Championships
The Plymouth Whalers have won eight divisional titles, five of them consecutively. Plymouth has also won three Hamilton Spectator trophies and reached the OHL Championship Finals three times, winning during the 2006–07 season.
J. Ross Robertson Cup
OHL Champion
- 1999–2000 Finalists vs. Barrie Colts
- 2000–01 Finalists vs. Ottawa 67's
- 2006–07 Champions vs. Sudbury Wolves
Wayne Gretzky Trophy
Western Conference Playoff Champion
- 1999–2000, 2000–01 and 2006–07
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Hamilton Spectator Trophy
Season Champion
- 1998–99 51 wins, 4 ties, 106 pts
- 1999–2000 45 wins, 4 ties, 1 OTL, 95 pts
- 2001–02 39 wins, 12 ties, 2 OTL, 92 pts
Bumbacco Trophy
West Division Champion
- 1998–99, 1999–2000, 2000–01, 2001–02, 2002–03, 2005–06, 2006–07, 2011–12
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