A FAST TAXIING C210 PLT HAD AN INTENTIONAL TXWY EXCURSION IN ORDER TO AVOID COLLISION WITH A SLOWER TAXIING NON-LIGHTED ACFT.

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I WAS FLYING A FLT INTO IND EARLIER TONIGHT. THE WX WAS IMC; AND I WAS BEHIND SCHEDULE. I LANDED ON RWY 23R; TURNED OFF; CONTACTED GND; AND WAS CLRED TO MY DEST ON THE ARPT. THIS IS A 2-3 MI TAXI AND I WANTED TO MAKE UP SOME TIME; SO I SET THE THROTTLE TO ABOUT 1500 RPM AND LET THE AIRPLANE ACCELERATE. THE AIRSPD INDICATOR WAS READING CLOSE TO 40 KTS WHEN SUDDENLY MY TAXI LIGHT ILLUMINATED AN AIRPLANE AHEAD OF ME. HE WAS ALSO CLRED TO TAXI; BUT WAS GOING MUCH SLOWER AND HAD NO LIGHTS ON. I APPLIED THE WHEEL BRAKES; BUT THE WHEELS SKIDDED ON THE WET PAVEMENT AND IT WAS CLR THAT I WOULD NOT BE ABLE TO STOP IN TIME. SO I SWERVED L AND AVOIDED HIM; BUT TAXIED OFF THE PAVEMENT INTO THE MUDDY GRASS AND THE AIRPLANE GOT STUCK. NO HARM DONE AFTER TOWING THE AIRPLANE IN AND CLEANING THE MUD OFF THE NOSEWHEEL. NOTHING HERE WAS LIFE-THREATENING; BUT IT COULD HAVE BEEN A VERY EXPENSIVE EVENT. ONCE AGAIN; AN INCIDENT IS CREATED BY A CHAIN OF SMALL ANOMALIES. 2 ACFT ARE CLRED ON THE SAME TXWY. PLT #1 NEGLECTS TO TURN ON ANY LIGHTS (IS HE DISTR BY THE HIGH-PRESSURE IFR ENVIRONMENT?) PLT #2 IS LATE; SO HE CHOOSES TO TAXI AT HIGH SPD. A CONTRIBUTING FACTOR IS THAT HE HAS GOTTEN USED TO HIGH-SPD TAXIING AND IS ACCUSTOMED TO SLOWING DOWN ONLY WHEN HE SEES LIGHTS AHEAD. THE CTLR IS NOT AWARE OF PLT #2'S HIGH TAXI SPD; AND CAN'T SEE ACFT #1 (BECAUSE HIS LIGHTS ARE OFF). ONCE AGAIN; WE LEARN THAT THE FLT ISN'T OVER UNTIL THE AIRPLANE IS TIED DOWN.