| Isaa vs Kuma | 2–0 | 100.00% |
| Isaa vs Zafina | 1–1 | 50.00% |
| Isaa vs Jun | 2–0 | 100.00% |
| Isaa vs Heihachi | 0–2 | 0.00% |
| Isaa vs Armor King | 0–2 | 0.00% |
| Isaa vs Leo | 1–0 | 100.00% |
| Isaa vs Claudio | 0–1 | 0.00% |
| Isaa vs Lidia | 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.