| Ron Mecca vs Jin | 10–19 | 34.48% |
| Ron Mecca vs Kazuya | 9–5 | 64.29% |
| Ron Mecca vs Victor | 3–7 | 30.00% |
| Ron Mecca vs Bryan | 5–4 | 55.56% |
| Ron Mecca vs Jun | 5–4 | 55.56% |
| Ron Mecca vs Reina | 5–4 | 55.56% |
| Ron Mecca vs Azucena | 4–4 | 50.00% |
| Ron Mecca vs Paul | 5–2 | 71.43% |
| Ron Mecca vs Law | 2–5 | 28.57% |
| Ron Mecca vs Dragunov | 3–4 | 42.86% |
| Ron Mecca vs Lars | 1–6 | 14.29% |
| Ron Mecca vs King | 1–5 | 16.67% |
| Ron Mecca vs Leroy | 2–4 | 33.33% |
| Ron Mecca vs Jack-8 | 1–4 | 20.00% |
| Ron Mecca vs Lee | 3–2 | 60.00% |
| Ron Mecca vs Claudio | 3–1 | 75.00% |
| Ron Mecca vs Eddy | 2–2 | 50.00% |
| Ron Mecca vs Yoshimitsu | 0–3 | 0.00% |
| Ron Mecca vs Steve | 1–2 | 33.33% |
| Ron Mecca vs Asuka | 2–1 | 66.67% |
| Ron Mecca vs Raven | 2–1 | 66.67% |
| Ron Mecca vs Xiaoyu | 1–1 | 50.00% |
| Ron Mecca vs Devil Jin | 1–1 | 50.00% |
| Ron Mecca vs Feng | 0–2 | 0.00% |
| Ron Mecca vs Hwoarang | 1–0 | 100.00% |
| Ron Mecca vs Kuma | 0–1 | 0.00% |
| Ron Mecca vs Panda | 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.