You crushed sneaky-ninja’s reward during the last round.
Jump in smaller if you must play the end of the line. A big vote at the end is what crushes the profit for all :)
If you are going in at the end - big 30% or less of the remaining Max Profitable Bid for best results.
$15.46 is huge for these bots and you are bidding barely that much left.
Use more bots with less bids and earlier, and you will have better results.