| Roni9 vs King | 50–108 | 31.65% |
| Roni9 vs Jin | 47–46 | 50.54% |
| Roni9 vs Law | 36–55 | 39.56% |
| Roni9 vs Eddy | 48–32 | 60.00% |
| Roni9 vs Kazuya | 29–48 | 37.66% |
| Roni9 vs Paul | 32–39 | 45.07% |
| Roni9 vs Dragunov | 30–40 | 42.86% |
| Roni9 vs Steve | 17–45 | 27.42% |
| Roni9 vs Reina | 32–25 | 56.14% |
| Roni9 vs Hwoarang | 22–26 | 45.83% |
| Roni9 vs Victor | 16–26 | 38.10% |
| Roni9 vs Yoshimitsu | 7–27 | 20.59% |
| Roni9 vs Lili | 11–22 | 33.33% |
| Roni9 vs Nina | 17–16 | 51.52% |
| Roni9 vs Bryan | 13–19 | 40.62% |
| Roni9 vs Jun | 10–21 | 32.26% |
| Roni9 vs Devil Jin | 7–22 | 24.14% |
| Roni9 vs Lars | 7–17 | 29.17% |
| Roni9 vs Alisa | 6–18 | 25.00% |
| Roni9 vs Heihachi | 7–15 | 31.82% |
| Roni9 vs Lee | 10–11 | 47.62% |
| Roni9 vs Anna | 9–7 | 56.25% |
| Roni9 vs Jack-8 | 7–8 | 46.67% |
| Roni9 vs Asuka | 4–10 | 28.57% |
| Roni9 vs Raven | 6–8 | 42.86% |
| Roni9 vs Leroy | 6–7 | 46.15% |
| Roni9 vs Clive | 8–4 | 66.67% |
| Roni9 vs Feng | 3–8 | 27.27% |
| Roni9 vs Kuma | 3–8 | 27.27% |
| Roni9 vs Lidia | 7–4 | 63.64% |
| Roni9 vs Leo | 7–3 | 70.00% |
| Roni9 vs Azucena | 3–6 | 33.33% |
| Roni9 vs Xiaoyu | 1–5 | 16.67% |
| Roni9 vs Claudio | 2–4 | 33.33% |
| Roni9 vs Armor King | 0–6 | 0.00% |
| Roni9 vs Panda | 2–2 | 50.00% |
| Roni9 vs Zafina | 2–0 | 100.00% |
| Roni9 vs Fahkumram | 2–0 | 100.00% |
| Roni9 vs Miary Zo | 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.