The Dutch rider’s explosive late attack overturned Kasia Niewiadoma-Phinney’s advantage and handed her an eight-second lead before the final stage, while accusations of blocking added fresh tension to an already fierce rivalry.

Demi Vollering delivered a devastating late attack on the roads above Nice to seize control of the Tour de France Femmes, taking both the eighth-stage victory and the yellow jersey from Kasia Niewiadoma-Phinney with only one day of racing remaining.

The Dutch rider launched her decisive move on the closing climb toward Nice and rapidly opened a gap on the leading general-classification group, transforming a race that had appeared to be tilting in Niewiadoma-Phinney’s favour after her commanding performance on Mont Ventoux the previous day.

Vollering crossed the line alone after 171.9 kilometres from Sisteron, while Elisa Longo Borghini and Niewiadoma-Phinney followed 17 seconds later. The combination of the time gap and finishing bonuses moved Vollering into the overall lead by just eight seconds.

It was a dramatic reversal.

Only 24 hours earlier, Niewiadoma-Phinney had produced one of the most impressive performances of the Tour, attacking on Mont Ventoux and taking the yellow jersey with a 15-second advantage over Vollering.

Vollering later acknowledged that she had been too passive during that stage.

She did not repeat the mistake in Nice.

With roughly six kilometres remaining, the 2023 Tour champion accelerated on the steep final climb and immediately placed her rivals under pressure. The attack quickly created separation, and Vollering continued to extend her advantage on the descent toward the finish.

It was precisely the kind of aggressive move she had been expected to make throughout the decisive mountain stages.

Instead, she waited until one of the final opportunities of the race.

The result has transformed Sunday’s concluding stage into a potentially explosive battle for overall victory.

Vollering now leads Niewiadoma-Phinney by eight seconds, while Marlen Reusser sits more than a minute further back in third place.

For Vollering, the yellow jersey represents both a tactical triumph and a remarkable return to the front of a race that has repeatedly shifted between contenders.

She has now worn yellow five times during this year’s Tour, becoming the fifth different rider to lead the general classification.

But the sporting drama was quickly overshadowed by controversy.

Niewiadoma-Phinney was visibly angry after the finish and accused Vollering’s FDJ United-Suez teammate Célia Gery of deliberately obstructing her during the decisive climb.

The Polish rider claimed that Gery moved across her line at a critical moment as Vollering attacked, preventing her from reacting immediately.

The incident was examined by race officials, while Vollering disputed the suggestion that her teammate had intentionally interfered with her rival.

The accusation adds another layer to one of the most intense rivalries in modern women’s cycling.

Vollering and Niewiadoma-Phinney have already produced one of the closest finishes in Grand Tour history.

In 2024, Niewiadoma won the Tour de France Femmes by just four seconds after surviving Vollering’s dramatic attack on Alpe d’Huez.

That margin remains part of the psychological background to their rivalry.

Two years later, the pair are once again separated by only seconds, but this time Vollering is the rider defending yellow.

The eighth stage had initially appeared capable of producing a very different outcome.

Maëva Squiban and Loes Adegeest were among those who attempted to animate the race from the breakaway, but Squiban crashed and the escape eventually lost momentum as the general-classification teams prepared for the difficult final kilometres.

Then came Vollering’s attack.

The timing was especially effective because the decisive climb was not expected to carry the same strategic importance as the major classified mountains that had dominated attention earlier in the race.

Yet its steep gradients and proximity to the finish created exactly the conditions required for a late ambush.

Once Vollering accelerated, hesitation behind her proved costly.

Longo Borghini and Niewiadoma-Phinney were unable to close the gap before the summit, and the Dutch rider used her descending ability to preserve the advantage into Nice.

She completed the stage in 4hr 2min 39sec.

The result also underlines the extraordinary unpredictability of this year’s Tour.

The yellow jersey has repeatedly changed shoulders, while crashes, extreme heat, tactical errors and unexpected attacks have reshaped the general classification almost daily.

Defending champion Pauline Ferrand-Prévot withdrew before Saturday’s stage after struggling with health problems during the race, removing another major contender from the battle.

Attention is now entirely focused on Vollering and Niewiadoma-Phinney.

Sunday’s final stage around Nice covers 99.2 kilometres and includes repeated climbing, with the riders scheduled to tackle the Col d’Eze four times.

An eight-second advantage offers almost no room for tactical comfort.

Time bonuses, attacks on the climbs or even a small split in the peloton could reverse the order once again.

For Vollering, the objective will be to control the race while avoiding isolation.

For Niewiadoma-Phinney, there is little ambiguity.

She must attack.

The Polish rider has already demonstrated that she possesses the form to put Vollering under pressure in the mountains, particularly after her decisive ride on Mont Ventoux.

But overturning an eight-second deficit on a short final stage will require both strength and tactical precision.

The bitter exchange after stage eight is therefore unlikely to reduce the aggression between them.

If anything, it may intensify it.

Vollering’s late move in Nice has transformed what might have been a controlled defence of yellow into a final-day confrontation between two riders with a long competitive history and almost nothing separating them.

Two years after four seconds decided the Tour between them, the women’s race is once again poised on an extraordinarily narrow margin.

This time the gap is eight.

And after one of the most turbulent Tours in recent memory, even that may prove nowhere near enough.