| John Yarock vs King | 10–11 | 47.62% |
| John Yarock vs Jin | 9–10 | 47.37% |
| John Yarock vs Heihachi | 7–7 | 50.00% |
| John Yarock vs Kazuya | 7–6 | 53.85% |
| John Yarock vs Bryan | 5–7 | 41.67% |
| John Yarock vs Steve | 9–3 | 75.00% |
| John Yarock vs Eddy | 1–11 | 8.33% |
| John Yarock vs Azucena | 6–5 | 54.55% |
| John Yarock vs Paul | 7–2 | 77.78% |
| John Yarock vs Reina | 7–2 | 77.78% |
| John Yarock vs Yoshimitsu | 4–4 | 50.00% |
| John Yarock vs Lili | 2–6 | 25.00% |
| John Yarock vs Law | 3–4 | 42.86% |
| John Yarock vs Dragunov | 5–2 | 71.43% |
| John Yarock vs Lars | 3–4 | 42.86% |
| John Yarock vs Leroy | 4–3 | 57.14% |
| John Yarock vs Leo | 2–4 | 33.33% |
| John Yarock vs Anna | 3–3 | 50.00% |
| John Yarock vs Clive | 2–3 | 40.00% |
| John Yarock vs Hwoarang | 2–2 | 50.00% |
| John Yarock vs Asuka | 1–2 | 33.33% |
| John Yarock vs Feng | 3–0 | 100.00% |
| John Yarock vs Nina | 0–3 | 0.00% |
| John Yarock vs Lidia | 1–2 | 33.33% |
| John Yarock vs Jack-8 | 1–1 | 50.00% |
| John Yarock vs Devil Jin | 0–2 | 0.00% |
| John Yarock vs Alisa | 0–2 | 0.00% |
| John Yarock vs Lee | 0–2 | 0.00% |
| John Yarock vs Panda | 2–0 | 100.00% |
| John Yarock vs Jun | 1–1 | 50.00% |
| John Yarock vs Victor | 2–0 | 100.00% |
| John Yarock vs Zafina | 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.