| GRUNDY vs Hwoarang | 6–10 | 37.50% |
| GRUNDY vs Lili | 4–12 | 25.00% |
| GRUNDY vs Steve | 5–8 | 38.46% |
| GRUNDY vs Victor | 3–10 | 23.08% |
| GRUNDY vs Eddy | 3–9 | 25.00% |
| GRUNDY vs Law | 2–8 | 20.00% |
| GRUNDY vs King | 6–3 | 66.67% |
| GRUNDY vs Lidia | 3–6 | 33.33% |
| GRUNDY vs Bryan | 3–5 | 37.50% |
| GRUNDY vs Leo | 2–6 | 25.00% |
| GRUNDY vs Xiaoyu | 3–3 | 50.00% |
| GRUNDY vs Jin | 3–3 | 50.00% |
| GRUNDY vs Kazuya | 3–3 | 50.00% |
| GRUNDY vs Zafina | 4–2 | 66.67% |
| GRUNDY vs Fahkumram | 3–3 | 50.00% |
| GRUNDY vs Yoshimitsu | 2–3 | 40.00% |
| GRUNDY vs Asuka | 4–1 | 80.00% |
| GRUNDY vs Jun | 1–4 | 20.00% |
| GRUNDY vs Reina | 4–1 | 80.00% |
| GRUNDY vs Azucena | 2–2 | 50.00% |
| GRUNDY vs Paul | 1–2 | 33.33% |
| GRUNDY vs Dragunov | 2–1 | 66.67% |
| GRUNDY vs Claudio | 0–3 | 0.00% |
| GRUNDY vs Lee | 0–3 | 0.00% |
| GRUNDY vs Leroy | 2–1 | 66.67% |
| GRUNDY vs Raven | 2–1 | 66.67% |
| GRUNDY vs Anna | 1–2 | 33.33% |
| GRUNDY vs Devil Jin | 1–1 | 50.00% |
| GRUNDY vs Clive | 2–0 | 100.00% |
| GRUNDY vs Jack-8 | 0–1 | 0.00% |
| GRUNDY vs Feng | 1–0 | 100.00% |
| GRUNDY vs Lars | 0–1 | 0.00% |
| GRUNDY vs Shaheen | 1–0 | 100.00% |
| GRUNDY vs Nina | 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.