Prepare against Theodore Biyiasas
United States · World #31,066 classical · FIDE ID 2043173
When preparing against Theodore Biyiasas, expect 1.d4 in 65% of White games. Against 1.e4 the reply is 1...e5 (50% of games); against 1.d4, 1...Nf6 (100%).
Our database contains 31 games by Theodore Biyiasas, covering Jul 2011 to Oct 2026. Below you'll find Theodore Biyiasas's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Theodore Biyiasas before a game. You can open the same data in the free interactive preparation workstation, which builds a move-by-move opening tree from every game.
Ratings
| Time control | Current | Peak | Peak date |
|---|---|---|---|
| Classical | 1,980 | 2,051 | Jan 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 31 | 10 | 5 | 16 | 32.3% |
| As White | 17 | 6 | 2 | 9 | 35.3% |
| As Black | 14 | 4 | 3 | 7 | 28.6% |
FIDE rated record
From FIDE's official rated-game ledger (2008-2026): 463 rated games against 358 different opponents, across 100 events in 1 countries. These counts cover FIDE-rated play only, so they differ from the database totals above.
By time control
| Format | Games | W | D | L | Win rate | Avg opp | Perf | Unbeaten |
|---|---|---|---|---|---|---|---|---|
| Classical | 459 | 174 | 152 | 133 | 37.9% | 1,945 | 1,963 | 11 |
Against the field
| Opposition | Games | W | D | L | Win rate |
|---|---|---|---|---|---|
| Against higher-rated | 156 | 25 | 51 | 80 | 16.0% |
| Against lower-rated | 228 | 115 | 81 | 32 | 50.4% |
Wins over titled players: 5 vs IM · 11 vs FM · 2 vs CM · 1 vs WGM · 1 vs WFM · 3 vs WCM.
Tournament wins
6 tournament wins from 98 events, 1 of them outright.
Year by year
| Year | Games | W | D | L | Avg opp | Perf |
|---|---|---|---|---|---|---|
| 2026 | 21 | 9 | 5 | 7 | 1,847 | 1,885 |
| 2025 | 47 | 24 | 13 | 10 | 1,935 | 2,048 |
| 2024 | 56 | 23 | 18 | 15 | 1,941 | 1,979 |
| 2023 | 38 | 19 | 10 | 9 | 1,945 | 2,043 |
| 2022 | 31 | 5 | 20 | 6 | 1,815 | 1,802 |
| 2021 | 23 | 11 | 8 | 4 | 1,871 | 1,980 |
| 2020 | 13 | 7 | 4 | 2 | 1,906 | 2,040 |
| 2019 | 32 | 11 | 12 | 9 | 1,963 | 1,988 |
| 2018 | 29 | 9 | 8 | 12 | 1,932 | 1,855 |
| 2017 | 36 | 14 | 11 | 11 | 2,029 | 2,063 |
| 2016 | 28 | 12 | 9 | 7 | 1,951 | 1,967 |
| 2015 | 30 | 8 | 13 | 9 | 1,926 | 1,926 |
| 2014 | 12 | 3 | 3 | 6 | 2,129 | 1,929 |
| 2013 | 6 | 2 | 2 | 2 | 2,026 | 2,026 |
| 2012 | 8 | 4 | 1 | 3 | 2,141 | 1,841 |
| 2011 | 22 | 5 | 9 | 8 | 2,018 | 1,868 |
| 2010 | 9 | 3 | 3 | 3 | 2,163 | 1,763 |
| 2009 | 15 | 6 | 1 | 8 | 2,038 | 1,638 |
| 2008 | 7 | 1 | 2 | 4 | 1,929 | 1,529 |
Move-by-move preparation stats
Straight from the preparation tree built over all of Theodore Biyiasas's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Theodore Biyiasas's side.
First moves as White (17 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 11 | 64.7% | 36.4% |
| e4 | 6 | 35.3% | 50.0% |
Main lines as White
- 1.d4 — 65% of White games, 36.4% score
- …Nf6 (82% of these games) — Biyiasas usually continues c4 (33.3% score)
- …d5 (18% of these games) — Biyiasas usually continues c4 (50.0% score)
- 1.e4 — 35% of White games, 50.0% score
- …c5 (50% of these games) — Biyiasas usually continues Nf3 (0.0% score)
- …e6 (17% of these games) — Biyiasas usually continues d4 (100.0% score)
- …c6 (17% of these games) — Biyiasas usually continues d4 (100.0% score)
As Black against 1.e4 (8 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e5 | 4 | 50.0% | 75.0% |
| c5 | 2 | 25.0% | 50.0% |
| c6 | 2 | 25.0% | 50.0% |
As Black against 1.d4 (1 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 1 | 100.0% | 0.0% |
Theodore Biyiasas's chess games
All 31 games by Theodore Biyiasas in the Chess.ceo database (Jul 2011 - Oct 2026) are free to browse, search and replay: filter by opening, opponent, event or date on the player page, or step through any game on the analysis board. Record: 10 wins, 5 draws, 16 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| D91 | Grünfeld Defense | 3 | 0/0/3 | 0.0% |
| A77 | Benoni Defense | 2 | 1/1/0 | 50.0% |
| A36 | English Opening: Symmetrical | 1 | 0/0/1 | 0.0% |
| C12 | French: Classical Variation | 1 | 1/0/0 | 100.0% |
| D35 | Indian Defense | 1 | 0/1/0 | 0.0% |
| C34 | King's Gambit | 1 | 0/0/1 | 0.0% |
| E73 | King's Indian Defense: Averbakh System | 1 | 1/0/0 | 100.0% |
| E33 | Nimzo-Indian: Classical Variation | 1 | 0/0/1 | 0.0% |
| E49 | Nimzo-Indian: Rubinstein System | 1 | 0/0/1 | 0.0% |
| D35 | Queen's Gambit Declined | 1 | 0/0/1 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B55 | Sicilian | 2 | 1/0/1 | 50.0% |
| C95 | Ruy Lopez: Closed | 2 | 2/0/0 | 100.0% |
| E07 | Catalan | 1 | 0/0/1 | 0.0% |
| E62 | English Opening | 1 | 0/0/1 | 0.0% |
| A11 | English Opening: Slav Setup | 1 | 0/0/1 | 0.0% |
| A11 | Nimzo-Larsen Attack | 1 | 0/0/1 | 0.0% |
| A01 | Nimzovich-Larsen attack | 1 | 0/0/1 | 0.0% |
| C68 | Ruy Lopez: Exchange | 1 | 0/0/1 | 0.0% |
| C45 | Scotch Game | 1 | 1/0/0 | 100.0% |
| B13 | Caro-Kann: Exchange Variation | 1 | 0/1/0 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jan 2026 | Saidakbar Saydaliev | 2,440 | Cornerstone NY Swiss | E73 |
| Sep 2024 | William Alfaro Caracas | 2,137 | San Jose 1000 GM Labor Day Open | E10 |
| Aug 2014 | Vlad Yanovsky | 2,049 | 115th US Open | C45 |
| Sep 2023 | Kritin Gopalakrishnan | 1,858 | Sunnyvale 1000GM Bona Open 09 | D10 |
| Apr 2023 | Joshua Xia | 1,814 | Sunnyvale Bay Area Open | C95 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| San Jose 1000 GM Labor Day Open | 2024 | 5 | 1 | 1,956 |
| Cornerstone NY Swiss | 2026 | 5 | 1 | 1,948 |
| Sunnyvale 1000GM Bona Open 09 | 2023 | 4 | 2.5 | 1,883 |
| PNWCC-Bulgaria Hybrid 06 | 2022 | 4 | 2 | 2,177 |
| 115th US Open | 2014 | 4 | 2 | 2,038 |
| San Francisco Donaldson-ch | 2019 | 3 | 1 | 1,949 |
| 111th US Open | 2010 | 1 | 1 | – |
| 117th US Open | 2016 | 1 | 0 | 1,786 |
Interactive opening tree from all 31 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Theodore Biyiasas's chess games?
31 games by Theodore Biyiasas, from Jul 2011 to Oct 2026, are free to browse and replay move by move — no signup needed. The preparation view groups them into an opening tree showing every line Theodore Biyiasas has played.
What does Theodore Biyiasas play on the first move as White?
Across 17 games with White in our database, Theodore Biyiasas opens with 1.d4 (65% of games), 1.e4 (35% of games). Against 1.e4 as Black, Theodore Biyiasas answers 1...e5 (50% of games), 1...c5 (25% of games), 1...c6 (25% of games). Against 1.d4: 1...Nf6 (100% of games).
What openings does Theodore Biyiasas play as White?
As White, Theodore Biyiasas's most-played openings in our database are: Grünfeld Defense (3 games, 0.0% win rate); Benoni Defense (2 games, 50.0% win rate); English Opening: Symmetrical (1 games, 0.0% win rate). The full breakdown of 17 games with White is in the table above.
What openings does Theodore Biyiasas play as Black?
As Black, Theodore Biyiasas most often plays: Sicilian (2 games, 50.0% win rate); Ruy Lopez: Closed (2 games, 100.0% win rate); Catalan (1 games, 0.0% win rate). See the table above for the top ten Black openings across 14 games.
What is Theodore Biyiasas's FIDE rating?
Theodore Biyiasas is currently rated 1,980 in classical chess. Peak classical rating: 2,051 (Jan 2026).
How many games has Theodore Biyiasas played?
Our database contains 31 games by Theodore Biyiasas, covering Jul 2011 to Oct 2026. Overall record: 10 wins, 5 draws, 16 losses (32.3% win rate).
How do I prepare against Theodore Biyiasas?
31 games by Theodore Biyiasas reveal their opening repertoire, most-played lines, and the variations where they score worst — the raw material for targeted preparation. The interactive opening tree lets you walk every line to any depth.