Does the NFL still test for cannabis?

Yes — but with major changes since 2020. Under the March 2020 NFL-NFLPA CBA, suspensions for positive cannabis tests were eliminated and the testing window was narrowed to roughly two weeks at training camp. The December 2024 modification raised the THC threshold from 150 to 350 ng/mL and replaced game-check fines with fixed-dollar amounts ($15,000 first offense, $20,000 second). Effectively, a positive test no longer threatens an NFL career — it triggers a fine.

Did the NBA remove cannabis from its drug-test list?

Yes. The April 26, 2023 NBA-NBPA CBA (effective July 1, 2023, runs through 2029-30) is unequivocal: "Marijuana will be removed from the Prohibited Substances List." Players may also passively invest in cannabis companies (≤50% ownership) and actively promote CBD-only brands. NBA testing has not resumed since the 2020 bubble.

What is WADA's cannabis rule for Olympic athletes?

WADA prohibits cannabis in-competition only at a urinary 11-nor-9-carboxy-THC threshold of 150 ng/mL (with a 180 ng/mL Decision Limit). The "in-competition" period begins at 11:59 p.m. the day before competition. Out-of-competition cannabis use is not a violation — but heavy out-of-competition use can still produce an in-competition Adverse Analytical Finding because of THC-COOH's long persistence. WADA retained cannabis on the 2026 Prohibited List S8 citing "spirit of sport" criteria.

How long do I need to stop using cannabis before a tested event?

Avery Collins's documented protocol — 5 weeks for a moderate-to-heavy cannabis user — has held up across multiple WADA-protocol post-race tests. Light/occasional users may need only 2-3 weeks. Heavy daily users may need 4-6 weeks. Body-fat percentage matters less than total-use intensity because THC stored in adipose tissue can re-mobilize during fasted training, weight cuts, or rapid weight loss — occasionally turning a "should-be-clean" out-of-competition use into an in-competition positive.

Is CBD safe for athletes to use?

CBD itself was removed from the WADA Prohibited List effective January 1, 2018, and is permitted under every major league's policy. The risk is THC contamination: Bonn-Miller et al. (JAMA 2017) tested 84 online CBD products and found THC in 21% of samples; 69% were mislabeled overall. Multiple UFC, MMA, and Olympic positive tests have been traced to contaminated CBD. Use only NSF Certified for Sport or Informed Sport batch-tested products, and verify the lot number against the active database before purchase.

Does cannabis improve athletic performance?

No. The performance-science consensus is clear: cannabis (THC) is not ergogenic. It raises resting and submaximal heart rate, modestly bronchodilates, mildly impairs reaction time and coordination, and shortens time-to-exhaustion. The Doping Authority Netherlands publicly stated cannabinoids "most likely have a negative impact on athletic performance." The Burr & Cheung 2021 systematic review for the Gatorade Sports Science Institute concluded that no quality evidence supports ergogenic claims for THC. CBD shows preliminary evidence for sleep, anxiety, and inflammation but is not performance-enhancing.

Cannabis & Athletes — The Policy, the Science, the Cases

Pro leagues have decoupled from anti-doping orthodoxy: the NBA removed cannabis in 2023, MLB in 2019, the NCAA in 2024, the NFL replaced suspensions with fines. WADA still prohibits in-competition. This site exists to help athletes, coaches, and sports-medicine teams navigate the fragmented rulebook with evidence — not marketing.

League-by-League Rules Washout Protocols

26%

NCAA student-athletes reporting past-year cannabis use, 2022-23 (NCAA, Jan 2024)

350

NFL THC-COOH threshold ng/mL since Dec 2024 (was 35 in 2014)

150

WADA in-competition threshold ng/mL (raised from 15 in 2013)

21%

Online CBD products containing THC despite labels (Bonn-Miller, JAMA 2017)

What this site covers

Eight focused areas, each grounded in peer-reviewed research and official league/anti-doping documents.

Sports & Leagues

League-by-league cannabis testing rules: NFL fines, NBA removal, MLB Charlotte's Web partnership, NHL SABH, NCAA D-I removal, WADA in-competition ban, UFC's CSAD transition, state athletic commissions.

Compare leagues →

Performance Science

What the evidence actually shows: THC is not ergogenic and is mildly performance-impairing. CBD evidence for sleep, anxiety, and inflammation. The endocannabinoid theory of the runner's high.

See the evidence →

Drug Testing

Thresholds (35, 150, 350 ng/mL), in- vs out-of-competition definition, washout protocols, hair vs urine vs blood vs saliva, NSF Certified for Sport, Informed Sport, TUE pathway.

Plan your washout →

Endurance Culture

Ultrarunning (Avery Collins, "at least half" use), cycling (Floyd's of Leadville), climbing's Yosemite roots, the BJJ/10th Planet/Joe Rogan ecosystem, and the 420 Games event series.

Read the culture →

Famous Cases

Rebagliati 1998, Phelps 2008, Williams & Gordon, Diaz 2015, Richardson 2021, Griner 2022. The athlete cases that drove every major league policy reform — what happened, and what changed.

The cases →

Special Populations

College athletes (NCAA, NIL, state-law overlay), high school and youth (Meier 2012 IQ, Di Forti 2019 psychosis), international and Olympic, para-athletes, women's pro sports, the WNBA-NBA asymmetry.

By population →

Resources & Brands

NSF Certified for Sport CBD products, athlete-founded cannabis brands (TYSON 2.0, Primitiv, Viola, Highsman), Athletes for CARE, USADA Athlete Express, the November 2026 federal hemp cliff.

Verified products →

About This Site

Why we exist, our editorial standards, the sources we use (WADA, USADA, NCAA, peer-reviewed sports medicine, named clinicians), and what we refuse to do — sell products or take industry money.

Our methodology →

Why this site exists

An NCAA Division I gymnast in California, a WADA-tested Olympic cyclist, an NFL practice-squad lineman, and a Saturday-morning recreational marathoner all face fundamentally different cannabis rules — yet most cannabis-and-sports content treats them interchangeably. The other half of the content is dispensary marketing or "What If Marijuana Made You a Better Athlete?" clickbait. Neither serves the athlete trying to make an informed decision.

This site occupies the middle ground. It tracks actual league policy as published by NFLPA, NBPA, MLB, USADA, WADA, and the NCAA Sport Science Institute — and updates when those documents change. It cites peer-reviewed research on performance, recovery, and CBD — and flags evidence as preliminary when it is. It names the actual cases that drove reform, the actual products that are NSF Certified for Sport, and the actual washout windows athletes have used in practice.

What you will not find here: product reviews, dispensary affiliate links, advocacy fundraising, or "best strain for athletes" lists. We sell nothing, take no industry money, and have no opinion about whether you should use cannabis at all — only the most useful information available for the decision you make.

The starting questions athletes ask

Part of the TryCannabis.org Cannabis Education Network

CannabisForAthletes.org is the network's demographic-focused site for the athlete audience. Companion sites cover the broader cannabis landscape:

TryCannabis.org — the main hub: state programs, dispensaries, history, policy
CannaScience.org — graduate-level pharmacology and the underlying science
CannabisVeterans.org — deeper VA and PTSD coverage for veteran athletes
CannabisForSeniors.org — companion demographic site for the 50+ audience (relevant for masters athletes)