Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Skonto | 3 | 1 | 0 | 2 | 0 | 0 | 1 | 0 |
 Shamrock Rovers | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
 Legia Warszawa | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Žalgiris | 2 | 0 | 1 | 1 | 1 | 0 | 0 | 0 |
 Bray Wanderers | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
 Drogheda United | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
 Dundalk | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 Dinamo Minsk | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Jeunesse d'Esch | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 Marítimo | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 Galway United | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Cork City | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Bohemians | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Limerick | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Shelbourne | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 ÍBV | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Sligo Rovers | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Derry City | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 St Patrick's | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 UCD | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
Ger O'Brien has scored 4 goals in 170 professional appearances across 2 clubs. Among the clubs he has represented — St Patrick's, Bohemians — Ger O'Brien was most prolific at Bohemians, where he scored 2 goals in 36 appearances. Ger O'Brien stands 179 cm tall, weighs 73 kg.
