Prepare against Haroldo Cunha Dos Santos Junior
FM · Brazil · World #37,770 classical · FIDE ID 2100460
When preparing against Haroldo Cunha Dos Santos Junior, expect 1.d4 in 71% of White games. Against 1.e4 the reply is 1...e5 (82% of games); against 1.d4, 1...d5 (80%). Lowest win rate among frequent openings: Ruy Lopez as Black, 36.7% over 30 games.
Our database contains 698 games by Haroldo Cunha Dos Santos Junior, covering Apr 2003 to Oct 2026. Below you'll find Haroldo Cunha Dos Santos Junior's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Haroldo Cunha Dos Santos Junior 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 | 1,946 | 2,278 | Apr 2004 |
| Rapid | 2,144 | 2,293 | Nov 2013 |
| Blitz | 1,962 | 2,174 | Jul 2017 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 698 | 401 | 105 | 192 | 57.4% |
| As White | 343 | 213 | 52 | 78 | 62.1% |
| As Black | 355 | 188 | 53 | 114 | 53.0% |
FIDE rated record
From FIDE's official rated-game ledger (2008-2026): 893 rated games against 593 different opponents, across 126 events in 2 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 | 639 | 372 | 96 | 171 | 58.2% | 1,977 | 2,088 | 22 |
| Rapid | 167 | 111 | 17 | 39 | 66.5% | 1,931 | 2,085 | 16 |
| Blitz | 56 | 31 | 0 | 25 | 55.4% | 1,814 | 1,865 | 3 |
Against the field
| Opposition | Games | W | D | L | Win rate |
|---|---|---|---|---|---|
| Against higher-rated | 206 | 37 | 42 | 127 | 18.0% |
| Against lower-rated | 608 | 430 | 65 | 113 | 70.7% |
Wins over titled players: 4 vs GM · 8 vs IM · 31 vs FM · 15 vs CM · 5 vs WIM · 4 vs WFM · 3 vs WCM.
Tournament wins
9 tournament wins from 126 events, 1 of them outright.
Year by year
| Year | Games | W | D | L | Avg opp | Perf |
|---|---|---|---|---|---|---|
| 2026 | 28 | 16 | 3 | 9 | 1,901 | 2,004 |
| 2025 | 48 | 27 | 4 | 17 | 1,749 | 1,836 |
| 2024 | 45 | 23 | 8 | 14 | 1,971 | 2,036 |
| 2023 | 56 | 36 | 5 | 15 | 1,762 | 1,893 |
| 2022 | 137 | 77 | 16 | 44 | 1,889 | 1,977 |
| 2021 | 13 | 8 | 1 | 4 | 1,864 | 1,987 |
| 2019 | 24 | 14 | 5 | 5 | 1,923 | 2,079 |
| 2018 | 65 | 39 | 8 | 18 | 1,917 | 2,037 |
| 2017 | 78 | 48 | 8 | 22 | 1,982 | 2,119 |
| 2016 | 39 | 23 | 7 | 9 | 1,961 | 2,105 |
| 2015 | 49 | 30 | 7 | 12 | 1,981 | 2,123 |
| 2014 | 41 | 25 | 5 | 11 | 1,930 | 2,021 |
| 2013 | 55 | 37 | 4 | 14 | 2,013 | 2,173 |
| 2012 | 106 | 71 | 10 | 25 | 2,107 | 2,239 |
| 2011 | 49 | 24 | 13 | 12 | 2,206 | 2,277 |
| 2010 | 39 | 20 | 6 | 13 | 2,109 | 2,136 |
| 2009 | 14 | 10 | 2 | 2 | 2,062 | 2,262 |
| 2008 | 7 | 3 | 2 | 2 | 2,161 | 2,081 |
Where Haroldo Cunha Dos Santos Junior has played
Brazil (125) · Argentina (1)
Move-by-move preparation stats
Straight from the preparation tree built over all of Haroldo Cunha Dos Santos Junior's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Haroldo Cunha Dos Santos Junior's side.
First moves as White (343 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 245 | 71.4% | 70.4% |
| Nf3 | 78 | 22.7% | 67.3% |
| e4 | 19 | 5.5% | 73.7% |
| c3 | 1 | 0.3% | 0.0% |
Main lines as White
- 1.d4 — 71% of White games, 70.4% score
- …Nf6 (50% of these games) — Junior usually continues Nf3 (70.9% score)
- …d5 (32% of these games) — Junior usually continues Nf3 (70.7% score)
- …e6 (5% of these games) — Junior usually continues Nf3 (60.0% score)
- 1.Nf3 — 23% of White games, 67.3% score
- …Nf6 (50% of these games) — Junior usually continues d4 (78.9% score)
- …d5 (13% of these games) — Junior usually continues d4 (75.0% score)
- …c5 (12% of these games) — Junior usually continues c4 (60.0% score)
As Black against 1.e4 (176 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e5 | 144 | 81.8% | 61.1% |
| e6 | 22 | 12.5% | 47.7% |
| d6 | 4 | 2.3% | 62.5% |
| c5 | 2 | 1.1% | 50.0% |
| d5 | 2 | 1.1% | 75.0% |
| Nc6 | 1 | 0.6% | 0.0% |
As Black against 1.d4 (101 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d5 | 81 | 80.2% | 57.4% |
| Nf6 | 8 | 7.9% | 43.8% |
| e6 | 5 | 5.0% | 70.0% |
| d6 | 2 | 2.0% | 100.0% |
| b6 | 2 | 2.0% | 100.0% |
| a6 | 2 | 2.0% | 100.0% |
Haroldo Cunha Dos Santos Junior's chess games
All 698 games by Haroldo Cunha Dos Santos Junior in the Chess.ceo database (Apr 2003 - 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: 401 wins, 105 draws, 192 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A48 | Indian Defense | 101 | 68/13/20 | 67.3% |
| D02 | London System | 84 | 51/14/19 | 60.7% |
| D02 | Queen's Pawn Game | 32 | 24/2/6 | 75.0% |
| A07 | Réti Opening | 20 | 8/3/9 | 40.0% |
| A81 | Dutch Defense | 17 | 11/5/1 | 64.7% |
| D02 | Benoni Defense | 10 | 8/0/2 | 80.0% |
| A48 | Modern Defense | 9 | 5/1/3 | 55.6% |
| A90 | Horwitz Defense | 9 | 4/4/1 | 44.4% |
| A30 | English Opening | 7 | 1/2/4 | 14.3% |
| E63 | King's Indian Defense: Fianchetto Variation | 7 | 3/0/4 | 42.9% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| D13 | Slav Defense | 68 | 32/11/25 | 47.1% |
| C66 | Ruy Lopez | 30 | 11/7/12 | 36.7% |
| C45 | Scotch Game | 26 | 14/2/10 | 53.8% |
| A08 | Réti Opening | 13 | 10/3/0 | 76.9% |
| D02 | Queen's Pawn Game | 13 | 10/2/1 | 76.9% |
| C53 | Italian Game: Classical Variation | 13 | 8/1/4 | 61.5% |
| C30 | King's Gambit | 11 | 8/2/1 | 72.7% |
| C63 | Ruy Lopez: Schliemann | 10 | 8/1/1 | 80.0% |
| C50 | Italian Game | 10 | 8/1/1 | 80.0% |
| A34 | English Opening: Symmetrical | 8 | 3/1/4 | 37.5% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Sep 2022 | Krikor Sevag Mekhitarian | 2,544 | 6th Matinhos Open | C42 |
| Aug 2018 | Andres Rodriguez Vila | 2,487 | Caioba Telecom Open | A85 |
| Jan 1999 | Eduardo Thelio Limp | 2,413 | ch-BRA66 sf2 | D02 |
| Dec 2000 | Jefferson Pelikian | 2,394 | ch-BRA 67th | A46 |
| Jul 2012 | Georg von Buelow | 2,391 | 3rd Maravilhosa Open | A48 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| ch-Catarinense | 2017 | 38 | 22 | 2,136 |
| ch-BRA sf | 2011 | 32 | 20 | 2,345 |
| Caioba Telecom Open | 2018 | 17 | 10 | 2,115 |
| BRA ch-SC | 2005 | 15 | 10.5 | 2,399 |
| ch-Pan American Seniors 50 | 2022 | 15 | 7 | 2,030 |
| Brasilia Terraviva Open | 2017 | 13 | 9 | 2,032 |
| 51st ch-BRA | 1984 | 12 | 7 | 2,394 |
| ch-BRA 78th | 2011 | 11 | 1.5 | 2,213 |
Interactive opening tree from all 698 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Haroldo Cunha Dos Santos Junior's chess games?
698 games by Haroldo Cunha Dos Santos Junior, from Apr 2003 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 Haroldo Cunha Dos Santos Junior has played.
What does Haroldo Cunha Dos Santos Junior play on the first move as White?
Across 343 games with White in our database, Haroldo Cunha Dos Santos Junior opens with 1.d4 (71% of games), 1.Nf3 (23% of games), 1.e4 (6% of games). Against 1.e4 as Black, Haroldo Cunha Dos Santos Junior answers 1...e5 (82% of games), 1...e6 (13% of games), 1...d6 (2% of games). Against 1.d4: 1...d5 (80% of games), 1...Nf6 (8% of games), 1...e6 (5% of games).
What openings does Haroldo Cunha Dos Santos Junior play as White?
As White, Haroldo Cunha Dos Santos Junior's most-played openings in our database are: Indian Defense (101 games, 67.3% win rate); London System (84 games, 60.7% win rate); Queen's Pawn Game (32 games, 75.0% win rate). The full breakdown of 343 games with White is in the table above.
What openings does Haroldo Cunha Dos Santos Junior play as Black?
As Black, Haroldo Cunha Dos Santos Junior most often plays: Slav Defense (68 games, 47.1% win rate); Ruy Lopez (30 games, 36.7% win rate); Scotch Game (26 games, 53.8% win rate). See the table above for the top ten Black openings across 355 games.
What is Haroldo Cunha Dos Santos Junior's FIDE rating?
Haroldo Cunha Dos Santos Junior is currently rated 1,946 in classical chess, 2,144 in rapid and 1,962 in blitz. Peak classical rating: 2,278 (Apr 2004).
How many games has Haroldo Cunha Dos Santos Junior played?
Our database contains 698 games by Haroldo Cunha Dos Santos Junior, covering Apr 2003 to Oct 2026. Overall record: 401 wins, 105 draws, 192 losses (57.4% win rate).
How do I prepare against Haroldo Cunha Dos Santos Junior?
698 games by Haroldo Cunha Dos Santos Junior 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.