Steven Zierk vs Christopher Woojin Yoo
GM Steven Zierk (2487) · GM Christopher Woojin Yoo (2586)
Steven Zierk and Christopher Woojin Yoo have played 11 recorded games against each other, the first in Oct 2018 and the most recent in Aug 2026. Zierk leads 2 wins to 4 - trailing overall, with 5 draws (55% of the games were decisive). Their most common battleground is the Ruy Lopez: Morphy Defense (2 games). The average game between them lasted 49 moves.
Results by color
| Split | Games | Zierk | Draws | Yoo |
|---|---|---|---|---|
| Zierk with White | 8 | 2 | 3 | 3 |
| Yoo with White | 3 | 0 | 2 | 1 |
Results by time format
| Format | Games | Zierk | Draws | Yoo |
|---|---|---|---|---|
| Blitz | 8 | 2 | 2 | 4 |
| Classical | 3 | 0 | 3 | 0 |
Openings in their games
| ECO | Opening | Games | Zierk | Draws | Yoo |
|---|---|---|---|---|---|
| C77 | Ruy Lopez: Morphy Defense | 2 | 0 | 0 | 2 |
| B52 | Sicilian: Moscow Variation | 2 | 1 | 0 | 1 |
| B30 | Sicilian: Rossolimo | 1 | 0 | 1 | 0 |
| B31 | Sicilian: Rossolimo | 1 | 1 | 0 | 0 |
| A16 | English Opening | 1 | 0 | 1 | 0 |
| C03 | French: Tarrasch Variation | 1 | 0 | 1 | 0 |
| C13 | French: Classical Variation | 1 | 0 | 1 | 0 |
| C16 | French: Winawer Variation | 1 | 0 | 1 | 0 |
All games
| Date | White | Black | Result | Opening | Event |
|---|---|---|---|---|---|
| Aug 2026 | Steven Zierk | Christopher Woojin Yoo | 1/2-1/2 | Sicilian: Rossolimo | 3rd 3-0 Thu 13th Aug 2026 |
| Aug 2026 | Steven Zierk | Christopher Woojin Yoo | 1-0 | Sicilian: Rossolimo | 2nd 3-0 Thu 13th Aug 2026 |
| Jul 2026 | Steven Zierk | Christopher Woojin Yoo | 0-1 | Ruy Lopez: Morphy Defense | 3rd 3-0 Thu 16th Jul 2026 |
| Jul 2026 | Steven Zierk | Christopher Woojin Yoo | 0-1 | Sicilian: Moscow Variation | 2nd 3-0 Thu 9th Jul 2026 |
| Jun 2026 | Steven Zierk | Christopher Woojin Yoo | 1-0 | Sicilian: Moscow Variation | 3rd 3-0 Thu 25th Jun 2026 |
| Jun 2026 | Steven Zierk | Christopher Woojin Yoo | 0-1 | Ruy Lopez: Morphy Defense | Titled Tue 9th Jun 2026 |
| Nov 2024 | Steven Zierk | Christopher Woojin Yoo | 1/2-1/2 | French: Tarrasch Variation | Titled Tue Late |
| Nov 2021 | Christopher Woojin Yoo | Steven Zierk | 1-0 | Sicilian | Titled Tue |
| Nov 2019 | Steven Zierk | Christopher Woojin Yoo | 1/2-1/2 | English Opening | Saint Louis Winter A |
| Jun 2019 | Christopher Woojin Yoo | Steven Zierk | 1/2-1/2 | French: Classical Variation | Charlotte CCCSA Summer GM |
| Oct 2018 | Christopher Woojin Yoo | Steven Zierk | 1/2-1/2 | French: Winawer Variation | Saint Louis Fall-B |
Interactive board, all 11 games, opening explorer and engine analysis.
Browse the gamesFrequently asked questions
What is the head-to-head score between Steven Zierk and Christopher Woojin Yoo?
In 11 recorded games, Steven Zierk has 2 wins, Christopher Woojin Yoo has 4 wins, and they have drawn 5 times.
How many times have Steven Zierk and Christopher Woojin Yoo played each other?
Our database records 11 games between them, from Oct 2018 to Aug 2026.
What openings do Steven Zierk and Christopher Woojin Yoo play against each other?
The most common opening in their games is the Ruy Lopez: Morphy Defense (2 games), followed by the Sicilian: Moscow Variation (2). The full opening breakdown and every game are on this page.