CASP organizers are grateful to the independent assessors, who carried out the evaluation of predictions and by so doing gauged the state-of-the-art in the field.

Experiment	Comparative Modeling	Fold Recognition (Threading)	Ab initio (New Fold)
CASP1 (1994)	Michael James University of Alberta	Shoshana Wodak Free University of Brussels	Fred Cohen Univ. of California, San Francisco
CASP2 (1996)	Janet Thornton University College London	Michael Levitt Stanford University	Arthur Lesk University of Cambridge
CASP3 (1998)	Alwyn Jones Uppsala University	Alexey Murzin MRC Centre, Cambridge	Christine Orengo University College London
CASP4 (2000)	Anna Tramontano University of Rome	Manfred Sippl University of Salzburg	Arthur Lesk University of Cambridge
CASP5 (2002)	Anna Tramontano University of Rome	Nick Grishin University of Texas	Rob Russel EMBL, Heidelberg
CASP6 (2004)	Alfonso Valencia CNB, Madrid	Roland Dunbrack Fox Chase Cancer Center, Philadelphia	BK Lee NCI/NIH, Bethesda
	Template-based modeling	High resolution modeling	Template-free modeling
CASP7 (2006)	Torsten Schwede University of Basel	Randy Read University of Cambridge	Neil Clarke Genome Institute of Singapore
	Template-based modeling	Refinement and physics-based modeling	Template-free modeling	Prediction of function, domains and contacts
CASP8 (2008)	Jane Richardson Duke University, USA	Ken Dill Univ. of California, San Francisco, USA	Joel Sussman The Weizmann Institute of Science, Israel	Michael Tress CNIO, Madrid, Spain
CASP9 (2010)	Torsten Schwede University of Basel, Switzerland	Ken Dill Univ. of California, San Francisco, USA	Nick Grishin University of Texas, Dallas, USA
	Template-based modeling	Refinement	Template-free modeling	Contact-assisted prediction
CASP10 (2012)	Gaetano T. Montelione Rutgers University, USA	David T. Jones University College London, UK	BK Lee NCI/NIH, Bethesda, USA	BK Lee NCI/NIH, Bethesda, USA
CASP11 (2014)	Roland Dunbrack Fox Chase Cancer Center, Philadelphia, USA	Roland Dunbrack Fox Chase Cancer Center, Philadelphia, USA	Nick Grishin University of Texas, Dallas, USA	Nick Grishin University of Texas, Dallas, USA
	Assembly	Refinement	Template-free; Contact-assisted	Contacts	Biological relevance
CASP12 (2016)	Guido Capitani, Aleix Lafita Paul Scherrer Institut (PSI), Villigen, Switzerland	Franceso Gervasio University College London, UK	Matteo Dal Peraro EPFL, Lausanne, Switzerland	Alexandre Bonvin Utrecht University, Netherlands	Russ Altman (assessor and coordinator) Stanford University, USA
	Assembly	Template-based modeling; Refinement	Template-free modeling	Contacts; Xlink-assisted	SAXS-assisted	NMR-assisted	Accuracy assessment
CASP13 (2018)	Jose Duarte RCSB, San Diego, USA	Randy Read Cambridge University, UK	Matteo Dal Peraro EPFL, Lausanne, Switzerland	Andras Fiser Albert Einstein College of Medicine, New York, USA	Susan Tsutakawa; Greg Hura Lawrence Berkeley Lab, USA	Gaetano Montelione Rutgers University, USA	Chaok Seok Seoul National University, South Korea
	Assembly	High accuracy modeling	Template-free modeling	Contacts	Refinement	Accuracy assessment	Biological Relevance
CASP14 (2020)	Ezgi Karaca Izmir Biomedicine and Genome Center, Turkey	Andrei Lupas Max Planck, Tuebingen, Germany	Nick Grishin UT Southwestern, Dallas, TX, USA	Alfonso Valencia Barcelona Supercomputing Center, Spain	Daniel Rigden University of Liverpool, UK	Chaok Seok Seoul National University, South Korea	Sandor Vajda; Dima Kozakov Boston University, MA; Stony Brook University, NY, USA
	Assembly	Single protein /domain	Accuracy assessment	Ligands	RNA
CASP15 (2022)	Ezgi Karaca Izmir Biomedicine and Genome Center, Turkey	Daniel Rigden University of Liverpool, UK	Gabriel Studer Biozentrum, Basel, Switzerland	Patrick Walters Relay Therapeutics, Cambridge, MA, USA	Rhiju Das Stanford University, CA, USA
	Protein structure, single and assembly	Ensembles	Accuracy assessment	Ligands	RNA
CASP16 (2024)	Nick Grishin University of Texas, Southwestern, USA	Gaetano Montelione Rensselaer Polytechnic Institute, Troy, NY, USA	Randy Read University of Cambridge, UK	Michael Gilson University of California, San Diego, CA, USA	Rhiju Das Stanford University, CA, USA

According to CASP policy, assessors are not allowed to be directly involved in the organization of the experiment, nor can they take part in the experiment in the role of predictors.