D.C. United begins the second half of the MLS season Saturday night against the Montreal Impact at RFK Stadium. Before looking forward, let’s flash back, by the numbers:

1: United’s place in the Eastern Conference ... sort of. United is even on points with the Red Bulls, but New York has played one fewer match. And third-place Sporting Kansas City is one point behind with two matches to make up. Last year at the midway mark, United was tied for fifth.

1 (Part II): Players on this week’s injury report (rookie midfielder Lance Rozeboom, knee surgery).

1 (Part III): League matches at RFK between May 27 and Aug. 3.

1 (Part IV): Remaining trips to the West Coast (Sept. 29 at Portland).

9: United’s positive goal difference, tied with Real Salt Lake for second best in MLS behind San Jose (12).

9 (Part II): Dwayne De Rosario’s assists total, best in MLS. Last year he had 12 in 33 matches with three clubs.

5: United players with at least two goals. That was the total all of last season. (Brandon McDonald scored twice but just once with DCU.)

5 (Part II): Possible call-ups for World Cup qualifiers in early September: De Rosario and Dejan Jakovic for Canada, Hamdi Salihi for Albania, Branko Boskovic for Monte­negro, Andy Najar for Honduras. (United is off during that qualifying period.)

5 (Part III): Goals by Chris Pontius against the Red Bulls in two meetings.

5 (Part IV): Weeks ahead of scheduled friendly that Juventus withdrew. (PSG will play at RFK on July 28 instead.)

3: United’s rank in shots on goal. The club is averaging 4.65 per match, a slight uptick from 4.4 last year.

20: Points at RFK in eight matches (6-0-2) since losing the opener to Kansas City.

2: Goals conceded in the last 15 minutes — third fewest in MLS.

6: Goals scored in first 15 minutes — second most in MLS.

14: United’s rank in home attendance (13,668), a notable blemish for a club with a tradition of strong support. Positive sign: The club is expecting the biggest turnout of the season Saturday and might approach the downsized capacity of 19,647.

76(ers): NBA team co-owned by United’s presumptive incoming lead investor, Erick Thohir.

4: Blocks between Nationals Park and proposed DCU stadium at Buzzard Point.

Quadratic equation: Calculating date for groundbreaking at said stadium.