Defenceman Sam Waller scored a late winner to seal a big two points for Streatham over Invicta in front of a lively crowd at the Streatham Arena.
Streatham led 4-1 at one stage thanks to a brace from Josh Ealey-Newman and efforts from Brandon Miles and Ryan Watt.
However the Dynamos battled back to tie the game up in the third period, with Stan Lascek, Juraj Huska, Ashley Jackson and Mason Webster all netting.
Gloves were dropped not once but twice as Ben Paynter and Mason Webster dropped the gloves in the first period, and in the third Brandon Miles dropped them with Brandon Webster.
Sam Waller was named man of the match for Streatham, with Henry Aiken taking the honours for Invicta.
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