![ATP Challenger Tour on Twitter: "HISTORY in Calgary! @ivokarlovic becomes the oldest winner in #ATPChallenger history. The 39-year-old reigns at the @YYCNBChallenger on Sunday. More 👉 https://t.co/pcB99rWC7T https://t.co/IxvO4XNv5T" / Twitter ATP Challenger Tour on Twitter: "HISTORY in Calgary! @ivokarlovic becomes the oldest winner in #ATPChallenger history. The 39-year-old reigns at the @YYCNBChallenger on Sunday. More 👉 https://t.co/pcB99rWC7T https://t.co/IxvO4XNv5T" / Twitter](https://pbs.twimg.com/media/DqEOedCUwAADaeJ.jpg:large)
ATP Challenger Tour on Twitter: "HISTORY in Calgary! @ivokarlovic becomes the oldest winner in #ATPChallenger history. The 39-year-old reigns at the @YYCNBChallenger on Sunday. More 👉 https://t.co/pcB99rWC7T https://t.co/IxvO4XNv5T" / Twitter
![Kokkinakis wins Las Vegas Challenger title | 29 October, 2018 | All News | News and Features | News and Events | Tennis Australia Kokkinakis wins Las Vegas Challenger title | 29 October, 2018 | All News | News and Features | News and Events | Tennis Australia](https://www.tennis.com.au/wp-content/uploads/2018/10/Kokkinakis-Las-Vegas-Challenger.jpg)
Kokkinakis wins Las Vegas Challenger title | 29 October, 2018 | All News | News and Features | News and Events | Tennis Australia
![Austrian tennis player GERALD MELZER in action during semifinals of the MONETA Czech Open - ATP..., Stock Photo, Picture And Rights Managed Image. Pic. CKP-P201806080507601 | agefotostock Austrian tennis player GERALD MELZER in action during semifinals of the MONETA Czech Open - ATP..., Stock Photo, Picture And Rights Managed Image. Pic. CKP-P201806080507601 | agefotostock](https://previews.agefotostock.com/previewimage/medibigoff/e65098d3e84a55ef9db93fca00fd52cc/ckp-p201806080507601.jpg)
Austrian tennis player GERALD MELZER in action during semifinals of the MONETA Czech Open - ATP..., Stock Photo, Picture And Rights Managed Image. Pic. CKP-P201806080507601 | agefotostock
Mikael Torpegaard (DEN) vs. Marcel Granollers (ESP) 2018 ATP Challenger Tour Winnipeg Men's Singles Tennis Quarterfinals Full Match (13.7.18) - video Dailymotion
![Challenger Tour Weekly Recap: Leandro Riedi and Yosuke Watanuki with Two Titles in a Row - Last Word On Tennis Challenger Tour Weekly Recap: Leandro Riedi and Yosuke Watanuki with Two Titles in a Row - Last Word On Tennis](https://lastwordonsports.com/tennis/wp-content/uploads/sites/17/2022/11/gettyimages-1412276849-612x612-1.jpg)
Challenger Tour Weekly Recap: Leandro Riedi and Yosuke Watanuki with Two Titles in a Row - Last Word On Tennis
![Uruguayan tennis player PABLO CUEVAS in action during the 1st round of the MONETA Czech Open - ATP CHALLENGER TOUR in Prostejov, Czech Republic, on June 5, 2018. (CTK Photo/Ludek Perina Stock Uruguayan tennis player PABLO CUEVAS in action during the 1st round of the MONETA Czech Open - ATP CHALLENGER TOUR in Prostejov, Czech Republic, on June 5, 2018. (CTK Photo/Ludek Perina Stock](https://c8.alamy.com/comp/MY12YH/uruguayan-tennis-player-pablo-cuevas-in-action-during-the-1st-round-of-the-moneta-czech-open-atp-challenger-tour-in-prostejov-czech-republic-on-june-5-2018-ctk-photoludek-perina-MY12YH.jpg)