| Zarathustra vs Reina | 44–43 | 50.57% |
| Zarathustra vs King | 29–40 | 42.03% |
| Zarathustra vs Jin | 23–36 | 38.98% |
| Zarathustra vs Steve | 19–32 | 37.25% |
| Zarathustra vs Law | 23–26 | 46.94% |
| Zarathustra vs Yoshimitsu | 28–21 | 57.14% |
| Zarathustra vs Kazuya | 18–30 | 37.50% |
| Zarathustra vs Hwoarang | 13–29 | 30.95% |
| Zarathustra vs Dragunov | 24–17 | 58.54% |
| Zarathustra vs Eddy | 16–25 | 39.02% |
| Zarathustra vs Lili | 22–16 | 57.89% |
| Zarathustra vs Lee | 18–17 | 51.43% |
| Zarathustra vs Bryan | 14–15 | 48.28% |
| Zarathustra vs Paul | 16–11 | 59.26% |
| Zarathustra vs Asuka | 11–15 | 42.31% |
| Zarathustra vs Alisa | 12–14 | 46.15% |
| Zarathustra vs Azucena | 14–12 | 53.85% |
| Zarathustra vs Victor | 8–15 | 34.78% |
| Zarathustra vs Kuma | 10–11 | 47.62% |
| Zarathustra vs Leroy | 14–7 | 66.67% |
| Zarathustra vs Jun | 9–12 | 42.86% |
| Zarathustra vs Leo | 12–8 | 60.00% |
| Zarathustra vs Xiaoyu | 6–13 | 31.58% |
| Zarathustra vs Lars | 10–8 | 55.56% |
| Zarathustra vs Shaheen | 10–7 | 58.82% |
| Zarathustra vs Nina | 8–6 | 57.14% |
| Zarathustra vs Devil Jin | 7–6 | 53.85% |
| Zarathustra vs Claudio | 8–4 | 66.67% |
| Zarathustra vs Jack-8 | 9–2 | 81.82% |
| Zarathustra vs Feng | 5–6 | 45.45% |
| Zarathustra vs Zafina | 4–4 | 50.00% |
| Zarathustra vs Raven | 4–4 | 50.00% |
| Zarathustra vs Panda | 1–2 | 33.33% |
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.