Leyden Division

The OHL's Leyden Division was formed in 1975 as the league was split up into two divisions, the other being the Emms Division. The division existed from 19 seasons until 1994. It is the fore-runner of the OHL's East Division.

Division lineups

1975–1981

• Kingston Canadians
• Oshawa Generals
• Ottawa 67's
• Peterborough Petes
• Sault Ste. Marie Greyhounds
• Sudbury Wolves

Changes from the 1974–1975 season

• The Leyden Division is formed as a result of OHL realignment.
• The Kingston Canadians, Oshawa Generals, Ottawa 67's, Peterborough Petes, Sault Ste. Marie Greyhounds and Sudbury Wolves enter the division.

1981–1988

• Belleville Bulls
• Cornwall Royals
• Kingston Canadians
• Oshawa Generals
• Ottawa 67's
• Peterborough Petes
• Toronto Marlboros

Changes from the 1980–1981 season

• The Sault Ste. Marie Greyhounds and Sudbury Wolves join the Emms Division.
• The Toronto Marlboros join the division from the Emms Division.
• The Cornwall Royals join the OHL from the QMJHL and are placed in the division.
• The Belleville Bulls are an expansion team placed in the division.

1988–1989

• Belleville Bulls
• Cornwall Royals
• Kingston Raiders
• Oshawa Generals
• Ottawa 67's
• Peterborough Petes
• Toronto Marlboros

Changes from the 1987–1988 season

• The Kingston Canadians are renamed to the Kingston Raiders.

1989–1990

• Belleville Bulls
• Cornwall Royals
• Dukes of Hamilton
• Kingston Frontenacs
• Oshawa Generals
• Ottawa 67's
• Peterborough Petes

Changes from the 1988–1989 season

• The Kingston Canadians are renamed to the Kingston Frontenacs.
• The Toronto Marlboros relocate to Hamilton, Ontario and are renamed the Dukes of Hamilton.

1990–1992

• Belleville Bulls
• Cornwall Royals
• Kingston Frontenacs
• North Bay Centennials
• Oshawa Generals
• Ottawa 67's
• Peterborough Petes
• Sudbury Wolves

Changes from the 1989–1990 season

• The Dukes of Hamilton join the Emms Division.
• The North Bay Centennials and Sudbury Wolves join the division from the Emms Division.

1992–1994

• Belleville Bulls
• Kingston Frontenacs
• Newmarket Royals
• North Bay Centennials
• Oshawa Generals
• Ottawa 67's
• Peterborough Petes
• Sudbury Wolves

Changes from the 1991–1992 season

• The Cornwall Royals relocate to Newmarket, Ontario and are renamed the Newmarket Royals.

After the 1993–1994 season

The league was reformatted into three divisions:

• East Division
• Central Division
• West Division

Regular season Division Champions

• 1976 - Sudbury Wolves (47–11–8, 102 pts)
• 1977 - Ottawa 67's (38–23–5, 81 pts)
• 1978 - Ottawa 67's (43–18–7, 93 pts)
• 1979 - Peterborough Petes (46–19–3, 95 pts)
• 1980 - Peterborough Petes (47–20–1, 95 pts)
• 1981 - Sault Ste. Marie Greyhounds (47–19–2, 96 pts)
• 1982 - Ottawa 67's (47–19–2, 96 pts)
• 1983 - Ottawa 67's (46–21–3, 95 pts)
• 1984 - Ottawa 67's (50–18–2, 102 pts)
• 1985 - Peterborough Petes (42–20–4, 88 pts)
• 1986 - Peterborough Petes (45–19–2, 92 pts)
• 1987 - Oshawa Generals (49–14–3, 101 pts)
• 1988 - Peterborough Petes (44–17–5, 93 pts)
• 1989 - Peterborough Petes (42–22–2, 86 pts)
• 1990 - Oshawa Generals (42–20–4, 88 pts)
• 1991 - Oshawa Generals (47–13–6, 100 pts)
• 1992 - Peterborough Petes (41–18–7, 89 pts)
• 1993 - Peterborough Petes (46–15–5, 97 pts)
• 1994 - North Bay Centennials (46–15–5, 97 pts)

Playoff Division Champions

• 1976 - Sudbury Wolves
• 1977 - Ottawa 67's
• 1978 - Peterborough Petes
• 1979 - Peterborough Petes
• 1980 - Peterborough Petes
• 1981 - Sault Ste. Marie Greyhounds
• 1982 - Ottawa 67's
• 1983 - Oshawa Generals
• 1984 - Ottawa 67's
• 1985 - Peterborough Petes
• 1986 - Belleville Bulls
• 1987 - Oshawa Generals
• 1988 - Peterborough Petes
• 1989 - Peterborough Petes
• 1990 - Oshawa Generals
• 1991 - Oshawa Generals
• 1992 - North Bay Centennials
• 1993 - Peterborough Petes
• 1994 - North Bay Centennials

J. Ross Robertson Cup winners produced

1. 1977 - Ottawa 67's
2. 1978 - Peterborough Petes
3. 1979 - Peterborough Petes
4. 1980 - Peterborough Petes
5. 1983 - Oshawa Generals
6. 1984 - Ottawa 67's
7. 1987 - Oshawa Generals
8. 1989 - Peterborough Petes
9. 1990 - Oshawa Generals
10. 1993 - Peterborough Petes
11. 1994 - North Bay Centennials

Memorial Cup winners produced

1. 1979 - Peterborough Petes
2. 1984 - Ottawa 67's
3. 1990 - Oshawa Generals

See also

• Emms Division
• East Division (OHL)
• Central Division (OHL)
• West Division (OHL)
• Midwest Division (OHL)