| Real Costa vs Kazuya | 88–111 | 44.22% |
| Real Costa vs King | 86–97–1 | 46.99% |
| Real Costa vs Reina | 91–76 | 54.49% |
| Real Costa vs Jin | 84–67 | 55.63% |
| Real Costa vs Dragunov | 80–66 | 54.79% |
| Real Costa vs Lili | 67–56 | 54.47% |
| Real Costa vs Paul | 64–55 | 53.78% |
| Real Costa vs Steve | 60–53 | 53.10% |
| Real Costa vs Bryan | 45–58 | 43.69% |
| Real Costa vs Hwoarang | 49–47 | 51.04% |
| Real Costa vs Azucena | 33–59 | 35.87% |
| Real Costa vs Law | 49–37 | 56.98% |
| Real Costa vs Victor | 29–35 | 45.31% |
| Real Costa vs Devil Jin | 29–33 | 46.77% |
| Real Costa vs Heihachi | 32–30 | 51.61% |
| Real Costa vs Jun | 34–26 | 56.67% |
| Real Costa vs Yoshimitsu | 31–28 | 52.54% |
| Real Costa vs Jack-8 | 37–21 | 63.79% |
| Real Costa vs Anna | 36–20 | 64.29% |
| Real Costa vs Lee | 31–24 | 56.36% |
| Real Costa vs Lars | 24–25 | 48.98% |
| Real Costa vs Nina | 19–29 | 39.58% |
| Real Costa vs Eddy | 22–26 | 45.83% |
| Real Costa vs Asuka | 25–22 | 53.19% |
| Real Costa vs Leroy | 20–26 | 43.48% |
| Real Costa vs Xiaoyu | 23–19 | 54.76% |
| Real Costa vs Claudio | 21–19 | 52.50% |
| Real Costa vs Lidia | 20–18 | 52.63% |
| Real Costa vs Feng | 14–21 | 40.00% |
| Real Costa vs Leo | 18–16 | 52.94% |
| Real Costa vs Clive | 18–14 | 56.25% |
| Real Costa vs Fahkumram | 12–16 | 42.86% |
| Real Costa vs Shaheen | 13–14 | 48.15% |
| Real Costa vs Raven | 7–16 | 30.43% |
| Real Costa vs Armor King | 9–14 | 39.13% |
| Real Costa vs Zafina | 10–12 | 45.45% |
| Real Costa vs Alisa | 9–12 | 42.86% |
| Real Costa vs Kuma | 6–15 | 28.57% |
| Real Costa vs Panda | 9–12 | 42.86% |
| Real Costa vs Miary Zo | 4–13 | 23.53% |
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.