| K3R1M_K21 vs Hwoarang | 8–3 | 72.73% |
| K3R1M_K21 vs Reina | 6–4 | 60.00% |
| K3R1M_K21 vs Law | 7–1 | 87.50% |
| K3R1M_K21 vs Dragunov | 6–1 | 85.71% |
| K3R1M_K21 vs Kazuya | 4–1 | 80.00% |
| K3R1M_K21 vs Leroy | 3–2 | 60.00% |
| K3R1M_K21 vs King | 4–0 | 100.00% |
| K3R1M_K21 vs Yoshimitsu | 3–1 | 75.00% |
| K3R1M_K21 vs Jin | 1–3 | 25.00% |
| K3R1M_K21 vs Steve | 4–0 | 100.00% |
| K3R1M_K21 vs Devil Jin | 4–0 | 100.00% |
| K3R1M_K21 vs Raven | 4–0 | 100.00% |
| K3R1M_K21 vs Heihachi | 4–0 | 100.00% |
| K3R1M_K21 vs Clive | 2–2 | 50.00% |
| K3R1M_K21 vs Fahkumram | 4–0 | 100.00% |
| K3R1M_K21 vs Lili | 3–0 | 100.00% |
| K3R1M_K21 vs Lee | 3–0 | 100.00% |
| K3R1M_K21 vs Jun | 3–0 | 100.00% |
| K3R1M_K21 vs Armor King | 2–1 | 66.67% |
| K3R1M_K21 vs Leo | 2–0 | 100.00% |
| K3R1M_K21 vs Lars | 2–0 | 100.00% |
| K3R1M_K21 vs Nina | 0–2 | 0.00% |
| K3R1M_K21 vs Lidia | 2–0 | 100.00% |
| K3R1M_K21 vs Anna | 2–0 | 100.00% |
| K3R1M_K21 vs Miary Zo | 1–1 | 50.00% |
| K3R1M_K21 vs Bryan | 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.