| Ertillo vs Reina | 16–0 | 100.00% |
| Ertillo vs Lili | 8–4 | 66.67% |
| Ertillo vs Law | 7–2 | 77.78% |
| Ertillo vs Jin | 4–3 | 57.14% |
| Ertillo vs Lidia | 5–2 | 71.43% |
| Ertillo vs Yoshimitsu | 6–0 | 100.00% |
| Ertillo vs Kazuya | 1–4 | 20.00% |
| Ertillo vs Jun | 3–2 | 60.00% |
| Ertillo vs King | 2–2 | 50.00% |
| Ertillo vs Bryan | 0–4 | 0.00% |
| Ertillo vs Steve | 4–0 | 100.00% |
| Ertillo vs Eddy | 4–0 | 100.00% |
| Ertillo vs Hwoarang | 1–2 | 33.33% |
| Ertillo vs Asuka | 0–2 | 0.00% |
| Ertillo vs Leo | 2–0 | 100.00% |
| Ertillo vs Shaheen | 2–0 | 100.00% |
| Ertillo vs Nina | 1–1 | 50.00% |
| Ertillo vs Victor | 1–1 | 50.00% |
| Ertillo vs Xiaoyu | 0–1 | 0.00% |
| Ertillo vs Jack-8 | 1–0 | 100.00% |
| Ertillo vs Devil Jin | 0–1 | 0.00% |
| Ertillo vs Feng | 1–0 | 100.00% |
| Ertillo vs Dragunov | 0–1 | 0.00% |
| Ertillo vs Lars | 1–0 | 100.00% |
| Ertillo vs Zafina | 1–0 | 100.00% |
| Ertillo vs Raven | 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.