Five to follow: Tuesday's basketball matchups

The Bishop Guertin High School girls basketball team once again finds itself facing an undefeated opponent in a game that could eventually determine the top seed in Division I. Here's a look at that game, plus four other key basketball contests scheduled for Tuesday night.

No. 1: Bishop Guertin at Manchester Memorial girls basketball, 7 p.m.

The Cardinals (9-0) and the Crusaders (8-0) are the last two undefeated teams in Division I, and the winner will have the inside track at the No. 1 seed in the tournament. But each team got to this point in different ways: Bishop Guertin's opponents have a combined 30-36 record, and the Cardinals handed Londonderry (7-1) and Winnacunnet (7-1) their only losses of the season; Memorial's wins have come against teams with a combined record of 17-53.

No. 2: Souhegan at Goffstown boys basketball, 6:30 p.m.

The Sabers (6-1 in Division II) are coming off their first loss of the season, a 55-43 setback against Portsmouth that saw Souhegan score well below its average of 67.1 points per game. Goffstown (5-2) scores even more than that, putting up 74.4 points per game, and when these teams met a year ago, the Sabers held on for a 97-92 win. After this game, Souhegan will play six of its final 10 games at home, and two of those road games are at Milford and at Bedford.

No. 3: Goffstown at Souhegan girls basketball, 6:30 p.m.

Souhegan (5-3) bounced back from a loss to Hollis Brookline with a huge road win over Portsmouth, 49-41, last Friday. The Sabers will be playing at home for the sixth time in the last seven games. After starting out the year 2-0, Goffstown (5-3) has alternated wins and losses, and has averaged just 30.3 points in its defeats.

No. 4: Londonderry at Nashua North girls basketball, 7 p.m.

The Titans (7-1) will find out where they stand in the Division I landscape when they host the Lancers (7-1). Like Memorial, North's record has been put together against teams who are a combined 22-49 this season.

No. 5: Dover at Nashua South boys basketball, 7 p.m.

Both teams could use a win, as South (4-3) has lost three in a row and Dover (3-3) has dropped two of its last three. The Panthers came close against Pinkerton on Friday, falling 58-56 without Anthony Muccioli. Neither team has done a lot of scoring this year, as both average just over 50 points per game.Each team has broken 60 just once this season, with South doing so in a loss to Spaulding, and Dover topping 60 its last time out in a win over Londonderry.