| Grass vs King | 12–6 | 66.67% |
| Grass vs Reina | 11–3 | 78.57% |
| Grass vs Clive | 7–5 | 58.33% |
| Grass vs Jun | 10–1 | 90.91% |
| Grass vs Claudio | 5–5 | 50.00% |
| Grass vs Kuma | 7–3 | 70.00% |
| Grass vs Yoshimitsu | 9–0 | 100.00% |
| Grass vs Hwoarang | 6–3 | 66.67% |
| Grass vs Jin | 4–5 | 44.44% |
| Grass vs Bryan | 4–5 | 44.44% |
| Grass vs Steve | 3–6 | 33.33% |
| Grass vs Leroy | 8–1 | 88.89% |
| Grass vs Law | 2–5 | 28.57% |
| Grass vs Lili | 4–3 | 57.14% |
| Grass vs Leo | 6–1 | 85.71% |
| Grass vs Azucena | 6–1 | 85.71% |
| Grass vs Heihachi | 6–0 | 100.00% |
| Grass vs Xiaoyu | 5–0 | 100.00% |
| Grass vs Kazuya | 4–1 | 80.00% |
| Grass vs Asuka | 1–4 | 20.00% |
| Grass vs Zafina | 4–1 | 80.00% |
| Grass vs Devil Jin | 3–1 | 75.00% |
| Grass vs Dragunov | 4–0 | 100.00% |
| Grass vs Lidia | 2–2 | 50.00% |
| Grass vs Feng | 1–2 | 33.33% |
| Grass vs Lars | 0–3 | 0.00% |
| Grass vs Alisa | 1–2 | 33.33% |
| Grass vs Nina | 2–1 | 66.67% |
| Grass vs Lee | 3–0 | 100.00% |
| Grass vs Eddy | 3–0 | 100.00% |
| Grass vs Shaheen | 2–0 | 100.00% |
| Grass vs Victor | 0–2 | 0.00% |
| Grass vs Anna | 2–0 | 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.