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Catching Pokemon is an element of game play that Pokemon Go is centered around. Sometimes it can seem as though certain Pokemon are harder to catch than others however. Every Pokemon in the game has two statistics that help calculate the chances of success. These values are known as Base Flee Rate and Base Catch Rate, and thanks to the Pokemon Go Reddit community, we now have a Pokemon flee rate chart.

These two charts that plot every Pokemon flee rate. The first chart displays the success rate or capture rate over 20 attempts, thanks to /u/aem323. The second chart will show you the raw data as extracted from the Pokemon Go raw files, thanks to /u/poops_all_berries.

Pokemon Flee Rate – Probability of success

Percentages are shown over 20 attempts

Number Pokemon Base Catch Rate Base Flee Rate Chance of success
129 Magikarp 0.56 0.15 97.71%
86 Seel 0.4 0.09 95.99%
43 Oddish 0.48 0.15 95.52%
27 Sandshrew 0.4 0.1 95.39%
39 Jigglypuff 0.4 0.1 95.39%
50 Diglett 0.4 0.1 95.39%
54 Psyduck 0.4 0.1 95.39%
56 Mankey 0.4 0.1 95.39%
66 Machop 0.4 0.1 95.39%
74 Geodude 0.4 0.1 95.39%
79 Slowpoke 0.4 0.1 95.39%
81 Magnemite 0.4 0.1 95.39%
84 Doduo 0.4 0.1 95.39%
88 Grimer 0.4 0.1 95.39%
90 Shellder 0.4 0.1 95.39%
96 Drowzee 0.4 0.1 95.39%
100 Voltorb 0.4 0.1 95.39%
102 Exeggcute 0.4 0.1 95.39%
109 Koffing 0.4 0.1 95.39%
111 Rhyhorn 0.4 0.1 95.39%
116 Horsea 0.4 0.1 95.39%
21 Spearow 0.4 0.15 91.73%
23 Ekans 0.4 0.15 91.73%
29 Nidoran♀ 0.4 0.15 91.73%
32 Nidoran♂ 0.4 0.15 91.73%
48 Venonat 0.4 0.15 91.73%
52 Meowth 0.4 0.15 91.73%
60 Poliwag 0.4 0.15 91.73%
69 Bellsprout 0.4 0.15 91.73%
72 Tentacool 0.4 0.15 91.73%
98 Krabby 0.4 0.15 91.73%
118 Goldeen 0.4 0.15 91.73%
120 Staryu 0.4 0.15 91.73%
114 Tangela 0.32 0.09 91.59%
137 Porygon 0.32 0.09 91.59%
138 Omanyte 0.32 0.09 91.59%
140 Kabuto 0.32 0.09 91.59%
147 Dratini 0.32 0.09 91.59%
77 Ponyta 0.32 0.1 90.64%
92 Gastly 0.32 0.1 90.64%
104 Cubone 0.32 0.1 90.64%
133 Eevee 0.32 0.1 90.64%
10 Caterpie 0.4 0.2 87.30%
13 Weedle 0.4 0.2 87.30%
16 Pidgey 0.4 0.2 87.30%
19 Rattata 0.4 0.2 87.30%
41 Zubat 0.4 0.2 87.30%
44 Gloom 0.24 0.07 85.87%
46 Paras 0.32 0.15 85.42%
83 Farfetch’d 0.24 0.09 83.32%
122 Mr. Mime 0.24 0.09 83.32%
123 Scyther 0.24 0.09 83.32%
124 Jynx 0.24 0.09 83.32%
125 Electabuzz 0.24 0.09 83.32%
126 Magmar 0.24 0.09 83.32%
127 Pinsir 0.24 0.09 83.32%
128 Tauros 0.24 0.09 83.32%
35 Clefairy 0.24 0.1 82.01%
37 Vulpix 0.24 0.1 82.01%
58 Growlithe 0.24 0.1 82.01%
30 Nidorina 0.2 0.07 79.84%
33 Nidorino 0.2 0.07 79.84%
61 Poliwhirl 0.2 0.07 79.84%
64 Kadabra 0.2 0.07 79.84%
67 Machoke 0.2 0.07 79.84%
70 Weepinbell 0.2 0.07 79.84%
75 Graveler 0.2 0.07 79.84%
11 Metapod 0.2 0.09 76.94%
14 Kakuna 0.2 0.09 76.94%
17 Pidgeotto 0.2 0.09 76.94%
28 Sandslash 0.16 0.06 73.18%
40 Wigglytuff 0.16 0.06 73.18%
51 Dugtrio 0.16 0.06 73.18%
55 Golduck 0.16 0.06 73.18%
57 Primeape 0.16 0.06 73.18%
80 Slowbro 0.16 0.06 73.18%
82 Magneton 0.16 0.06 73.18%
85 Dodrio 0.16 0.06 73.18%
87 Dewgong 0.16 0.06 73.18%
89 Muk 0.16 0.06 73.18%
91 Cloyster 0.16 0.06 73.18%
97 Hypno 0.16 0.06 73.18%
101 Electrode 0.16 0.06 73.18%
103 Exeggutor 0.16 0.06 73.18%
110 Weezing 0.16 0.06 73.18%
112 Rhydon 0.16 0.06 73.18%
117 Seadra 0.16 0.06 73.18%
121 Starmie 0.16 0.06 73.18%
20 Raticate 0.16 0.07 71.60%
22 Fearow 0.16 0.07 71.60%
24 Arbok 0.16 0.07 71.60%
42 Golbat 0.16 0.07 71.60%
47 Parasect 0.16 0.07 71.60%
49 Venomoth 0.16 0.07 71.60%
53 Persian 0.16 0.07 71.60%
73 Tentacruel 0.16 0.07 71.60%
93 Haunter 0.16 0.07 71.60%
99 Kingler 0.16 0.07 71.60%
119 Seaking 0.16 0.07 71.60%
95 Onix 0.16 0.09 68.48%
106 Hitmonlee 0.16 0.09 68.48%
107 Hitmonchan 0.16 0.09 68.48%
108 Lickitung 0.16 0.09 68.48%
113 Chansey 0.16 0.09 68.48%
115 Kangaskhan 0.16 0.09 68.48%
131 Lapras 0.16 0.09 68.48%
142 Aerodactyl 0.16 0.09 68.48%
143 Snorlax 0.16 0.09 68.48%
1 Bulbasaur 0.16 0.1 66.93%
4 Charmander 0.16 0.1 66.93%
7 Squirtle 0.16 0.1 66.93%
25 Pikachu 0.16 0.1 66.93%
132 Ditto 0.16 0.1 66.93%
45 Vileplume 0.12 0.05 63.72%
139 Omastar 0.12 0.05 63.72%
141 Kabutops 0.12 0.05 63.72%
78 Rapidash 0.12 0.06 62.08%
105 Marowak 0.12 0.06 62.08%
134 Vaporeon 0.12 0.06 62.08%
135 Jolteon 0.12 0.06 62.08%
136 Flareon 0.12 0.06 62.08%
31 Nidoqueen 0.1 0.05 56.72%
34 Nidoking 0.1 0.05 56.72%
62 Poliwrath 0.1 0.05 56.72%
65 Alakazam 0.1 0.05 56.72%
68 Machamp 0.1 0.05 56.72%
71 Victreebel 0.1 0.05 56.72%
76 Golem 0.1 0.05 56.72%
12 Butterfree 0.1 0.06 55.12%
15 Beedrill 0.1 0.06 55.12%
18 Pidgeot 0.1 0.06 55.12%
94 Gengar 0.08 0.05 48.52%
26 Raichu 0.08 0.06 47.04%
36 Clefable 0.08 0.06 47.04%
38 Ninetales 0.08 0.06 47.04%
59 Arcanine 0.08 0.06 47.04%
148 Dragonair 0.08 0.06 47.04%
2 Ivysaur 0.08 0.07 45.59%
5 Charmeleon 0.08 0.07 45.59%
8 Wartortle 0.08 0.07 45.59%
130 Gyarados 0.08 0.07 45.59%
63 Abra 0.4 0.99 40.24%
3 Venusaur 0.04 0.05 27.85%
6 Charizard 0.04 0.05 27.85%
9 Blastoise 0.04 0.05 27.85%
149 Dragonite 0.04 0.05 27.85%

Now using this Pokemon flee rate chart, you know which Pokemon are hardest to catch. You will know which Pokemon to use Razz Berries on. Keep in mind that the percentage of capture is based on a normal Pokeball.

When using a Great Ball, the base Pokemon flee rate is modified by a 1.5 multiplier. Ultra Balls give you a success multiplier of 2.0.