| Codex vs Jin | 13–10 | 56.52% |
| Codex vs Steve | 14–7 | 66.67% |
| Codex vs King | 16–4 | 80.00% |
| Codex vs Hwoarang | 11–7 | 61.11% |
| Codex vs Bryan | 9–8 | 52.94% |
| Codex vs Kazuya | 11–6 | 64.71% |
| Codex vs Alisa | 10–6 | 62.50% |
| Codex vs Reina | 13–3 | 81.25% |
| Codex vs Victor | 11–5 | 68.75% |
| Codex vs Dragunov | 10–4 | 71.43% |
| Codex vs Nina | 8–4 | 66.67% |
| Codex vs Jun | 8–4 | 66.67% |
| Codex vs Law | 8–3 | 72.73% |
| Codex vs Asuka | 4–7 | 36.36% |
| Codex vs Kuma | 6–4 | 60.00% |
| Codex vs Lidia | 5–5 | 50.00% |
| Codex vs Yoshimitsu | 7–2 | 77.78% |
| Codex vs Lee | 7–2 | 77.78% |
| Codex vs Azucena | 7–2 | 77.78% |
| Codex vs Eddy | 5–4 | 55.56% |
| Codex vs Xiaoyu | 8–0 | 100.00% |
| Codex vs Devil Jin | 6–2 | 75.00% |
| Codex vs Lars | 3–4 | 42.86% |
| Codex vs Shaheen | 4–3 | 57.14% |
| Codex vs Heihachi | 3–4 | 42.86% |
| Codex vs Lili | 4–2 | 66.67% |
| Codex vs Raven | 4–2 | 66.67% |
| Codex vs Paul | 3–1 | 75.00% |
| Codex vs Feng | 1–3 | 25.00% |
| Codex vs Leo | 3–1 | 75.00% |
| Codex vs Claudio | 2–2 | 50.00% |
| Codex vs Zafina | 2–2 | 50.00% |
| Codex vs Leroy | 2–1 | 66.67% |
| Codex vs Clive | 3–0 | 100.00% |
| Codex vs Anna | 2–1 | 66.67% |
| Codex vs Jack-8 | 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.