| IsaacX vs Jin | 18–4 | 81.82% |
| IsaacX vs Steve | 15–6 | 71.43% |
| IsaacX vs Law | 12–8 | 60.00% |
| IsaacX vs King | 11–4 | 73.33% |
| IsaacX vs Devil Jin | 8–4 | 66.67% |
| IsaacX vs Raven | 7–4 | 63.64% |
| IsaacX vs Kazuya | 5–5 | 50.00% |
| IsaacX vs Bryan | 2–7 | 22.22% |
| IsaacX vs Hwoarang | 4–4 | 50.00% |
| IsaacX vs Lili | 5–3 | 62.50% |
| IsaacX vs Heihachi | 4–4 | 50.00% |
| IsaacX vs Fahkumram | 6–1 | 85.71% |
| IsaacX vs Miary Zo | 7–0 | 100.00% |
| IsaacX vs Feng | 3–3 | 50.00% |
| IsaacX vs Lars | 4–2 | 66.67% |
| IsaacX vs Eddy | 3–3 | 50.00% |
| IsaacX vs Paul | 2–3 | 40.00% |
| IsaacX vs Asuka | 1–4 | 20.00% |
| IsaacX vs Nina | 1–4 | 20.00% |
| IsaacX vs Azucena | 3–2 | 60.00% |
| IsaacX vs Lidia | 1–4 | 20.00% |
| IsaacX vs Lee | 1–3 | 25.00% |
| IsaacX vs Leroy | 4–0 | 100.00% |
| IsaacX vs Anna | 2–2 | 50.00% |
| IsaacX vs Armor King | 1–3 | 25.00% |
| IsaacX vs Reina | 2–1 | 66.67% |
| IsaacX vs Victor | 1–2 | 33.33% |
| IsaacX vs Clive | 1–2 | 33.33% |
| IsaacX vs Yoshimitsu | 2–0 | 100.00% |
| IsaacX vs Xiaoyu | 0–2 | 0.00% |
| IsaacX vs Dragunov | 1–1 | 50.00% |
| IsaacX vs Alisa | 2–0 | 100.00% |
| IsaacX vs Jack-8 | 0–1 | 0.00% |
| IsaacX vs Leo | 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.