| Costazzz vs Kazuya | 566–573–1 | 49.69% |
| Costazzz vs Jin | 498–537 | 48.12% |
| Costazzz vs Hwoarang | 412–449 | 47.85% |
| Costazzz vs King | 350–457 | 43.37% |
| Costazzz vs Law | 333–388 | 46.19% |
| Costazzz vs Bryan | 354–365 | 49.24% |
| Costazzz vs Steve | 286–268 | 51.62% |
| Costazzz vs Heihachi | 237–273–1 | 46.47% |
| Costazzz vs Paul | 243–246 | 49.69% |
| Costazzz vs Yoshimitsu | 255–234 | 52.15% |
| Costazzz vs Reina | 250–180 | 58.14% |
| Costazzz vs Lili | 200–205 | 49.38% |
| Costazzz vs Eddy | 169–226 | 42.78% |
| Costazzz vs Devil Jin | 156–221 | 41.38% |
| Costazzz vs Dragunov | 170–192 | 46.96% |
| Costazzz vs Jun | 157–157 | 50.00% |
| Costazzz vs Lee | 124–156 | 44.29% |
| Costazzz vs Asuka | 119–160 | 42.65% |
| Costazzz vs Xiaoyu | 104–159 | 39.54% |
| Costazzz vs Lars | 127–128 | 49.80% |
| Costazzz vs Feng | 118–134–1 | 46.83% |
| Costazzz vs Nina | 123–130 | 48.62% |
| Costazzz vs Victor | 111–139 | 44.40% |
| Costazzz vs Azucena | 114–113 | 50.22% |
| Costazzz vs Alisa | 86–126 | 40.57% |
| Costazzz vs Fahkumram | 109–101 | 51.90% |
| Costazzz vs Armor King | 89–101 | 46.84% |
| Costazzz vs Jack-8 | 86–89 | 49.14% |
| Costazzz vs Clive | 53–120 | 30.64% |
| Costazzz vs Raven | 69–90 | 43.40% |
| Costazzz vs Anna | 53–96 | 35.57% |
| Costazzz vs Leroy | 56–87 | 39.16% |
| Costazzz vs Lidia | 74–67 | 52.48% |
| Costazzz vs Claudio | 59–66 | 47.20% |
| Costazzz vs Leo | 56–53 | 51.38% |
| Costazzz vs Kuma | 34–62 | 35.42% |
| Costazzz vs Zafina | 51–32 | 61.45% |
| Costazzz vs Shaheen | 34–38 | 47.22% |
| Costazzz vs Miary Zo | 31–32 | 49.21% |
| Costazzz vs Panda | 14–36 | 28.00% |
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.