Jan Keizer - Football referee
| UEFA Cup 1987 - 1988 | ||||
| final (2nd leg) | Leverkusen | Espanyol | 1988-05-18 | 3 - 0 |
| 1/4 finals | Werder Bremen | Hellas Verona | 1988-03-16 | 1 - 1 |
| 2nd round | Crvena Zvezda | Club Brugge | 1987-10-21 | 3 - 1 |
| friendly | ||||
| Scotland | Hungary | 1987-09-09 | 2 - 0 | |
| Ireland | Italy | 1985-02-05 | 1 - 2 | |
| Belgium | Austria | 1978-03-22 | 1 - 0 | |
| Austria | Hungary | 1976-10-13 | 2 - 4 | |
| Germany DR | Norway | 1974-05-23 | 1 - 0 | |
| Germany DR | Norway | 1974-05-22 | 1 - 0 | |
| France | Argentina | 1974-05-18 | 0 - 1 | |
| European Cup 1986 - 1987 | ||||
| 1/2 finals | Porto | Dynamo Kyiv | 1987-04-08 | 2 - 1 |
| Euro 1988 qualifiers | ||||
| Italy | Portugal | 1987-12-05 | 3 - 0 | |
| Ireland | Bulgaria | 1987-10-14 | 2 - 0 | |
| Spain | Romania | 1986-11-12 | 1 - 0 | |
| UEFA Cup 1986 - 1987 | ||||
| 1/4 finals | Göteborg | Internazionale | 1987-03-04 | 0 - 0 |
| 3rd round | Hajduk | Dundee United | 1986-12-10 | 0 - 0 |
| 2nd round | Györ | Torino | 1986-11-05 | 1 - 1 |
| 1st round | Boavista FC | Fiorentina | 1986-10-02 | 1 - 0 |
| WC 1986 | ||||
| round of 16 | Denmark | Spain | 1986-06-18 | 1 - 5 |
| group stage | Italy | Argentina | 1986-06-05 | 1 - 1 |
| UEFA Cup 1985 - 1986 | ||||
| 1/2 finals | Real Madrid | Internazionale | 1986-04-16 | 5 - 1 |
| 3rd round | Sporting | Athletic Bilbao | 1985-12-11 | 3 - 0 |
| 2nd round | Bohemians Prague | Köln FC | 1985-11-06 | 2 - 4 |
| European Cup 1985 - 1986 | ||||
| 1/4 finals | Juventus | Barcelona | 1986-03-19 | 1 - 1 |
| WC 1986 qualifiers - Europe | ||||
| Germany DR | Bulgaria | 1985-11-16 | 2 - 1 | |
| Wales | Scotland | 1985-09-10 | 1 - 1 | |
| Wales | Spain | 1985-04-30 | 3 - 0 | |
| Ireland | Soviet Union | 1984-09-12 | 1 - 0 | |
| European Cup 1984 - 1985 | ||||
| 1/2 finals | Liverpool | Panathinaikos | 1985-04-10 | 4 - 0 |
| 1/4 finals | Bordeaux | Dnipro | 1985-03-06 | 1 - 1 |
| 2nd round | Austria Wien | Dynamo Berlin | 1984-11-07 | 2 - 1 |
| UEFA Cup 1984 - 1985 | ||||
| 3rd round | Tottenham Hotspur | Bohemians Prague | 1984-11-28 | 2 - 0 |
| Olympic Games 1984 | ||||
| final | France OT | Brazil OT | 1984-08-11 | 2 - 0 |
| group stage | Chile OT | France OT | 1984-08-02 | 1 - 1 |
| group stage | Yugoslavia OT | Cameroon OT | 1984-07-30 | 2 - 1 |
| Euro 1984 | ||||
| group stage | Germany FR | Romania | 1984-07-17 | 2 - 1 |
| European Cup 1983 - 1984 | ||||
| 2nd round | Dinamo Bucuresti | Hamburger SV | 1983-10-19 | 3 - 0 |
| Euro 1984 qualifiers | ||||
| Soviet Union | Poland | 1983-10-09 | 2 - 0 | |
| UEFA Cup 1983 - 1984 | ||||
| 3rd round | Bayern Munich | Tottenham Hotspur | 1983-11-23 | 1 - 0 |
| 1st round | Trabzonspor | Internazionale | 1983-09-14 | 1 - 0 |
| WC 1983 u20 | ||||
| 1/2 finals | Korea Republic u20 | Brazil u20 | 1983-06-15 | 1 - 2 |
| 1st stage | Korea Republic u20 | Mexico u20 | 1983-06-05 | 2 - 1 |
| UEFA Cup 1982 - 1983 | ||||
| 3rd round | Universitatea Craiova | Bordeaux | 1982-12-08 | 2 - 0 |
| European Cup 1982 - 1983 | ||||
| 1st round | Dynamo Berlin | Hamburger SV | 1982-09-15 | 1 - 1 |
| WC 1982 qualifiers - Europe | ||||
| Soviet Union | Wales | 1981-11-18 | 3 - 0 | |
| England | Switzerland | 1980-11-19 | 2 - 1 | |
| UEFA Cup 1980 - 1981 | ||||
| 2nd round | Magdeburg SC | Torino | 1980-11-05 | 1 - 0 |
| European Cup2 1980 - 1981 | ||||
| 1/4 finals | Benfica | Fortuna Düsseldorf | 1981-03-18 | 1 - 0 |
| 1st round | West Ham United | Real Madrid Castilla | 1980-10-01 | 5 - 1 |
| UEFA Cup 1979 - 1980 | ||||
| 2nd round | Lokomotiv Sofia | Monaco | 1979-10-24 | 4 - 2 |
| European Cup2 1979 - 1980 | ||||
| 1/4 finals | Rijeka | Juventus | 1980-03-05 | 0 - 0 |
| 1st round | Wacker Innsbruck | Lokomotive Kosice | 1979-09-19 | 1 - 2 |
| Olympic Games 1980 qualifiers | ||||
| Ireland OT | Norway OT | 1979-05-18 | 0 - 0 | |
| European Cup 1978 - 1979 | ||||
| 1/4 finals | Dynamo Dresden | Austria Wien | 1979-03-21 | 1 - 0 |
| Euro 1980 qualifiers | ||||
| Germany FR | Wales | 1979-10-17 | 5 - 1 | |
| Spain | Romania | 1978-11-15 | 1 - 0 | |
| European Cup2 1978 - 1979 | ||||
| 2nd round | Shamrock Rovers | Banik Ostrava | 1978-11-01 | 1 - 3 |
| 1st round | Aberdeen | Marek Dupniza | 1978-09-27 | 3 - 0 |
| European Cup2 1977 - 1978 | ||||
| 1st round | Reipas Lahti | Hamburger SV | 1977-09-28 | 2 - 5 |
| WC 1978 qualifiers - Asia/Oceania | ||||
| final round | Australia | Korea Republic | 1977-08-28 | 2 - 1 |
| WC 1978 qualifiers | ||||
| Australia | Korea Republic | 1977-08-28 | 2 - 1 | |
| UEFA Cup 1976 - 1977 | ||||
| 1st round | Brann | QPR | 1976-09-29 | 0 - 7 |
| European Cup 1974 - 1975 | ||||
| 1st round | Leeds United | Zurich | 1974-09-18 | 4 - 1 |
| UEFA Cup 1972 - 1973 | ||||
| 1st round | Grasshopper | Nimes Olympique | 1972-09-24 | 2 - 1 |
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