Rise of the Eldrazi is a large set with 100 commons, 60 uncommons, 53 rares, 15 mythic rares, and four variations of each standard basic land. 100 commons is one fewer than contemporary large sets. Foil cards are included in booster packs with advertised odds of 1 : 67 cards. The set was printed in English in the USA and Belgium.
Rise of the Eldrazi was sold in 15 card booster packs (which contain an additional ad card). Booster boxes have 36 packs.
The US printing uses sequential collation with C1/C2 common collation, slightly modified for 100 commons.
Packs are back-facing and have 10 commons followed by 3 uncommons, a rare, an ad card, and a basic land. If there is a foil card, it will appear after the land, displacing a common.
|10 Commons||3 Uncommons||1 Rare||1 Land||1 Ad Card|
|9 Commons||3 Uncommons||1 Rare||1 Land||1 Ad Card||1 Foil|
Packs are evenly split between C1 commons and C2 commons. C1 packs have 3 A cards, 1-2 B, and 5-6 C. C2 packs have 3-4 A cards, 1-4 B, and 2-6 C. Instead of a 101st card in the C1 and C2 runs, one card from each run is repeated an extra time.
When a foil appears in a pack, it will displace a common card. Uncommon foils displace A commons. Rare foils displace C1 commons. Common foils can't be fully understood as displacing a common from a particular run. The great majority of common foils appear in C2 packs. In 3 A C2 packs, the number of B cards is reduced to 2 cards, or if the pack would have had only one or two B cards to begin with, it will have 1 B card. In 4 A packs, the number of B cards is reduced to 1 card. In C1 packs, a common foil will simply displace a B card (which can result in a pack with no B card).
Uncommons are printed on one sheet with each card appearing twice (and one filler). This is divided into a 66-card A run (with 33 distinct cards) and a 54-card B run (with 27 distinct cards). Packs can have either 2 A cards followed by 1 B card, or 1 A card followed by 2 B cards. Since the runs are unbalanced, 2 A cards happens 13/20 of the time.
Rares are printed on one sheet with each rare card appearing twice and each mythic rare card appearing once. This is divided into a 66-card A run (with 29 distinct rares and 8 mythics) and a 55-card B run (with 24 distinct rares and 7 mythics).
The A common run consists of 33 different cards each appearing twice. The choice of first card is mostly arbitrary.
The B common run consists of 22 different cards each appearing three times. The choice of first card is mostly arbitrary.
The C1 common run consists of 26 different cards each appearing twice plus three copies of Hand of Emrakul. The choice of first card is mostly arbitrary.
The C2 common run consists of 17 different cards each appearing three times plus four copies of Ulamog's Crusher. The choice of first card is mostly arbitrary.
The A uncommon run consists of 33 different cards each appearing twice. The choice of first card is mostly arbitrary.
The B uncommon run also consists of 27 different cards each appearing twice. The choice of first card is mostly arbitrary.
The A rare run consists of 29 rares each appearing twice and 8 mythic rares. The choice of first card is mostly arbitrary.
The B rare run consists of 24 rares each appearing twice and 7 mythic rares. The choice of first card is mostly arbitrary.
There is a picture of the foil common sheet available.  Each common card and each basic land variation appears once, except for Plains (232) which appears twice. Probably both copies can appear in packs. (Due to limited data, I have only the copy in row 4.) (Also, I'll note that the images are poor. Although I think it is correct, there is a higher chance of transcription error than usual.)
There is a picture of the foil uncommon sheet available.  Each uncommon card appears twice. The extra copy of Wall of Omens is presumed to be a filler.
There is a picture of the foil rare sheet available.  Each rare card appears twice, and each mythic rare card appears once.
 The rare runs for US Rise of the Eldrazi were published by Ross Edwards in The Card Rebel's Black Book: First Edition. They were also separately decoded in the MTG Salvation box mapping thread by Psionystic using community-provided data.
 A picture of the US foil common sheet is on WorthPoint (archiving an eBay listing).
 A picture of the US foil uncommon sheet is on WorthPoint (archiving an eBay listing).
 A picture of the foil US rare sheet was posted in the Uncut Sheet facebook group by Jeremy Aaranson.