4 quarterbacks were tied for the highest passer rating by a quarterback in a game in 2015, with a 158.3 rating. The first three are Ryan Nassib on December 27, 2015, Kirk Cousins on November 15, 2015 and Ryan Tannehill on October 25, 2015.

which quarterback has the highest passer rating in a game in 2015
Interpreted as:
Which quarterback has the highest passer rating in a regular-season game in 2015?
12/27/2015Nassib11/15/2015Cousins10/25/2015Tannehill9/13/2015Mariota12/17/2015Keenum9/20/2015Roethlisberger1/3/2016Cousins12/20/2015Bridgewater10/11/2015Palmer12/20/2015Cousins12/13/2015Newton12/14/2015Manning11/15/2015Cutler9/27/2015Clemens9/20/2015Weeden10/18/2015Jones12/21/2015Stafford11/29/2015Wilson12/6/2015Dalton11/8/2015Taylor12/6/2015Wilson9/10/2015Brady9/13/2015Rodgers158.3158.3158.3158.3158.0155.8155.1154.4154.2153.7153.3151.5151.0150.0149.7149.3148.6147.9146.8146.5146.0143.8140.5
NAMEDATETMOPPRATECMPATTPCTYDSAVGTDTD%INTINT%SCKSCKY
Ryan NassibRyan Nassib12/27/2015NYGNYG@ MIN
@
158.355100.06813.6120.000.000
Kirk CousinsKirk Cousins11/15/2015WASWASvs. NO
vs.
158.3202580.032413.0416.000.0323
Ryan TannehillRyan Tannehill10/25/2015MIAMIAvs. HOU
vs.
158.3181994.728214.8421.100.0441
Marcus MariotaMarcus Mariota9/13/2015TENTEN@ TB
@
158.3131586.720913.9426.700.0224
Case KeenumCase Keenum12/17/2015STLSTLvs. TB
vs.
158.0141782.423413.8211.800.0213
Ben RoethlisbergerBen Roethlisberger9/20/2015PITPITvs. SF
vs.
155.8212777.836913.7311.100.000
Kirk CousinsKirk Cousins1/3/2016WASWAS@ DAL
@
155.1121580.017611.7320.000.000
Teddy BridgewaterTeddy Bridgewater12/20/2015MINMINvs. CHI
vs.
154.4172085.023111.6420.000.0110
Carson PalmerCarson Palmer10/11/2015ARIARI@ DET
@
154.2111478.616111.5321.400.0213
Kirk CousinsKirk Cousins12/20/2015WASWASvs. BUF
vs.
153.7222878.631911.4414.300.0111
Cam NewtonCam Newton12/13/2015CARCARvs. ATL
vs.
153.3152171.426512.6314.300.0219
Eli ManningEli Manning12/14/2015NYGNYG@ MIA
@
151.5273187.133710.9412.900.000
Jay CutlerJay Cutler11/15/2015CHICHI@ STL
@
151.0192479.225810.8312.500.0214
Kellen ClemensKellen Clemens9/27/2015SDSD@ MIN
@
150.05683.36310.5116.700.000
Brandon WeedenBrandon Weeden9/20/2015DALDAL@ PHI
@
149.777100.07310.4114.300.000
Landry JonesLandry Jones10/18/2015PITPITvs. ARI
vs.
149.381266.716814.0216.700.000
Matthew StaffordMatthew Stafford12/21/2015DETDET@ NO
@
148.6222588.025410.2312.000.038
Russell WilsonRussell Wilson11/29/2015SEASEAvs. PIT
vs.
147.9213070.034511.5516.700.029
Andy DaltonAndy Dalton12/6/2015CINCIN@ CLE
@
146.8141973.722011.6210.500.016
Tyrod TaylorTyrod Taylor11/8/2015BUFBUFvs. MIA
vs.
146.5111291.718115.118.300.0327
Russell WilsonRussell Wilson12/6/2015SEASEA@ MIN
@
146.0212777.827410.1311.100.018
Tom BradyTom Brady9/10/2015NENEvs. PIT
vs.
143.8253278.12889.0412.500.027
Aaron RodgersAaron Rodgers9/13/2015GBGB@ CHI
@
140.5182378.31898.2313.000.000
Andy DaltonAndy Dalton11/5/2015CINCINvs. CLE
vs.
139.8212777.82348.7311.100.0215
Russell WilsonRussell Wilson12/13/2015SEASEA@ BAL
@
139.6233271.92929.1515.600.000

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