Here are some Anaerobic tests and references that may help you relative to boxing and combative type sports. Please read below; Let me know if these helps;
Wingate Anaerobic Test Reference Values for Male Power Athletes (including Boxers)
Erin Coppin, Edward M. Heath, Eadric Bressel, and Dale R. Wagner
International Journal of Sports Physiology and Performance, 2012, 7, 232-236
A treadmill (Jaeger LE 500; Jaeger, Germany) test
Physiological Profiles of French savate Athletes
Duvallet Louis Alain, Duvallet Emilie, Lhuissier François, Beaudry Michele
Faseb Journal 2018 587.17 Abstract
Determination of aerobic and anaerobic power in elite taekwondo athletes through a sport specific test
2017 Rocha, Fernando Paulo Sebastião Faculdade de Ciências Sociais e Humanas Departamento de Ciências do Desporto
As Paul mentioned in his references, Wingate anaerobic test is the gold standard test to measure anaerobic performance, which is implemented on a cycle ergometer. The test output includes anaerobic power (max, mean, min), rpm (max, mean, min), anaerobic capacity, fatigue index, and total work. Wingate anaerobic test has been proven as the most reliable and valid test to assess anaerobic performance, especially for research purposes.