Stanislav Ritvin vs Evan Z Rabin
34th World Open Philadelphia, PA USA round 2 2006.06.29
Alekhine Defense 1-0

Stanislav Ritvin vs Vyas Samir
29th World Open Philadelphia, PA USA round 4 2001.07.06
Sicilian Defense: Dragon Variation, Yugoslav Attack 1-0

Larry Kaufman vs Stanislav Ritvin
29th World Open Philadelphia, PA USA round 6 2001.07.07
English Opening: Anglo-Indian Defense, Flohr-Mikenas-Carls Variation, Nei Gambit 1-0