| Registeel vs King | 7–12 | 36.84% |
| Registeel vs Jun | 9–10 | 47.37% |
| Registeel vs Lili | 8–9 | 47.06% |
| Registeel vs Steve | 7–7 | 50.00% |
| Registeel vs Hwoarang | 5–8 | 38.46% |
| Registeel vs Jin | 10–3 | 76.92% |
| Registeel vs Paul | 5–7 | 41.67% |
| Registeel vs Bryan | 4–8 | 33.33% |
| Registeel vs Eddy | 4–7 | 36.36% |
| Registeel vs Law | 8–2 | 80.00% |
| Registeel vs Nina | 4–6 | 40.00% |
| Registeel vs Heihachi | 8–2 | 80.00% |
| Registeel vs Fahkumram | 4–6 | 40.00% |
| Registeel vs Dragunov | 4–5 | 44.44% |
| Registeel vs Lee | 4–5 | 44.44% |
| Registeel vs Reina | 7–2 | 77.78% |
| Registeel vs Alisa | 4–4 | 50.00% |
| Registeel vs Clive | 2–6 | 25.00% |
| Registeel vs Yoshimitsu | 6–1 | 85.71% |
| Registeel vs Kazuya | 2–4 | 33.33% |
| Registeel vs Leo | 4–2 | 66.67% |
| Registeel vs Leroy | 2–4 | 33.33% |
| Registeel vs Azucena | 2–4 | 33.33% |
| Registeel vs Victor | 0–5 | 0.00% |
| Registeel vs Lars | 1–3 | 25.00% |
| Registeel vs Zafina | 1–3 | 25.00% |
| Registeel vs Asuka | 1–2 | 33.33% |
| Registeel vs Lidia | 3–0 | 100.00% |
| Registeel vs Jack-8 | 2–0 | 100.00% |
| Registeel vs Claudio | 0–2 | 0.00% |
| Registeel vs Raven | 0–2 | 0.00% |
| Registeel vs Armor King | 1–1 | 50.00% |
| Registeel vs Miary Zo | 1–1 | 50.00% |
| Registeel vs Devil Jin | 0–1 | 0.00% |
| Registeel vs Shaheen | 0–1 | 0.00% |
| Registeel vs Kuma | 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.