| Greg heffley vs Eddy | 19–22 | 46.34% |
| Greg heffley vs Jun | 18–7 | 72.00% |
| Greg heffley vs Hwoarang | 14–8 | 63.64% |
| Greg heffley vs Heihachi | 12–10 | 54.55% |
| Greg heffley vs King | 7–12 | 36.84% |
| Greg heffley vs Steve | 12–7 | 63.16% |
| Greg heffley vs Reina | 10–8 | 55.56% |
| Greg heffley vs Jin | 11–5 | 68.75% |
| Greg heffley vs Kazuya | 7–9 | 43.75% |
| Greg heffley vs Law | 8–5 | 61.54% |
| Greg heffley vs Paul | 9–3 | 75.00% |
| Greg heffley vs Bryan | 4–8 | 33.33% |
| Greg heffley vs Lili | 5–4 | 55.56% |
| Greg heffley vs Dragunov | 7–2 | 77.78% |
| Greg heffley vs Fahkumram | 5–4 | 55.56% |
| Greg heffley vs Asuka | 2–6 | 25.00% |
| Greg heffley vs Lee | 2–6 | 25.00% |
| Greg heffley vs Clive | 6–2 | 75.00% |
| Greg heffley vs Xiaoyu | 3–3 | 50.00% |
| Greg heffley vs Victor | 2–4 | 33.33% |
| Greg heffley vs Armor King | 4–2 | 66.67% |
| Greg heffley vs Yoshimitsu | 3–2 | 60.00% |
| Greg heffley vs Jack-8 | 2–3 | 40.00% |
| Greg heffley vs Azucena | 3–2 | 60.00% |
| Greg heffley vs Lidia | 3–2 | 60.00% |
| Greg heffley vs Zafina | 2–2 | 50.00% |
| Greg heffley vs Leo | 1–2 | 33.33% |
| Greg heffley vs Alisa | 2–1 | 66.67% |
| Greg heffley vs Nina | 0–3 | 0.00% |
| Greg heffley vs Panda | 1–2 | 33.33% |
| Greg heffley vs Leroy | 3–0 | 100.00% |
| Greg heffley vs Devil Jin | 2–0 | 100.00% |
| Greg heffley vs Claudio | 2–0 | 100.00% |
| Greg heffley vs Kuma | 0–2 | 0.00% |
| Greg heffley vs Feng | 0–1 | 0.00% |
| Greg heffley vs Raven | 0–1 | 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.