| Izaya vs Kazuya | 18–9 | 66.67% |
| Izaya vs Jin | 14–3 | 82.35% |
| Izaya vs Law | 13–3 | 81.25% |
| Izaya vs Yoshimitsu | 14–2 | 87.50% |
| Izaya vs Reina | 12–4 | 75.00% |
| Izaya vs Clive | 13–3 | 81.25% |
| Izaya vs King | 11–4 | 73.33% |
| Izaya vs Eddy | 6–8 | 42.86% |
| Izaya vs Steve | 7–6 | 53.85% |
| Izaya vs Asuka | 8–5 | 61.54% |
| Izaya vs Lee | 8–5 | 61.54% |
| Izaya vs Azucena | 11–0 | 100.00% |
| Izaya vs Hwoarang | 5–5 | 50.00% |
| Izaya vs Jun | 8–1 | 88.89% |
| Izaya vs Lidia | 6–3 | 66.67% |
| Izaya vs Dragunov | 4–4 | 50.00% |
| Izaya vs Leo | 2–6 | 25.00% |
| Izaya vs Bryan | 5–2 | 71.43% |
| Izaya vs Jack-8 | 6–1 | 85.71% |
| Izaya vs Victor | 5–2 | 71.43% |
| Izaya vs Devil Jin | 3–3 | 50.00% |
| Izaya vs Lars | 4–1 | 80.00% |
| Izaya vs Nina | 2–3 | 40.00% |
| Izaya vs Xiaoyu | 3–0 | 100.00% |
| Izaya vs Lili | 2–1 | 66.67% |
| Izaya vs Raven | 1–2 | 33.33% |
| Izaya vs Paul | 0–2 | 0.00% |
| Izaya vs Feng | 2–0 | 100.00% |
| Izaya vs Claudio | 2–0 | 100.00% |
| Izaya vs Panda | 2–0 | 100.00% |
| Izaya vs Heihachi | 0–2 | 0.00% |
| Izaya 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.