| GrassKnight vs King | 8–3 | 72.73% |
| GrassKnight vs Jin | 6–5 | 54.55% |
| GrassKnight vs Law | 9–1 | 90.00% |
| GrassKnight vs Steve | 4–5 | 44.44% |
| GrassKnight vs Bryan | 7–1 | 87.50% |
| GrassKnight vs Reina | 4–4 | 50.00% |
| GrassKnight vs Clive | 6–2 | 75.00% |
| GrassKnight vs Yoshimitsu | 5–2 | 71.43% |
| GrassKnight vs Kazuya | 5–2 | 71.43% |
| GrassKnight vs Asuka | 2–5 | 28.57% |
| GrassKnight vs Eddy | 1–5 | 16.67% |
| GrassKnight vs Jack-8 | 3–2 | 60.00% |
| GrassKnight vs Alisa | 2–3 | 40.00% |
| GrassKnight vs Victor | 5–0 | 100.00% |
| GrassKnight vs Paul | 1–2 | 33.33% |
| GrassKnight vs Hwoarang | 2–1 | 66.67% |
| GrassKnight vs Devil Jin | 1–2 | 33.33% |
| GrassKnight vs Feng | 2–1 | 66.67% |
| GrassKnight vs Lili | 1–2 | 33.33% |
| GrassKnight vs Lars | 2–1 | 66.67% |
| GrassKnight vs Claudio | 2–1 | 66.67% |
| GrassKnight vs Heihachi | 3–0 | 100.00% |
| GrassKnight vs Xiaoyu | 1–1 | 50.00% |
| GrassKnight vs Kuma | 2–0 | 100.00% |
| GrassKnight vs Shaheen | 1–0 | 100.00% |
| GrassKnight vs Lee | 1–0 | 100.00% |
| GrassKnight vs Zafina | 1–0 | 100.00% |
| GrassKnight 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.