| Palermo: Massimo Giunta vs Alejandro Moro Canas | Alejandro Moro Canas | 3,400 | 25¢ | 69.5¢ | $2,363 | +$1,513 | $0 | |
| Villena: Pablo Llamas Ruiz vs Pedro Martinez | Pablo Llamas Ruiz | 5,333 | 9¢ | 0.1¢ | $2.67 | −$477 | $0 | |
| Athens Open, Qualification: Nao Hibino vs Miriana Tona | Miriana Tona | 44.0k | 31.4¢ | 0¢ | $0 | −$13.8k | −$473 | |
| Genoa 2: Giuseppe La Vela vs Giovanni Oradini | Giovanni Oradini | 40.8k | 2.2¢ | 0¢ | $0 | −$890 | −$43 | |
| Winnipeg: Hayato Matsuoka vs Clement Chidekh | Hayato Matsuoka | 35.4k | 5.2¢ | 0¢ | $0 | −$1,830 | −$985 | |
| ITF Luan: Maria Kalyakina vs JiaYi Wang | Maria Kalyakina | 27.6k | 16.3¢ | 0¢ | $0 | −$4,490 | −$188 | |
| Livesport Prague Open, Qualification: Susan Bandecchi vs Xinyu Gao | Susan Bandecchi | 27.4k | 31.7¢ | 0¢ | $0 | −$8,687 | −$295 | |
| Pozoblanco: Dominik Palan vs Izan Almazan Valiente | Dominik Palan | 25.9k | 5.7¢ | 0¢ | $0 | −$1,490 | −$70 | |
| Livesport Prague Open, Qualification: Elena Micic vs Linda Fruhvirtova | Elena Micic | 25.5k | 13.6¢ | 0¢ | $0 | −$3,470 | −$150 | |
| Iasi Open: Oleksandra Oliynykova vs Clara Burel | Clara Burel | 24.8k | 15¢ | 0¢ | $0 | −$3,733 | −$158 | |
| Athens Open: Alina Korneeva vs Ann Li | Ann Li | 24.0k | 8.1¢ | 0¢ | $0 | −$1,940 | −$89 | |
| Swedish Open: Daniel Altmaier vs Hugo Gaston | Hugo Gaston | 23.5k | 3.7¢ | 0¢ | $0 | −$880 | −$42 | |
| Cassis: Lenny Couturier vs Mark Lajal | Lenny Couturier | 23.1k | 3.9¢ | 0¢ | $0 | −$890 | −$43 | |
| ITF Bacau: Radu David Turcanu vs Gheorghe Claudiu Schinteie | Gheorghe Claudiu Schinteie | 22.3k | 17.4¢ | 0¢ | $0 | −$3,880 | −$160 | |
| Swiss Open: Dominic Stephan Stricker vs Jaume Munar | Jaume Munar | 21.6k | 24.6¢ | 0¢ | $0 | −$5,310 | −$196 | |
| Livesport Prague Open, Qualification: Sofia Costoulas vs Nao Hibino | Nao Hibino | 21.3k | 6.1¢ | 0¢ | $0 | −$1,310 | −$61 | |
| Swedish Open: Nuno Borges vs Moise Kouame | Moise Kouame | 21.3k | 4.6¢ | 0¢ | $0 | −$980 | −$47 | |
| Croatia Open: Marko Topo vs Camilo Ugo Carabelli | Marko Topo | 20.2k | 5.3¢ | 0¢ | $0 | −$1,080 | −$51 | |
| Newport: Alexis Galarneau vs Jacob Fearnley | Alexis Galarneau | 20.1k | 49.7¢ | 0¢ | $0 | −$10,000 | −$252 | |
| Swedish Open: Jesper de Jong vs Vilius Gaubas | Vilius Gaubas | 19.1k | 25.3¢ | 0¢ | $0 | −$4,830 | −$175 | |
| Raptors vs. Cavaliers | Raptors | 18.7k | 0.5¢ | 0¢ | $0 | −$100 | −$2.98 | |
| Cordenons: Maxim Mrva vs Franco Roncadelli | Maxim Mrva | 18.7k | 14.4¢ | 0¢ | $0 | −$2,687 | −$113 | |
| Cavaliers vs. Raptors | Cavaliers | 18.7k | 24.6¢ | 0¢ | $0 | −$4,590 | −$104 | |
| Istanbul 2: Kristina Penickova vs Karman Thandi | Karman Thandi | 18.6k | 36.4¢ | 0¢ | $0 | −$6,790 | −$212 | |
| Winnipeg: James McCabe vs Duncan Chan | James McCabe | 18.5k | 48.7¢ | 0¢ | $0 | −$9,000 | −$231 | |
| St. Tropez: Hugo Grenier vs Thomas Faurel | Hugo Grenier | 18.3k | 7.2¢ | 0¢ | $0 | −$1,310 | −$61 | |
| Hamburg European Open: Sara Sorribes Tormo vs Alina Charaeva | Sara Sorribes Tormo | 18.2k | 9.3¢ | 0¢ | $0 | −$1,700 | −$77 | |
| Wimbledon, Qualification WTA: Xiaodi You vs Leolia Jeanjean | Xiaodi You | 18.2k | 33¢ | 0¢ | $0 | −$6,000 | −$121 | |
| US Open ATP: Jiri Lehecka vs Stefanos Tsitsipas | Jiri Lehecka | 18.1k | 27.6¢ | 0¢ | $0 | −$5,000 | −$181 | |
| Croatia Open: Federico Agustin Gomez vs Matteo Arnaldi | Federico Agustin Gomez | 17.9k | 7.7¢ | 0¢ | $0 | −$1,380 | −$64 | |
| Bunschoten: Tom Gentzsch vs Pieter De Lange | Pieter De Lange | 17.8k | 11.5¢ | 0¢ | $0 | −$2,039 | −$90 | |
| Cordenons: Andrej Nedic vs Enrico Dalla Valle | Andrej Nedic | 17.8k | 21.7¢ | 0¢ | $0 | −$3,860 | −$151 | |
| Hagen: Dominik Recek vs Diego Dedura-Palomero | Dominik Recek | 17.8k | 6.9¢ | 0¢ | $0 | −$1,220 | −$57 | |
| Bloomfield Hills: Dhakshineswar Suresh vs Billy Harris | Billy Harris | 17.6k | 31.7¢ | 0¢ | $0 | −$5,590 | −$191 | |
| Liege: Kimmer Coppejans vs Guy Den Ouden | Guy Den Ouden | 17.5k | 15.3¢ | 0¢ | $0 | −$2,682 | −$113 | |
| US Open ATP: Alex Michelsen vs Daniel Merida Aguilar | Daniel Merida Aguilar | 17.5k | 12.6¢ | 0¢ | $0 | −$2,200 | −$88 | |
| Bunschoten: Tom Gentzsch vs Max Houkes | Max Houkes | 17.4k | 16¢ | 0¢ | $0 | −$2,790 | −$117 | |
| Cordenons: Sumit Nagal vs Federico Bondioli | Sumit Nagal | 17.3k | 31.8¢ | 0¢ | $0 | −$5,510 | −$180 | |
| Wimbledon ATP: Arthur Fery vs Alexander Zverev | Arthur Fery | 17.2k | 0.6¢ | 0¢ | $0 | −$100 | −$4.97 | |
| Internazionali BNL d'Italia, Qualification: Patrick Kypson vs Jack Pinnington Jones | Jack Pinnington Jones | 17.1k | 5.1¢ | 0¢ | $0 | −$870 | −$25 | |
| Cordenons: Max Hans Rehberg vs Guido Justo | Max Hans Rehberg | 16.9k | 28.8¢ | 0¢ | $0 | −$4,860 | −$173 | |
| Athens Open: Sapfo Sakellaridi vs Miriana Tona | Sapfo Sakellaridi | 16.6k | 17¢ | 0¢ | $0 | −$2,820 | +$729 | |
| Swiss Open: Arthur Rinderknech vs Stefanos Tsitsipas | Arthur Rinderknech | 16.5k | 47¢ | 0¢ | $0 | −$7,740 | −$205 | |
| Generali Open: Yannick Hanfmann vs Quentin Halys | Yannick Hanfmann | 16.3k | 11.9¢ | 0¢ | $0 | −$1,950 | −$80 | |
| Estoril Open, Qualification: Orlando Luz vs Clement Tabur | Clement Tabur | 16.1k | 18.2¢ | 0¢ | $0 | −$2,930 | −$120 | |
| Generali Open: Daniel Altmaier vs Raphael Collignon | Raphael Collignon | 16.0k | 47.8¢ | 0¢ | $0 | −$7,670 | −$199 | |
| Bitcoin Up or Down - May 21, 2:20AM-2:25AM ET | Down | 16.0k | 1.7¢ | 0¢ | $0 | −$268 | −$18 | |
| US Open, Qualification ATP: Jacob Fearnley vs Jurij Rodionov | Jacob Fearnley | 15.9k | 1¢ | 0¢ | $0 | −$159 | −$7.87 | |
| Estoril Open: Tiago Torres vs Nikoloz Basilashvili | Nikoloz Basilashvili | 15.8k | 37.2¢ | 0¢ | $0 | −$5,900 | −$185 | |
| Chengdu Open: Vit Kopriva vs Jia Hu | Jia Hu | 15.8k | 3.6¢ | 0¢ | $0 | −$570 | −$27 | |
| Wimbledon ATP: Jannik Sinner vs Alexander Zverev | Alexander Zverev | 15.5k | 24.4¢ | 0¢ | $0 | −$3,790 | −$143 | |
| Winnipeg: August Holmgren vs Garrett Johns | Garrett Johns | 15.4k | 14.3¢ | 0¢ | $0 | −$2,200 | −$94 | |
| Estoril Open: Vilius Gaubas vs Pablo Carreno Busta | Vilius Gaubas | 15.3k | 12¢ | 0¢ | $0 | −$1,840 | −$81 | |
| Swiss Open: Juan Manuel Cerundolo vs Casper Ruud | Casper Ruud | 15.3k | 20.6¢ | 0¢ | $0 | −$3,150 | −$124 | |
| US Open ATP: Alexander Zverev vs Alejandro Tabilo | Alejandro Tabilo | 15.3k | 6¢ | 0¢ | $0 | −$915 | −$43 | |
| Livesport Prague Open: Nikola Bartunkova vs Yue Yuan | Yue Yuan | 15.2k | 26¢ | 0¢ | $0 | −$3,940 | −$146 | |
| Lincoln: J.J. Wolf vs Spencer Johnson | J.J. Wolf | 15.1k | 38¢ | 0¢ | $0 | −$5,750 | −$173 | |
| Iasi Open: Elina Avanesyan vs Petra Marcinko | Elina Avanesyan | 14.9k | 10¢ | 0¢ | $0 | −$1,490 | −$67 | |
| Segovia: Yi Zhou vs Luka Pavlovic | Yi Zhou | 14.8k | 39.1¢ | 0¢ | $0 | −$5,802 | −$176 | |
| Swedish Open: Nicolai Budkov Kjaer vs Andrea Pellegrino | Nicolai Budkov Kjaer | 14.8k | 6.7¢ | 0¢ | $0 | −$985 | −$46 | |
| ITF Bali: Taisei Ichikawa vs Mukund Sasikumar | Mukund Sasikumar | 14.6k | 15.7¢ | 0¢ | $0 | −$2,300 | −$97 | |
| Swedish Open, Qualification: Thomas Faurel vs Miguel Damas | Thomas Faurel | 14.5k | 9¢ | 0¢ | $0 | −$1,300 | −$59 | |
| Istanbul 3: Christian Langmo vs Maks Kasnikowski | Christian Langmo | 14.4k | 20¢ | 0¢ | $0 | −$2,880 | −$114 | |
| Croatia Open: Pablo Carreno Busta vs Camilo Ugo Carabelli | Pablo Carreno Busta | 14.4k | 69.6¢ | 0¢ | $0 | −$10,000 | −$152 | |
| Swiss Open: Jaime Faria vs Casper Ruud | Jaime Faria | 14.2k | 9¢ | 0¢ | $0 | −$1,277 | −$58 | |
| Generali Open: Adolfo Vallejo vs Kilian Feldbausch | Adolfo Vallejo | 14.1k | 2.8¢ | 0¢ | $0 | −$400 | −$19 | |
| Trieste: Nikolas Sanchez Izquierdo vs Hugo Dellien | Nikolas Sanchez Izquierdo | 14.0k | 4.9¢ | 0¢ | $0 | −$690 | −$33 | |
| Golden State Valkyries vs. Connecticut Sun | Connecticut Sun | 14.0k | 46.9¢ | 0¢ | $0 | −$6,580 | −$175 | |
| US Open WTA: Marta Kostyuk vs Ekaterina Alexandrova | Ekaterina Alexandrova | 13.8k | 15.2¢ | 0¢ | $0 | −$2,100 | −$88 | |
| Generali Open: Quentin Halys vs Valentin Vacherot | Valentin Vacherot | 13.7k | 35.4¢ | 0¢ | $0 | −$4,850 | −$157 | |
| Swiss Open: Jerome Kym vs Stefanos Tsitsipas | Jerome Kym | 13.7k | 42.8¢ | 0¢ | $0 | −$5,860 | −$168 | |
| Istanbul 2: Hanne Vandewinkel vs Lanlana Tararudee | Hanne Vandewinkel | 13.7k | 17¢ | 0¢ | $0 | −$2,330 | +$3,611 | |
| Generali Open: Sebastian Baez vs Arthur Rinderknech | Arthur Rinderknech | 13.6k | 28.4¢ | 0¢ | $0 | −$3,850 | −$137 | |
| Lincoln: Coleman Wong vs Spencer Johnson | Coleman Wong | 13.5k | 50.9¢ | 0¢ | $0 | −$6,874 | −$169 | |
| ITF Hillcrest: Andreas Timini vs Giulio Perego | Andreas Timini | 13.5k | 21.1¢ | 0¢ | $0 | −$2,840 | −$112 | |
| China Open, Qualification: Alexandra Panova vs Mai Hontama | Alexandra Panova | 13.4k | 9.4¢ | 0¢ | $0 | −$1,258 | −$57 | |
| Istanbul 2: Linda Fruhvirtova vs Xinyu Gao | Linda Fruhvirtova | 13.2k | 22¢ | 0¢ | $0 | −$2,910 | −$114 | |
| Estoril Open, Qualification: Pedro Martinez vs Timofey Skatov | Timofey Skatov | 13.1k | 21.9¢ | 0¢ | $0 | −$2,880 | −$112 | |
| Pozoblanco: Chris Rodesch vs Ilya Ivashka | Ilya Ivashka | 13.1k | 39¢ | 0¢ | $0 | −$5,103 | −$154 | |
| Wuxi: Yasutaka Uchiyama vs Alastair Gray | Yasutaka Uchiyama | 13.1k | 38.3¢ | 0¢ | $0 | −$5,000 | −$93 | |
| Cordenons: Federico Bondioli vs Guido Justo | Guido Justo | 13.1k | 28.1¢ | 0¢ | $0 | −$3,670 | −$132 | |
| ITF W15 Logrono Women: Victoria Gomez O'Hayon vs Min Liu | Min Liu | 13.0k | 25.2¢ | 0¢ | $0 | −$3,288 | −$123 | |
| Madrid Open: Mirra Andreeva vs Marta Kostyuk | Mirra Andreeva | 12.9k | 29.4¢ | 0¢ | $0 | −$3,800 | −$80 | |
| Huzhou: Veronika Erjavec vs Katarzyna Kawa | Veronika Erjavec | 12.8k | 31.2¢ | 0¢ | $0 | −$4,000 | −$83 | |
| Swiss Open: Raphael Collignon vs Valentin Vacherot | Valentin Vacherot | 12.7k | 43¢ | 0¢ | $0 | −$5,470 | −$156 | |
| China Open: Sara Bejlek vs Naomi Osaka | Sara Bejlek | 12.7k | 3¢ | 0¢ | $0 | −$380 | −$18 | |
| Cincinnati Open, Qualification: Alexander Shevchenko vs Christopher O'Connell | Alexander Shevchenko | 12.7k | 11.9¢ | 0¢ | $0 | −$1,500 | −$66 | |
| Canadian Open: Marton Fucsovics vs Corentin Moutet | Marton Fucsovics | 12.6k | 7.5¢ | 0¢ | $0 | −$940 | −$43 | |
| Pozoblanco: Yi Zhou vs Tiago Pereira | Yi Zhou | 12.6k | 14.5¢ | 0¢ | $0 | −$1,830 | −$78 | |
| Prague 2: Jan Kumstat vs Filip Jianu | Filip Jianu | 12.6k | 3.8¢ | 0¢ | $0 | −$480 | −$23 | |
| Cordenons: Federico Bondioli vs Max Alcala Gurri | Federico Bondioli | 12.4k | 38¢ | 0¢ | $0 | −$4,720 | −$146 | |
| Wimbledon ATP: Nicolas Mejia vs Michael Zheng | Nicolas Mejia | 12.1k | 8¢ | 0¢ | $0 | −$968 | −$27 | |
| Bunschoten: Ryan Nijboer vs Guy Den Ouden | Ryan Nijboer | 12.0k | 7¢ | 0¢ | $0 | −$840 | −$39 | |
| US Open ATP: Frances Tiafoe vs Ben Shelton | Frances Tiafoe | 12.0k | 13.5¢ | 0¢ | $0 | −$1,620 | −$592 | |
| Estoril Open: Hugo Gaston vs Titouan Droguet | Titouan Droguet | 11.9k | 23¢ | 0¢ | $0 | −$2,750 | −$106 | |
| Targu Mures: Caijsa Hennemann vs Mia Pohankova | Mia Pohankova | 11.8k | 15¢ | 0¢ | $0 | −$1,770 | +$3,759 | |
| Swedish Open: Max Dahlin vs Sebastian Baez | Max Dahlin | 11.7k | 12.9¢ | 0¢ | $0 | −$1,510 | −$66 | |
| ITF Luan: Alina Tikhonova vs Naho Sato | Naho Sato | 11.7k | 19.6¢ | 0¢ | $0 | −$2,290 | −$92 | |
| Targu Mures: Kaitlin Quevedo vs Irina Fetecau | Irina Fetecau | 11.6k | 7¢ | 0¢ | $0 | −$810 | −$38 | |
| Bunschoten: Thijs Boogaard vs Gauthier Onclin | Gauthier Onclin | 11.6k | 41.6¢ | 0¢ | $0 | −$4,820 | −$141 | |