They didn’t hold the top spot all year, but Sara Errani and Roberta Vinci rose to the top again in the summer and now, at the end of the 2014 season, they share WTA Year-End World No.1 presented by Dubai Duty Free in doubles.

Errani and Vinci were the tour’s dominant doubles team most of the year, and most importantly for the year as a whole, winning five WTA doubles titles together, including Grand Slam titles at the Australian Open and Wimbledon.

That Wimbledon triumph gave Errani and Vinci a Career Doubles Grand Slam, making them just the fifth doubles team in the Open Era to achieve the feat after Martina Navratilova and Pam Shriver, Kathy Jordan and Anne Smith, Gigi Fernández and Natasha Zvereva, and, of course, the Williams sisters.

There’s more – having already finished as co-No.1s in 2013, repeating the feat in 2014 makes them just the second team in WTA history to finish multiple years as co-No.1s, after Cara Black and Liezel Huber. The only other team to achieve the feat was Lisa Raymond and Samantha Stosur (who did it once in 2006).

This will be Errani and Vinci’s 60th career week as co-World No.1s in doubles together, the second-longest stint as co-No.1s in WTA history. Here’s the full list in order of most weeks:

127 weeks – Cara Black & Liezel Huber
60 weeks – Sara Errani & Roberta Vinci
39 weeks – Lisa Raymond & Sam Stosur
20 weeks – Liezel Huber & Lisa Raymond
10 weeks – Kveta Peschke & Katarina Srebotnik
8 weeks – Serena Williams & Venus Williams
7 weeks – Gisela Dulko & Flavia Pennetta
5 weeks – Hsieh Su-Wei & Peng Shuai
3 weeks – Lisa Raymond & Rennae Stubbs
3 weeks – Virginia Ruano Pascual & Paola Suárez

SOURCE: WTA