| George Costanza vs Bryan | 36–50 | 41.86% |
| George Costanza vs Steve | 48–33 | 59.26% |
| George Costanza vs Kazuya | 22–43 | 33.85% |
| George Costanza vs King | 26–36 | 41.94% |
| George Costanza vs Jin | 14–26 | 35.00% |
| George Costanza vs Reina | 16–23 | 41.03% |
| George Costanza vs Dragunov | 12–26 | 31.58% |
| George Costanza vs Lili | 20–13 | 60.61% |
| George Costanza vs Hwoarang | 11–19 | 36.67% |
| George Costanza vs Paul | 11–15 | 42.31% |
| George Costanza vs Law | 10–16 | 38.46% |
| George Costanza vs Clive | 12–13 | 48.00% |
| George Costanza vs Lars | 8–12 | 40.00% |
| George Costanza vs Jun | 9–10 | 47.37% |
| George Costanza vs Yoshimitsu | 14–4 | 77.78% |
| George Costanza vs Azucena | 9–8 | 52.94% |
| George Costanza vs Raven | 4–11 | 26.67% |
| George Costanza vs Eddy | 5–10 | 33.33% |
| George Costanza vs Asuka | 4–10 | 28.57% |
| George Costanza vs Nina | 7–7 | 50.00% |
| George Costanza vs Devil Jin | 7–5 | 58.33% |
| George Costanza vs Victor | 8–4 | 66.67% |
| George Costanza vs Heihachi | 8–4 | 66.67% |
| George Costanza vs Jack-8 | 2–6 | 25.00% |
| George Costanza vs Armor King | 4–4 | 50.00% |
| George Costanza vs Leo | 1–6 | 14.29% |
| George Costanza vs Xiaoyu | 0–6 | 0.00% |
| George Costanza vs Anna | 5–1 | 83.33% |
| George Costanza vs Feng | 2–2 | 50.00% |
| George Costanza vs Lee | 1–3 | 25.00% |
| George Costanza vs Fahkumram | 1–3 | 25.00% |
| George Costanza vs Alisa | 2–1 | 66.67% |
| George Costanza vs Claudio | 2–1 | 66.67% |
| George Costanza vs Miary Zo | 1–2 | 33.33% |
| George Costanza vs Panda | 0–2 | 0.00% |
| George Costanza vs Zafina | 2–0 | 100.00% |
| George Costanza vs Leroy | 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.