I'd be interested in the raw results of your rolls.
Like, for the fun of it today, I used 516 spins of single-zero roulette from the Wiz's site,
http://wizardofodds.com/roulette/10000spins-singlezero.html
always betting on "Odds" with a 100 unit roll and won 100 "SEQUENCES" in 516 spins of the wheel without a loss.
Total units bet=1500. Avg length of "session", 2.9 spins. 86% of bets=4 units or less. Max unit bet = 22. Longest "SEQUENCE" = 65 spins. Happened on the 3rd sequence as it happened while betting 651 units in those 65 spins.
Might have made some betting mistakes, as maybe you did. Betting was manual, the roulette results computer-generated.
While a 100 unit roll has covered the results so far, I'm assuming a 500 unit roll.
Also, for the 516 spins, 251 "Odds" bet would have been expected but 273 actually occurred.
So, sure, a little "lucky", but, what the heck, I doubled my original 100 units in 516 spins as it happens
If I had chosen to bet on "Even", I'm sure the results would have varied somewhat.
But even 516 spins could be almost 15 hours spent at a full roulette table.
Not that it means that much. But, from what I can gather, I don't find it in the least bit surprising either.