#19 Winter
Winter was in the midst of a feud with IMPACT Knockouts Champion Mickie James when she won the title twice; the first time at Hardcore Justice on 7th August 2011. 18 days later, she was defeated by James only to win again at No Surrender. Her second and final reign lasted 35 days before she was again defeated by James.
#18 The Hot Mess, Laurel Van Ness
After Gail Kim vacated the championship due to injury, Laurel Van Ness faced off against Rosemary for the vacated IMPACT Knockouts title. Van Ness won her first title on 8th November 2017. She had previously asked for her release from the company, but remained for 65 days before losing to Allie. She returned to IMPACT at this year's Slammiversary.
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#17 Jade enters the Dollhouse
After making brief appearances for TNA / IMPACT as Mia Yim, she returned as part of the Dollhouse, now known as Jade, teaming with Marti Bell in April 2015. They aligned themselves with Taryn Terrell feuding with Gail Kim, Awesome Kong, and Brooke. Jade won the Knockouts Championship in a three-way match between champion Gail Kim and Madison Rayne. Her reign lasted 87 days, ending at Slammiversary at the hands of Sienna.
#16 Tara makes an IMPACT in TNA
The former Victoria in WWE debuted in TNA / IMPACT as Tara in 2009. During her time with the company, she held the Knockouts Championship five times for a collective 222 days. Her first title reign came on 25th June 2009 after defeating Angelica Love. Her next title reign lasted for 15 days during her feud with ODB. The two traded the title until 17th January 2010 when Tara entered her third reign. After 78 days, she lost the title to Angelica Love.
Her fourth reign began at Bound for Glory on 10th October 2010. This lasted a day as she allowed Madison Rayne to regain the title. Her fifth and final championship reign lasted 104 days, starting at Bound for Glory on 14th October 2012.