| RoundhouseKlaus vs Law | 12–19 | 38.71% |
| RoundhouseKlaus vs Hwoarang | 14–17 | 45.16% |
| RoundhouseKlaus vs King | 10–20 | 33.33% |
| RoundhouseKlaus vs Armor King | 9–21 | 30.00% |
| RoundhouseKlaus vs Steve | 10–12 | 45.45% |
| RoundhouseKlaus vs Jin | 3–17 | 15.00% |
| RoundhouseKlaus vs Lili | 8–9 | 47.06% |
| RoundhouseKlaus vs Heihachi | 10–7 | 58.82% |
| RoundhouseKlaus vs Kazuya | 11–5 | 68.75% |
| RoundhouseKlaus vs Lars | 6–10 | 37.50% |
| RoundhouseKlaus vs Clive | 12–4 | 75.00% |
| RoundhouseKlaus vs Nina | 6–9 | 40.00% |
| RoundhouseKlaus vs Bryan | 5–9 | 35.71% |
| RoundhouseKlaus vs Eddy | 3–11 | 21.43% |
| RoundhouseKlaus vs Dragunov | 4–8 | 33.33% |
| RoundhouseKlaus vs Reina | 4–8 | 33.33% |
| RoundhouseKlaus vs Leroy | 5–5 | 50.00% |
| RoundhouseKlaus vs Fahkumram | 3–7 | 30.00% |
| RoundhouseKlaus vs Paul | 1–8 | 11.11% |
| RoundhouseKlaus vs Azucena | 6–3 | 66.67% |
| RoundhouseKlaus vs Miary Zo | 4–5 | 44.44% |
| RoundhouseKlaus vs Lee | 4–4 | 50.00% |
| RoundhouseKlaus vs Yoshimitsu | 3–4 | 42.86% |
| RoundhouseKlaus vs Feng | 1–6 | 14.29% |
| RoundhouseKlaus vs Lidia | 4–3 | 57.14% |
| RoundhouseKlaus vs Xiaoyu | 1–4 | 20.00% |
| RoundhouseKlaus vs Leo | 3–2 | 60.00% |
| RoundhouseKlaus vs Anna | 1–4 | 20.00% |
| RoundhouseKlaus vs Alisa | 0–4 | 0.00% |
| RoundhouseKlaus vs Kuma | 2–2 | 50.00% |
| RoundhouseKlaus vs Jack-8 | 1–2 | 33.33% |
| RoundhouseKlaus vs Zafina | 0–3 | 0.00% |
| RoundhouseKlaus vs Victor | 0–3 | 0.00% |
| RoundhouseKlaus vs Raven | 1–2 | 33.33% |
| RoundhouseKlaus vs Asuka | 0–2 | 0.00% |
| RoundhouseKlaus vs Claudio | 0–2 | 0.00% |
| RoundhouseKlaus vs Shaheen | 2–0 | 100.00% |
| RoundhouseKlaus vs Jun | 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.