Catherine Chang — NBA Referee Stats

Catherine Chang averages 12.0 calls per game across 1 games in our historical sample: 4.00 on home teams and 8.00 on visitors.

Individual calls attributed to the official, not the full crew’s totals. Historical samples exclude preseason.

Sample dates: 2026-11-01 to 2026-11-01. How calls per game are calculated.

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Catherine Chang

Catherine Chang

2 teams analyzed

Games 1
Calls / game 12.0
Home fouls (on) 4.00
Away fouls (on) 8.00
ATS cover 0-1 (0.0%)
Over rate 1-0 (100.0%)

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Catherine Chang: home vs. visitor calls

Average fouls called on each side per game

4.0 calls on home teams and 8.0 on visitors per game, across 1 games. Home4.00 Visitors8.00 08.0

1 games. Bars start at zero and share a scale. These are individual calls, not crew totals or an accuracy rating.

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Betting

ATS cover rate

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Betting

ATS performance by team

Compare how often each team covered the spread in this official’s games.

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Betting

O/U over rate

Compare the share of games finishing over the total with other officials.

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Betting

Over/under performance by team

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Foul analysis

Foul type distribution

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Foul analysis

Position-based fouls

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Foul analysis

Team foul call differential

Compare foul-call differences across teams.

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Foul analysis

Fouls called for vs on

Compare fouls benefiting each team versus fouls assessed against them.

Compare calls on home and visiting teams.

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Foul balance

Fouls called for vs on by team

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Home vs away

Home-away foul call differential by team

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Consistency

Team foul call differential volatility

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Bias vs volatility

Avg foul call differential vs volatility

Bubble size scales with games officiated.

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Timing

Fouls on home vs away teams

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Game context

Home score margin when fouls happen

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Game context

Home foul count differential when fouls happen

Positive means the home team already has more fouls.

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How to read these referee statistics

Foul rates and team splits

Calls per game counts each foul attributed to the official once. Home and visitor splits identify the team penalized. Compare sample sizes alongside rates: a small sample can swing sharply after a single game.

ATS and over/under charts

ATS means against the spread; over/under compares the final total with the betting line. These charts describe results in games the official worked. They do not isolate the official’s effect or guarantee a future result.

Put the numbers in context

Team styles, opponents, and game situations also influence fouls. A difference between home and visitor calls is not a measure of officiating accuracy or proof of bias.

Read our referee analysis methodology → Compare all NBA officials → Explore matchup analysis →