| Robertace21 vs Reina | 10–5 | 66.67% |
| Robertace21 vs Yoshimitsu | 6–8 | 42.86% |
| Robertace21 vs Jin | 10–4 | 71.43% |
| Robertace21 vs Steve | 4–7 | 36.36% |
| Robertace21 vs Lili | 5–5 | 50.00% |
| Robertace21 vs Eddy | 1–7 | 12.50% |
| Robertace21 vs Hwoarang | 1–6 | 14.29% |
| Robertace21 vs Leroy | 3–4 | 42.86% |
| Robertace21 vs Azucena | 3–4 | 42.86% |
| Robertace21 vs King | 0–6 | 0.00% |
| Robertace21 vs Asuka | 2–4 | 33.33% |
| Robertace21 vs Kazuya | 2–3 | 40.00% |
| Robertace21 vs Jack-8 | 4–1 | 80.00% |
| Robertace21 vs Dragunov | 2–3 | 40.00% |
| Robertace21 vs Zafina | 1–4 | 20.00% |
| Robertace21 vs Jun | 1–4 | 20.00% |
| Robertace21 vs Victor | 3–2 | 60.00% |
| Robertace21 vs Paul | 0–4 | 0.00% |
| Robertace21 vs Shaheen | 0–4 | 0.00% |
| Robertace21 vs Nina | 2–2 | 50.00% |
| Robertace21 vs Law | 0–3 | 0.00% |
| Robertace21 vs Alisa | 1–2 | 33.33% |
| Robertace21 vs Leo | 0–2 | 0.00% |
| Robertace21 vs Lars | 0–2 | 0.00% |
| Robertace21 vs Raven | 2–0 | 100.00% |
| Robertace21 vs Xiaoyu | 2–0 | 100.00% |
| Robertace21 vs Claudio | 0–2 | 0.00% |
| Robertace21 vs Kuma | 0–2 | 0.00% |
| Robertace21 vs Bryan | 0–1 | 0.00% |
| Robertace21 vs Lee | 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.