| Costa vs Kazuya | 28–19 | 59.57% |
| Costa vs Jin | 19–18 | 51.35% |
| Costa vs Reina | 18–19 | 48.65% |
| Costa vs Bryan | 19–16 | 54.29% |
| Costa vs Yoshimitsu | 17–11 | 60.71% |
| Costa vs Steve | 14–14 | 50.00% |
| Costa vs Dragunov | 15–13 | 53.57% |
| Costa vs Paul | 13–9 | 59.09% |
| Costa vs King | 16–4 | 80.00% |
| Costa vs Lili | 9–10 | 47.37% |
| Costa vs Lee | 12–7 | 63.16% |
| Costa vs Xiaoyu | 8–10 | 44.44% |
| Costa vs Hwoarang | 7–10 | 41.18% |
| Costa vs Jun | 12–4 | 75.00% |
| Costa vs Heihachi | 10–6 | 62.50% |
| Costa vs Feng | 5–10 | 33.33% |
| Costa vs Armor King | 13–2 | 86.67% |
| Costa vs Devil Jin | 6–8 | 42.86% |
| Costa vs Azucena | 9–5 | 64.29% |
| Costa vs Claudio | 10–3 | 76.92% |
| Costa vs Zafina | 10–2 | 83.33% |
| Costa vs Victor | 7–5 | 58.33% |
| Costa vs Eddy | 4–8 | 33.33% |
| Costa vs Shaheen | 3–8 | 27.27% |
| Costa vs Raven | 8–3 | 72.73% |
| Costa vs Asuka | 4–6 | 40.00% |
| Costa vs Clive | 4–6 | 40.00% |
| Costa vs Law | 6–3 | 66.67% |
| Costa vs Nina | 7–2 | 77.78% |
| Costa vs Leroy | 5–3 | 62.50% |
| Costa vs Leo | 2–5 | 28.57% |
| Costa vs Kuma | 3–4 | 42.86% |
| Costa vs Anna | 5–2 | 71.43% |
| Costa vs Lars | 3–3 | 50.00% |
| Costa vs Lidia | 5–1 | 83.33% |
| Costa vs Fahkumram | 3–3 | 50.00% |
| Costa vs Alisa | 4–1 | 80.00% |
| Costa vs Panda | 2–1 | 66.67% |
| Costa vs Miary Zo | 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.