The new Portsmouth line-up, with an all-blue first choice strip and all-white change colours, played on a green and terracotta roll-out carpet court at the Mountbatten Centre during 1985–86. After remaining unbeaten in a series of friendlies, including one against a German side at the Mountbatten Centre on 8 September, they made a tremendous start to the season, winning their first 16 matches, including 11 in the league. The first match was a 96–91 home National Cup win over
Crystal Palace on 20 September 1985, followed by their first league game two days later, an 83–68 home victory over Solent. The unbeaten run ended in the National Cup semi-finals, which were both held at the
Aston Villa Leisure Centre in
Birmingham in a 'final four' day they faced another tussle with Kingston. But when Joel Moore suffered serious eye injuries in a road accident, American guard Jose Slaughter was brought in to replace him. This meant an enforced absence for Alan Cunningham, as only two overseas players could be selected for any game, and the revised Portsmouth line-up suffered a 75–92 defeat which denied them a trip to the
Royal Albert Hall in
London for the final. In the next game, three days before Christmas, mid-table
Hemel & Watford Royals inflicted their first league defeat with a shock 82–79 win at the Mountbatten Centre, despite Kalpatrick Wells hitting 20 for the hosts. Another Sunday afternoon home loss followed on 12 January 1986,
Leicester Riders pipping Portsmouth 114–113. But six victories in 18 days set up what was expected to be a title decider at home to Kingston on 5 February. A crowd of 1,511 crammed into the Mountbatten Centre, standing three deep on the balcony and sitting on the floor in front of the bleachers. Kingston, in red vests and yellow shorts, dominated the early exchanges and took a 2–15 lead, but Portsmouth outscored them by two points to one in the remainder of the first half. They took the lead at 24–21 and held their biggest advantage, 16 points, at 58–42 before a Martin Clark basket made it 58–44 at half-time. Kingston made some inroads after the break but when Colin Irish sank a three-pointer with 4 minutes 34 seconds to go Portsmouth still looked in control at 103–95. Two quick turnovers then cost them four cheap points, but the hosts regained command at 106–99 with 3 minutes 30 seconds left. The pace of the game then quickened and baskets were traded, but Portsmouth still led 112–109 with 1 minute 23 seconds remaining. Steve Bontrager, who had scored Kingston's previous four points, sank two free-throws to draw Kingston within one, then with 63 seconds on the clock Kalpatrick Wells dunked to make it 114–111 to Portsmouth and drew a foul in the process. Kingston instantly called a time-out. When the teams returned to the court amid a frenzied atmosphere, Portsmouth allowed victory to slip away. Wells missed his free-throw after the foul, then with 50 seconds remaining Joel Moore fouled Bontrager as he launched a three-point shot. Bontrager made all three from the line to tie the score at 114. On Portsmouth's next offence Dan Lloyd moved deep into Kingston territory, only for Bontrager to steal the ball near the endline. Bontrager dribbled into the Portsmouth half, set up a diversionary play then drove through the lane and shot off the glass to put Kingston 114–116 ahead, their first lead in more than half an hour of play. With five seconds left Portsmouth worked the ball up the court to Irish, who was fouled just outside the three-point line. He hurled up a shot which barely found the backboard in an effort to have it called a shooting foul, but the officials deemed that the foul was committed before the shot. With Kingston in team fouls the rules at the time dictated that Irish, Portsmouth's top scorer on the night with 34 points, would have a 'one and one' – make the first free-throw to receive a second – with one second on the clock. Irish's first shot bounced twice on the rim, players of both sides fought for the rebound and eventually Clark pawed the ball to safety as the buzzer sounded. The Portsmouth players disappeared straight out of the arena as the Kingston contingent celebrated on their court. Within three days two more defeats at
Brunel Uxbridge and Manchester United had ended Portsmouth's title bid, with United ultimately going on to win the crown. Portsmouth won three of their last four league games to finish third, but Danny Palmer resigned and Alan Cunningham took on a caretaker coach role for the remainder of the campaign. Portsmouth played sixth placed
Birmingham Bullets in the National Championship – commonly known as the playoffs – quarter-finals, and having opened with a 92–86 away win they had two chances at home to secure the best-of-three series and a trip to
Wembley Arena for the 'final four' weekend on 21 and 22 March. But 85–93 and 91–95 defeats ended their hopes and left them with just the British Masters trophy to play for. The British Masters began early in the season, Portsmouth beating lower division sides
Caercastell and
Plymouth Raiders away in the opening rounds. Victory at home to
Bracknell Pirates at the end of October took them into the second qualifying stage in March, when they won 82–74 at Hemel & Watford and finished the job with a 101–99 success in the second leg. That brought a quarter-final with Crystal Palace, and expectations were raised by a comeback from 16 points down to win 108–107 at the
National Sports Centre. But again it went wrong at home, and a 106–118 defeat brought a premature end to Portsmouth's season on 26 March 1986. ==1986–87 season==