Calendar
| Sun | Mon | Tue | Wed | Thu | Fri | Sat |
| 27 | 28 | 29 | 30 | 1 | 2 | 3 |
| 9:45am: CANCELLED: April Scholastics | 7:15pm: April Tuesday Night Swiss (OTB) 6:30pm: Early Spring Six-Week Swiss Online |
7:15pm: Thursday Club Night 5/1 | 7:45pm: Big Money Blitz | 10am: May Quads | ||
| 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| 7:15pm: May Tuesday Night Swiss 6:30pm: Early Spring Six-Week Swiss Online |
7:15pm: Thursday Club Night 5/8 | 7:45pm: Unrated Friday Night Blitz | 9:30am: $15 Open | |||
| 11 | 12 | 13 | 14 | 15 | 16 | 17 |
| 6:30pm: Late Spring Six-Week Swiss Online 7:15pm: May Tuesday Night Swiss |
7:15pm: Thursday Club Night 5/15 | 7:45pm: Fischer Random Blitz | MACA Spiegel Cup Finals | |||
| 18 | 19 | 20 | 21 | 22 | 23 | 24 |
| MACA Spiegel Cup Finals | 7:15pm: May Tuesday Night Swiss 6:30pm: Late Spring Six-Week Swiss Online |
7:15pm: Thursday Club Night 5/22 | ||||
| 25 | 26 | 27 | 28 | 29 | 30 | 31 |
| 6:30pm: Late Spring Six-Week Swiss Online 7:15pm: May Tuesday Night Swiss |
7:15pm: Thursday Club Night 5/29 | 7:45pm: Big Money Blitz | 9:45am: May Scholastics 6pm: Massachusetts High School Chess League |