Ok, here's how the system works:
Drops are RANDOMLY GENERATED, its not like the old pking back in wildy where you get the opponent's drops.

now its more like monster drops...with the variety of most items in all of runescape

sucky drops are received when one or both players have less than 25k risked. It is possible to risk 25k/75k 1 iteming, you just crank on item protection prayer AFTER the kill or when hp is below 25%. Well anyways, 25k-74,999gp will give you a wide range of drops that are quite uncommon, such as rare weapons/armor (whips, dark bows, that kinda of stuff) rune drops (like the plateskirt in this case) and better food and ammo. 75K+ gives the maximum possibility of all drops, and will also allow the very rare chance of getting a peice of ancient warrior armor/weapons: Vesta, Zuriel, Statius and Morrigan. These are worth a lot of money and potentially some of the most lethal weapons out there. Also, corrupt dragon drops can be received in 25k risking. INCLUDING F2P DROPS. Brawling gloves I am not entirely sure, but are P2P and most likely in the 25k risk range. Drops are also determined by the drop potential, which can be increased in several ways; staying in a pvp area (not safe zone) for 30 minutes. for every 30 minutes, the drop potential goes up. (Skilling in your house ftw?) Also, when you are killed, your drop potential is temporarily raised to compensate for your death. Following these guidelines, you may be lucky enough for awesome drops

I hope I helpd