| Rostom vs King | 34–28 | 54.84% |
| Rostom vs Jin | 37–20 | 64.91% |
| Rostom vs Armor King | 31–26 | 54.39% |
| Rostom vs Hwoarang | 15–33 | 31.25% |
| Rostom vs Dragunov | 21–25 | 45.65% |
| Rostom vs Law | 21–18 | 53.85% |
| Rostom vs Bryan | 17–20 | 45.95% |
| Rostom vs Kazuya | 19–17 | 52.78% |
| Rostom vs Lili | 17–17 | 50.00% |
| Rostom vs Paul | 9–23 | 28.12% |
| Rostom vs Steve | 18–13 | 58.06% |
| Rostom vs Heihachi | 17–13 | 56.67% |
| Rostom vs Eddy | 8–16 | 33.33% |
| Rostom vs Fahkumram | 11–11 | 50.00% |
| Rostom vs Miary Zo | 11–9 | 55.00% |
| Rostom vs Asuka | 11–8 | 57.89% |
| Rostom vs Feng | 4–14 | 22.22% |
| Rostom vs Alisa | 5–13 | 27.78% |
| Rostom vs Nina | 10–8 | 55.56% |
| Rostom vs Devil Jin | 9–8 | 52.94% |
| Rostom vs Jun | 8–9 | 47.06% |
| Rostom vs Reina | 11–5 | 68.75% |
| Rostom vs Anna | 8–8 | 50.00% |
| Rostom vs Leroy | 10–5 | 66.67% |
| Rostom vs Victor | 10–5 | 66.67% |
| Rostom vs Yoshimitsu | 8–5 | 61.54% |
| Rostom vs Clive | 9–4 | 69.23% |
| Rostom vs Claudio | 6–6 | 50.00% |
| Rostom vs Xiaoyu | 8–3 | 72.73% |
| Rostom vs Lars | 9–2 | 81.82% |
| Rostom vs Lee | 5–6 | 45.45% |
| Rostom vs Azucena | 5–6 | 45.45% |
| Rostom vs Leo | 5–5 | 50.00% |
| Rostom vs Lidia | 7–3 | 70.00% |
| Rostom vs Kuma | 3–3 | 50.00% |
| Rostom vs Jack-8 | 3–2 | 60.00% |
| Rostom vs Panda | 1–3 | 25.00% |
| Rostom vs Shaheen | 2–1 | 66.67% |
| Rostom vs Raven | 0–2 | 0.00% |
| Rostom vs Zafina | 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.