| KEY-SINS vs King | 4–5 | 44.44% |
| KEY-SINS vs Dragunov | 4–4 | 50.00% |
| KEY-SINS vs Law | 3–4 | 42.86% |
| KEY-SINS vs Jin | 1–5 | 16.67% |
| KEY-SINS vs Lars | 1–4 | 20.00% |
| KEY-SINS vs Reina | 2–3 | 40.00% |
| KEY-SINS vs Feng | 0–4 | 0.00% |
| KEY-SINS vs Nina | 0–4 | 0.00% |
| KEY-SINS vs Fahkumram | 1–3 | 25.00% |
| KEY-SINS vs Xiaoyu | 1–2 | 33.33% |
| KEY-SINS vs Lee | 3–0 | 100.00% |
| KEY-SINS vs Jun | 1–2 | 33.33% |
| KEY-SINS vs Heihachi | 1–2 | 33.33% |
| KEY-SINS vs Yoshimitsu | 0–2 | 0.00% |
| KEY-SINS vs Hwoarang | 0–2 | 0.00% |
| KEY-SINS vs Bryan | 0–2 | 0.00% |
| KEY-SINS vs Devil Jin | 2–0 | 100.00% |
| KEY-SINS vs Lili | 0–2 | 0.00% |
| KEY-SINS vs Leo | 0–2 | 0.00% |
| KEY-SINS vs Alisa | 0–2 | 0.00% |
| KEY-SINS vs Kuma | 2–0 | 100.00% |
| KEY-SINS vs Panda | 2–0 | 100.00% |
| KEY-SINS vs Eddy | 1–1 | 50.00% |
| KEY-SINS vs Clive | 0–2 | 0.00% |
| KEY-SINS vs Kazuya | 1–0 | 100.00% |
| KEY-SINS vs Steve | 1–0 | 100.00% |
| KEY-SINS vs Jack-8 | 1–0 | 100.00% |
| KEY-SINS vs Azucena | 1–0 | 100.00% |
| KEY-SINS vs Raven | 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.