| RockHoward vs Kazuya | 12–15 | 44.44% |
| RockHoward vs King | 10–10 | 50.00% |
| RockHoward vs Hwoarang | 9–6 | 60.00% |
| RockHoward vs Reina | 7–6 | 53.85% |
| RockHoward vs Bryan | 5–7 | 41.67% |
| RockHoward vs Law | 6–4 | 60.00% |
| RockHoward vs Jin | 5–5 | 50.00% |
| RockHoward vs Leroy | 2–8 | 20.00% |
| RockHoward vs Lidia | 6–3 | 66.67% |
| RockHoward vs Paul | 2–4 | 33.33% |
| RockHoward vs Yoshimitsu | 3–3 | 50.00% |
| RockHoward vs Lili | 2–4 | 33.33% |
| RockHoward vs Kuma | 0–6 | 0.00% |
| RockHoward vs Clive | 2–4 | 33.33% |
| RockHoward vs Lars | 4–1 | 80.00% |
| RockHoward vs Lee | 1–4 | 20.00% |
| RockHoward vs Xiaoyu | 4–0 | 100.00% |
| RockHoward vs Nina | 0–4 | 0.00% |
| RockHoward vs Jun | 3–1 | 75.00% |
| RockHoward vs Victor | 2–2 | 50.00% |
| RockHoward vs Eddy | 1–3 | 25.00% |
| RockHoward vs Steve | 1–2 | 33.33% |
| RockHoward vs Jack-8 | 1–2 | 33.33% |
| RockHoward vs Asuka | 1–2 | 33.33% |
| RockHoward vs Claudio | 1–2 | 33.33% |
| RockHoward vs Feng | 0–2 | 0.00% |
| RockHoward vs Dragunov | 0–2 | 0.00% |
| RockHoward vs Leo | 2–0 | 100.00% |
| RockHoward vs Alisa | 0–2 | 0.00% |
| RockHoward vs Devil Jin | 1–0 | 100.00% |
| RockHoward vs Azucena | 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.