Player profile

Lopez Vallejo, Sergio Andres

Standard: 1939 Rapid: 1990 Blitz: 1835 (last updated 2026-11-02)

FIDE ID: 144471351 (view FIDE profile)

Federation: COL Sex: M Birth Year: 2007 Age: 19

Title: — Women's title: — Other title: — FOA title: —

Games: 5 Wins: 3 (60%) Draws: 1 (20%) Losses: 1 (20%)

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Dossier

5 of 5 games analyzed.

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Openings

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As White 2 games 1W 1D 0L

Italian Game 1 game 1W 0D 0L

Classical Variation 1 game 1W 0D 0L

Giuoco Pianissimo 1 game 1W 0D 0L

Sicilian Defense 1 game 0W 1D 0L

Smith-Morra Gambit Accepted 1 game 0W 1D 0L

Paulsen Formation 1 game 0W 1D 0L

As Black 3 games 2W 0D 1L

Sicilian Defense 1 game 1W 0D 0L

Smith-Morra Gambit 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

London System, with Be2 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

King's Indian Defense 1 game 0W 0D 1L

Sämisch Variation 1 game 0W 0D 1L

Normal Defense 1 game 0W 0D 1L

Blunders Top 4 of 24

This player's costliest moves in analyzed games. Can you find the winning move?

2026.08.09 · 41. Rh5+ (−30.1% win chance) 1-0

Velasquez Ramirez, Juan Miguel

Lopez Vallejo, Sergio Andres

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2026.08.08 · 32... Qc7 (−26.6% win chance) 0-1

Lopez Vallejo, Sergio Andres

Osorio Ruiz, Juan Carlos

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2026.08.09 · 36. h4 (−18.2% win chance) 1-0

Velasquez Ramirez, Juan Miguel

Lopez Vallejo, Sergio Andres

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2026.08.08 · 28... d5 (−17.4% win chance) 0-1

Lopez Vallejo, Sergio Andres

Osorio Ruiz, Juan Carlos

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Games Showing all 5 games

Date	Event	Round	Opponent	Result	Accuracy %	First moves
2026.08.09	Round 7: Lopez Vallejo, Sergio Andres - Velasquez Ramirez, Juan Miguel	8.20	2026.08.09 Velasquez Ramirez, Juan Miguel (144422008) (1760)	1	90.40%	1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5
2026.08.08	Round 6: Osorio Ruiz, Juan Carlos - Lopez Vallejo, Sergio Andres	7.22	2026.08.08 Osorio Ruiz, Juan Carlos (144408285) (1747)	1	84.10%	1. e4 c5 2. d4 cxd4 3. c3 d6
2026.08.07	Round 5: Lopez Vallejo, Sergio Andres - Bettin Heredia, Julian	6.20	2026.08.07 Bettin Heredia, Julian (144462867) (1696)	½	93.50%	1. e4 c5 2. d4 cxd4 3. c3 dxc3
2026.08.07	Round 4: Rodriguez Buroz, Diego Azahel - Lopez Vallejo, Sergio Andres	5.23	2026.08.07 Rodriguez Buroz, Diego Azahel (3947602) (1789)	1	99.10%	1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7
2026.08.05	Round 8: Morales Garcia, Cristian Danilo - Lopez Vallejo, Sergio Andres	9.19	2026.08.05 Morales Garcia, Cristian Danilo (144463081) (1791)	0	89.70%	1. d4 Nf6 2. c4 g6 3. Nc3 Bg7