| S1IVz vs King | 4–12 | 25.00% |
| S1IVz vs Armor King | 5–11 | 31.25% |
| S1IVz vs Reina | 7–7 | 50.00% |
| S1IVz vs Law | 2–6 | 25.00% |
| S1IVz vs Steve | 3–5 | 37.50% |
| S1IVz vs Hwoarang | 2–5 | 28.57% |
| S1IVz vs Jack-8 | 2–4 | 33.33% |
| S1IVz vs Dragunov | 4–2 | 66.67% |
| S1IVz vs Victor | 2–4 | 33.33% |
| S1IVz vs Lee | 0–5 | 0.00% |
| S1IVz vs Jun | 1–4 | 20.00% |
| S1IVz vs Jin | 1–3 | 25.00% |
| S1IVz vs Alisa | 1–2 | 33.33% |
| S1IVz vs Azucena | 0–3 | 0.00% |
| S1IVz vs Clive | 0–3 | 0.00% |
| S1IVz vs Paul | 0–2 | 0.00% |
| S1IVz vs Kazuya | 0–2 | 0.00% |
| S1IVz vs Asuka | 0–2 | 0.00% |
| S1IVz vs Devil Jin | 0–2 | 0.00% |
| S1IVz vs Lars | 0–2 | 0.00% |
| S1IVz vs Leroy | 0–2 | 0.00% |
| S1IVz vs Raven | 1–1 | 50.00% |
| S1IVz vs Lili | 1–0 | 100.00% |
| S1IVz vs Zafina | 0–1 | 0.00% |
| S1IVz vs Eddy | 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.