| Roundhouse vs Hwoarang | 61–18 | 77.22% |
| Roundhouse vs Kazuya | 30–21 | 58.82% |
| Roundhouse vs King | 36–13 | 73.47% |
| Roundhouse vs Bryan | 27–20 | 57.45% |
| Roundhouse vs Jin | 25–15 | 62.50% |
| Roundhouse vs Dragunov | 24–15 | 61.54% |
| Roundhouse vs Law | 31–6 | 83.78% |
| Roundhouse vs Devil Jin | 19–14 | 57.58% |
| Roundhouse vs Yoshimitsu | 24–8 | 75.00% |
| Roundhouse vs Lee | 15–16 | 48.39% |
| Roundhouse vs Lili | 19–11 | 63.33% |
| Roundhouse vs Eddy | 21–9 | 70.00% |
| Roundhouse vs Heihachi | 18–12 | 60.00% |
| Roundhouse vs Steve | 17–12 | 58.62% |
| Roundhouse vs Reina | 18–9 | 66.67% |
| Roundhouse vs Paul | 16–10 | 61.54% |
| Roundhouse vs Armor King | 23–3 | 88.46% |
| Roundhouse vs Azucena | 16–6 | 72.73% |
| Roundhouse vs Alisa | 15–6 | 71.43% |
| Roundhouse vs Nina | 16–5 | 76.19% |
| Roundhouse vs Raven | 12–7 | 63.16% |
| Roundhouse vs Victor | 11–6 | 64.71% |
| Roundhouse vs Lars | 12–4 | 75.00% |
| Roundhouse vs Anna | 11–5 | 68.75% |
| Roundhouse vs Asuka | 9–6 | 60.00% |
| Roundhouse vs Feng | 9–6 | 60.00% |
| Roundhouse vs Leroy | 7–8 | 46.67% |
| Roundhouse vs Xiaoyu | 8–6 | 57.14% |
| Roundhouse vs Leo | 9–5 | 64.29% |
| Roundhouse vs Fahkumram | 8–6 | 57.14% |
| Roundhouse vs Jun | 6–7 | 46.15% |
| Roundhouse vs Lidia | 9–4 | 69.23% |
| Roundhouse vs Shaheen | 6–6 | 50.00% |
| Roundhouse vs Jack-8 | 6–5 | 54.55% |
| Roundhouse vs Kuma | 5–4 | 55.56% |
| Roundhouse vs Clive | 4–4 | 50.00% |
| Roundhouse vs Miary Zo | 4–3 | 57.14% |
| Roundhouse vs Claudio | 2–2 | 50.00% |
| Roundhouse vs Zafina | 2–1 | 66.67% |
| Roundhouse vs Panda | 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.