| Isachi vs Law | 16–30 | 34.78% |
| Isachi vs Jin | 19–27 | 41.30% |
| Isachi vs King | 20–25 | 44.44% |
| Isachi vs Kazuya | 11–30 | 26.83% |
| Isachi vs Bryan | 12–22 | 35.29% |
| Isachi vs Steve | 22–10 | 68.75% |
| Isachi vs Hwoarang | 18–11 | 62.07% |
| Isachi vs Asuka | 13–12 | 52.00% |
| Isachi vs Dragunov | 10–15 | 40.00% |
| Isachi vs Clive | 12–12 | 50.00% |
| Isachi vs Nina | 11–12 | 47.83% |
| Isachi vs Reina | 10–11 | 47.62% |
| Isachi vs Jun | 9–9 | 50.00% |
| Isachi vs Victor | 7–11 | 38.89% |
| Isachi vs Eddy | 6–12 | 33.33% |
| Isachi vs Anna | 10–8 | 55.56% |
| Isachi vs Xiaoyu | 10–7 | 58.82% |
| Isachi vs Armor King | 6–10 | 37.50% |
| Isachi vs Paul | 7–7 | 50.00% |
| Isachi vs Lidia | 5–9 | 35.71% |
| Isachi vs Yoshimitsu | 5–8 | 38.46% |
| Isachi vs Lili | 4–9 | 30.77% |
| Isachi vs Lars | 3–10 | 23.08% |
| Isachi vs Lee | 7–6 | 53.85% |
| Isachi vs Fahkumram | 5–8 | 38.46% |
| Isachi vs Miary Zo | 5–8 | 38.46% |
| Isachi vs Leroy | 7–5 | 58.33% |
| Isachi vs Devil Jin | 9–1 | 90.00% |
| Isachi vs Alisa | 7–3 | 70.00% |
| Isachi vs Jack-8 | 5–4 | 55.56% |
| Isachi vs Claudio | 4–4 | 50.00% |
| Isachi vs Leo | 4–3 | 57.14% |
| Isachi vs Feng | 3–3 | 50.00% |
| Isachi vs Zafina | 0–4 | 0.00% |
| Isachi vs Azucena | 2–2 | 50.00% |
| Isachi vs Heihachi | 2–2 | 50.00% |
| Isachi vs Raven | 1–2 | 33.33% |
| Isachi vs Shaheen | 0–1 | 0.00% |
| Isachi vs Panda | 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.