| Robby cheng vs Lili | 15–3 | 83.33% |
| Robby cheng vs King | 6–7 | 46.15% |
| Robby cheng vs Jin | 6–6 | 50.00% |
| Robby cheng vs Law | 8–3 | 72.73% |
| Robby cheng vs Steve | 6–5 | 54.55% |
| Robby cheng vs Kazuya | 2–8 | 20.00% |
| Robby cheng vs Azucena | 4–4 | 50.00% |
| Robby cheng vs Devil Jin | 4–3 | 57.14% |
| Robby cheng vs Reina | 7–0 | 100.00% |
| Robby cheng vs Yoshimitsu | 3–3 | 50.00% |
| Robby cheng vs Bryan | 5–1 | 83.33% |
| Robby cheng vs Alisa | 2–4 | 33.33% |
| Robby cheng vs Leroy | 4–2 | 66.67% |
| Robby cheng vs Jun | 4–2 | 66.67% |
| Robby cheng vs Lidia | 4–2 | 66.67% |
| Robby cheng vs Xiaoyu | 3–2 | 60.00% |
| Robby cheng vs Paul | 1–3 | 25.00% |
| Robby cheng vs Hwoarang | 2–1 | 66.67% |
| Robby cheng vs Lee | 1–2 | 33.33% |
| Robby cheng vs Asuka | 2–0 | 100.00% |
| Robby cheng vs Feng | 2–0 | 100.00% |
| Robby cheng vs Dragunov | 1–1 | 50.00% |
| Robby cheng vs Claudio | 2–0 | 100.00% |
| Robby cheng vs Kuma | 0–2 | 0.00% |
| Robby cheng vs Victor | 1–1 | 50.00% |
| Robby cheng vs Leo | 1–0 | 100.00% |
| Robby cheng vs Lars | 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.