22 teams in the tournament.
3 teams play in each game.
21 games are played by each team.
154 games are played in the whole tournament.
Each team plays every other team twice.

Games R................G...B.........G.B..............R.G.......G..............R..B.........G.................G....G.B........B...R..R....R.....R...B.........B. B..............B.......R............R....B......G..............G.....B.............B.G.....G.....R....G.....R.....G..G.......B..............R..R...B...R.. G.......G...........G..........R.......................R...........G....R.......G...B.......B.B.B....G.............B.B.R.R........R....R.B............G... .R......B.R...G.........................R..........R.B......G.B.....G..B.......G....R..G....................B.........B.............G...R........B.G....R. .B...........B..........G.....G....G.....G....B........G........B.....B....R...R......R......R....G.B..R.......................B.........R..G.......R..... .G....G........G......B.R...G.......B.R.....B.....R.......B......................G..G....R.........G......B...B..B........R..........R................R... ..R.B.....G..R..B...R......B........G..B..G............B..R..R.R.G......................G................B............R.....G................B...........G ..B.....R.................G.....G..........G.R....B..R.......B....G.......R........R.........B.G.B.R...B........B..G.......................G..R........... ..G....B.R....B....R....B....B..R...........G.G....B.....R.......R..........R.........................R.B................G...G.........G........B.G....... ...R.G..........R..G.......R..........G....B.B.B.R....G.....B......R...R....G....B...........................R...........................G.....B....G..B.. ...B........G.......B.R................R...........G..............R..........R..R.G........B..........B....G.....G..B..........G.R.B..........G..R..B..... ...G.......R.G...R....G.......B..R......B..................B...B.......G....................R......B............R..........R.R..G.B...G...........B..G.... ....R..G....B.....B..........R.......G....R....R.B............G...............B....G........G..R....R............R......G.............B.....B.........B.G. ....G.......R..........B.R..B.R.B.G.................G..............B.......G......B....R..R......G...........B.R......G...B.......G.............R......... .....R.........R.............G.........G................G...............B.B......R....B...B.........G......B.......R.......G..R.B.......B.G.....G..R.....R .....B.....G......G.........R......B........R...............R........R...B..............B....G.B.....R......G..G....G..B......B....R.........G....R....... ......R..B.......B...R...B............B..R...G.......G...B......R.............G.B....B..R.G.....R........G.........................G..R.G................. ......B.......R.G.R....G.G.......G.R......B...........R.R.....................................G...R........R..G.G.B..............B..B..B...B.............. .......R...B...............G.........R.....R....B..........G....G...B.....G..G....R....B.G......G.B.......R.......R......B................B..R............ .........G................R....B..R..B..G.....R.....R.B......G.......G..G......B.........B...............R..........R...R..B.....G...B.........G.......... ..........B........B..............B............G....B....G........B.R.G..G....R............R..R........G..G...R......R......B.G.R....................B.... .....................G....B......................G......B..R..R..B....R....B.B.......R...............B..R..............G..G..........G.....R.....G...R.G.B

As you can see, this one is much messier than other grids. I couldn't find a solution using my circular Golomb ruler approach, so I used a brute force approach instead, with GenerateShortRobin.exe from my Zone Grids apps.