| Mrj321 vs Reina | 15–9 | 62.50% |
| Mrj321 vs Leroy | 9–4 | 69.23% |
| Mrj321 vs Jun | 8–5 | 61.54% |
| Mrj321 vs Bryan | 8–4 | 66.67% |
| Mrj321 vs Kazuya | 7–4 | 63.64% |
| Mrj321 vs Dragunov | 7–4 | 63.64% |
| Mrj321 vs Clive | 8–3 | 72.73% |
| Mrj321 vs Victor | 8–1 | 88.89% |
| Mrj321 vs Lili | 7–1 | 87.50% |
| Mrj321 vs Eddy | 5–3 | 62.50% |
| Mrj321 vs King | 6–2 | 75.00% |
| Mrj321 vs Paul | 4–3 | 57.14% |
| Mrj321 vs Feng | 5–2 | 71.43% |
| Mrj321 vs Law | 6–0 | 100.00% |
| Mrj321 vs Xiaoyu | 6–0 | 100.00% |
| Mrj321 vs Nina | 2–3 | 40.00% |
| Mrj321 vs Raven | 1–4 | 20.00% |
| Mrj321 vs Hwoarang | 4–0 | 100.00% |
| Mrj321 vs Asuka | 2–2 | 50.00% |
| Mrj321 vs Claudio | 3–1 | 75.00% |
| Mrj321 vs Jin | 3–0 | 100.00% |
| Mrj321 vs Devil Jin | 2–1 | 66.67% |
| Mrj321 vs Lars | 3–0 | 100.00% |
| Mrj321 vs Azucena | 2–1 | 66.67% |
| Mrj321 vs Lidia | 1–2 | 33.33% |
| Mrj321 vs Leo | 2–0 | 100.00% |
| Mrj321 vs Lee | 2–0 | 100.00% |
| Mrj321 vs Yoshimitsu | 0–2 | 0.00% |
| Mrj321 vs Steve | 2–0 | 100.00% |
| Mrj321 vs Shaheen | 2–0 | 100.00% |
| Mrj321 vs Heihachi | 0–2 | 0.00% |
| Mrj321 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.