Six of those funds no longer exist; I've retained the previous data from 2018. They are shown on the chart with light blue bars and asterisks next to their ticker symbols. AQR has changed the benchmarks used for a number of the funds since 2018. I am using their benchmark data, so I am using whatever benchmark they are using today, even if it's different from the one they were using in 2018.
38 out of 48 AQR funds underperformed their benchmark, or 79%.
The average underperformance was -1.46% per year.

Key
AQRIX — Risk Parity Fund (now renamed "AQR Multi-Asset Fund")
QRHIX — Risk Parity II HV Fund
QRMIX — Risk Parity II MV Fund
QCPIX — Core Plus Bond Fund
ARCIX — Risk-Balanced Commodities Strategy Fund
QICLX — International Multi-Style Fund
QIRIX — International Relaxed Constraint Equity Fund
AQIIX — International Equity Fund
ANDIX — International Defensive Style Fund
*QEMLX — Emerging Momentum Style Fund
*QERIX — Emerging Relaxed Constraint Equity Fund
AZEIX — Emerging Defensive Style Fund
QEELX — Emerging Multi-Style Fund
QTELX — TM Emerging Multi-Style Fund
*QEMLX — Emerging Momentum Style Fund
AZEIX — Emerging Defensive Style Fund
AQGIX — Global Equity Fund
QLEIX — Long/Short Equity Fund
AIMOX — International Momentum Style Fund
ATIMX — TM International Momentum Style Fund
AIMOX — International Momentum Style Fund
*ANDIX — International Defensive Style Fund
*QIMLX — TM International Multi-Style Fund
*QLRIX — Large Cap Relaxed Constraint Equity Fund
AMOMX — Large Cap Momentum Style Fund
AMOMX — Large Cap Momentum Style Fund
ATMOX — TM Large Cap Momentum Style Fund
ATMOX — TM Large Cap Momentum Style Fund
AUEIX — Large Cap Defensive Style Fund
AUEIX — Large Cap Defensive Style Fund
QCELX — Large Cap Multi-Style Fund
QTLLX — TM Large Cap Multi-Style Fund
*QSRIX — Small Cap Relaxed Constraint Equity Fund
ASMOX — Small Cap Momentum Style Fund
ATIMX — TM International Momentum Style Fund
ATSMX — TM Small Cap Momentum Style Fund
QSMLX — Small Cap Multi-Style Fund
QSSLX — TM Small Cap Multi-Style Fund
QLEIX — Long/Short Equity Fund
ADAIX — Diversified Arbitrage Fund
AQMIX — Managed Futures Strategy Fund
ASAIX — Multi-Strategy Alternative Fund
QGMIX — Global Macro Fund
QMHIX — Managed Futures Strategy HV Fund
QMNIX — Equity Market Neutral Fund
*QRPIX — Alternative Risk Premia Fund
QSLIX — Style Premia Alternative LV Fund
QSPIX — Style Premia Alternative Fund
Additional note: all performance data is from AQR's website; for example, for AQRIX,

Differences from the benchmark were calculated by the technically correct "geometric difference," (1 + actual return) / (1 + benchmark return) - 1. In this case, 1.0562 / 1.1016 - 1 = -4.12%. This is slightly different from the result of simply subtracting the benchmark return from the actual return.