| issac vs Reina | 14–25 | 35.90% |
| issac vs Kazuya | 12–16 | 42.86% |
| issac vs King | 4–22 | 15.38% |
| issac vs Law | 9–16 | 36.00% |
| issac vs Dragunov | 5–20 | 20.00% |
| issac vs Heihachi | 8–16 | 33.33% |
| issac vs Steve | 6–17 | 26.09% |
| issac vs Paul | 5–16 | 23.81% |
| issac vs Hwoarang | 3–16 | 15.79% |
| issac vs Lee | 3–16 | 15.79% |
| issac vs Yoshimitsu | 1–17 | 5.56% |
| issac vs Jin | 4–14 | 22.22% |
| issac vs Devil Jin | 6–10 | 37.50% |
| issac vs Jun | 2–14 | 12.50% |
| issac vs Victor | 0–16 | 0.00% |
| issac vs Lidia | 6–9 | 40.00% |
| issac vs Fahkumram | 1–14 | 6.67% |
| issac vs Bryan | 1–13 | 7.14% |
| issac vs Nina | 4–10 | 28.57% |
| issac vs Xiaoyu | 3–9 | 25.00% |
| issac vs Lili | 5–7 | 41.67% |
| issac vs Alisa | 3–9 | 25.00% |
| issac vs Azucena | 4–8 | 33.33% |
| issac vs Feng | 0–10 | 0.00% |
| issac vs Asuka | 1–8 | 11.11% |
| issac vs Claudio | 0–9 | 0.00% |
| issac vs Panda | 0–6 | 0.00% |
| issac vs Anna | 2–4 | 33.33% |
| issac vs Leroy | 0–5 | 0.00% |
| issac vs Clive | 3–2 | 60.00% |
| issac vs Lars | 0–3 | 0.00% |
| issac vs Shaheen | 0–3 | 0.00% |
| issac vs Kuma | 1–2 | 33.33% |
| issac vs Raven | 1–2 | 33.33% |
| issac vs Jack-8 | 0–2 | 0.00% |
| issac vs Eddy | 2–0 | 100.00% |
| issac vs Leo | 0–1 | 0.00% |
| issac vs Zafina | 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.