| Gronolo vs Kazuya | 32–29 | 52.46% |
| Gronolo vs King | 31–26 | 54.39% |
| Gronolo vs Hwoarang | 32–24 | 57.14% |
| Gronolo vs Reina | 21–27 | 43.75% |
| Gronolo vs Clive | 16–26 | 38.10% |
| Gronolo vs Eddy | 8–32 | 20.00% |
| Gronolo vs Jin | 16–18 | 47.06% |
| Gronolo vs Bryan | 13–20 | 39.39% |
| Gronolo vs Steve | 19–13 | 59.38% |
| Gronolo vs Azucena | 13–14 | 48.15% |
| Gronolo vs Dragunov | 13–12 | 52.00% |
| Gronolo vs Leo | 12–13 | 48.00% |
| Gronolo vs Jun | 14–11 | 56.00% |
| Gronolo vs Paul | 11–12 | 47.83% |
| Gronolo vs Yoshimitsu | 12–10 | 54.55% |
| Gronolo vs Nina | 9–13 | 40.91% |
| Gronolo vs Victor | 12–8 | 60.00% |
| Gronolo vs Asuka | 5–13 | 27.78% |
| Gronolo vs Devil Jin | 8–9 | 47.06% |
| Gronolo vs Lee | 8–9 | 47.06% |
| Gronolo vs Heihachi | 6–10 | 37.50% |
| Gronolo vs Law | 8–5 | 61.54% |
| Gronolo vs Feng | 8–5 | 61.54% |
| Gronolo vs Lili | 7–6 | 53.85% |
| Gronolo vs Raven | 9–3 | 75.00% |
| Gronolo vs Alisa | 3–8 | 27.27% |
| Gronolo vs Xiaoyu | 8–2 | 80.00% |
| Gronolo vs Lars | 6–3 | 66.67% |
| Gronolo vs Jack-8 | 1–7 | 12.50% |
| Gronolo vs Lidia | 2–6 | 25.00% |
| Gronolo vs Leroy | 3–4 | 42.86% |
| Gronolo vs Kuma | 2–4 | 33.33% |
| Gronolo vs Claudio | 4–0 | 100.00% |
| Gronolo vs Zafina | 2–2 | 50.00% |
| Gronolo vs Shaheen | 1–2 | 33.33% |
| Gronolo vs Panda | 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.