Leo Horn - Football referee
| Fairs Cup 1965 - 1966 | ||||
| 3rd round | Leeds United | Valencia | 1966-02-02 | 1 - 1 |
| WC 1966 qualifiers - Europe | ||||
| Portugal | Czechoslovakia | 1965-10-31 | 0 - 0 | |
| European Cup 1965-1966 | ||||
| preliminary round | Drumcondra | Vorwärts Berlin | 1965-09-15 | 1 - 0 |
| European Cup2 1964 - 1965 | ||||
| 1/2 finals | Real Zaragoza | West Ham United | 1965-04-28 | 1 - 1 |
| European Cup 1964-1965 | ||||
| 1st round | Glasgow Rangers | Rapid Wien | 1964-11-18 | 1 - 0 |
| preliminary round | Shamrock Rovers | Rapid Wien | 1964-09-30 | 0 - 2 |
| Copa Libertadores 1964 | ||||
| final (1st leg) | Nacional (UR) | Independiente | 1964-08-06 | 0 - 0 |
| Copa de las Naciones | ||||
| Argentina | England | 1964-06-06 | 1 - 0 | |
| European Cup2 1963 - 1964 | ||||
| preliminaries | Shelbourne | Barcelona | 1963-09-24 | 0 - 2 |
| European Cup2 1962 - 1963 | ||||
| 1/4 finals | Tottenham Hotspur | Slovan Bratislava | 1963-03-14 | 6 - 0 |
| Copa Libertadores 1962 | ||||
| final (play-off) | Peñarol | Santos FC | 1962-08-30 | 0 - 3 |
| WC 1962 | ||||
| 1/4 finals | Chile | Soviet Union | 1962-06-10 | 2 - 1 |
| group stage | Germany FR | Switzerland | 1962-06-03 | 2 - 1 |
| group stage | Hungary | England | 1962-05-31 | 2 - 1 |
| European Cup 1961-1962 | ||||
| final | Benfica | Real Madrid | 1962-05-02 | 5 - 3 |
| 1/4 finals | Glasgow Rangers | Standard | 1962-02-14 | 2 - 0 |
| British Championship | ||||
| Scotland | England | 1964-04-11 | 1 - 0 | |
| England | Scotland | 1963-04-06 | 1 - 2 | |
| Scotland | England | 1962-04-14 | 2 - 0 | |
| European Cup2 1961 - 1962 | ||||
| preliminaries | Motor Jena | Swansea City | 1961-10-18 | 5 - 1 |
| Fairs Cup 1961 - 1962 | ||||
| West Berlin XI | Barcelona | 1961-09-20 | 1 - 0 | |
| WC 1962 qualifiers - Europe | ||||
| Spain | Wales | 1961-05-18 | 1 - 1 | |
| Northern Ireland | Germany FR | 1960-10-26 | 3 - 4 | |
| European Cup 1960-1961 | ||||
| preliminary round | Legia Warszawa | Aarhus GF | 1960-10-05 | 1 - 0 |
| European Cup 1958-1959 | ||||
| 1/4 finals | Young Boys | Wismut SC | 1959-04-01 | 3 - 1 |
| 1/4 finals | Schalke 04 | Atlético de Madrid | 1959-03-18 | 1 - 1 |
| 1st round (play-off) | Schalke 04 | Kobenhavn | 1958-10-01 | 3 - 1 |
| preliminaries (play-off) | Schalke 04 | KB | 1958-10-01 | 3 - 1 |
| European Cup 1956-1957 | ||||
| final | Real Madrid | Fiorentina | 1957-05-30 | 2 - 0 |
| 1/2 finals | Real Madrid | Manchester United | 1957-04-11 | 3 - 1 |
| 1st round | Manchester United | Dortmund | 1956-10-17 | 3 - 2 |
| preliminaries | Anderlecht | Manchester United | 1956-09-12 | 0 - 2 |
| European Cup 1955-1956 | ||||
| 1/4 finals | AC Milan | Rapid Wien | 1956-02-12 | 7 - 2 |
| friendly | ||||
| Sweden | Germany FR | 1963-11-03 | 2 - 1 | |
| Israel | Brazil | 1963-05-19 | 0 - 5 | |
| England | Brazil | 1963-05-08 | 1 - 1 | |
| Germany FR | Uruguay | 1962-04-11 | 3 - 0 | |
| Denmark | Greece | 1960-07-03 | 7 - 2 | |
| Switzerland | Chile | 1960-04-06 | 4 - 2 | |
| Israel | Poland | 1959-11-29 | 1 - 1 | |
| Israel | France | 1957-10-08 | 4 - 5 | |
| Hungary | France | 1957-10-06 | 2 - 0 | |
| Switzerland | Italy | 1956-11-11 | 1 - 1 | |
| Belgium | Hungary | 1956-06-03 | 5 - 4 | |
| Sweden | England | 1956-05-16 | 0 - 0 | |
| Saarland | Switzerland | 1956-05-01 | 1 - 1 | |
| Scotland | Hungary | 1954-12-08 | 2 - 4 | |
| Sweden | Austria | 1954-10-31 | 2 - 1 | |
| Hungary | Switzerland | 1954-10-10 | 3 - 0 | |
| Austria | Yugolsavia | 1954-10-03 | 2 - 2 | |
| Wales | Yugolsavia | 1954-09-22 | 1 - 3 | |
| Switzerland | Uruguay | 1954-05-23 | 3 - 3 | |
| England | Hungary | 1953-11-25 | 3 - 6 | |
| England | Belgium | 1952-11-26 | 5 - 0 | |
| Belgium | Luxembourg | 1951-11-25 | 2 - 0 | |
| WC 1954 qualifiers - Europe | ||||
| Italy | Egypt | 1954-01-24 | 5 - 1 | |
| Saarland | Norway | 1953-11-08 | 0 - 0 | |
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