| Koby vs Eddy | 16–17 | 48.48% |
| Koby vs King | 10–21 | 32.26% |
| Koby vs Hwoarang | 12–16 | 42.86% |
| Koby vs Jin | 13–14 | 48.15% |
| Koby vs Azucena | 12–11 | 52.17% |
| Koby vs Reina | 11–9 | 55.00% |
| Koby vs Paul | 11–6 | 64.71% |
| Koby vs Xiaoyu | 10–6 | 62.50% |
| Koby vs Victor | 4–11 | 26.67% |
| Koby vs Yoshimitsu | 7–7 | 50.00% |
| Koby vs Dragunov | 3–10 | 23.08% |
| Koby vs Law | 3–9 | 25.00% |
| Koby vs Kazuya | 6–6 | 50.00% |
| Koby vs Steve | 8–2 | 80.00% |
| Koby vs Nina | 5–4 | 55.56% |
| Koby vs Alisa | 6–2 | 75.00% |
| Koby vs Bryan | 2–5 | 28.57% |
| Koby vs Raven | 2–5 | 28.57% |
| Koby vs Asuka | 4–2 | 66.67% |
| Koby vs Feng | 1–3 | 25.00% |
| Koby vs Lili | 3–1 | 75.00% |
| Koby vs Lee | 3–1 | 75.00% |
| Koby vs Leroy | 3–1 | 75.00% |
| Koby vs Jun | 0–4 | 0.00% |
| Koby vs Leo | 2–1 | 66.67% |
| Koby vs Lars | 1–2 | 33.33% |
| Koby vs Devil Jin | 1–1 | 50.00% |
| Koby vs Jack-8 | 0–1 | 0.00% |
| Koby vs Kuma | 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.