Chicago is eliminated from first place.

To show that Chicago is eliminated from first place, we start with the current conference standings:
            Team	W	L	GL	PCT	GB
         Detroit	48	19	15	0.716	0.0
          Boston	45	23	14	0.662	3.5
        New York	44	25	13	0.638	5.0
       Cleveland	41	27	14	0.603	7.5
         Orlando	38	29	15	0.567	10.0
         Toronto	38	29	15	0.567	10.0
           Miami	38	30	14	0.559	10.5
         Atlanta	37	31	14	0.544	11.5
    Philadelphia	37	31	14	0.544	11.5
       Charlotte	34	34	14	0.500	14.5
       Milwaukee	28	39	15	0.418	20.0
         Chicago	28	40	14	0.412	20.5
        Brooklyn	17	51	14	0.250	31.5
      Washington	16	51	15	0.239	32.0
         Indiana	15	53	14	0.221	33.5
           Total	504	512	214

Chicago can finish the season with at most 28 + 14 = 42 wins and will finish the season behind the following teams:
Detroit has already won 48 games.
Boston has already won 45 games.
New York has already won 44 games.