| Guy Kieth vs King | 41–38 | 51.90% |
| Guy Kieth vs Reina | 35–31 | 53.03% |
| Guy Kieth vs Kazuya | 26–25 | 50.98% |
| Guy Kieth vs Bryan | 18–29 | 38.30% |
| Guy Kieth vs Jin | 16–30 | 34.78% |
| Guy Kieth vs Dragunov | 19–25 | 43.18% |
| Guy Kieth vs Steve | 20–20 | 50.00% |
| Guy Kieth vs Law | 16–20 | 44.44% |
| Guy Kieth vs Hwoarang | 9–27 | 25.00% |
| Guy Kieth vs Yoshimitsu | 10–24 | 29.41% |
| Guy Kieth vs Eddy | 8–22 | 26.67% |
| Guy Kieth vs Azucena | 12–17 | 41.38% |
| Guy Kieth vs Asuka | 8–20 | 28.57% |
| Guy Kieth vs Leo | 15–12 | 55.56% |
| Guy Kieth vs Paul | 11–14 | 44.00% |
| Guy Kieth vs Xiaoyu | 8–17 | 32.00% |
| Guy Kieth vs Alisa | 13–11 | 54.17% |
| Guy Kieth vs Feng | 10–12 | 45.45% |
| Guy Kieth vs Lars | 10–11 | 47.62% |
| Guy Kieth vs Jack-8 | 11–8 | 57.89% |
| Guy Kieth vs Jun | 7–12 | 36.84% |
| Guy Kieth vs Lili | 13–5 | 72.22% |
| Guy Kieth vs Victor | 9–9 | 50.00% |
| Guy Kieth vs Lee | 4–9 | 30.77% |
| Guy Kieth vs Devil Jin | 4–8 | 33.33% |
| Guy Kieth vs Kuma | 3–7 | 30.00% |
| Guy Kieth vs Zafina | 5–5 | 50.00% |
| Guy Kieth vs Leroy | 3–6 | 33.33% |
| Guy Kieth vs Raven | 4–5 | 44.44% |
| Guy Kieth vs Nina | 3–5 | 37.50% |
| Guy Kieth vs Shaheen | 1–3 | 25.00% |
| Guy Kieth vs Claudio | 2–1 | 66.67% |
| Guy Kieth vs Lidia | 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.