Tour de France 2026: Nighttime doping controls reignite anti-doping debate
Nighttime anti-doping tests during the 2026 Tour de France awakened several riders, including Tadej Pogačar and Jonas Vingegaard. The controls, aimed at combating micro-dosing, have sparked criticism over their effectiveness and impact on athletes.
Tour de France 2026: Nighttime controls spark division
The night of July 20-21, 2026, will be remembered for an unusual series of anti-doping controls during the Tour de France. Several riders, including race leader Tadej Pogačar and his rival Jonas Vingegaard, were awakened in the middle of the night to undergo tests. Pogačar was tested at five in the morning, Vingegaard at two. The latter withdrew from the race the following day, though his departure was reportedly not directly linked to these controls.
The challenge of micro-dosing
These nighttime tests aim to counter a particularly hard-to-detect doping method: micro-dosing. This technique involves ingesting very small amounts of banned substances, such as EPO, growth hormone, or testosterone. The goal is to benefit from performance-enhancing effects while avoiding detection thresholds in standard tests.
Jonathan Vaughters, manager of the EF Education-EasyPost team and a former rider, supports this approach. According to him, these unexpected controls could deter cheaters. For Vaughters, a disrupted night’s sleep is a small price to pay for restoring the sport’s credibility.
A legacy weighing on today’s riders
Modern cycling is still paying for the mistakes of the past. Vaughters publicly apologized to today’s riders, acknowledging that their generation bears the consequences of doping practices from previous years. David Lappartient, president of the Union Cycliste Internationale (UCI), also emphasized that cycling remains haunted by its history, which explains the persistent doubts.
The International Testing Agency (ITA), responsible for conducting tests on behalf of the UCI, insists on the exceptional nature of these nighttime controls. They are only permitted under specific circumstances, such as combating micro-dosing, and are not targeted at any particular rider.
Criticism of tests’ impact on riders
The Cyclistes Professionnels Associés (CPA), the riders’ union, strongly opposes these controls. Its president, Adam Hansen, deems them dangerous and unnecessary. He points out that riders partly fund these tests—a legacy of past mistakes—and that nighttime awakenings disrupt their recovery, increasing the risk of accidents.
Hansen proposes an alternative: reducing the frequency of controls while improving their accuracy. According to him, investing in laboratories capable of detecting the smallest traces of banned substances would be more effective than multiplying intrusive tests.
A strict legal framework for exceptional measures
In France, anti-doping controls conducted between 11 p.m. and 6 a.m. require special authorization. The ITA obtained this exemption from the Paris Public Prosecutor’s Office, in accordance with Article L232-14-4 of the French Sports Code. The precise reasons for these controls have not been disclosed, but the UCI and ITA emphasize their exceptional nature.
These tests aim to introduce uncertainty among riders tempted by micro-dosing. No positive results have been announced during the 2026 Tour, which, according to Lappartient, confirms the absence of doping cases in this edition.
Altitude and doping: A blurred line
Distinguishing between the effects of altitude training and micro-dosing of EPO remains a challenge for anti-doping authorities. Studies show that blood markers, such as hemoglobin mass, can be similar in both cases. Dr. Paul Robach, a specialist in altitude effects, notes that this confusion complicates the detection of doping practices.
Altitude training, which is legal, produces benefits comparable to those of doping. A study found that blood profiles after micro-dosing could be nearly identical to those observed after prolonged exposure to hypoxia. This ambiguity poses a major challenge for anti-doping authorities.
Toward modernizing control methods?
The ITA is exploring new avenues to improve doping detection. A study is underway on using cyclists’ power data as a complementary tool. Tested with five teams, this approach could support traditional methods, though some remain skeptical about its effectiveness.
The CPA advocates for reducing the number of tests while enhancing their precision. This strategy would allow for more effective targeting of cheaters while minimizing disruptions for riders. Debates over the balance between effectiveness and athlete well-being are far from over.
Key Points
- Nighttime anti-doping controls conducted between 11 p.m. and 6 a.m. during the 2026 Tour de France
- Tadej Pogačar and Jonas Vingegaard awakened for tests at five and two in the morning
- Micro-dosing, difficult to detect, motivates these exceptional controls
- No positive results announced during the 2026 Tour
- Nighttime controls require special authorization from the Paris Public Prosecutor’s Office
- BBC Sport - "Why are cycling's anti-doping tests being carried out at night?". (secondary)
- Guardian Sport - "UCI president backs night-time drug testing after Tour de France controversy". (secondary)
- Cyclingnews - "An altitude alibi: Does cycling's anti-doping system have a major loophole?". (secondary)
- Cyclingnews - "'I would rather lose sleep than lose credibility' – Jonathan Vaughters says Tour de France night-time testing could have stopped past doping – Full interview". (secondary)
Transparency: 4 sources (0 primary, 4 secondary). Verification: August 3, 2026.
Truthyx - August 3, 2026