| Mr 420 vs Steve | 2–9 | 18.18% |
| Mr 420 vs Hwoarang | 3–7 | 30.00% |
| Mr 420 vs Reina | 5–4 | 55.56% |
| Mr 420 vs Dragunov | 3–4 | 42.86% |
| Mr 420 vs King | 4–2 | 66.67% |
| Mr 420 vs Azucena | 2–4 | 33.33% |
| Mr 420 vs Heihachi | 2–3 | 40.00% |
| Mr 420 vs Paul | 4–0 | 100.00% |
| Mr 420 vs Law | 0–4 | 0.00% |
| Mr 420 vs Yoshimitsu | 0–4 | 0.00% |
| Mr 420 vs Feng | 2–2 | 50.00% |
| Mr 420 vs Lars | 2–2 | 50.00% |
| Mr 420 vs Jin | 0–3 | 0.00% |
| Mr 420 vs Lili | 3–0 | 100.00% |
| Mr 420 vs Kuma | 1–2 | 33.33% |
| Mr 420 vs Panda | 0–3 | 0.00% |
| Mr 420 vs Bryan | 0–2 | 0.00% |
| Mr 420 vs Asuka | 0–2 | 0.00% |
| Mr 420 vs Leo | 2–0 | 100.00% |
| Mr 420 vs Claudio | 2–0 | 100.00% |
| Mr 420 vs Leroy | 0–2 | 0.00% |
| Mr 420 vs Eddy | 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.