| Masontrock vs Steve | 12–8 | 60.00% |
| Masontrock vs King | 9–9 | 50.00% |
| Masontrock vs Lars | 8–4 | 66.67% |
| Masontrock vs Heihachi | 7–4 | 63.64% |
| Masontrock vs Hwoarang | 2–8 | 20.00% |
| Masontrock vs Clive | 5–5 | 50.00% |
| Masontrock vs Law | 5–4 | 55.56% |
| Masontrock vs Fahkumram | 3–6 | 33.33% |
| Masontrock vs Armor King | 4–5 | 44.44% |
| Masontrock vs Bryan | 6–2 | 75.00% |
| Masontrock vs Dragunov | 3–5 | 37.50% |
| Masontrock vs Reina | 7–1 | 87.50% |
| Masontrock vs Kazuya | 4–3 | 57.14% |
| Masontrock vs Lili | 3–4 | 42.86% |
| Masontrock vs Lidia | 5–2 | 71.43% |
| Masontrock vs Yoshimitsu | 3–3 | 50.00% |
| Masontrock vs Lee | 5–1 | 83.33% |
| Masontrock vs Jun | 4–2 | 66.67% |
| Masontrock vs Victor | 3–3 | 50.00% |
| Masontrock vs Eddy | 1–5 | 16.67% |
| Masontrock vs Jin | 4–1 | 80.00% |
| Masontrock vs Leo | 3–2 | 60.00% |
| Masontrock vs Kuma | 3–2 | 60.00% |
| Masontrock vs Azucena | 0–5 | 0.00% |
| Masontrock vs Paul | 0–4 | 0.00% |
| Masontrock vs Devil Jin | 3–1 | 75.00% |
| Masontrock vs Alisa | 0–4 | 0.00% |
| Masontrock vs Claudio | 2–2 | 50.00% |
| Masontrock vs Nina | 1–2 | 33.33% |
| Masontrock vs Raven | 2–1 | 66.67% |
| Masontrock vs Xiaoyu | 0–2 | 0.00% |
| Masontrock vs Zafina | 0–2 | 0.00% |
| Masontrock vs Anna | 1–1 | 50.00% |
| Masontrock vs Miary Zo | 1–1 | 50.00% |
| Masontrock vs Shaheen | 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.