| Riley 99 vs Lidia | 8–9 | 47.06% |
| Riley 99 vs King | 1–11 | 8.33% |
| Riley 99 vs Reina | 3–7 | 30.00% |
| Riley 99 vs Law | 4–5 | 44.44% |
| Riley 99 vs Azucena | 2–7 | 22.22% |
| Riley 99 vs Steve | 4–3 | 57.14% |
| Riley 99 vs Asuka | 2–5 | 28.57% |
| Riley 99 vs Lars | 1–6 | 14.29% |
| Riley 99 vs Jun | 2–5 | 28.57% |
| Riley 99 vs Jin | 1–6 | 14.29% |
| Riley 99 vs Alisa | 0–6 | 0.00% |
| Riley 99 vs Dragunov | 1–5 | 16.67% |
| Riley 99 vs Yoshimitsu | 0–5 | 0.00% |
| Riley 99 vs Claudio | 3–2 | 60.00% |
| Riley 99 vs Nina | 0–5 | 0.00% |
| Riley 99 vs Lee | 2–3 | 40.00% |
| Riley 99 vs Paul | 2–3 | 40.00% |
| Riley 99 vs Kazuya | 1–4 | 20.00% |
| Riley 99 vs Hwoarang | 0–4 | 0.00% |
| Riley 99 vs Xiaoyu | 2–2 | 50.00% |
| Riley 99 vs Jack-8 | 1–3 | 25.00% |
| Riley 99 vs Lili | 4–0 | 100.00% |
| Riley 99 vs Victor | 2–1 | 66.67% |
| Riley 99 vs Bryan | 2–1 | 66.67% |
| Riley 99 vs Devil Jin | 1–2 | 33.33% |
| Riley 99 vs Kuma | 0–3 | 0.00% |
| Riley 99 vs Panda | 2–0 | 100.00% |
| Riley 99 vs Eddy | 0–2 | 0.00% |
| Riley 99 vs Leo | 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.