| Ishin vs King | 33–35 | 48.53% |
| Ishin vs Steve | 27–23 | 54.00% |
| Ishin vs Dragunov | 11–23 | 32.35% |
| Ishin vs Jin | 14–14 | 50.00% |
| Ishin vs Azucena | 14–14 | 50.00% |
| Ishin vs Eddy | 8–19 | 29.63% |
| Ishin vs Law | 4–12 | 25.00% |
| Ishin vs Lars | 8–8 | 50.00% |
| Ishin vs Miary Zo | 7–9 | 43.75% |
| Ishin vs Kazuya | 8–7 | 53.33% |
| Ishin vs Lili | 4–10 | 28.57% |
| Ishin vs Hwoarang | 7–6 | 53.85% |
| Ishin vs Kuma | 5–7 | 41.67% |
| Ishin vs Fahkumram | 6–6 | 50.00% |
| Ishin vs Devil Jin | 5–6 | 45.45% |
| Ishin vs Alisa | 2–8 | 20.00% |
| Ishin vs Nina | 2–8 | 20.00% |
| Ishin vs Heihachi | 5–5 | 50.00% |
| Ishin vs Armor King | 1–8 | 11.11% |
| Ishin vs Reina | 5–3 | 62.50% |
| Ishin vs Paul | 4–3 | 57.14% |
| Ishin vs Claudio | 0–6 | 0.00% |
| Ishin vs Leroy | 2–4 | 33.33% |
| Ishin vs Xiaoyu | 1–4 | 20.00% |
| Ishin vs Lee | 5–0 | 100.00% |
| Ishin vs Zafina | 1–4 | 20.00% |
| Ishin vs Lidia | 1–4 | 20.00% |
| Ishin vs Clive | 2–3 | 40.00% |
| Ishin vs Yoshimitsu | 0–4 | 0.00% |
| Ishin vs Bryan | 2–1 | 66.67% |
| Ishin vs Jun | 2–1 | 66.67% |
| Ishin vs Jack-8 | 0–2 | 0.00% |
| Ishin vs Asuka | 0–2 | 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.