| Protostar vs Kazuya | 99–73 | 57.56% |
| Protostar vs Jin | 71–80 | 47.02% |
| Protostar vs Bryan | 61–43 | 58.65% |
| Protostar vs King | 53–44 | 54.64% |
| Protostar vs Law | 56–38 | 59.57% |
| Protostar vs Reina | 51–30 | 62.96% |
| Protostar vs Paul | 27–53 | 33.75% |
| Protostar vs Lili | 39–36 | 52.00% |
| Protostar vs Hwoarang | 24–48 | 33.33% |
| Protostar vs Yoshimitsu | 35–35 | 50.00% |
| Protostar vs Eddy | 36–31 | 53.73% |
| Protostar vs Heihachi | 37–30 | 55.22% |
| Protostar vs Steve | 37–26 | 58.73% |
| Protostar vs Dragunov | 21–40 | 34.43% |
| Protostar vs Jun | 24–23 | 51.06% |
| Protostar vs Azucena | 26–20 | 56.52% |
| Protostar vs Xiaoyu | 23–20 | 53.49% |
| Protostar vs Devil Jin | 24–17 | 58.54% |
| Protostar vs Asuka | 15–25 | 37.50% |
| Protostar vs Nina | 16–24 | 40.00% |
| Protostar vs Lars | 20–19 | 51.28% |
| Protostar vs Lee | 17–18 | 48.57% |
| Protostar vs Alisa | 14–20 | 41.18% |
| Protostar vs Victor | 10–20 | 33.33% |
| Protostar vs Feng | 14–14 | 50.00% |
| Protostar vs Leroy | 10–15 | 40.00% |
| Protostar vs Raven | 10–14 | 41.67% |
| Protostar vs Leo | 11–11 | 50.00% |
| Protostar vs Fahkumram | 10–11 | 47.62% |
| Protostar vs Claudio | 9–10 | 47.37% |
| Protostar vs Armor King | 8–10 | 44.44% |
| Protostar vs Jack-8 | 10–5 | 66.67% |
| Protostar vs Kuma | 8–7 | 53.33% |
| Protostar vs Zafina | 8–7 | 53.33% |
| Protostar vs Clive | 4–10 | 28.57% |
| Protostar vs Shaheen | 7–4 | 63.64% |
| Protostar vs Lidia | 4–5 | 44.44% |
| Protostar vs Anna | 4–4 | 50.00% |
| Protostar vs Panda | 2–5 | 28.57% |
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.