| OG Buttercup vs King | 87–163 | 34.80% |
| OG Buttercup vs Steve | 82–106 | 43.62% |
| OG Buttercup vs Hwoarang | 58–111 | 34.32% |
| OG Buttercup vs Kazuya | 56–112 | 33.33% |
| OG Buttercup vs Law | 54–104 | 34.18% |
| OG Buttercup vs Jin | 64–92 | 41.03% |
| OG Buttercup vs Lidia | 47–89 | 34.56% |
| OG Buttercup vs Bryan | 46–89 | 34.07% |
| OG Buttercup vs Reina | 43–84 | 33.86% |
| OG Buttercup vs Eddy | 31–90 | 25.62% |
| OG Buttercup vs Jun | 50–65 | 43.48% |
| OG Buttercup vs Lili | 39–75 | 34.21% |
| OG Buttercup vs Azucena | 30–78 | 27.78% |
| OG Buttercup vs Fahkumram | 26–64–1 | 28.89% |
| OG Buttercup vs Dragunov | 22–65 | 25.29% |
| OG Buttercup vs Lars | 21–61 | 25.61% |
| OG Buttercup vs Heihachi | 34–45 | 43.04% |
| OG Buttercup vs Yoshimitsu | 31–46 | 40.26% |
| OG Buttercup vs Lee | 25–52 | 32.47% |
| OG Buttercup vs Leo | 20–56 | 26.32% |
| OG Buttercup vs Victor | 23–52 | 30.67% |
| OG Buttercup vs Paul | 23–51 | 31.08% |
| OG Buttercup vs Leroy | 28–35 | 44.44% |
| OG Buttercup vs Asuka | 21–38 | 35.59% |
| OG Buttercup vs Xiaoyu | 16–41 | 28.07% |
| OG Buttercup vs Armor King | 18–35 | 33.96% |
| OG Buttercup vs Anna | 18–34 | 34.62% |
| OG Buttercup vs Alisa | 22–25 | 46.81% |
| OG Buttercup vs Nina | 18–28 | 39.13% |
| OG Buttercup vs Claudio | 13–28 | 31.71% |
| OG Buttercup vs Raven | 19–21 | 47.50% |
| OG Buttercup vs Clive | 15–25 | 37.50% |
| OG Buttercup vs Devil Jin | 19–19 | 50.00% |
| OG Buttercup vs Feng | 9–25 | 26.47% |
| OG Buttercup vs Jack-8 | 9–22 | 29.03% |
| OG Buttercup vs Zafina | 8–23 | 25.81% |
| OG Buttercup vs Shaheen | 10–15 | 40.00% |
| OG Buttercup vs Miary Zo | 6–15 | 28.57% |
| OG Buttercup vs Kuma | 6–9 | 40.00% |
| OG Buttercup vs Panda | 1–4 | 20.00% |
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.