| Cthulhuu vs Kazuya | 32–20 | 61.54% |
| Cthulhuu vs Heihachi | 21–26 | 44.68% |
| Cthulhuu vs Reina | 21–24 | 46.67% |
| Cthulhuu vs Law | 25–7 | 78.12% |
| Cthulhuu vs Jin | 13–16 | 44.83% |
| Cthulhuu vs King | 17–11 | 60.71% |
| Cthulhuu vs Bryan | 14–14 | 50.00% |
| Cthulhuu vs Jun | 10–12 | 45.45% |
| Cthulhuu vs Steve | 10–11 | 47.62% |
| Cthulhuu vs Yoshimitsu | 8–12 | 40.00% |
| Cthulhuu vs Lili | 5–15 | 25.00% |
| Cthulhuu vs Hwoarang | 10–8 | 55.56% |
| Cthulhuu vs Devil Jin | 11–6 | 64.71% |
| Cthulhuu vs Feng | 9–7 | 56.25% |
| Cthulhuu vs Azucena | 8–8 | 50.00% |
| Cthulhuu vs Paul | 12–1 | 92.31% |
| Cthulhuu vs Asuka | 8–5 | 61.54% |
| Cthulhuu vs Dragunov | 2–11 | 15.38% |
| Cthulhuu vs Jack-8 | 4–8 | 33.33% |
| Cthulhuu vs Lars | 6–6 | 50.00% |
| Cthulhuu vs Alisa | 6–6 | 50.00% |
| Cthulhuu vs Armor King | 3–9 | 25.00% |
| Cthulhuu vs Xiaoyu | 8–3 | 72.73% |
| Cthulhuu vs Lidia | 6–4 | 60.00% |
| Cthulhuu vs Clive | 7–2 | 77.78% |
| Cthulhuu vs Lee | 7–1 | 87.50% |
| Cthulhuu vs Kuma | 3–5 | 37.50% |
| Cthulhuu vs Raven | 5–3 | 62.50% |
| Cthulhuu vs Leroy | 3–4 | 42.86% |
| Cthulhuu vs Anna | 3–4 | 42.86% |
| Cthulhuu vs Leo | 4–2 | 66.67% |
| Cthulhuu vs Nina | 3–3 | 50.00% |
| Cthulhuu vs Eddy | 4–2 | 66.67% |
| Cthulhuu vs Claudio | 2–3 | 40.00% |
| Cthulhuu vs Fahkumram | 3–2 | 60.00% |
| Cthulhuu vs Panda | 0–4 | 0.00% |
| Cthulhuu vs Victor | 1–2 | 33.33% |
| Cthulhuu vs Zafina | 2–0 | 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.