| Karlsefni vs Miary Zo | 6–5 | 54.55% |
| Karlsefni vs Jin | 8–2 | 80.00% |
| Karlsefni vs Bryan | 7–3 | 70.00% |
| Karlsefni vs Steve | 4–4 | 50.00% |
| Karlsefni vs Reina | 3–4 | 42.86% |
| Karlsefni vs King | 4–2 | 66.67% |
| Karlsefni vs Kazuya | 4–2 | 66.67% |
| Karlsefni vs Armor King | 4–2 | 66.67% |
| Karlsefni vs Dragunov | 4–0 | 100.00% |
| Karlsefni vs Lee | 3–1 | 75.00% |
| Karlsefni vs Hwoarang | 2–1 | 66.67% |
| Karlsefni vs Lili | 1–2 | 33.33% |
| Karlsefni vs Lars | 1–2 | 33.33% |
| Karlsefni vs Claudio | 1–2 | 33.33% |
| Karlsefni vs Anna | 1–2 | 33.33% |
| Karlsefni vs Paul | 0–2 | 0.00% |
| Karlsefni vs Law | 2–0 | 100.00% |
| Karlsefni vs Xiaoyu | 2–0 | 100.00% |
| Karlsefni vs Devil Jin | 0–2 | 0.00% |
| Karlsefni vs Feng | 2–0 | 100.00% |
| Karlsefni vs Leo | 2–0 | 100.00% |
| Karlsefni vs Alisa | 2–0 | 100.00% |
| Karlsefni vs Nina | 1–1 | 50.00% |
| Karlsefni vs Zafina | 2–0 | 100.00% |
| Karlsefni vs Jun | 1–1 | 50.00% |
| Karlsefni vs Victor | 2–0 | 100.00% |
| Karlsefni vs Raven | 0–2 | 0.00% |
| Karlsefni vs Clive | 2–0 | 100.00% |
| Karlsefni vs Yoshimitsu | 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.