| Rost vs Bryan | 3–4 | 42.86% |
| Rost vs Reina | 3–3 | 50.00% |
| Rost vs Jin | 3–2 | 60.00% |
| Rost vs Kazuya | 2–2 | 50.00% |
| Rost vs Nina | 3–1 | 75.00% |
| Rost vs Azucena | 1–3 | 25.00% |
| Rost vs Eddy | 1–3 | 25.00% |
| Rost vs Hwoarang | 1–2 | 33.33% |
| Rost vs Steve | 2–1 | 66.67% |
| Rost vs Devil Jin | 0–3 | 0.00% |
| Rost vs Paul | 1–1 | 50.00% |
| Rost vs Asuka | 2–0 | 100.00% |
| Rost vs Law | 0–1 | 0.00% |
| Rost vs Leo | 0–1 | 0.00% |
| Rost vs Lars | 1–0 | 100.00% |
| Rost vs Shaheen | 0–1 | 0.00% |
| Rost vs Panda | 0–1 | 0.00% |
| Rost vs Lidia | 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.