NBA Referee Profile
James Williams
James Williams has officiated 950 NBA games, and the numbers say he lets play run. His career average of 39.6 personal fouls per game sits 0.8% below league average, and his 45.2 free throw attempts per game trails the league mark by 0.9% — both figures pointing to a referee who keeps the whistle in his pocket and lets contact absorb into the flow of the game. For bettors, that translates to lower-scoring environments driven by fewer foul interruptions and reduced trips to the line, which compresses variance and favors teams built to grind rather than draw calls. His home team win rate of 57.2% runs above the league baseline, a signal that home-court advantage gets amplified under his watch — whether through crowd-influenced calls or simple deference to the home side, the lean is consistent enough to track. When Williams is on the sheet, fade the road team at a slimmer number than you normally would.
Career stats
Games officiated
950
Personal fouls / g
39.6
-0.8% vs league
Free throw attempts / g
45.2
-0.9% vs league
Combined points / g
215.2
+0.2% vs league
Home vs visitor
Home teams win 57.2% of games officiated by James. Roughly in line with the ~57% league baseline — no strong home lean either way.
Recent seasons
| Season | Games | PF/g | FTA/g | PTS/g | Home W% |
|---|---|---|---|---|---|
| 2018-19 | 63 | 42.3 | 48.2 | 226.3 | 57.1% |
| 2017-18 | 61 | 40.1 | 43.8 | 214.0 | 67.2% |
| 2016-17 | 69 | 39.3 | 45.5 | 214.3 | 56.5% |
| 2015-16 | 65 | 40.6 | 47.3 | 210.0 | 52.3% |
| 2014-15 | 62 | 39.8 | 44.8 | 196.7 | 53.2% |
| 2013-14 | 55 | 41.0 | 46.1 | 201.3 | 58.2% |
| 2012-13 | 50 | 40.6 | 43.7 | 191.9 | 54.0% |
| 2011-12 | 46 | 41.2 | 46.0 | 191.1 | 58.7% |
| 2010-11 | 59 | 42.0 | 49.2 | 202.4 | 62.7% |
| 2009-10 | 6 | 43.2 | 51.8 | 203.0 | 66.7% |
Top team splits
Teams James has officiated the most, and how those franchises have fared under him.
| Team | Games | W-L | W% | Pace | PTS/g |
|---|---|---|---|---|---|
| LAL | 74 | 34-40 | 45.9% | 97.6 | 106.0 |
| CHI | 73 | 38-35 | 52.1% | 96.0 | 104.8 |
| MIA | 71 | 38-33 | 53.5% | 95.5 | 105.1 |
| PHI | 68 | 35-33 | 51.5% | 96.4 | 106.3 |
| OKC | 67 | 39-28 | 58.2% | 97.7 | 108.4 |
| MEM | 66 | 36-30 | 54.5% | 95.2 | 103.6 |
| NOH | 66 | 29-37 | 43.9% | 95.8 | 103.6 |
| DEN | 66 | 35-31 | 53.0% | 97.9 | 110.6 |
| ORL | 66 | 32-34 | 48.5% | 96.1 | 102.4 |
| BOS | 65 | 40-25 | 61.5% | 96.9 | 106.5 |
| NJN | 64 | 30-34 | 46.9% | 96.6 | 105.0 |
| SAS | 63 | 34-29 | 54.0% | 98.3 | 110.6 |
| UTA | 62 | 33-29 | 53.2% | 95.3 | 106.1 |
| ATL | 62 | 31-31 | 50.0% | 97.2 | 106.5 |
| DET | 61 | 24-37 | 39.3% | 95.5 | 102.9 |
| HOU | 61 | 38-23 | 62.3% | 97.8 | 111.2 |
| MIN | 60 | 15-45 | 25.0% | 97.3 | 106.0 |
| NYK | 56 | 20-36 | 35.7% | 95.1 | 105.5 |
| IND | 52 | 26-26 | 50.0% | 97.4 | 105.7 |
| GSW | — | — | — | — | — |