| Master Roshii vs King | 12–22 | 35.29% |
| Master Roshii vs Jin | 17–17 | 50.00% |
| Master Roshii vs Reina | 18–15 | 54.55% |
| Master Roshii vs Steve | 16–16 | 50.00% |
| Master Roshii vs Hwoarang | 15–13 | 53.57% |
| Master Roshii vs Law | 12–15 | 44.44% |
| Master Roshii vs Kazuya | 10–17 | 37.04% |
| Master Roshii vs Victor | 13–11 | 54.17% |
| Master Roshii vs Eddy | 6–14 | 30.00% |
| Master Roshii vs Bryan | 5–14 | 26.32% |
| Master Roshii vs Jun | 8–11 | 42.11% |
| Master Roshii vs Asuka | 11–7 | 61.11% |
| Master Roshii vs Dragunov | 6–11 | 35.29% |
| Master Roshii vs Lili | 5–10 | 33.33% |
| Master Roshii vs Raven | 3–12 | 20.00% |
| Master Roshii vs Paul | 7–7 | 50.00% |
| Master Roshii vs Yoshimitsu | 5–9 | 35.71% |
| Master Roshii vs Lars | 10–4 | 71.43% |
| Master Roshii vs Leroy | 11–2 | 84.62% |
| Master Roshii vs Xiaoyu | 4–7 | 36.36% |
| Master Roshii vs Feng | 3–8 | 27.27% |
| Master Roshii vs Nina | 4–7 | 36.36% |
| Master Roshii vs Lidia | 4–7 | 36.36% |
| Master Roshii vs Heihachi | 7–4 | 63.64% |
| Master Roshii vs Lee | 5–5 | 50.00% |
| Master Roshii vs Azucena | 3–7 | 30.00% |
| Master Roshii vs Jack-8 | 4–5 | 44.44% |
| Master Roshii vs Alisa | 6–3 | 66.67% |
| Master Roshii vs Devil Jin | 3–5 | 37.50% |
| Master Roshii vs Claudio | 2–3 | 40.00% |
| Master Roshii vs Kuma | 3–2 | 60.00% |
| Master Roshii vs Clive | 1–4 | 20.00% |
| Master Roshii vs Leo | 4–0 | 100.00% |
| Master Roshii vs Zafina | 1–2 | 33.33% |
| Master Roshii vs Shaheen | 0–2 | 0.00% |
| Master Roshii vs Panda | 2–0 | 100.00% |
| Master Roshii vs Fahkumram | 0–2 | 0.00% |
| Master Roshii vs Armor King | 2–0 | 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.