| Rondeaux vs Dragunov | 164–160 | 50.62% |
| Rondeaux vs Kazuya | 130–154 | 45.77% |
| Rondeaux vs Jin | 108–105 | 50.70% |
| Rondeaux vs King | 97–115 | 45.75% |
| Rondeaux vs Bryan | 58–129 | 31.02% |
| Rondeaux vs Reina | 81–98 | 45.25% |
| Rondeaux vs Hwoarang | 74–97 | 43.27% |
| Rondeaux vs Paul | 67–86 | 43.79% |
| Rondeaux vs Yoshimitsu | 64–82 | 43.84% |
| Rondeaux vs Steve | 61–75 | 44.85% |
| Rondeaux vs Devil Jin | 50–74 | 40.32% |
| Rondeaux vs Law | 57–65 | 46.72% |
| Rondeaux vs Lili | 40–80 | 33.33% |
| Rondeaux vs Victor | 51–61 | 45.54% |
| Rondeaux vs Lars | 36–64 | 36.00% |
| Rondeaux vs Jun | 44–55 | 44.44% |
| Rondeaux vs Asuka | 37–60 | 38.14% |
| Rondeaux vs Feng | 40–47 | 45.98% |
| Rondeaux vs Xiaoyu | 39–41 | 48.75% |
| Rondeaux vs Azucena | 28–45 | 38.36% |
| Rondeaux vs Lee | 27–44 | 38.03% |
| Rondeaux vs Lidia | 33–38 | 46.48% |
| Rondeaux vs Alisa | 34–36 | 48.57% |
| Rondeaux vs Nina | 33–35 | 48.53% |
| Rondeaux vs Leroy | 22–42 | 34.38% |
| Rondeaux vs Eddy | 25–34 | 42.37% |
| Rondeaux vs Jack-8 | 25–31 | 44.64% |
| Rondeaux vs Claudio | 14–38 | 26.92% |
| Rondeaux vs Clive | 25–25 | 50.00% |
| Rondeaux vs Shaheen | 21–28 | 42.86% |
| Rondeaux vs Heihachi | 30–19 | 61.22% |
| Rondeaux vs Kuma | 13–29 | 30.95% |
| Rondeaux vs Leo | 15–23 | 39.47% |
| Rondeaux vs Raven | 19–13 | 59.38% |
| Rondeaux vs Zafina | 10–13 | 43.48% |
| Rondeaux vs Panda | 3–3 | 50.00% |
| Rondeaux vs Armor King | 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.