| STEGOsaurus vs Kazuya | 26–39 | 40.00% |
| STEGOsaurus vs King | 13–23 | 36.11% |
| STEGOsaurus vs Heihachi | 13–18 | 41.94% |
| STEGOsaurus vs Law | 15–14 | 51.72% |
| STEGOsaurus vs Bryan | 11–18 | 37.93% |
| STEGOsaurus vs Jin | 16–12 | 57.14% |
| STEGOsaurus vs Dragunov | 13–11 | 54.17% |
| STEGOsaurus vs Jun | 12–11 | 52.17% |
| STEGOsaurus vs Reina | 12–10 | 54.55% |
| STEGOsaurus vs Armor King | 11–11 | 50.00% |
| STEGOsaurus vs Yoshimitsu | 6–14 | 30.00% |
| STEGOsaurus vs Eddy | 8–10 | 44.44% |
| STEGOsaurus vs Paul | 8–8 | 50.00% |
| STEGOsaurus vs Clive | 9–7 | 56.25% |
| STEGOsaurus vs Hwoarang | 6–8 | 42.86% |
| STEGOsaurus vs Steve | 6–7 | 46.15% |
| STEGOsaurus vs Xiaoyu | 7–5 | 58.33% |
| STEGOsaurus vs Lars | 4–8 | 33.33% |
| STEGOsaurus vs Miary Zo | 7–5 | 58.33% |
| STEGOsaurus vs Asuka | 4–6 | 40.00% |
| STEGOsaurus vs Alisa | 7–2 | 77.78% |
| STEGOsaurus vs Devil Jin | 2–6 | 25.00% |
| STEGOsaurus vs Feng | 3–5 | 37.50% |
| STEGOsaurus vs Lili | 4–4 | 50.00% |
| STEGOsaurus vs Lee | 3–5 | 37.50% |
| STEGOsaurus vs Victor | 5–2 | 71.43% |
| STEGOsaurus vs Claudio | 3–2 | 60.00% |
| STEGOsaurus vs Panda | 4–1 | 80.00% |
| STEGOsaurus vs Azucena | 4–1 | 80.00% |
| STEGOsaurus vs Fahkumram | 3–2 | 60.00% |
| STEGOsaurus vs Shaheen | 2–2 | 50.00% |
| STEGOsaurus vs Leo | 1–2 | 33.33% |
| STEGOsaurus vs Nina | 2–1 | 66.67% |
| STEGOsaurus vs Lidia | 1–2 | 33.33% |
| STEGOsaurus vs Anna | 1–2 | 33.33% |
| STEGOsaurus vs Zafina | 2–0 | 100.00% |
| STEGOsaurus vs Leroy | 0–2 | 0.00% |
| STEGOsaurus vs Kuma | 1–0 | 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.