Pre-Tour revelations On 4 March 1998, a truck belonging to the Dutch team was seized by
customs officers in
Reims, France, revealing 104 vials of recombinant
erythropoietin (EPO), a drug with performance-enhancing effects. The two
mechanics in the truck were released and the vials were taken by the police, who said they had more "important matters" to be concerned with. During the
Critérium du Dauphiné Libéré, a race held two weeks before the start of the Tour,
Christophe Moreau of Festina tested positive for the anabolic steroid
mesterolone. The UCI accepted Festina's explanation that the positive test was a result of the influence of a team masseur, and Moreau was allowed to start the Tour de France. Three days before the start of the Tour, on 8 July,
Willy Voet, a
soigneur (team assistant) with the Festina squad, was stopped by customs officers driving along a back road on the
Franco–Belgian border. A routine check revealed that he carried a large quantity of performance-enhancing drugs with him. He was thereafter placed under arrest, initially claiming they were "for personal use". The following day, police carried out a search of Festina's headquarters in
Meyzieu, close to Lyon. On the day before the prologue, a judicial inquiry was opened by the public prosecutor's office and Voet was held for investigation, with the story also breaking to the media. The Tour's organisation as well as Festina were quick to dismiss the news as having nothing to do with the race.
Early stages in Ireland time trial around the streets of
Dublin, won by
Chris Boardman () Chris Boardman covered the route of the prologue time trial fastest with a time of 6:12.36 minutes, gaining his third Tour prologue victory. Olano finished second, four seconds slower. Third to sixth place went to Jalabert, Julich, Moreau, and Ullrich, all five seconds behind Boardman. Marco Pantani meanwhile had not bothered to preview the course and finished 181st out of the 189 starters, 48 seconds slower than the winning time. Boardman was awarded the yellow and green jerseys as the leader of both the general and points classification respectively.
Tom Steels outsprinted
Erik Zabel in stage 1's
bunch sprint finish. Steels came to the Tour with the full support of his squad for the sprints, unlike Zabel's who were focused on Ullrich's pursuit for overall victory.
Mario Cipollini (), a favourite for the stage win, was held up from the end when he was involved in a crash with his teammate,
Frédéric Moncassin. Steels took the lead of the points classification from Boardman, who retained the overall lead. rider
Ján Svorada was involved in a crash with to go, but was able to recover and win the bunch sprint finish. Zabel, who before the stage stood in eighth position overall, had collected enough time bonuses in the
intermediate sprints to take the yellow jersey.
Move to France and evolving doping scandal (
pictured in 1993), the leader of the team, which was expelled from the Tour after stage 6 following its management's admission to
doping. 's
Jens Heppner won stage 3 from a two-rider sprint with
Xavier Jan of , after the pair had escaped late from a nine-rider breakaway.
Bo Hamburger of , who won two of the three intermediate sprints whilst in the escape group, took the overall lead. Svorada took the lead of the points classification, while Festina's
Pascal Hervé led the mountains classification. Two-time stage winner Cipollini dropped out during this stage.
Pyrenees mountain pass (
pictured) saw a total of 30 riders fall in the wet and foggy conditions. Stage 10 saw the race move into the high mountains, starting with the Pyrenees. On the way to
Luchon, four mountain passes had to be crossed: the
Col d'Aubisque, the
Col du Tourmalet, the
Col d'Aspin and finally the
Col de Peyresourde, followed by of downhill to the finish line. A total of 30 riders fell on the wet and foggy descent of the Aubisque, including overall contenders Olano, Jalabert and Francesco Casagrande, with the latter being one of six that retired from the race. As the field reached the bottom of the climb to the finish at Plateau de Beille, Ullrich had a
tyre puncture. Pantani was unaware of this and was about to attack, before being stopped by his teammate
Roberto Conti, as it breaches the
unwritten rules of the peloton to attack a rider when they have mechanical issues. Having waited for Ullrich to regain contact, Pantani waited until from the finish to attack, and after passing the sole breakaway rider,
Roland Meier (), he took the stage win. Following Meier and a group of five led by Julich, Ullrich crossed the finish line in eighth place, 1:40 minutes down on Pantani. After the two stages in the Pyrenees, Ullrich led the general classification, 1:11 minutes ahead of Julich, with both Jalabert and Pantani 3:01 minutes down in third and fourth. Olano, a notable pre-race favourite, withdrew from the Tour halfway through the stage.
Transition stages and rider unrest (
pictured in 1993) of the team was an influential figure in both of the Tour's rider
sit-down protests during stages 12 and 17. After the rest day, stage 12 followed a flat course between
Tarascon-sur-Ariège and
Cap d'Agde. The riders were unhappy with the looming expulsion of the TVM team, against which the police had renewed their investigation which was started in March. Likewise, journalists going through waste containers at team hotels, searching for evidence of performance-enhancing drugs, drew anger from the peloton. Some riders also spoke out against the announcement by the UCI to move forward the introduction of new health tests. As the riders lined up with their bikes at the start of the stage, Jalabert broadcast a statement on their behalf on the race's official station, Radio Tour, saying "We are fed up with being treated like cattle. So we are going to behave like cattle." Following this, the majority of the riders sat down on the road and refused to continue, while others willing to start stood around, unsure what to do. The instigators of the strike were Jalabert, Blijlevens,
Max Sciandri (), and
Prudencio Induráin () as well as ONCE's team manager
Manolo Saiz. Leblanc negotiated with the team managers and they voted 14–6 in agreement to begin the stage. The peloton and vehicles slowly set off, but a Jalabert-led group of about 40 refused. They eventually relented and caught up to the rest ahead, and the race started, exactly two hours after the scheduled time. It was at this point that the stage was officially started. After about , Jalabert then went on the attack over a short climb with his brother
Nicolas () and
Bart Voskamp (TVM), with the group building up a lead of about five minutes. In the press conference after, Ullrich was asked whether his team would be capable of supporting him in the Alps and, after initially appearing upbeat, he ended his response with: "Even if I don't have the yellow jersey in Paris, I want to give my compliments to the team". Pantani, who still stood at fourth overall, was quoted saying: "My main goal now is to win in Les Deux-Alpes." and the lead of the mountains classification was passed to the second placed rider, Rinero. The penultimate stage saw the last individual time trial of the race to
Le Creusot. Ullrich won the stage, 1:01 minutes ahead of Julich, to move into second place overall. Pantani finished the stage third, 2:35 minutes behind Ullrich, effectively sealing his victory in the general classification. The final stage on the Champs-Élysées in Paris was won by Steels from a bunch sprint, while Pantani finished safely in the peloton to secure the Tour win. Ullrich ended the Tour in second place, with a deficit of 3:21 minutes, with Julich a further 47 seconds behind in third. Pantani was greeted on the podium by
Felice Gimondi, who had been invited by Jean-Marie Leblanc to present to the crowd the first Italian winner since his own victory in
1965. Zabel won his third consecutive points classification with a total of 327, 97 ahead of O'Grady in second. Although Pantani won two high mountain stages, the mountains classification was won by the more consistent Rinero, whose total of 200 points was 25 more than that of second-placed Pantani. Due to the high number of abandons because of the Festina affair, only 96 riders reached the finish in Paris. If a rider returned a value higher than 50 per cent, they were not allowed to compete for a two-week period. However, as cycling journalist
Alasdair Fotheringham noted, "the 50 per cent threshold became a target to aim for" instead of a reliable deterrent to using EPO. The doping scandal that occurred throughout the Tour became known as the
Festina affair, starting with the arrest of Voet. Initially, the suspicion only surrounded the Festina and TVM teams, but later investigations and retrospective tests revealed the doping abuse was far more widespread. Even while the race was running, media sources coined nicknames for it, such as the "Tour de Farce" or "Tour du Dopage" (Tour of Doping). Following Festina's expulsion from the race, the police investigation against the TVM team in March was made public by
Le Parisien and the case reopened. Many riders in the Tour reacted to the developing scandal by hiding or destroying evidence of doping.
Rolf Aldag () said he flushed his doping products down the toilet before the race began in Dublin. His teammate Bjarne Riis said in his autobiography that he disposed of his vials of EPO in the toilet after stage 3. Likewise, the U.S. Postal team flushed their drugs down the toilet following Voet's arrest, according to Tyler Hamilton. According to Jörg Jaksche, the Polti squad hid their supply of EPO in a vacuum cleaner on the team bus; Jaksche believed that most Italian teams kept their drugs during the race as well.
Philippe Gaumont claimed in his autobiography that the Cofidis team were told by team management to destroy their substances on the day the Festina team was expelled, with the riders subsequently going into a forest to dispose of the evidence. Julich said he quit doping altogether during the 1998 Tour. After their arrests, Voet, Roussel, and Rijckaert gave the police confessions detailed the doping practices at Festina. Roussel said that one per cent of the team's budget (around €40,000) was used to pay for EPO and
human growth hormones. The Festina riders were placed under custody and brought into individual prison cells, and allegedly subjected to
cavity searches. On 24 July, four Festina riders confessed to taking performance-enhancing drugs, with the first being Alex Zülle. The only riders to deny the allegations were Virenque and
Neil Stephens. Examinations carried out on the nine Festina riders on 23 July, with the results being published on 28 November, revealed that eight riders took EPO and four amphetamines. Virenque was the only rider not to test positive in these tests. On 23 July, the Tour's rest day, TVM's manager Cees Priem and team doctor Andrei Mikhailov were arrested by the police. At the beginning of August, team
soigneur Johannes Moors was taken into custody as well. Priem and Moors were released on 10 August. The TVM riders were also questioned by the police on 4 August and held for about 12 hours, before they were released. However, no banned substances were found during the raid at TVM's team hotel during the Tour. At ONCE and BigMat, police did find performance-enhancing drugs during their raids. ONCE maintained that the substances were for medical use of the team staff. Police called in twelve riders from BigMat for questioning along with the
directeur sportif and some
soigneurs a week after the end of the Tour because of "330 bottles and ampoules of drugs" found in the team's truck. The legal investigation into doping at the 1998 Tour was given to judge Patrick Keil shortly after the race concluded. He handed in his 5539-page report on the matter at the beginning of July 1999, which laid the groundwork for subsequent legal proceedings against team staff and riders. Virenque confessed during a court hearing concerning the Festina affair, on 24 October 2000. Virenque received a nine-month racing ban and a suspended prison sentence. Voet was sentenced to a suspended ten months in prison and a fine of 3,000 franc. Roussell received a one-year suspended sentence and a 50,000 franc fine. Lesser verdicts were handed out to "two masseurs, the team's logistics manager, the team doctor at the Spanish ONCE team, Nicolas Terrados, and two pharmacists". During the Tour, 108 tests for performance-enhancing drugs were carried out by France's main anti-doping laboratory in
Châtenay-Malabry. All of them were negative. In 2004, 60 remaining anti-doping samples given by riders during the 1998 Tour were tested retrospectively for recombinant EPO by using three recently developed detection methods. The tests produced 44 positive results and 9 negatives, with the remaining 7 samples not returning any result due to sample degradation. At first, the rider names with a positive sample were not made public, as it had only been conducted as scientific research. In July 2013, the anti-doping committee of the
French Senate decided it would benefit the current doping fight to shed full light on the past, and so decided – as part of their "Commission of Inquiry into the effectiveness of the fight against doping" report – to publish all sample IDs along with the result of the retrospective test. This revealed, that the 9 negative samples belonged to 5 riders (of whom two nevertheless had confessed using EPO in that Tour), while the 44 positive samples belonged to 33 riders – including race winner Pantani, Ullrich, Julich, and Zabel. Julich had already admitted in 2012 that he had used EPO from August 1996 to July 1998. ==Classification leadership and minor prizes==