Currently trailing Le Cléac'h by 67 nm, the advantage is with Thomson as the pair prepare to pick their way through the complicated weather thrown at them by the North Atlantic.
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In the past 48 hours Le Cléac'h has lost more than 100 miles to Thomson, largely due to the widening of the Doldrums.
They are not really getting out of the doldrums. It is rather the latter which is going to retract and gradually free them.
From today, a light easterly wind will settle on the zone, allowing both leaders to progress more regularly northward.
What's more it's going to be all on starboard, the tack where Thomson can use his foil, and were his boat is quick in the nominal, low speed foiling conditions.
The ball is very much in Alex's court – he's behind and can watch what happens to Le Cléac'h.
It makes for a very interesting last 10 days for the leaders.
With an ETA in Les Sables d'Olonne tentatively pencilled in for 17 January.
LEADING POSITIONS at 15:00 hrs UTC Monday:
1. Armel Le Cléac’h on Banque Populaire 2,777 nm - sailing at 13 knots
2. Alex Thomson on Hugo Boss - DTL 88 nm - sailing at 11 knots
3. Jeremie Beyou on Maitre Coq - DTL 582 nm - sailing at 12 knots
4. Jean-Pierre Dick on StMichel-Virbac - DTL 1,375 nm
5. Yann Elies on Quigunnier - DTL 1,472 nm
6. Jean Le Cam on Finistere Mer Vent - DTL 1,479 nm
7. Louis Burton on Bureau Vallee - DTL 2,615 nm
Fleet spread is now 9,070 nm back to Sebastien Destremau in 18th.
Eleven have now retired from the race.
9 January 2017 6:20 GMT