The Ed Chynoweth Cup is an ice hockey club championship trophy awarded to the playoff champion of the Western Hockey League (WHL). Originally called the President's Cup when the league was founded in 1966, the trophy was renamed in 2007 to honour Ed Chynoweth's long service to junior ice hockey in Canada. The WHL champion earns a berth into the Memorial Cup tournament, Canada's major junior hockey championship. The Kamloops Blazers have won the most WHL championships with six, followed by the Medicine Hat Tigers with five. The Spokane Chiefs were the first team to win the renamed trophy in the 2007–08 WHL season. The current (2023–24) holders of the Ed Chynoweth Cup are the Moose Jaw Warriors.

The Western Hockey League was founded in 1966 by seven teams from Saskatchewan and Alberta who were hoping to improve the quality of junior hockey in western Canada. Despite gaining approval from the governing bodies of both provinces, the Canadian Amateur Hockey Association (CAHA) objected to the formation of the interprovincial league, refusing to sanction the circuit and suspending all players and officials who participated in the league from participation in any CAHA league or event. Declared an "outlaw league" by the CAHA, the WHL's founders chose to play on, though the league was ruled ineligible to participate in the Memorial Cup, Canada's national junior championship.

The first President's Cup champion was the Moose Jaw Canucks in 1967. In 1971, CAHA reorganized the top level of junior hockey into two tiers, sanctioning the WHL as the top league in western Canada and one of three leagues that formed the Major Junior tier, along with the Ontario Hockey Association—now the Ontario Hockey League (OHL)—and the Quebec Major Junior Hockey League—now the Quebec Maritimes Junior Hockey League (QMJHL). Together, these three leagues form the Canadian Hockey League (CHL). The 1971 WHL champion Edmonton Oil Kings faced the Quebec Remparts in the 1972 Memorial Cup final, which nearly failed to materialize as the OHA and QMJHL initially refused to face the western champion. The Oil Kings were ultimately defeated by Quebec in an abbreviated best-of-three series, as opposed to the normal best-of-seven. Three years later, in 1974, the Regina Pats became the first WHL champion to win the national title.

The New Westminster Bruins emerged as the first dynasty in WHL history, winning four consecutive championships between 1975 and 1978, along with two Memorial Cups in 1977 and 1978. In 1976, the Portland Winter Hawks became the first American-based team in the WHL, and six years later, the 1981–82 Winter Hawks recorded more firsts, becoming the first American team to win the President's Cup and the first American team to compete for the Memorial Cup. One year later, the Winter Hawks won the 1983 Memorial Cup to become the first American champions, and the first to win the Memorial Cup without winning its own league title; Portland participated by virtue of hosting the tournament despite losing the WHL final to the Lethbridge Broncos.

On December 30, 1986, four members of the Swift Current Broncos—Scott Kruger, Trent Kresse, Brent Ruff, and Chris Mantyka—were killed when the team bus crashed outside Swift Current. The community rallied around the team, and less than three years later, the Broncos emerged as the top team in the CHL. Featuring Scott Kruger's younger brothers Darren and Trevor, the 1988–89 Broncos became the first team in WHL history to sweep their way through the playoffs, winning the President's Cup without losing a single game in the post-season. The Broncos faced the host Saskatoon Blades in the 1989 Memorial Cup final, defeating their provincial rivals in the first all-WHL national championship. The Kamloops Blazers dominated the WHL in the early 1990s, capturing four league championships between 1990 and 1995 and three Memorial Cups to cap a period where WHL teams won seven Memorial Cup championships in a nine-year period between 1987 and 1995.

In 2007, the league renamed the championship trophy the Ed Chynoweth Cup in honour of Ed Chynoweth's long tenure with the league. Chynoweth had served as president of both the WHL and CHL, from 1972 and 1975 respectively, until leaving both posts in 1995 to form the Edmonton Ice. He remained with the franchise through its transfer to Kootenay and until his death in 2008. Chynoweth was described by OHL commissioner David Branch as being "the architect of the Canadian Hockey League as we know it today". Chynoweth was posthumously elected to the Hockey Hall of Fame in 2008.

• Number in parentheses denotes total championships won to that point

Season	Winning team	Finalist	Games	Memorial Cup result
1966–67	Moose Jaw Canucks (1)	Regina Pats	4–1	Ineligible
1967–68	Estevan Bruins (1)	Flin Flon Bombers	4–0–1	Estevan lost final
1968–69	Flin Flon Bombers (1)	Edmonton Oil Kings	4–2	Ineligible
1969–70	Flin Flon Bombers (2)	Edmonton Oil Kings	4–0	Ineligible
1970–71	Edmonton Oil Kings (1)	Flin Flon Bombers	4–1–1	Edmonton lost final
1971–72	Edmonton Oil Kings (2)	Regina Pats	4–1	Edmonton finished third
1972–73	Medicine Hat Tigers (1)	Saskatoon Blades	3–0–2	Medicine Hat finished third
1973–74	Regina Pats (1)	Calgary Centennials	4–0	Regina won Memorial Cup
1974–75	New Westminster Bruins (1)	Saskatoon Blades	4–3	New Westminster lost final
1975–76	New Westminster Bruins (2)	Saskatoon Blades	4–2–1	New Westminster lost final
1976–77	New Westminster Bruins (3)	Brandon Wheat Kings	4–1	New Westminster won Memorial Cup
1977–78	New Westminster Bruins (4)	Billings Bighorns	4–0	New Westminster won Memorial Cup
1978–79	Brandon Wheat Kings (1)	Portland Winter Hawks	4–2	Brandon lost final
1979–80	Regina Pats (2)	Victoria Cougars	4–1	Regina finished third
1980–81	Victoria Cougars (1)	Calgary Wranglers	4–3	Victoria finished third
1981–82	Portland Winter Hawks (1)	Regina Pats	4–1	Portland finished third
1982–83	Lethbridge Broncos (1)	Portland Winter Hawks	4–1	Portland won Memorial Cup Lethbridge finished fourth
1983–84	Kamloops Junior Oilers (1)	Regina Pats	4–3	Kamloops finished third
1984–85	Prince Albert Raiders (1)	Kamloops Blazers	4–0	Prince Albert won Memorial Cup
1985–86	Kamloops Blazers (2)	Medicine Hat Tigers	4–1	Kamloops finished third Portland finished fourth
1986–87	Medicine Hat Tigers (2)	Portland Winter Hawks	4–3	Medicine Hat won Memorial Cup
1987–88	Medicine Hat Tigers (3)	Kamloops Blazers	4–2	Medicine Hat won Memorial Cup
1988–89	Swift Current Broncos (1)	Portland Winterhawks	4–0	Swift Current won Memorial Cup Saskatoon lost final
1989–90	Kamloops Blazers (3)	Lethbridge Hurricanes	4–1	Kamloops finished fourth
1990–91	Spokane Chiefs (1)	Lethbridge Hurricanes	4–0	Spokane Won Memorial Cup
1991–92	Kamloops Blazers (4)	Saskatoon Blades	4–3	Kamloops won Memorial Cup Seattle finished third
1992–93	Swift Current Broncos (2)	Portland Winter Hawks	4–3	Swift Current finished fourth
1993–94	Kamloops Blazers (5)	Saskatoon Blades	4–3	Kamloops Won Memorial Cup
1994–95	Kamloops Blazers (6)	Brandon Wheat Kings	4–2	Kamloops won Memorial Cup Brandon finished third
1995–96	Brandon Wheat Kings (2)	Spokane Chiefs	4–1	Brandon finished third
1996–97	Lethbridge Hurricanes (1)	Seattle Thunderbirds	4–0	Lethbridge lost final
1997–98	Portland Winter Hawks (2)	Brandon Wheat Kings	4–0	Portland won Memorial Cup Spokane finished third
1998–99	Calgary Hitmen (1)	Kamloops Blazers	4–1	Calgary lost final
1999–2000	Kootenay Ice (1)	Spokane Chiefs	4–2	Kootenay finished fourth
2000–01	Red Deer Rebels (1)	Portland Winter Hawks	4–1	Red Deer won Memorial Cup Regina finished third
2001–02	Kootenay Ice (2)	Red Deer Rebels	4–2	Kootenay won Memorial Cup
2002–03	Kelowna Rockets (1)	Red Deer Rebels	4–2	Kelowna finished third
2003–04	Medicine Hat Tigers (4)	Everett Silvertips	4–0	Kelowna won Memorial Cup Medicine Hat finished third
2004–05	Kelowna Rockets (2)	Brandon Wheat Kings	4–1	Kelowna finished fourth
2005–06	Vancouver Giants (1)	Moose Jaw Warriors	4–0	Vancouver finished third
2006–07	Medicine Hat Tigers (5)	Vancouver Giants	4–3	Vancouver won Memorial Cup Medicine Hat lost final
2007–08	Spokane Chiefs (2)	Lethbridge Hurricanes	4–0	Spokane won Memorial Cup
2008–09	Kelowna Rockets (3)	Calgary Hitmen	4–2	Kelowna lost final
2009–10	Calgary Hitmen (2)	Tri-City Americans	4–1	Brandon lost final Calgary finished third
2010–11	Kootenay Ice (3)	Portland Winterhawks	4–1	Kootenay finished third
2011–12	Edmonton Oil Kings (1)	Portland Winterhawks	4–3	Edmonton finished fourth
2012–13	Portland Winterhawks (3)	Edmonton Oil Kings	4–2	Portland lost final Saskatoon finished fourth
2013–14	Edmonton Oil Kings (2)	Portland Winterhawks	4–3	Edmonton won Memorial Cup
2014–15	Kelowna Rockets (4)	Brandon Wheat Kings	4–0	Kelowna lost final
2015–16	Brandon Wheat Kings (3)	Seattle Thunderbirds	4–1	Brandon finished fourth Red Deer lost semifinal
2016–17	Seattle Thunderbirds (1)	Regina Pats	4–2	Seattle finished fourth
2017–18	Swift Current Broncos (3)	Everett Silvertips	4–2	Swift Current finished fourth Regina lost final
2018–19	Prince Albert Raiders (2)	Vancouver Giants	4–3	Prince Albert finished fourth
2019–20	WHL playoffs cancelled due to the COVID-19 pandemic — Ed Chynoweth Cup not awarded
2020–21	WHL playoffs cancelled due to the COVID-19 pandemic — Ed Chynoweth Cup not awarded
2021–22	Edmonton Oil Kings (3)	Seattle Thunderbirds	4–2	Edmonton finished fourth
2022–23	Seattle Thunderbirds (2)	Winnipeg Ice	4–1	Seattle lost final
2023–24	Moose Jaw Warriors (1)	Portland Winterhawks	4–0	Moose Jaw lost semifinal

Team	Won	Lost	Years Won	Years Lost	Finals Appearances
Kamloops Blazers	6	3	1983–84, 1985–86, 1989–90, 1991–92, 1993–94, 1994–95	1984–85, 1987–88, 1998–99	9
Edmonton Oil Kings	5	3	1970–71, 1971–72, 2011–12, 2013–14, 2021–22	1968–69, 1969–70, 2012–13	8
Medicine Hat Tigers	5	1	1972–73, 1986–87, 1987–88, 2003–04, 2006–07	1985–86	6
New Westminster Bruins	4	0	1974–75, 1975–76, 1976–77, 1977–78	—	4
Kelowna Rockets	4	0	2002–03, 2004–05, 2008–09, 2014–15	—	4
Portland Winterhawks	3	10	1981–82, 1997–98, 2012–13	1978–79, 1982–83, 1986–87, 1988–89, 1992–93, 2000–01, 2010–11, 2011–12, 2013–14, 2023–24	13
Brandon Wheat Kings	3	5	1978–79, 1995–96, 2015–16	1976–77, 1994–95, 1997–98, 2004–05, 2014–15	8
Swift Current Broncos	3	0	1988–89, 1992–93, 2017–18	—	3
Kootenay Ice	3	0	1999–2000, 2001–02, 2010–11	—	3
Regina Pats	2	5	1973–74, 1979–80	1966–67, 1971–72, 1981–82, 1983–84, 2016–17	7
Seattle Thunderbirds	2	3	2016–17, 2022–23	1996–97, 2015–16, 2021–22	5
Flin Flon Bombers	2	2	1968–69, 1969–70	1967–68, 1970–71	4
Spokane Chiefs	2	2	1990–91, 2007–08	1995–96, 1999–2000	4
Calgary Hitmen	2	1	1998–99, 2009–10	2008–09	3
Prince Albert Raiders	2	0	1984–85, 2018–19	—	2
Lethbridge Hurricanes	1	3	1996–97	1989–90, 1990–91, 2007–08	4
Red Deer Rebels	1	2	2000–01	2001–02, 2002–03	3
Vancouver Giants	1	2	2005–06	2006–07, 2018–19	3
Victoria Cougars	1	1	1980–81	1979–80	2
Moose Jaw Warriors	1	1	2023–24	2005–06	2
Moose Jaw Canucks	1	0	1966–67	—	1
Estevan Bruins	1	0	1967–68	—	1
Lethbridge Broncos	1	0	1982–83	—	1
Saskatoon Blades	0	5	—	1972–73, 1974–75, 1975–76, 1991–92, 1993–94	5
Everett Silvertips	0	2	—	2003–04, 2017–18	2
Calgary Centennials	0	1	—	1973–74	1
Billings Bighorns	0	1	—	1977–78	1
Calgary Wranglers	0	1	—	1980–81	1
Tri-City Americans	0	1	—	2009–10	1
Winnipeg Ice	0	1	—	2022–23	1

• J. Ross Robertson Cup (OHL championship)
• President's Cup (QMJHL championship)
• List of Memorial Cup champions

• In some playoff years, ties were possible, and are noted in win–loss–tie format
• The league did not receive official sanctioning by the Canadian Amateur Hockey Association until 1971, and thus was not eligible to compete for the Memorial Cup between 1967 and 1970. In spite of this, the 1968 Estevan Bruins did compete in the Memorial Cup final, the only team in the WHL's first four years permitted to do so.
• Portland qualified for the 1983 Memorial Cup as the host team.
• Portland qualified for the 1986 Memorial Cup as the host team after New Westminster withdrew as the host.
• Saskatoon qualified for the 1989 Memorial Cup as the host team.
• Seattle qualified for the 1992 Memorial Cup as the host team.
• Kamloops both hosted the 1995 Memorial Cup and qualified as the league winner. As the losing finalist, Brandon played as the WHL's second representative.
• Spokane qualified for the 1998 Memorial Cup as the host team.
• Regina qualified for the 2001 Memorial Cup as the host team.
• Kelowna qualified for the 2004 Memorial Cup as the host team.
• Vancouver qualified for the 2007 Memorial Cup as the host team.
• Brandon qualified for the 2010 Memorial Cup as the host team.
• Saskatoon qualified for the 2013 Memorial Cup as the host team.
• Kamloops' first title was won as the Junior Oilers, before being renamed the Blazers.
• The original Oil Kings moved to Portland in 1976; the team was revived via expansion in 2007.

General

• Lapp, Richard; Macaulay, Alec (1997). The Memorial Cup. Harbour Publishing. ISBN 1-55017-170-4.

Specific