| Koi Callisto vs King | 7–7 | 50.00% |
| Koi Callisto vs Steve | 7–7 | 50.00% |
| Koi Callisto vs Jin | 3–10 | 23.08% |
| Koi Callisto vs Reina | 9–3 | 75.00% |
| Koi Callisto vs Dragunov | 4–6 | 40.00% |
| Koi Callisto vs Yoshimitsu | 4–5 | 44.44% |
| Koi Callisto vs Feng | 3–6 | 33.33% |
| Koi Callisto vs Paul | 5–3 | 62.50% |
| Koi Callisto vs Bryan | 7–0 | 100.00% |
| Koi Callisto vs Asuka | 3–4 | 42.86% |
| Koi Callisto vs Nina | 2–5 | 28.57% |
| Koi Callisto vs Kazuya | 3–3 | 50.00% |
| Koi Callisto vs Lili | 1–5 | 16.67% |
| Koi Callisto vs Jun | 4–2 | 66.67% |
| Koi Callisto vs Lee | 3–2 | 60.00% |
| Koi Callisto vs Kuma | 2–3 | 40.00% |
| Koi Callisto vs Azucena | 2–3 | 40.00% |
| Koi Callisto vs Victor | 0–5 | 0.00% |
| Koi Callisto vs Eddy | 2–3 | 40.00% |
| Koi Callisto vs Hwoarang | 2–2 | 50.00% |
| Koi Callisto vs Xiaoyu | 1–3 | 25.00% |
| Koi Callisto vs Lars | 1–3 | 25.00% |
| Koi Callisto vs Alisa | 1–3 | 25.00% |
| Koi Callisto vs Zafina | 2–2 | 50.00% |
| Koi Callisto vs Law | 3–0 | 100.00% |
| Koi Callisto vs Leroy | 2–1 | 66.67% |
| Koi Callisto vs Lidia | 3–0 | 100.00% |
| Koi Callisto vs Devil Jin | 2–0 | 100.00% |
| Koi Callisto vs Raven | 0–2 | 0.00% |
| Koi Callisto vs Jack-8 | 1–0 | 100.00% |
| Koi Callisto vs Leo | 0–1 | 0.00% |
| Koi Callisto vs Claudio | 0–1 | 0.00% |
| Koi Callisto vs Shaheen | 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.