| Rongdo vs King | 6–7 | 46.15% |
| Rongdo vs Eddy | 6–7 | 46.15% |
| Rongdo vs Paul | 7–4 | 63.64% |
| Rongdo vs Steve | 8–1 | 88.89% |
| Rongdo vs Devil Jin | 7–2 | 77.78% |
| Rongdo vs Yoshimitsu | 8–0 | 100.00% |
| Rongdo vs Kazuya | 7–1 | 87.50% |
| Rongdo vs Hwoarang | 7–0 | 100.00% |
| Rongdo vs Lili | 6–1 | 85.71% |
| Rongdo vs Jun | 6–1 | 85.71% |
| Rongdo vs Azucena | 5–2 | 71.43% |
| Rongdo vs Victor | 7–0 | 100.00% |
| Rongdo vs Lars | 5–1 | 83.33% |
| Rongdo vs Dragunov | 5–0 | 100.00% |
| Rongdo vs Law | 1–2 | 33.33% |
| Rongdo vs Jin | 3–0 | 100.00% |
| Rongdo vs Leo | 1–2 | 33.33% |
| Rongdo vs Leroy | 2–1 | 66.67% |
| Rongdo vs Raven | 3–0 | 100.00% |
| Rongdo vs Xiaoyu | 2–0 | 100.00% |
| Rongdo vs Jack-8 | 2–0 | 100.00% |
| Rongdo vs Feng | 1–1 | 50.00% |
| Rongdo vs Alisa | 2–0 | 100.00% |
| Rongdo vs Shaheen | 2–0 | 100.00% |
| Rongdo vs Lee | 1–1 | 50.00% |
| Rongdo vs Zafina | 2–0 | 100.00% |
| Rongdo vs Bryan | 1–0 | 100.00% |
| Rongdo vs Nina | 1–0 | 100.00% |
| Rongdo vs Kuma | 1–0 | 100.00% |
| Rongdo vs Panda | 1–0 | 100.00% |
| Rongdo vs Reina | 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.