| Isiah vs Law | 29–13 | 69.05% |
| Isiah vs Reina | 23–17 | 57.50% |
| Isiah vs King | 19–19 | 50.00% |
| Isiah vs Jin | 19–19 | 50.00% |
| Isiah vs Hwoarang | 18–19 | 48.65% |
| Isiah vs Bryan | 19–14 | 57.58% |
| Isiah vs Lili | 18–14 | 56.25% |
| Isiah vs Lars | 16–14 | 53.33% |
| Isiah vs Eddy | 16–14 | 53.33% |
| Isiah vs Asuka | 18–11 | 62.07% |
| Isiah vs Kazuya | 16–12 | 57.14% |
| Isiah vs Feng | 16–12 | 57.14% |
| Isiah vs Dragunov | 19–8 | 70.37% |
| Isiah vs Lee | 14–13 | 51.85% |
| Isiah vs Steve | 10–16 | 38.46% |
| Isiah vs Jun | 8–15 | 34.78% |
| Isiah vs Yoshimitsu | 15–6 | 71.43% |
| Isiah vs Victor | 12–9 | 57.14% |
| Isiah vs Xiaoyu | 7–13 | 35.00% |
| Isiah vs Paul | 7–11 | 38.89% |
| Isiah vs Jack-8 | 12–4 | 75.00% |
| Isiah vs Azucena | 8–8 | 50.00% |
| Isiah vs Devil Jin | 8–5 | 61.54% |
| Isiah vs Kuma | 6–6 | 50.00% |
| Isiah vs Lidia | 4–7 | 36.36% |
| Isiah vs Alisa | 6–3 | 66.67% |
| Isiah vs Leroy | 5–3 | 62.50% |
| Isiah vs Raven | 5–3 | 62.50% |
| Isiah vs Nina | 1–6 | 14.29% |
| Isiah vs Zafina | 5–2 | 71.43% |
| Isiah vs Heihachi | 4–2 | 66.67% |
| Isiah vs Leo | 4–1 | 80.00% |
| Isiah vs Panda | 5–0 | 100.00% |
| Isiah vs Claudio | 1–2 | 33.33% |
| Isiah vs Shaheen | 0–2 | 0.00% |
| Isiah vs Clive | 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.