7 quarterbacks are tied for the highest passer rating by a Browns quarterback in a game, with a 158.3 rating. The first three are Mike Pagel on December 17, 1989, Brian Sipe on October 29, 1978 and on November 7, 1976 and Frank Ryan on December 12, 1964.

which browns qb has the highest passer rating in a game
Interpreted as:
Which browns qb has the highest passer rating in a regular-season game?
12/17/1989Pagel10/29/1978Sipe11/7/1976Sipe12/12/1964Ryan10/8/1961Dawson10/5/1958Plum10/23/1955Ratterman11/7/1954Ratterman10/10/1954Graham12/6/1953Graham10/30/1966Ninowski11/28/1965Ninowski10/16/1960Plum11/13/1960Plum10/25/1959Plum10/13/1957O'Connell10/4/1959Plum10/19/1952Ratterman11/11/2018Mayfield11/19/1978Sipe10/4/1953Graham10/25/1964Ninowski12/11/1966Ninowski158.3158.3158.3158.3158.3158.3158.3158.3158.3158.3156.3156.3156.3154.9153.9153.3152.1152.1151.3150.6150.6149.3147.9
NAMEDATETMOPPRATECMPATTPCTYDSAVGTDTD%INTINT%SCKSCKY
Mike PagelMike Pagel12/17/1989CLECLEvs. MIN
vs.
158.311100.01414.01100.000.000
Brian SipeBrian Sipe10/29/1978CLECLEvs. BUF
vs.
158.3121580.021714.5320.000.0
Brian SipeBrian Sipe11/7/1976CLECLE@ HOU
@
158.311100.02323.01100.000.0
Frank RyanFrank Ryan12/12/1964CLECLE@ NYG
@
158.3121392.320215.5538.500.0
Len DawsonLen Dawson10/8/1961CLECLEvs. WAS
vs.
158.311100.01717.01100.000.0
Milt PlumMilt Plum10/5/1958CLECLE@ PIT
@
158.3131492.919714.1214.300.0
George RattermanGeorge Ratterman10/23/1955CLECLEvs. GB
vs.
158.333100.08428.0266.700.0
George RattermanGeorge Ratterman11/7/1954CLECLEvs. WAS
vs.
158.3101190.920818.9327.300.0
Otto GrahamOtto Graham10/10/1954CLECLEvs. CHC
vs.
158.3141877.826614.8316.700.0
Otto GrahamOtto Graham12/6/1953CLECLEvs. NYG
vs.
158.344100.011629.0125.000.0
Jim NinowskiJim Ninowski10/30/1966CLECLE@ ATL
@
156.33475.07218.0250.000.0
Jim NinowskiJim Ninowski11/28/1965CLECLE@ PIT
@
156.33475.07218.0250.000.0
Milt PlumMilt Plum10/16/1960CLECLE@ DLC
@
156.36875.010613.3225.000.0
Milt PlumMilt Plum11/13/1960CLECLEvs. STL
vs.
154.9111573.319412.9213.300.0
Milt PlumMilt Plum10/25/1959CLECLEvs. WAS
vs.
153.9131872.225314.1422.200.0
Tommy O'ConnellTommy O'Connell10/13/1957CLECLEvs. PHI
vs.
153.35771.411015.7114.300.0
Milt PlumMilt Plum10/4/1959CLECLE@ CHC
@
152.1111478.615411.0214.300.0
George RattermanGeorge Ratterman10/19/1952CLECLE@ PHI
@
152.111100.01111.01100.000.0
Baker MayfieldBaker Mayfield11/11/2018CLECLEvs. ATL
vs.
151.3172085.021610.8315.000.000
Brian SipeBrian Sipe11/19/1978CLECLE@ BAL
@
150.6152268.230914.0418.200.0
Otto GrahamOtto Graham10/4/1953CLECLE@ CHC
@
150.6152268.231014.1313.600.0
Jim NinowskiJim Ninowski10/25/1964CLECLEvs. NYG
vs.
149.32366.75217.3133.300.0
Jim NinowskiJim Ninowski12/11/1966CLECLE@ PHI
@
147.911100.01010.01100.000.0
Jim NinowskiJim Ninowski12/12/1964CLECLE@ NYG
@
147.94666.77312.2116.700.0
Baker MayfieldBaker Mayfield12/6/2020CLECLE@ TEN
@
147.0253375.833410.1412.100.000
Results may be incomplete. StatMuse has complete game-level data for passer rating going back to the 1950 season.

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