| Isshin Ashina vs Miary Zo | 23–16 | 58.97% |
| Isshin Ashina vs Armor King | 11–13 | 45.83% |
| Isshin Ashina vs Hwoarang | 9–11 | 45.00% |
| Isshin Ashina vs Steve | 15–5 | 75.00% |
| Isshin Ashina vs Bryan | 6–13 | 31.58% |
| Isshin Ashina vs Yoshimitsu | 13–5 | 72.22% |
| Isshin Ashina vs Kazuya | 9–9 | 50.00% |
| Isshin Ashina vs Lars | 8–10 | 44.44% |
| Isshin Ashina vs Law | 4–11 | 26.67% |
| Isshin Ashina vs Fahkumram | 4–11 | 26.67% |
| Isshin Ashina vs Victor | 6–8 | 42.86% |
| Isshin Ashina vs Reina | 7–6 | 53.85% |
| Isshin Ashina vs King | 7–5 | 58.33% |
| Isshin Ashina vs Jin | 7–5 | 58.33% |
| Isshin Ashina vs Lidia | 7–4 | 63.64% |
| Isshin Ashina vs Asuka | 7–3 | 70.00% |
| Isshin Ashina vs Kuma | 3–7 | 30.00% |
| Isshin Ashina vs Lili | 4–5 | 44.44% |
| Isshin Ashina vs Leo | 5–4 | 55.56% |
| Isshin Ashina vs Azucena | 7–2 | 77.78% |
| Isshin Ashina vs Heihachi | 4–5 | 44.44% |
| Isshin Ashina vs Devil Jin | 7–1 | 87.50% |
| Isshin Ashina vs Jun | 5–3 | 62.50% |
| Isshin Ashina vs Anna | 5–3 | 62.50% |
| Isshin Ashina vs Xiaoyu | 4–3 | 57.14% |
| Isshin Ashina vs Dragunov | 3–4 | 42.86% |
| Isshin Ashina vs Nina | 3–4 | 42.86% |
| Isshin Ashina vs Lee | 5–1 | 83.33% |
| Isshin Ashina vs Eddy | 2–4 | 33.33% |
| Isshin Ashina vs Paul | 0–5 | 0.00% |
| Isshin Ashina vs Jack-8 | 2–3 | 40.00% |
| Isshin Ashina vs Zafina | 2–3 | 40.00% |
| Isshin Ashina vs Alisa | 2–1 | 66.67% |
| Isshin Ashina vs Leroy | 1–2 | 33.33% |
| Isshin Ashina vs Clive | 1–1 | 50.00% |
| Isshin Ashina vs Raven | 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.