Bangor City beat nine-man Rhyl to secure a place in next season's Europa League and at least 110,000 Euros.
Rhyl defender Peter Dogan was shown red after a clumsy challenge saw him receive a second booking, before Les Davies fired the Citizens in front.
Chris Jones doubled their advantage from the penalty spot following a handball by Matty Woodward.
Rhyl's Tom Donegan was sent-off in injury time for a wild two-footed challenge on Davies.
Bangor City: Jack Cudworth, Declan Walker, Chris Roberts, Michael Johnston, Anthony Miley, Chris Jones (Corey Jones 90'+2), Ryan Edwards, Robert Jones (Jamie McDaid 67'), Les Davies, Damian Allen, Sion Edwards (James Colbeck 88')
Subs not used: Nick Bould (gk), Joe Culshaw, Iolo Hughes, Caio Hywel
Rhyl FC: Alex Ramsay, Matty Woodward, Liam Benson (Tom Donegan 76'), Ryan Astles, Chris Rimmer, Paul McManus, Mark Cadwallader, Peter Dogan, Carlos Roca (Danny Hughes 54'), David Forbes, Steve Lewis
Subs not used: Tom Roberts, Josh Williams, Danny Laverty, Sean Dowling, Michael Askew (gk)
Red Cards: Dogan 51' Donegan 90'
Yellow Cards: Dogan 9' & 51', Lewis 38', Forbes 60', Ramsay 73', Cadwallader 73', McManus 75'
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