| grengar vs Reina | 28–24 | 53.85% |
| grengar vs Jin | 12–18 | 40.00% |
| grengar vs Kazuya | 10–19 | 34.48% |
| grengar vs Dragunov | 11–17 | 39.29% |
| grengar vs Lili | 15–12 | 55.56% |
| grengar vs Victor | 13–11 | 54.17% |
| grengar vs Hwoarang | 7–16 | 30.43% |
| grengar vs Paul | 6–16 | 27.27% |
| grengar vs Law | 6–14 | 30.00% |
| grengar vs King | 12–8 | 60.00% |
| grengar vs Jun | 7–12 | 36.84% |
| grengar vs Eddy | 3–15 | 16.67% |
| grengar vs Asuka | 7–10 | 41.18% |
| grengar vs Steve | 8–8 | 50.00% |
| grengar vs Lars | 4–12 | 25.00% |
| grengar vs Yoshimitsu | 9–6 | 60.00% |
| grengar vs Lee | 7–8 | 46.67% |
| grengar vs Azucena | 7–8 | 46.67% |
| grengar vs Xiaoyu | 5–9 | 35.71% |
| grengar vs Devil Jin | 4–10 | 28.57% |
| grengar vs Claudio | 4–6 | 40.00% |
| grengar vs Jack-8 | 7–2 | 77.78% |
| grengar vs Alisa | 7–2 | 77.78% |
| grengar vs Nina | 5–4 | 55.56% |
| grengar vs Kuma | 3–5 | 37.50% |
| grengar vs Zafina | 4–4 | 50.00% |
| grengar vs Bryan | 1–5 | 16.67% |
| grengar vs Feng | 1–4 | 20.00% |
| grengar vs Leroy | 2–1 | 66.67% |
| grengar vs Raven | 2–1 | 66.67% |
| grengar vs Leo | 1–1 | 50.00% |
| grengar vs Shaheen | 0–1 | 0.00% |
| grengar vs Clive | 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.