| Roon vs King | 20–60 | 25.00% |
| Roon vs Kazuya | 22–55 | 28.57% |
| Roon vs Miary Zo | 17–55 | 23.61% |
| Roon vs Jin | 29–41 | 41.43% |
| Roon vs Bryan | 26–37 | 41.27% |
| Roon vs Reina | 21–37 | 36.21% |
| Roon vs Steve | 23–33 | 41.07% |
| Roon vs Dragunov | 12–44 | 21.43% |
| Roon vs Asuka | 27–23 | 54.00% |
| Roon vs Heihachi | 13–33 | 28.26% |
| Roon vs Paul | 12–33 | 26.67% |
| Roon vs Armor King | 10–33 | 23.26% |
| Roon vs Victor | 10–31 | 24.39% |
| Roon vs Law | 8–32 | 20.00% |
| Roon vs Hwoarang | 17–22 | 43.59% |
| Roon vs Lili | 11–28 | 28.21% |
| Roon vs Jun | 20–19 | 51.28% |
| Roon vs Xiaoyu | 17–20 | 45.95% |
| Roon vs Jack-8 | 17–18 | 48.57% |
| Roon vs Yoshimitsu | 13–19 | 40.62% |
| Roon vs Anna | 13–15 | 46.43% |
| Roon vs Eddy | 7–19 | 26.92% |
| Roon vs Feng | 4–20 | 16.67% |
| Roon vs Alisa | 6–18 | 25.00% |
| Roon vs Fahkumram | 8–16 | 33.33% |
| Roon vs Claudio | 6–16 | 27.27% |
| Roon vs Raven | 9–10 | 47.37% |
| Roon vs Devil Jin | 3–15 | 16.67% |
| Roon vs Lars | 6–12 | 33.33% |
| Roon vs Azucena | 10–8 | 55.56% |
| Roon vs Shaheen | 4–13 | 23.53% |
| Roon vs Kuma | 2–13 | 13.33% |
| Roon vs Panda | 7–8 | 46.67% |
| Roon vs Lidia | 6–9 | 40.00% |
| Roon vs Leo | 3–8 | 27.27% |
| Roon vs Clive | 1–9 | 10.00% |
| Roon vs Lee | 1–7 | 12.50% |
| Roon vs Nina | 3–4 | 42.86% |
| Roon vs Leroy | 0–3 | 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.