Prepare against Arnor Serafim Junior
Brazil · World #100,626 classical · FIDE ID 2130750
When preparing against Arnor Serafim Junior, expect 1.c4 in 55% of White games. Against 1.e4 the reply is 1...c5 (97% of games); against 1.d4, 1...Nf6 (87%). Lowest win rate among frequent openings: Réti Opening as White, 26.2% over 65 games.
Our database contains 611 games by Arnor Serafim Junior, covering Nov 2009 to Oct 2026. Below you'll find Arnor Serafim Junior's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Arnor Serafim 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 | 1,728 | 1,978 | Jan 2010 |
| Rapid | 1,850 | 1,867 | Aug 2024 |
| Blitz | 1,845 | 1,861 | Apr 2018 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 611 | 232 | 119 | 260 | 38.0% |
| As White | 311 | 128 | 57 | 126 | 41.2% |
| As Black | 300 | 104 | 62 | 134 | 34.7% |
FIDE rated record
From FIDE's official rated-game ledger (2009-2026): 1,050 rated games against 927 different opponents, across 147 events in 22 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 | 930 | 368 | 178 | 384 | 39.6% | 1,868 | 1,809 | 10 |
| Rapid | 47 | 22 | 4 | 21 | 46.8% | 1,794 | 1,740 | 3 |
| Blitz | 27 | 12 | 1 | 14 | 44.4% | 1,639 | 1,506 | 2 |
Against the field
| Opposition | Games | W | D | L | Win rate |
|---|---|---|---|---|---|
| Against higher-rated | 480 | 62 | 102 | 316 | 12.9% |
| Against lower-rated | 323 | 196 | 60 | 67 | 60.7% |
Wins over titled players: 1 vs IM · 10 vs FM · 10 vs CM · 2 vs WIM · 2 vs WFM · 9 vs WCM.
Year by year
| Year | Games | W | D | L | Avg opp | Perf |
|---|---|---|---|---|---|---|
| 2026 | 21 | 7 | 1 | 13 | 1,967 | 1,653 |
| 2025 | 69 | 21 | 16 | 32 | 1,881 | 1,814 |
| 2024 | 50 | 17 | 13 | 20 | 1,833 | 1,799 |
| 2023 | 113 | 48 | 12 | 53 | 1,742 | 1,657 |
| 2020 | 29 | 9 | 6 | 14 | 1,700 | 1,629 |
| 2019 | 107 | 37 | 29 | 41 | 1,838 | 1,802 |
| 2018 | 111 | 42 | 24 | 45 | 1,845 | 1,816 |
| 2017 | 68 | 26 | 16 | 26 | 1,917 | 1,886 |
| 2016 | 93 | 39 | 16 | 38 | 1,840 | 1,821 |
| 2015 | 98 | 47 | 14 | 37 | 1,894 | 1,873 |
| 2014 | 99 | 38 | 16 | 45 | 1,952 | 1,824 |
| 2013 | 86 | 40 | 10 | 36 | 1,924 | 1,866 |
| 2012 | 38 | 18 | 5 | 15 | 1,948 | 1,783 |
| 2011 | 21 | 8 | 5 | 8 | 1,997 | 1,797 |
| 2010 | 19 | 6 | 7 | 6 | 1,949 | 1,720 |
| 2009 | 28 | 11 | 3 | 14 | 1,973 | 1,868 |
Where Arnor Serafim Junior has played
Brazil (112) · Italy (8) · Argentina (2) · Austria (2) · Czechia (2) · Greece (2) · Panama (2) · Portugal (2) · Uruguay (2) · Albania (1) · Belgium (1) · Chile (1) · Colombia (1) · Costa Rica (1) · Dominican Republic (1) · Spain (1) · Mexico (1) · Peru (1) · Poland (1) · Romania (1) · Singapore (1) · Slovenia (1)
Move-by-move preparation stats
Straight from the preparation tree built over all of Arnor Serafim Junior's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Arnor Serafim Junior's side.
First moves as White (278 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c4 | 153 | 55.0% | 55.2% |
| Nf3 | 118 | 42.4% | 42.8% |
| d4 | 6 | 2.2% | 16.7% |
| e4 | 1 | 0.4% | 100.0% |
Main lines as White
- 1.c4 — 55% of White games, 55.2% score
- …Nf6 (27% of these games) — Junior usually continues Nf3 (55.9% score)
- …e5 (24% of these games) — Junior usually continues Nc3 (63.5% score)
- …c5 (16% of these games) — Junior usually continues Nc3 (59.1% score)
- 1.Nf3 — 42% of White games, 42.8% score
- …Nf6 (42% of these games) — Junior usually continues g3 (44.4% score)
- …d5 (27% of these games) — Junior usually continues g3 (42.2% score)
- …c5 (10% of these games) — Junior usually continues g3 (45.5% score)
As Black against 1.e4 (135 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 131 | 97.0% | 43.9% |
| Nf6 | 3 | 2.2% | 33.3% |
| d6 | 1 | 0.7% | 0.0% |
As Black against 1.d4 (89 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 77 | 86.5% | 49.4% |
| g6 | 4 | 4.5% | 50.0% |
| c5 | 4 | 4.5% | 50.0% |
| d5 | 3 | 3.4% | 0.0% |
| d6 | 1 | 1.1% | 0.0% |
Arnor Serafim Junior's chess games
All 611 games by Arnor Serafim Junior in the Chess.ceo database (Nov 2009 - 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: 232 wins, 119 draws, 260 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A39 | English Opening | 68 | 38/5/25 | 55.9% |
| A07 | Réti Opening | 65 | 17/15/33 | 26.2% |
| A29 | English Opening: Reverse Sicilian | 50 | 29/7/14 | 58.0% |
| A36 | English Opening: Symmetrical | 27 | 9/7/11 | 33.3% |
| A26 | Modern Defense | 19 | 6/7/6 | 31.6% |
| A26 | Réti Opening: Symmetrical Defense | 15 | 6/2/7 | 40.0% |
| A07 | King's Indian Attack | 9 | 5/1/3 | 55.6% |
| E06 | Catalan | 9 | 1/4/4 | 11.1% |
| A12 | English Opening: Slav Setup | 8 | 2/0/6 | 25.0% |
| A10 | English Opening: Dutch Defense | 6 | 2/1/3 | 33.3% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B42 | Sicilian | 101 | 38/20/43 | 37.6% |
| A48 | Indian Defense | 35 | 13/7/15 | 37.1% |
| B23 | Sicilian: Closed | 14 | 6/2/6 | 42.9% |
| E94 | King's Indian Defense: Orthodox Variation | 11 | 4/2/5 | 36.4% |
| A22 | English Opening | 11 | 2/5/4 | 18.2% |
| B22 | Sicilian: Alapin | 10 | 1/3/6 | 10.0% |
| B49 | Sicilian: Taimanov | 10 | 1/2/7 | 10.0% |
| D10 | Slav Defense | 9 | 3/1/5 | 33.3% |
| A48 | London System | 8 | 1/5/2 | 12.5% |
| A70 | Benoni Defense | 7 | 4/0/3 | 57.1% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Mar 2016 | David Borensztajn | 2,301 | 7th Joao Pessoa Fischer Memorial | A12 |
| Jan 2014 | Eduardo da Costa Marra | 2,253 | 17th Sao Paulo Hebraica Open | A11 |
| Jul 2013 | Andrey M. Souza Neves | 2,172 | 3rd Maringa Open | A26 |
| Feb 2014 | Acyr Rogerio Calcado | 2,155 | Curitiba CC 76 Anniversary | B42 |
| Jun 2013 | Namyr Carlos Souza Filho | 2,139 | Vitoria Cup | A15 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| ch-Pan American Amateur | 2015 | 20 | 11.5 | 1,825 |
| ch-BRA Amateur U2000 | 2019 | 20 | 10.5 | 1,900 |
| ch-BRA Amateur | 2015 | 17 | 10 | 1,858 |
| ch-Pan American U2000 | 2024 | 16 | 7 | 1,786 |
| Caioba Telecom Open | 2018 | 16 | 9 | 1,913 |
| ch-Pan American Seniors 50 | 2023 | 14 | 3.5 | 1,780 |
| ch-BRA Seniors 50+ | 2019 | 12 | 6 | 1,795 |
| Pocos de Caldas Open | 2018 | 12 | 5.5 | 1,794 |
Interactive opening tree from all 611 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Arnor Serafim Junior's chess games?
611 games by Arnor Serafim Junior, from Nov 2009 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 Arnor Serafim Junior has played.
What does Arnor Serafim Junior play on the first move as White?
Across 278 games with White in our database, Arnor Serafim Junior opens with 1.c4 (55% of games), 1.Nf3 (42% of games), 1.d4 (2% of games). Against 1.e4 as Black, Arnor Serafim Junior answers 1...c5 (97% of games), 1...Nf6 (2% of games), 1...d6 (1% of games). Against 1.d4: 1...Nf6 (87% of games), 1...g6 (4% of games), 1...c5 (4% of games).
What openings does Arnor Serafim Junior play as White?
As White, Arnor Serafim Junior's most-played openings in our database are: English Opening (68 games, 55.9% win rate); Réti Opening (65 games, 26.2% win rate); English Opening: Reverse Sicilian (50 games, 58.0% win rate). The full breakdown of 311 games with White is in the table above.
What openings does Arnor Serafim Junior play as Black?
As Black, Arnor Serafim Junior most often plays: Sicilian (101 games, 37.6% win rate); Indian Defense (35 games, 37.1% win rate); Sicilian: Closed (14 games, 42.9% win rate). See the table above for the top ten Black openings across 300 games.
What is Arnor Serafim Junior's FIDE rating?
Arnor Serafim Junior is currently rated 1,728 in classical chess, 1,850 in rapid and 1,845 in blitz. Peak classical rating: 1,978 (Jan 2010).
How many games has Arnor Serafim Junior played?
Our database contains 611 games by Arnor Serafim Junior, covering Nov 2009 to Oct 2026. Overall record: 232 wins, 119 draws, 260 losses (38.0% win rate).
How do I prepare against Arnor Serafim Junior?
611 games by Arnor Serafim 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.