| Rontarou vs Kazuya | 35–27 | 56.45% |
| Rontarou vs Reina | 24–29 | 45.28% |
| Rontarou vs King | 35–17 | 67.31% |
| Rontarou vs Hwoarang | 29–21 | 58.00% |
| Rontarou vs Dragunov | 27–22 | 55.10% |
| Rontarou vs Armor King | 10–32 | 23.81% |
| Rontarou vs Lili | 17–22 | 43.59% |
| Rontarou vs Law | 20–16 | 55.56% |
| Rontarou vs Bryan | 13–22 | 37.14% |
| Rontarou vs Asuka | 16–18 | 47.06% |
| Rontarou vs Heihachi | 13–20 | 39.39% |
| Rontarou vs Paul | 15–16 | 48.39% |
| Rontarou vs Anna | 15–15 | 50.00% |
| Rontarou vs Azucena | 9–20 | 31.03% |
| Rontarou vs Xiaoyu | 9–17 | 34.62% |
| Rontarou vs Jin | 7–18 | 28.00% |
| Rontarou vs Steve | 13–12 | 52.00% |
| Rontarou vs Jun | 13–12 | 52.00% |
| Rontarou vs Fahkumram | 7–18 | 28.00% |
| Rontarou vs Alisa | 11–12 | 47.83% |
| Rontarou vs Yoshimitsu | 8–14 | 36.36% |
| Rontarou vs Devil Jin | 10–10 | 50.00% |
| Rontarou vs Feng | 8–12 | 40.00% |
| Rontarou vs Lars | 11–9 | 55.00% |
| Rontarou vs Jack-8 | 7–12 | 36.84% |
| Rontarou vs Victor | 6–13 | 31.58% |
| Rontarou vs Lidia | 12–7 | 63.16% |
| Rontarou vs Nina | 11–7 | 61.11% |
| Rontarou vs Leo | 4–13 | 23.53% |
| Rontarou vs Claudio | 9–8 | 52.94% |
| Rontarou vs Clive | 8–9 | 47.06% |
| Rontarou vs Shaheen | 6–6 | 50.00% |
| Rontarou vs Lee | 5–7 | 41.67% |
| Rontarou vs Kuma | 5–6 | 45.45% |
| Rontarou vs Zafina | 3–6 | 33.33% |
| Rontarou vs Leroy | 3–6 | 33.33% |
| Rontarou vs Raven | 2–5 | 28.57% |
| Rontarou vs Eddy | 5–2 | 71.43% |
| Rontarou vs Panda | 3–2 | 60.00% |
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.