| Pen Pen vs Bryan | 9–4 | 69.23% |
| Pen Pen vs King | 8–4 | 66.67% |
| Pen Pen vs Jin | 11–0 | 100.00% |
| Pen Pen vs Hwoarang | 7–2 | 77.78% |
| Pen Pen vs Lili | 6–1 | 85.71% |
| Pen Pen vs Armor King | 6–1 | 85.71% |
| Pen Pen vs Kazuya | 6–0 | 100.00% |
| Pen Pen vs Alisa | 1–4 | 20.00% |
| Pen Pen vs Heihachi | 1–4 | 20.00% |
| Pen Pen vs Xiaoyu | 2–2 | 50.00% |
| Pen Pen vs Reina | 2–2 | 50.00% |
| Pen Pen vs Fahkumram | 3–1 | 75.00% |
| Pen Pen vs Paul | 2–1 | 66.67% |
| Pen Pen vs Dragunov | 2–1 | 66.67% |
| Pen Pen vs Lee | 1–2 | 33.33% |
| Pen Pen vs Zafina | 2–1 | 66.67% |
| Pen Pen vs Miary Zo | 2–1 | 66.67% |
| Pen Pen vs Law | 2–0 | 100.00% |
| Pen Pen vs Yoshimitsu | 2–0 | 100.00% |
| Pen Pen vs Steve | 2–0 | 100.00% |
| Pen Pen vs Jack-8 | 2–0 | 100.00% |
| Pen Pen vs Nina | 2–0 | 100.00% |
| Pen Pen vs Victor | 2–0 | 100.00% |
| Pen Pen vs Eddy | 1–1 | 50.00% |
| Pen Pen vs Lidia | 2–0 | 100.00% |
| Pen Pen vs Anna | 2–0 | 100.00% |
| Pen Pen vs Devil Jin | 0–1 | 0.00% |
| Pen Pen vs Lars | 1–0 | 100.00% |
| Pen Pen vs Jun | 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.