| Grego vs Eddy | 25–25 | 50.00% |
| Grego vs King | 22–25 | 46.81% |
| Grego vs Reina | 23–15 | 60.53% |
| Grego vs Kazuya | 12–14 | 46.15% |
| Grego vs Lili | 12–13 | 48.00% |
| Grego vs Jin | 10–13 | 43.48% |
| Grego vs Hwoarang | 14–8 | 63.64% |
| Grego vs Heihachi | 5–17 | 22.73% |
| Grego vs Steve | 13–7 | 65.00% |
| Grego vs Jun | 7–12 | 36.84% |
| Grego vs Dragunov | 7–8 | 46.67% |
| Grego vs Zafina | 5–9 | 35.71% |
| Grego vs Azucena | 6–5 | 54.55% |
| Grego vs Yoshimitsu | 8–2 | 80.00% |
| Grego vs Bryan | 5–5 | 50.00% |
| Grego vs Asuka | 7–2 | 77.78% |
| Grego vs Raven | 5–4 | 55.56% |
| Grego vs Paul | 5–3 | 62.50% |
| Grego vs Law | 6–2 | 75.00% |
| Grego vs Jack-8 | 3–5 | 37.50% |
| Grego vs Lars | 5–3 | 62.50% |
| Grego vs Lee | 3–5 | 37.50% |
| Grego vs Devil Jin | 4–3 | 57.14% |
| Grego vs Feng | 2–5 | 28.57% |
| Grego vs Alisa | 3–4 | 42.86% |
| Grego vs Lidia | 4–3 | 57.14% |
| Grego vs Fahkumram | 4–2 | 66.67% |
| Grego vs Armor King | 2–4 | 33.33% |
| Grego vs Xiaoyu | 1–4 | 20.00% |
| Grego vs Leo | 4–1 | 80.00% |
| Grego vs Victor | 3–2 | 60.00% |
| Grego vs Clive | 3–2 | 60.00% |
| Grego vs Leroy | 2–2 | 50.00% |
| Grego vs Claudio | 2–1 | 66.67% |
| Grego vs Kuma | 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.