| William Quiros Born: Alajuela, Costa Rica, October 10, 1941 |
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Team | League | Year | Num | Pos | Games | Goals | Assists | Points | Citizen |
| Oakland Clippers | NPSL | 67 | 10 | F | 6 | 0 | 2 | 2 | Costa Rica | |
| Oakland Clippers | NASL | 68 | 10 | F | 25 | 3 | 0 | 6 | Costa Rica | |
| Kansas City Spurs | NASL | 69 | F | 0 | Costa Rica | |||||
| San Jose Earthquakes | NASL | 75 | 15 | F | 1 | 0 | 0 | 0 | Costa Rica | |
| Oakland Clippers 1967 Home |
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| Oakland Clippers 1967 Road |
 Dennis Violett (6), Mario Baesso (14), Nelio Dos Santos (11), William Quiros (10) Baltimore Bays vs. Oakland Clippers |
| Oakland Clippers 1968 Home |
| Oakland Clippers 1968 Road |
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| California Clippers 1969 Exhibition Home |
 Clippers vs. Manchester City |
| California Clippers 1969 Exhibition Road |
 Clippers vs. Dynamo Kiev |
| Kansas City Spurs 1969 Home |
| Kansas City Spurs 1969 Road |
| San Jose Earthquakes 1975 Home |
| San Jose Earthquakes 1975 Road |