Mario Kart 7 item probability distributions

The following item probability distributions are used by version 1.1 of Mario Kart 7 to determine the probability of obtaining a certain item when an Item Box is opened[1][2]. Such a probability is coded as a percentage multiplied by two. Text directly derived from in-game data is reported in italics.

Races

During races, the item probability distribution is chosen depending on the current position in the ranking at the moment the Item Box is opened.

Grand Prix races

Grand Prix races, drivers controlled by players (GrandPrix)
Position                               Test3 Test4      
Banana KouraG KouraR Kinoko Bomhei Gesso KouraB Kinoko3 Star Killer Thunder KinokoP Flower Konoha Seven Banana3 KouraG3 KouraR3
rank1 70 60 10 10 20 30
rank2 30 40 50 30 10 20 20
rank3 10 20 40 30 20 20 20 10 20 10
rank4 10 20 40 20 10 30 20 10 10 10 20
rank5 10 30 10 20 10 40 20 10 10 10 10 20
rank6 30 20 50 40 10 30 10 10
rank7 20 50 30 30 20 50
rank8 10 30 20 60 50 30
Grand Prix races, drivers controlled by software (GrandPrix_AI)
Position                               Test3 Test4      
Banana KouraG KouraR Kinoko Bomhei Gesso KouraB Kinoko3 Star Killer Thunder KinokoP Flower Konoha Seven Banana3 KouraG3 KouraR3
rank1 90 60 10 10 30
rank2 30 20 65 20 10 15 10 20 10
rank3 30 20 40 30 30 20 10 20
rank4 30 20 20 50 20 10 10 10 10 20
rank5 20 20 70 10 20 10 30 10 10
rank6 20 20 50 20 10 40 20 10 10
rank7 20 10 50 10 20 50 20 10 10
rank8 20 10 45 50 10 20 25 20

VS races

All Items

Local and online VS races, drivers controlled by players (VS, WiFi)
Position                               Test3 Test4      
Banana KouraG KouraR Kinoko Bomhei Gesso KouraB Kinoko3 Star Killer Thunder KinokoP Flower Konoha Seven Banana3 KouraG3 KouraR3
rank1 100 60 20 20
rank2 25 20 45 30 15 15 20 20 10
rank3 15 10 30 30 20 15 20 10 10 20 20
rank4 10 20 40 20 10 30 10 10 10 20 20
rank5 10 40 10 20 10 60 10 10 10 10 10
rank6 10 30 20 70 40 20 10
rank7 30 60 50 20 40
rank8 20 30 30 40 30 50
Local and online VS races, drivers controlled by software (VS_AI, WiFi_AI)
Position                               Test3 Test4      
Banana KouraG KouraR Kinoko Bomhei Gesso KouraB Kinoko3 Star Killer Thunder KinokoP Flower Konoha Seven Banana3 KouraG3 KouraR3
rank1 90 60 10 10 30
rank2 40 30 60 20 10 10 20 10
rank3 30 20 50 30 20 20 20 10
rank4 20 20 20 50 20 10 10 10 20 20
rank5 20 30 10 40 20 20 10 20 10 20
rank6 30 40 10 20 10 40 30 10 10
rank7 30 40 10 20 40 30 20 10
rank8 30 30 30 20 40 20 30

Shells Only

VS races with Shells as the only items (Koura)
Position                               Test3 Test4      
Banana KouraG KouraR Kinoko Bomhei Gesso KouraB Kinoko3 Star Killer Thunder KinokoP Flower Konoha Seven Banana3 KouraG3 KouraR3
rank1 200
rank2 70 90 20 20
rank3 50 80 40 30
rank4 10 70 70 50
rank5 40 30 50 80
rank6 30 40 40 90
rank7 30 50 20 100
rank8 30 60 110

Bananas Only

VS races with Bananas as the only items (Banana)
Position                               Test3 Test4      
Banana KouraG KouraR Kinoko Bomhei Gesso KouraB Kinoko3 Star Killer Thunder KinokoP Flower Konoha Seven Banana3 KouraG3 KouraR3
rank1 200
rank2 180 20
rank3 160 40
rank4 120 20 60
rank5 80 30 90
rank6 30 40 130
rank7 50 150
rank8 60 140

Mushrooms Only

VS races with Mushrooms as the only items (Kinoko)
Position                               Test3 Test4      
Banana KouraG KouraR Kinoko Bomhei Gesso KouraB Kinoko3 Star Killer Thunder KinokoP Flower Konoha Seven Banana3 KouraG3 KouraR3
rank1 200
rank2 180 20
rank3 150 50
rank4 100 100
rank5 30 140 30
rank6 130 30 40
rank7 90 50 60
rank8 40 80 80

Bob-ombs Only

VS races with Bob-ombs as the only items (Bomb)
Position                               Test3 Test4      
Banana KouraG KouraR Kinoko Bomhei Gesso KouraB Kinoko3 Star Killer Thunder KinokoP Flower Konoha Seven Banana3 KouraG3 KouraR3
rank1 200
rank2 200
rank3 200
rank4 200
rank5 180 20
rank6 160 40
rank7 130 70
rank8 50 150

Battle Mode

During battles, the item probability distribution is chosen depending on the point difference from the player(s) in first place at the moment the Item Box is opened. There are three possible cases, and the criteria to reach each case are not reported alongside the distributions in the in-game data. The item probability distributions used for Balloon Battles are the same used for Coin Runners battles.

All Items

Local and online Balloon Battles and Coin Runners battles, drivers controlled by players (Balloon, Balloon_WiFi, Coin, Coin_WiFi)
Points behind                               Test3 Test4      
Banana KouraG KouraR Kinoko Bomhei Gesso KouraB Kinoko3 Star Killer Thunder KinokoP Flower Konoha Seven Banana3 KouraG3 KouraR3
Less than 2 points/1st place (rank1) 30 60 40 20 10 20 10 10
2-4 points (rank2) 10 20 60 10 20 10 10 10 10 10 20 10
More than 4 points (rank3) 55 20 10 20 30 25 10 10 20
Local and online Balloon Battles and Coin Runners battles, drivers controlled by software (Balloon_AI, Balloon_WiFi_AI, Coin_AI, Coin_WiFi_AI)
Points behind                               Test3 Test4      
Banana KouraG KouraR Kinoko Bomhei Gesso KouraB Kinoko3 Star Killer Thunder KinokoP Flower Konoha Seven Banana3 KouraG3 KouraR3
Less than 2 points/1st place (rank1) 30 30 70 10 10 10 10 10 20
2-4 points (rank2) 10 10 80 10 20 10 10 10 10 10 20
More than 4 points (rank3) 100 10 10 20 20 10 10 10 10

Shells Only

Balloon Battles and Coin Runners battles with Shells as the only items (Balloon_Koura, Coin_Koura)
Points behind                               Test3 Test4      
Banana KouraG KouraR Kinoko Bomhei Gesso KouraB Kinoko3 Star Killer Thunder KinokoP Flower Konoha Seven Banana3 KouraG3 KouraR3
Less than 2 points/1st place (rank1) 80 100 20
2-4 points (rank2) 30 80 20 40 30
More than 4 points (rank3) 50 50 30 70

Bananas Only

Balloon Battles and Coin Runners battles with Bananas as the only items (Balloon_Banana, Coin_Banana)
Points behind                               Test3 Test4      
Banana KouraG KouraR Kinoko Bomhei Gesso KouraB Kinoko3 Star Killer Thunder KinokoP Flower Konoha Seven Banana3 KouraG3 KouraR3
Less than 2 points/1st place (rank1) 170 30
2-4 points (rank2) 120 20 60
More than 4 points (rank3) 50 50 100

Mushrooms Only

Balloon Battles and Coin Runners battles with Mushrooms as the only items (Balloon_Kinoko, Coin_Kinoko)
Points behind                               Test3 Test4      
Banana KouraG KouraR Kinoko Bomhei Gesso KouraB Kinoko3 Star Killer Thunder KinokoP Flower Konoha Seven Banana3 KouraG3 KouraR3
Less than 2 points/1st place (rank1) 150 30 20
2-4 points (rank2) 70 90 40
More than 4 points (rank3) 10 100 40 50

Bob-ombs Only

Balloon Battles and Coin Runners battles with Bob-ombs as the only items (Balloon_Bomhei, Coin_Bomhei)
Points behind                               Test3 Test4      
Banana KouraG KouraR Kinoko Bomhei Gesso KouraB Kinoko3 Star Killer Thunder KinokoP Flower Konoha Seven Banana3 KouraG3 KouraR3
Less than 2 points/1st place (rank1) 200
2-4 points (rank2) 180 20
More than 4 points (rank3) 130 70

Special cases

These item probability distributions are used in special cases.

Decided

These item probability distributions are rather simplified with respect to the ones used in races and battles without specific items. Since the first one corresponds to the distribution of the special item box in DS DK Pass, it is possible that at least some of them are related to special item boxes.

Decided item probability distributions
Type                               Test3 Test4      
Banana KouraG KouraR Kinoko Bomhei Gesso KouraB Kinoko3 Star Killer Thunder KinokoP Flower Konoha Seven Banana3 KouraG3 KouraR3
type1 70 70 60
type2 200
type3 40 40 90 30
type4 140 60
type5 200
type6 200
type7 200
type8 200
type9 200
type10 200
type11 200
type12 200
type13 200
type14 200
type15 200
type16 200

StreetPass racers item probability distributions

These item probability distributions are assigned to StreetPass racers, according to their title.

StreetPass racers' item probability distributions (Title)
Type                               Test3 Test4      
Banana KouraG KouraR Kinoko Bomhei Gesso KouraB Kinoko3 Star Killer Thunder KinokoP Flower Konoha Seven Banana3 KouraG3 KouraR3
Sniper 140 60
BananaMaster 140 60
Bomber 200
DefenseMaster 70 70 30 30
Wingman 140 60
Fishman 140 60
type7 200
type8 200

See also

References