Prepare against Ruben Abraham Ulloa Castillo
CM · Panama · World #11,469 classical · FIDE ID 6601243
When preparing against Ruben Abraham Ulloa Castillo, expect 1.d4 in 68% of White games. Against 1.e4 the reply is 1...d5 (33% of games); against 1.d4, 1...Nf6 (71%).
Our database contains 56 games by Ruben Abraham Ulloa Castillo, covering Jan 2013 to Oct 2026. Below you'll find Ruben Abraham Ulloa Castillo's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Ruben Abraham Ulloa Castillo 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 | 2,149 | 2,238 | May 2018 |
| Rapid | 2,131 | 2,148 | Dec 2025 |
| Blitz | 2,087 | 2,144 | Aug 2019 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 56 | 24 | 7 | 25 | 42.9% |
| As White | 28 | 14 | 2 | 12 | 50.0% |
| As Black | 28 | 10 | 5 | 13 | 35.7% |
FIDE rated record
From FIDE's official rated-game ledger (2011-2026): 785 rated games against 354 different opponents, across 106 events in 9 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 | 476 | 241 | 102 | 133 | 50.6% | 2,019 | 2,092 | 25 |
| Rapid | 20 | 14 | 1 | 5 | 70.0% | 1,910 | 2,066 | 5 |
| Blitz | 262 | 157 | 18 | 87 | 59.9% | 1,960 | 2,047 | 7 |
Against the field
| Opposition | Games | W | D | L | Win rate |
|---|---|---|---|---|---|
| Against higher-rated | 292 | 65 | 66 | 161 | 22.3% |
| Against lower-rated | 380 | 280 | 53 | 47 | 73.7% |
Wins over titled players: 1 vs GM · 8 vs IM · 55 vs FM · 77 vs CM · 2 vs WGM · 3 vs WIM · 9 vs WFM · 14 vs WCM.
Tournament wins
9 tournament wins from 90 events, 2 of them outright.
Year by year
| Year | Games | W | D | L | Avg opp | Perf |
|---|---|---|---|---|---|---|
| 2026 | 18 | 10 | 4 | 4 | 2,076 | 2,209 |
| 2025 | 44 | 26 | 3 | 15 | 1,981 | 2,081 |
| 2024 | 63 | 42 | 5 | 16 | 1,908 | 2,057 |
| 2023 | 45 | 29 | 3 | 13 | 1,925 | 2,048 |
| 2022 | 7 | 5 | 1 | 1 | 1,770 | 1,999 |
| 2021 | 9 | 5 | 0 | 4 | 1,813 | 1,858 |
| 2020 | 23 | 12 | 5 | 6 | 2,029 | 2,120 |
| 2019 | 100 | 67 | 10 | 23 | 1,902 | 2,069 |
| 2018 | 83 | 37 | 23 | 23 | 2,103 | 2,167 |
| 2017 | 89 | 52 | 21 | 16 | 2,069 | 2,201 |
| 2016 | 96 | 44 | 21 | 31 | 2,057 | 2,093 |
| 2015 | 55 | 33 | 5 | 17 | 2,033 | 2,095 |
| 2014 | 32 | 16 | 9 | 7 | 1,926 | 2,003 |
| 2013 | 57 | 25 | 9 | 23 | 2,086 | 2,027 |
| 2012 | 56 | 17 | 6 | 33 | 2,086 | 1,807 |
| 2011 | 8 | 3 | 0 | 5 | 1,933 | 1,833 |
Where Ruben Abraham Ulloa Castillo has played
Panama (89) · Costa Rica (5) · Nicaragua (4) · Cuba (2) · Guatemala (2) · Azerbaijan (1) · El Salvador (1) · France (1) · Mexico (1)
Move-by-move preparation stats
Straight from the preparation tree built over all of Ruben Abraham Ulloa Castillo's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Ruben Abraham Ulloa Castillo's side.
First moves as White (28 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 19 | 67.9% | 44.7% |
| e4 | 5 | 17.9% | 70.0% |
| Nf3 | 4 | 14.3% | 75.0% |
Main lines as White
- 1.d4 — 68% of White games, 44.7% score
- …Nf6 (84% of these games) — Castillo usually continues c4 (50.0% score)
- …d5 (16% of these games) — Castillo usually continues Nf3 (50.0% score)
- 1.e4 — 18% of White games, 70.0% score
- …c5 (40% of these games) — Castillo usually continues Nf3 (25.0% score)
- …e6 (20% of these games) — Castillo usually continues d4 (100.0% score)
- …Nc6 (20% of these games) — Castillo usually continues d4 (100.0% score)
As Black against 1.e4 (12 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d5 | 4 | 33.3% | 87.5% |
| e5 | 3 | 25.0% | 50.0% |
| c6 | 3 | 25.0% | 66.7% |
| c5 | 2 | 16.7% | 0.0% |
As Black against 1.d4 (7 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 5 | 71.4% | 30.0% |
| d5 | 2 | 28.6% | 0.0% |
Ruben Abraham Ulloa Castillo's chess games
All 56 games by Ruben Abraham Ulloa Castillo in the Chess.ceo database (Jan 2013 - 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: 24 wins, 7 draws, 25 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| D05 | Indian Defense | 5 | 2/0/3 | 40.0% |
| E11 | Catalan | 4 | 2/0/2 | 50.0% |
| E63 | King's Indian Defense | 4 | 2/0/2 | 50.0% |
| E73 | King's Indian Defense: Averbakh System | 2 | 1/0/1 | 50.0% |
| D13 | Slav Defense | 2 | 2/0/0 | 100.0% |
| A30 | Queen's Indian Defense | 1 | 1/0/0 | 100.0% |
| D02 | Queen's Pawn Game | 1 | 1/0/0 | 100.0% |
| C78 | Ruy Lopez: Morphy Defense | 1 | 1/0/0 | 100.0% |
| B40 | Sicilian | 1 | 0/0/1 | 0.0% |
| B31 | Sicilian: Rossolimo | 1 | 0/1/0 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B01 | Scandinavian Defense: Main Line | 4 | 3/1/0 | 75.0% |
| B12 | Caro-Kann: Advance Variation | 2 | 1/0/1 | 50.0% |
| D92 | Grünfeld Defense | 2 | 0/1/1 | 0.0% |
| D00 | London System | 2 | 1/0/1 | 50.0% |
| A06 | Réti Opening | 2 | 0/0/2 | 0.0% |
| B48 | Sicilian: Taimanov | 2 | 0/0/2 | 0.0% |
| D06 | Slav Defense | 2 | 0/0/2 | 0.0% |
| C77 | Ruy Lopez: Morphy Defense | 1 | 0/0/1 | 0.0% |
| E38 | Nimzo-Indian: Classical Variation | 1 | 0/0/1 | 0.0% |
| A06 | Nimzo-Larsen Attack | 1 | 0/1/0 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Nov 2023 | Licael Roderick Ticona Rocabado | 2,412 | 9th ch-Iberoamerican | C07 |
| May 2018 | Deysi Estella Cori Tello | 2,387 | 53rd Capablanca Memorial Open | E73 |
| Aug 2026 | Ronniel Abraham Ramirez Cabreja | 2,311 | 5th Panama Open 2026 | D02 |
| Nov 2013 | Nahun Gavarrete | 2,120 | 3rd Panama Open | B12 |
| Sep 2016 | Gerrard Mphungu | 2,034 | Olympiad-42 | E11 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| 5th Panama Open 2026 | 2026 | 9 | 5 | 2,167 |
| 9th ch-Iberoamerican | 2023 | 9 | 5.5 | 2,204 |
| Olympiad-42 | 2016 | 8 | 2.5 | 2,115 |
| 46th FIDE Chess Olympiad Samarkand 2026 | Open | Matches 1-12 | 2026 | 7 | 2 | 1,970 |
| 53rd Capablanca Memorial Open | 2018 | 6 | 1.5 | 2,049 |
| ch-Pan American U20 | 2015 | 6 | 4 | 1,994 |
| 4th Panama Open | 2023 | 4 | 4 | 1,910 |
| 3rd Panama Open | 2013 | 4 | 1.5 | 2,065 |
Interactive opening tree from all 56 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Ruben Abraham Ulloa Castillo's chess games?
56 games by Ruben Abraham Ulloa Castillo, from Jan 2013 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 Ruben Abraham Ulloa Castillo has played.
What does Ruben Abraham Ulloa Castillo play on the first move as White?
Across 28 games with White in our database, Ruben Abraham Ulloa Castillo opens with 1.d4 (68% of games), 1.e4 (18% of games), 1.Nf3 (14% of games). Against 1.e4 as Black, Ruben Abraham Ulloa Castillo answers 1...d5 (33% of games), 1...e5 (25% of games), 1...c6 (25% of games). Against 1.d4: 1...Nf6 (71% of games), 1...d5 (29% of games).
What openings does Ruben Abraham Ulloa Castillo play as White?
As White, Ruben Abraham Ulloa Castillo's most-played openings in our database are: Indian Defense (5 games, 40.0% win rate); Catalan (4 games, 50.0% win rate); King's Indian Defense (4 games, 50.0% win rate). The full breakdown of 28 games with White is in the table above.
What openings does Ruben Abraham Ulloa Castillo play as Black?
As Black, Ruben Abraham Ulloa Castillo most often plays: Scandinavian Defense: Main Line (4 games, 75.0% win rate); Caro-Kann: Advance Variation (2 games, 50.0% win rate); Grünfeld Defense (2 games, 0.0% win rate). See the table above for the top ten Black openings across 28 games.
What is Ruben Abraham Ulloa Castillo's FIDE rating?
Ruben Abraham Ulloa Castillo is currently rated 2,149 in classical chess, 2,131 in rapid and 2,087 in blitz. Peak classical rating: 2,238 (May 2018).
How many games has Ruben Abraham Ulloa Castillo played?
Our database contains 56 games by Ruben Abraham Ulloa Castillo, covering Jan 2013 to Oct 2026. Overall record: 24 wins, 7 draws, 25 losses (42.9% win rate).
How do I prepare against Ruben Abraham Ulloa Castillo?
56 games by Ruben Abraham Ulloa Castillo 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.