| Riku vs Kazuya | 6–47 | 11.32% |
| Riku vs Lili | 16–36 | 30.77% |
| Riku vs Steve | 9–35 | 20.45% |
| Riku vs Reina | 8–36 | 18.18% |
| Riku vs Fahkumram | 4–36 | 10.00% |
| Riku vs Hwoarang | 3–35 | 7.89% |
| Riku vs King | 3–31 | 8.82% |
| Riku vs Jin | 3–24 | 11.11% |
| Riku vs Dragunov | 0–26 | 0.00% |
| Riku vs Heihachi | 8–18 | 30.77% |
| Riku vs Asuka | 4–21 | 16.00% |
| Riku vs Paul | 6–17 | 26.09% |
| Riku vs Law | 5–18 | 21.74% |
| Riku vs Jun | 4–19 | 17.39% |
| Riku vs Leroy | 14–8 | 63.64% |
| Riku vs Devil Jin | 2–19 | 9.52% |
| Riku vs Yoshimitsu | 3–17 | 15.00% |
| Riku vs Victor | 1–19 | 5.00% |
| Riku vs Alisa | 2–16 | 11.11% |
| Riku vs Azucena | 1–17 | 5.56% |
| Riku vs Xiaoyu | 4–13 | 23.53% |
| Riku vs Bryan | 4–12 | 25.00% |
| Riku vs Lidia | 1–15 | 6.25% |
| Riku vs Lars | 1–13 | 7.14% |
| Riku vs Anna | 2–12 | 14.29% |
| Riku vs Claudio | 1–10 | 9.09% |
| Riku vs Eddy | 4–7 | 36.36% |
| Riku vs Feng | 2–8 | 20.00% |
| Riku vs Shaheen | 1–9 | 10.00% |
| Riku vs Raven | 3–7 | 30.00% |
| Riku vs Kuma | 2–7 | 22.22% |
| Riku vs Armor King | 1–8 | 11.11% |
| Riku vs Zafina | 5–3 | 62.50% |
| Riku vs Clive | 1–7 | 12.50% |
| Riku vs Leo | 0–7 | 0.00% |
| Riku vs Nina | 0–7 | 0.00% |
| Riku vs Lee | 0–7 | 0.00% |
| Riku vs Panda | 0–5 | 0.00% |
| Riku vs Jack-8 | 0–4 | 0.00% |
| Riku vs Miary Zo | 0–3 | 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.