| Buff Roger Jr vs King | 12–18 | 40.00% |
| Buff Roger Jr vs Hwoarang | 17–10 | 62.96% |
| Buff Roger Jr vs Law | 15–8 | 65.22% |
| Buff Roger Jr vs Steve | 15–8 | 65.22% |
| Buff Roger Jr vs Heihachi | 14–9 | 60.87% |
| Buff Roger Jr vs Jin | 11–9 | 55.00% |
| Buff Roger Jr vs Kazuya | 15–4 | 78.95% |
| Buff Roger Jr vs Xiaoyu | 10–5 | 66.67% |
| Buff Roger Jr vs Feng | 7–6 | 53.85% |
| Buff Roger Jr vs Lars | 9–4 | 69.23% |
| Buff Roger Jr vs Lee | 7–6 | 53.85% |
| Buff Roger Jr vs Reina | 10–2 | 83.33% |
| Buff Roger Jr vs Paul | 6–4 | 60.00% |
| Buff Roger Jr vs Lidia | 9–1 | 90.00% |
| Buff Roger Jr vs Lili | 6–3 | 66.67% |
| Buff Roger Jr vs Yoshimitsu | 5–3 | 62.50% |
| Buff Roger Jr vs Bryan | 4–2 | 66.67% |
| Buff Roger Jr vs Nina | 1–5 | 16.67% |
| Buff Roger Jr vs Leroy | 0–6 | 0.00% |
| Buff Roger Jr vs Eddy | 5–1 | 83.33% |
| Buff Roger Jr vs Dragunov | 4–1 | 80.00% |
| Buff Roger Jr vs Leo | 5–0 | 100.00% |
| Buff Roger Jr vs Jun | 3–2 | 60.00% |
| Buff Roger Jr vs Zafina | 2–2 | 50.00% |
| Buff Roger Jr vs Azucena | 2–2 | 50.00% |
| Buff Roger Jr vs Victor | 2–1 | 66.67% |
| Buff Roger Jr vs Alisa | 2–0 | 100.00% |
| Buff Roger Jr vs Raven | 2–0 | 100.00% |
| Buff Roger Jr vs Clive | 2–0 | 100.00% |
| Buff Roger Jr vs Asuka | 1–0 | 100.00% |
| Buff Roger Jr vs Devil Jin | 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.