To make it easier for new players, here's a list of the rewards for Draft per match as well as Draft ladder rewards at the end of each week.
The rewards per are based on how many wins you get before you get 3 losses.
The IP rewards however, are increased with every game played.
2 Common + Common
3 Uncommon + Common + Common
4 Uncommon + Uncommon + Common
6 Rare + Common
7 Rare + Uncommon + Common
8 Rare + Uncommon + Uncommon
9 Rare + Rare + Uncommon
12 Epic + Uncommon
15 Epic + Rare + Uncommon
18 Epic + Rare + Rare
24 Legendary + Rare
27 Legendary + Epic + Rare
29 Note: Deck becomes completely free to purchase at this point
30 Legendary + Epic + Epic
35 Legendary + Epic + Epic + Gold Common
40 Legendary + Legendary + Epic + Gold Uncommon
45 Legendary + Legendary + Epic + Gold Rare
50 Legendary + Legendary + Epic + Gold Epic
60 Legendary + Legendary + Legendary + Gold Legendary
70 Legendary + Legendary + Legendary + Gold Legendary + Infinity Rare
80 Legendary + Legendary + Legendary + Gold Legendary + Infinity Epic
100 Legendary + Legendary + Legendary + Gold Legendary + Infinity Legendary
On top of these you get bonus rewards if you placed well on the leaderboard at the end of the week. These are as follows:
1-3 Infinity Border cards (1 x common, 1 x uncommon, 1 x rare or above) (soulbound) + 3 Gold Rare or above + 5 Collection Pentapacks
2-5 - 2 Gold Rares or above + 5 Collection Pentapacks
6-25 - 1 Gold Rare or above + 5 Collection Pentapacks
26-50 - 1 Gold Rare or above + 3 Collection Pentapacks
51-75 - 1 Gold Uncommon or above + 2 Collection Pentapacks
76-100 - 1 Gold Common or above + 1 Collection Pentapacks
For more information check out: The Rift Run Ultimate Tips and Tricks guide by Adorabear.