The 2003 Bolton Cup decided Eastern Canada's participant in the 2003 Allan Cup.
Qualified teams[]
- Cambridge Hornets (Renwick Cup champion)
- Lancaster Aquarius ThunderCats (Atlantic Cup champion)
Series[]
Best-of-3
- April 6: Lancaster Aquarius ThunderCats - Cambridge Hornets 5:3
- April 7: Cambridge Hornets - Lancaster Aquarius ThunderCats 8:1
- April 7: Lancaster Aquarius ThunderCats - Cambridge Hornets 1:0
Third game was actually just a 20-minutes sudden death period after game two. This was due to bad weather in the region. Lancaster won the sudden death period 1-0.
- Lancaster Aquarius ThunderCats move on to the 2003 Allan Cup.