| Grandpa vs Kazuya | 30–17 | 63.83% |
| Grandpa vs Bryan | 27–14 | 65.85% |
| Grandpa vs King | 24–12 | 66.67% |
| Grandpa vs Jin | 17–14 | 54.84% |
| Grandpa vs Steve | 23–6 | 79.31% |
| Grandpa vs Heihachi | 20–9 | 68.97% |
| Grandpa vs Lili | 21–7 | 75.00% |
| Grandpa vs Reina | 15–12 | 55.56% |
| Grandpa vs Yoshimitsu | 15–9 | 62.50% |
| Grandpa vs Asuka | 17–7 | 70.83% |
| Grandpa vs Paul | 14–9 | 60.87% |
| Grandpa vs Nina | 7–13 | 35.00% |
| Grandpa vs Eddy | 9–11 | 45.00% |
| Grandpa vs Feng | 11–8 | 57.89% |
| Grandpa vs Dragunov | 12–6 | 66.67% |
| Grandpa vs Victor | 11–7 | 61.11% |
| Grandpa vs Clive | 7–10 | 41.18% |
| Grandpa vs Hwoarang | 10–6 | 62.50% |
| Grandpa vs Xiaoyu | 7–8 | 46.67% |
| Grandpa vs Fahkumram | 7–8 | 46.67% |
| Grandpa vs Lee | 10–4 | 71.43% |
| Grandpa vs Azucena | 8–5 | 61.54% |
| Grandpa vs Lidia | 10–2 | 83.33% |
| Grandpa vs Leroy | 6–5 | 54.55% |
| Grandpa vs Law | 8–2 | 80.00% |
| Grandpa vs Jack-8 | 6–4 | 60.00% |
| Grandpa vs Claudio | 6–4 | 60.00% |
| Grandpa vs Kuma | 4–6 | 40.00% |
| Grandpa vs Raven | 5–5 | 50.00% |
| Grandpa vs Jun | 3–6 | 33.33% |
| Grandpa vs Alisa | 7–1 | 87.50% |
| Grandpa vs Devil Jin | 6–1 | 85.71% |
| Grandpa vs Leo | 1–6 | 14.29% |
| Grandpa vs Lars | 5–1 | 83.33% |
| Grandpa vs Zafina | 2–4 | 33.33% |
| Grandpa vs Shaheen | 3–0 | 100.00% |
| Grandpa vs Anna | 0–2 | 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.