Random triples
| Subject | Object |
|---|---|
| gptkb:WTA_500 | 28 to 56 players |
| gptkb:2020_French_Open | 32 (mixed doubles) |
| gptkb:WTA_1000_event | varies by tournament |
| gptkb:ATP_Tour_250_series | 28 to 32 players |
| gptkb:WTA_250_series | 24 qualifying |
| gptkb:WTA_500_tournaments | 28–56 players |
| gptkb:Benson_&_Hedges_Masters | 16 (varied over years) |
| gptkb:2020_French_Open | 64 (doubles) |
| gptkb:2020_French_Open | 128 (singles) |
| gptkb:Tennis_Grand_Slams | 128 singles players |
| gptkb:German_Masters | 32 |
| gptkb:ATP_Challenger_Tour | 32 or 48 players |
| gptkb:WTA_250_series | 32 singles |
| gptkb:WTA_250_series | 16 doubles |