| Chief Rocka vs Kazuya | 38–7 | 84.44% |
| Chief Rocka vs King | 28–14 | 66.67% |
| Chief Rocka vs Jin | 28–12 | 70.00% |
| Chief Rocka vs Steve | 24–6 | 80.00% |
| Chief Rocka vs Reina | 27–2 | 93.10% |
| Chief Rocka vs Bryan | 22–5 | 81.48% |
| Chief Rocka vs Heihachi | 21–5 | 80.77% |
| Chief Rocka vs Clive | 21–5 | 80.77% |
| Chief Rocka vs Leo | 19–4 | 82.61% |
| Chief Rocka vs Lidia | 21–2 | 91.30% |
| Chief Rocka vs Devil Jin | 20–2 | 90.91% |
| Chief Rocka vs Law | 15–6 | 71.43% |
| Chief Rocka vs Dragunov | 19–2 | 90.48% |
| Chief Rocka vs Lili | 14–4 | 77.78% |
| Chief Rocka vs Jun | 15–3 | 83.33% |
| Chief Rocka vs Armor King | 14–4 | 77.78% |
| Chief Rocka vs Miary Zo | 8–9 | 47.06% |
| Chief Rocka vs Azucena | 8–8 | 50.00% |
| Chief Rocka vs Victor | 10–6 | 62.50% |
| Chief Rocka vs Asuka | 11–4 | 73.33% |
| Chief Rocka vs Yoshimitsu | 9–5 | 64.29% |
| Chief Rocka vs Feng | 12–2 | 85.71% |
| Chief Rocka vs Hwoarang | 10–2 | 83.33% |
| Chief Rocka vs Leroy | 8–4 | 66.67% |
| Chief Rocka vs Lee | 9–2 | 81.82% |
| Chief Rocka vs Paul | 9–1 | 90.00% |
| Chief Rocka vs Jack-8 | 7–2 | 77.78% |
| Chief Rocka vs Lars | 7–2 | 77.78% |
| Chief Rocka vs Nina | 8–1 | 88.89% |
| Chief Rocka vs Eddy | 5–2 | 71.43% |
| Chief Rocka vs Xiaoyu | 5–1 | 83.33% |
| Chief Rocka vs Claudio | 4–2 | 66.67% |
| Chief Rocka vs Raven | 4–2 | 66.67% |
| Chief Rocka vs Shaheen | 4–0 | 100.00% |
| Chief Rocka vs Fahkumram | 3–1 | 75.00% |
| Chief Rocka vs Kuma | 2–1 | 66.67% |
| Chief Rocka vs Anna | 2–1 | 66.67% |
| Chief Rocka vs Alisa | 0–2 | 0.00% |
| Chief Rocka vs Zafina | 1–1 | 50.00% |
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.