| Isahn vs Nina | 2–5 | 28.57% |
| Isahn vs Lee | 6–1 | 85.71% |
| Isahn vs King | 2–4 | 33.33% |
| Isahn vs Kazuya | 2–3 | 40.00% |
| Isahn vs Steve | 0–5 | 0.00% |
| Isahn vs Lili | 1–4 | 20.00% |
| Isahn vs Reina | 4–1 | 80.00% |
| Isahn vs Yoshimitsu | 4–0 | 100.00% |
| Isahn vs Jin | 0–4 | 0.00% |
| Isahn vs Jack-8 | 2–2 | 50.00% |
| Isahn vs Eddy | 0–4 | 0.00% |
| Isahn vs Heihachi | 2–2 | 50.00% |
| Isahn vs Dragunov | 2–1 | 66.67% |
| Isahn vs Claudio | 2–1 | 66.67% |
| Isahn vs Victor | 1–2 | 33.33% |
| Isahn vs Paul | 0–2 | 0.00% |
| Isahn vs Law | 0–2 | 0.00% |
| Isahn vs Hwoarang | 0–2 | 0.00% |
| Isahn vs Xiaoyu | 2–0 | 100.00% |
| Isahn vs Bryan | 0–2 | 0.00% |
| Isahn vs Asuka | 0–2 | 0.00% |
| Isahn vs Jun | 0–2 | 0.00% |
| Isahn vs Azucena | 0–2 | 0.00% |
| Isahn vs Clive | 0–2 | 0.00% |
| Isahn vs Anna | 0–2 | 0.00% |
| Isahn vs Fahkumram | 0–2 | 0.00% |
| Isahn vs Lars | 0–1 | 0.00% |
| Isahn vs Leroy | 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.