| — | Challenger Cup S2 - Esga Americas - 2018-04-04 to 2018-05-15 CompletedESGA|organizer-link=https://www.esga.gg/ Series: HCT Challengers - Americas, Seasons 1–2 | C-Tier | Core EventStage / monthly / weekly | — | — | — | Catalog |
| — | Challenger Cup S2 - Black Claws Europe - 2018-06-21 to 2018-06-30 CompletedBlack Claws|organizer-link=https://www.battlefy.com/black-claws/ Series: HCT Challengers - Europe, Seasons 1–2 | C-Tier | Core EventStage / monthly / weekly | — | — | — | Catalog |
| — | Challenger Cup S2 - Black Claws Europe - 2018-06-08 to 2018-06-17 CompletedBlack Claws|organizer-link=https://www.battlefy.com/black-claws/ Series: HCT Challengers - Europe, Seasons 1–2 | C-Tier | Core EventStage / monthly / weekly | — | — | — | Catalog |
| — | Challenger Cup S2 - Black Claws Europe - 2018-05-25 to 2018-06-07 CompletedBlack Claws|organizer-link=https://www.battlefy.com/black-claws/ Series: HCT Challengers - Europe, Seasons 1–2 | C-Tier | Core EventStage / monthly / weekly | — | — | — | Catalog |
| — | Challenger Cup S2 - Black Claws Europe - 2018-05-11 to 2018-05-24 CompletedBlack Claws|organizer-link=https://www.battlefy.com/black-claws/ Series: HCT Challengers - Europe, Seasons 1–2 | C-Tier | Core EventStage / monthly / weekly | — | — | — | Catalog |
| — | Challenger Cup S2 - Black Claws Europe - 2018-04-27 to 2018-05-10 CompletedBlack Claws|organizer-link=https://www.battlefy.com/black-claws/ Series: HCT Challengers - Europe, Seasons 1–2 | C-Tier | Core EventStage / monthly / weekly | — | — | — | Catalog |
| — | Challenger Cup S2 - Black Claws Europe - 2018-04-14 to 2018-04-26 CompletedBlack Claws|organizer-link=http://www.blackclaws.com/ Series: HCT Challengers - Europe, Seasons 1–2 | C-Tier | Core EventStage / monthly / weekly | — | — | — | Catalog |
| — | Challenger Cup S2 - Black Claws Europe - 2018-04-01 to 2018-04-13 CompletedBlack Claws|organizer-link=http://www.blackclaws.com/ Series: HCT Challengers - Europe, Seasons 1–2 | C-Tier | Core EventStage / monthly / weekly | — | — | — | Catalog |
| — | Challenger Cup S2 - Black Claws Americas - 2018-06-22 to 2018-06-30 CompletedBlack Claws|organizer-link=https://www.battlefy.com/black-claws/ Series: HCT Challengers - Americas, Seasons 1–2 | C-Tier | Core EventStage / monthly / weekly | — | — | — | Catalog |
| — | Challenger Cup S2 - Black Claws Americas - 2018-06-09 to 2018-06-17 CompletedBlack Claws|organizer-link=https://www.battlefy.com/black-claws/ Series: HCT Challengers - Americas, Seasons 1–2 | C-Tier | Core EventStage / monthly / weekly | — | — | — | Catalog |
| — | Challenger Cup S2 - Black Claws Americas - 2018-05-26 to 2018-06-08 CompletedBlack Claws|organizer-link=https://www.battlefy.com/black-claws/ Series: HCT Challengers - Americas, Seasons 1–2 | C-Tier | Core EventStage / monthly / weekly | — | — | — | Catalog |
| — | Challenger Cup S2 - Black Claws Americas - 2018-05-12 to 2018-05-26 CompletedBlack Claws|organizer-link=https://www.battlefy.com/black-claws/ Series: HCT Challengers - Americas, Seasons 1–2 | C-Tier | Core EventStage / monthly / weekly | — | — | — | Catalog |
| — | Challenger Cup S2 - Black Claws Americas - 2018-04-28 to 2018-05-12 CompletedBlack Claws|organizer-link=https://www.battlefy.com/black-claws/ Series: HCT Challengers - Americas, Seasons 1–2 | C-Tier | Core EventStage / monthly / weekly | — | — | — | Catalog |
| — | Challenger Cup S2 - Black Claws Americas - 2018-04-14 to 2018-04-28 CompletedBlack Claws|organizer-link=http://www.blackclaws.com/ Series: HCT Challengers - Americas, Seasons 1–2 | C-Tier | Core EventStage / monthly / weekly | — | — | — | Catalog |
| — | Challenger Cup S2 - Black Claws Americas - 2018-04-01 to 2018-04-14 CompletedBlack Claws|organizer-link=http://www.blackclaws.com/ Series: HCT Challengers - Americas, Seasons 1–2 | C-Tier | Core EventStage / monthly / weekly | — | — | — | Catalog |
| — | Challenger Cup S2 - 1Vs1 Europe - 2018-05-15 to 2018-05-28 Completed1vs1|organizer-link=https://www.1vs1.gg/ Series: HCT Challengers - Europe, Seasons 1–2 | C-Tier | Core EventStage / monthly / weekly | — | — | — | Catalog |
| — | Challenger Cup S2 - 1Vs1 Europe - 2018-05-07 to 2018-05-14 Completed1vs1|organizer-link=https://www.1vs1.gg/ Series: HCT Challengers - Europe, Seasons 1–2 | C-Tier | Core EventStage / monthly / weekly | — | — | — | Catalog |
| — | Challenger Cup S1 - Strivewire Europe - 2018-01-26 to 2018-01-29 CompletedStriveWire|organizer-link=https://strivewire.com Series: HCT Challengers - Europe, Seasons 1–2 | C-Tier | Core EventStage / monthly / weekly | — | — | — | Catalog |
| — | Challenger Cup S1 - Strivewire Europe - 2018-01-22 to 2018-01-25 CompletedStriveWire|organizer-link=https://strivewire.com Series: HCT Challengers - Europe, Seasons 1–2 | C-Tier | Core EventStage / monthly / weekly | — | — | — | Catalog |
| — | Challenger Cup S1 - Strivewire Europe - 2018-01-18 to 2018-01-21 CompletedStriveWire|organizer-link=https://strivewire.com Series: HCT Challengers - Europe, Seasons 1–2 | C-Tier | Core EventStage / monthly / weekly | — | — | — | Catalog |
| — | Challenger Cup S1 - Strivewire Europe - 2018-02-07 to 2018-02-10 CompletedStriveWire|organizer-link=https://strivewire.com Series: HCT Challengers - Europe, Seasons 1–2 | C-Tier | Core EventStage / monthly / weekly | — | — | — | Catalog |
| — | Challenger Cup S1 - Strivewire Europe - 2018-02-10 to 2018-02-16 CompletedStriveWire|organizer-link=https://strivewire.com Series: HCT Challengers - Europe, Seasons 1–2 | C-Tier | Core EventStage / monthly / weekly | — | — | — | Catalog |
| — | Challenger Cup S1 - Esga Europe - 2018-01-11 to 2018-01-17 CompletedESGA|organizer-link=https://esga.gg Series: HCT Challengers - Europe, Seasons 1–2 | C-Tier | Core EventStage / monthly / weekly | — | — | — | Catalog |
| — | Challenger Cup S1 - Strivewire Europe - 2018-02-03 to 2018-02-06 CompletedStriveWire|organizer-link=https://strivewire.com Series: HCT Challengers - Europe, Seasons 1–2 | C-Tier | Core EventStage / monthly / weekly | — | — | — | Catalog |
| — | Challenger Cup S1 - Strivewire Europe - 2018-01-30 to 2018-02-02 CompletedStriveWire|organizer-link=https://strivewire.com Series: HCT Challengers - Europe, Seasons 1–2 | C-Tier | Core EventStage / monthly / weekly | — | — | — | Catalog |
| — | Challenger Cup S1 - Strivewire Americas - 2018-01-21 to 2018-01-25 CompletedStriveWire|organizer-link=https://strivewire.com Series: HCT Challengers - Americas, Seasons 1–2 | C-Tier | Core EventStage / monthly / weekly | — | — | — | Catalog |
| — | Challenger Cup S1 - Strivewire Americas - 2018-01-17 to 2018-01-20 CompletedStriveWire|organizer-link=https://strivewire.com Series: HCT Challengers - Americas, Seasons 1–2 | C-Tier | Core EventStage / monthly / weekly | — | — | — | Catalog |
| — | Challenger Cup S1 - Esga Asia-Pacific - 2018-01-11 to 2018-01-16 CompletedESGA|organizer-link=https://esga.gg Series: HCT Challengers - Asia-Pacific | C-Tier | Core EventStage / monthly / weekly | — | — | — | Catalog |
| — | Challenger Cup S1 - Esga Europe - 2018-01-04 to 2018-01-10 CompletedESGA|organizer-link=https://esga.gg Series: HCT Challengers - Europe, Seasons 1–2 | C-Tier | Core EventStage / monthly / weekly | — | — | — | Catalog |
| — | Challenger Cup S1 - Europe partner cups CompletedBlack Claws|organizer-link=http://www.blackclaws.com/ Series: HCT Challengers - Europe, Seasons 1–2 | C-Tier | Core EventStage / monthly / weekly | — | — | — | Catalog |