| R2_D vs Reina | 3–10 | 23.08% |
| R2_D vs Victor | 6–5 | 54.55% |
| R2_D vs Lidia | 2–9 | 18.18% |
| R2_D vs Xiaoyu | 4–4 | 50.00% |
| R2_D vs Nina | 7–1 | 87.50% |
| R2_D vs Bryan | 0–7 | 0.00% |
| R2_D vs Asuka | 4–3 | 57.14% |
| R2_D vs Paul | 0–6 | 0.00% |
| R2_D vs King | 3–3 | 50.00% |
| R2_D vs Kazuya | 0–5 | 0.00% |
| R2_D vs Dragunov | 1–4 | 20.00% |
| R2_D vs Yoshimitsu | 1–3 | 25.00% |
| R2_D vs Azucena | 0–4 | 0.00% |
| R2_D vs Eddy | 2–2 | 50.00% |
| R2_D vs Law | 2–1 | 66.67% |
| R2_D vs Steve | 3–0 | 100.00% |
| R2_D vs Lili | 2–1 | 66.67% |
| R2_D vs Alisa | 2–1 | 66.67% |
| R2_D vs Kuma | 2–1 | 66.67% |
| R2_D vs Jin | 0–2 | 0.00% |
| R2_D vs Devil Jin | 2–0 | 100.00% |
| R2_D vs Shaheen | 0–2 | 0.00% |
| R2_D vs Leroy | 1–1 | 50.00% |
| R2_D vs Jun | 2–0 | 100.00% |
| R2_D vs Claudio | 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.