| MelloB420 vs King | 32–15 | 68.09% |
| MelloB420 vs Jin | 26–15 | 63.41% |
| MelloB420 vs Eddy | 28–12 | 70.00% |
| MelloB420 vs Hwoarang | 21–11 | 65.62% |
| MelloB420 vs Azucena | 22–7 | 75.86% |
| MelloB420 vs Dragunov | 23–4 | 85.19% |
| MelloB420 vs Feng | 14–8 | 63.64% |
| MelloB420 vs Law | 10–9 | 52.63% |
| MelloB420 vs Lars | 15–3 | 83.33% |
| MelloB420 vs Fahkumram | 8–10 | 44.44% |
| MelloB420 vs Nina | 10–7 | 58.82% |
| MelloB420 vs Reina | 7–10 | 41.18% |
| MelloB420 vs Yoshimitsu | 9–6 | 60.00% |
| MelloB420 vs Bryan | 6–9 | 40.00% |
| MelloB420 vs Victor | 10–5 | 66.67% |
| MelloB420 vs Jun | 11–3 | 78.57% |
| MelloB420 vs Steve | 10–3 | 76.92% |
| MelloB420 vs Leo | 7–6 | 53.85% |
| MelloB420 vs Kazuya | 8–4 | 66.67% |
| MelloB420 vs Claudio | 7–4 | 63.64% |
| MelloB420 vs Paul | 3–7 | 30.00% |
| MelloB420 vs Jack-8 | 7–3 | 70.00% |
| MelloB420 vs Asuka | 7–3 | 70.00% |
| MelloB420 vs Leroy | 7–3 | 70.00% |
| MelloB420 vs Lili | 4–5 | 44.44% |
| MelloB420 vs Shaheen | 4–5 | 44.44% |
| MelloB420 vs Armor King | 3–6 | 33.33% |
| MelloB420 vs Lee | 1–6 | 14.29% |
| MelloB420 vs Zafina | 5–2 | 71.43% |
| MelloB420 vs Xiaoyu | 1–5 | 16.67% |
| MelloB420 vs Alisa | 4–2 | 66.67% |
| MelloB420 vs Raven | 3–3 | 50.00% |
| MelloB420 vs Kuma | 4–1 | 80.00% |
| MelloB420 vs Heihachi | 4–0 | 100.00% |
| MelloB420 vs Lidia | 0–3 | 0.00% |
| MelloB420 vs Clive | 2–1 | 66.67% |
| MelloB420 vs Miary Zo | 0–3 | 0.00% |
| MelloB420 vs Devil Jin | 2–0 | 100.00% |
| MelloB420 vs Panda | 0–1 | 0.00% |
| MelloB420 vs Anna | 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.