It is possible for more than one IV+level configuration to be optimal for a given Pokémon in a given League. The optimal Master League configuration is always the “maxed out” 15-15-15 IVs at Level 50. These Pokémon each have a configuration functionally equivalent to that configuration. Pokémon incapable of meeting the Ultra League CP bound of 2500 are not included.
TPokémonOptimumFunctional optima
fire flyingCharizard15-15-15 50 (3266)15-15-14 50 (3258)
electric psychicAlolan Raichu15-15-15 50 (2585)15-15-14 50 (2577)
normal flyingDodrio15-15-15 50 (2670)15-15-14 50 (2662)
ghost poisonGengar15-15-15 50 (3254)15-15-14 50 (3244)
water psychicStarmie15-15-15 50 (2922)15-15-14 50 (2913)
rock waterKabutops15-15-15 50 (3067)15-15-14 50 (3058)
normalSnorlax15-15-15 50 (3647)15-15-14 50 (3641)
fireTyphlosion15-15-15 50 (3266)15-15-14 50 (3258)
waterFeraligatr15-15-15 50 (3230)15-15-14 50 (3222)
poison flyingCrobat15-15-15 50 (2992)15-15-14 50 (2985)
normalPorygon215-15-15 50 (3065)15-15-14 50 (3057)
grass fightingBreloom15-15-15 50 (2971)15-15-14 50 (2963)
ice waterWalrein15-15-15 50 (3081)15-15-14 50 (3075)
waterKyogre15-15-15 50 (4652)15-15-14 50 (4642)
groundGroudon15-15-15 50 (4652)15-15-14 50 (4642)
normal flyingStaraptor15-15-15 50 (3194)15-15-14 50 (3187)
grass poisonRoserade15-15-15 50 (3359)15-15-14 50 (3349)
waterFloatzel15-15-15 50 (2762)15-15-14 50 (2755)
ghostMismagius15-15-15 50 (2957)15-15-14 50 (2948)
poison darkSkuntank15-15-15 50 (2666)15-15-14 50 (2661)
steel psychicBronzong15-15-15 50 (2531)15-15-14 50 (2524)
normalLickilicky15-15-15 50 (2789)15-15-14 50 (2783)
fairy flyingTogekiss15-15-15 50 (3767)15-15-14 50 (3758)
ice groundMamoswine15-15-15 50 (3763)15-15-14 50 (3755)
normalPorygon-Z15-15-15 50 (3693)15-15-14 50 (3684)
steel dragonDialga15-15-15 50 (4565)15-15-14 50 (4555)
steel dragonDialga Origin15-15-15 50 (4624)15-15-14 50 (4613)
fire fightingEmboar15-15-15 50 (3372)15-15-14 50 (3365)
normalStoutland15-15-15 50 (3196)15-15-14 50 (3189)
rockGigalith15-15-15 50 (3650)15-15-14 50 (3641)
ground steelExcadrill15-15-15 50 (3667)15-15-14 50 (3660)
bug poisonScolipede15-15-15 50 (2766)15-15-14 50 (2758)
darkZoroark15-15-15 50 (2907)15-15-14 50 (2898)
psychicReuniclus15-15-15 50 (3309)15-15-14 50 (3303)
steelKlinklang15-15-15 50 (2981)15-15-14 50 (2972)
electricEelektross15-15-15 50 (3089)15-15-14 50 (3082)
ghost fireChandelure15-15-15 50 (3695)15-15-14 50 (3684)
ground ghostGolurk15-15-15 50 (3226)15-15-14 50 (3219)
psychic flyingHisuian Braviary15-15-15 50 (3181)15-15-14 50 (3175)
fireHeatmor15-15-15 50 (2708)15-15-14 50 (2701)
dark dragonHydreigon15-15-15 50 (4098)15-15-14 50 (4089)
bug fireVolcarona15-15-15 50 (4106)15-15-14 50 (4096)
dragon fireReshiram15-15-15 50 (4565)15-15-14 50 (4555)
dragon electricZekrom15-15-15 50 (4565)15-15-14 50 (4555)
ground flyingLandorus Incarnate15-15-15 50 (4057)15-15-14 50 (4047)
ground flyingLandorus Therian15-15-15 50 (4434)15-15-14 50 (4424)
fairyFlorges15-15-15 50 (3657)15-15-14 50 (3648)
fighting flyingHawlucha15-15-15 50 (2724)15-15-14 50 (2718)
ghost grassTrevenant15-15-15 50 (2893)15-15-14 50 (2886)
ghost grassGourgeist Super15-15-15 50 (2976)15-15-14 50 (2969)
flying dragonNoivern15-15-15 50 (3125)15-15-14 50 (3117)
psychic ghostHoopa Confined15-15-15 50 (3797)15-15-14 50 (3787)
psychic darkHoopa Unbound15-15-15 50 (4530)15-15-14 50 (4517)
grass ghostDecidueye15-15-15 50 (3137)15-15-14 50 (3129)
rockLycanroc Midnight15-15-15 50 (3102)15-15-14 50 (3095)
ghost groundPalossand15-15-15 50 (2763)15-15-14 50 (2756)
rock flyingMinior15-15-15 50 (2591)15-15-14 50 (2584)
fire dragonTurtonator15-15-15 50 (2513)15-15-14 50 (2505)
normal dragonDrampa15-15-15 50 (3294)15-15-14 50 (3286)
fire ghostBlacephalon15-15-15 50 (3727)15-15-14 50 (3715)
bug psychicOrbeetle15-15-15 50 (2513)15-15-14 50 (2506)
rock fireCoalossal15-15-15 50 (2659)15-15-14 50 (2654)
grass dragonAppletun15-15-15 50 (2772)15-15-14 50 (2766)
ghostPolteageist15-15-15 50 (3458)15-15-14 50 (3448)
ghostCursola15-15-15 50 (3463)15-15-14 50 (3452)
psychic normalIndeedee Male15-15-15 50 (2762)15-15-14 50 (2753)
fairyZacian15-15-15 50 (4329)15-15-14 50 (4319)
fairy steelZacian Crowned Sword15-15-15 50 (5629)15-15-14 50 (5615)
fightingZamazenta15-15-15 50 (4329)15-15-14 50 (4319)
fighting steelZamazenta Crowned Shield15-15-15 50 (4717)15-15-14 50 (4705)
normal psychicWyrdeer15-15-15 50 (3089)15-15-14 50 (3083)
dark poisonOverqwil15-15-15 50 (3330)15-15-14 50 (3323)
water fightingQuaquaval15-15-15 50 (3411)15-15-14 50 (3403)
normalOinkologne Male15-15-15 50 (2949)15-15-14 50 (2943)
grass normalArboliva15-15-15 50 (3345)15-15-14 50 (3337)
fire psychicArmarouge15-15-15 50 (3628)15-15-14 50 (3620)
fairy steelTinkaton15-15-15 50 (2544)15-15-14 50 (2538)
fighting ghostAnnihilape15-15-15 50 (3695)15-15-14 50 (3688)
Pokémon GO: A Quantitative Approach