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The Philadelphia Phantoms set an AHL playoff record by winning 9 road games in one playoff year.
Playoff seeds
After the 1997–98 AHL regular season, 16 teams qualified for the playoffs. The top four teams from each division qualified for the playoffs. However, due to the uneven number of teams in the each conference, it was possible for the fifth-placed team in the five team divisions to crossover to the playoffs for the four team divisions. This could only happen if the fifth-placed team in a five team division earned more points than the fourth-placed team in the four team division in the same conference. In this case, the fifth-placed team from the five team division would play in place of the fourth-placed team from the four team division in that part of the playoff bracket. The Philadelphia Phantoms were the Western Conference regular season champions as well as the Macgregor Kilpatrick Trophy winners with the best overall regular season record. The Springfield Falcons were the Eastern Conference regular season champions.
Rochester Americans – 72 points (Played in the Mid-Atlantic Division bracket by virtue of earning more points than the fourth-placed team in that division)
Mid-Atlantic Division
Philadelphia Phantoms – Western Conference regular season champions; Macgregor Kilpatrick Trophy winners, 106 points
In each round the team that earned more points during the regular season receives home ice advantage, meaning they receive the "extra" game on home-ice if the series reaches the maximum number of games. There is no set series format due to arena scheduling conflicts and travel considerations.