| Date | Time | Meet | Site |
| 9/9/21 | 4:00 PM | HHH @ Hauppauge / Smithtown | Hauppauge |
| 9/9/21 | 4:15 PM | William Floyd @ Ward Melville | Ward Melville |
| 9/10/21 | 4:30 PM | Northport / Commack @ Central Islip | Central Islip |
| 9/10/21 | 4:00 PM | Deer Park / NB @ Brentwood / BS | Brentwood |
| 9/13/21 | 5:15 PM | Harborfields @ Ward Melville | Ward Melville |
| 9/14/21 | 5:15 PM | Harborfields @ William Floyd | Brookhaven |
| 9/14/21 | 5:00 PM | Connetquot/East Islip @ East Hampton | East Hampton |
| 9/14/21 | 4:00 PM | Brentwood/Bay Shore @ Lindenhurst | Lindenhurst |
| 9/14/21 | 5:00 PM | Hauppauge/Smithtown @ Sayville | Sayville MS |
| 9/14/21 | 5:00 PM | Huntington/Walt Whitman @ Sachem East | Sachem East |
| 9/14/21 | 4:30 PM | Northport/Commack @ West Islip | West Islip |
| 9/17/21 | 4:30 PM | Lindenhurst @ Deer Park/NB | Deer Park |
| 9/17/21 | 4:00 PM | Sayville / BPT @ HHH | HHH |
| 9/17/21 | 5:00 PM | East Hampton @ Sachem North | Sachem North |
| | Top Individual Times Top Relay Times | |
| 9/20/21 | 4:00 PM | West Islip @ Central Islip | Central Islip |
| 9/21/21 | 5:00 PM | Northport/Commack @ Huntington/Walt Whitman | Brentwood |
| 9/21/21 | 4:15 PM | Deer Park/NB @ Ward Melville | Ward Melville |
| 9/21/21 | 4:00 PM | Hauppauge/Smithtown @ Connetquot/EI | Connetquot |
| 9/21/21 | 4:00 PM | HHH @ Sachem North | Sachem North |
| 9/21/21 | 4:30 PM | Individual #1 @ Hauppauge | Hauppauge |
| 9/22/21 | 4:30 PM | Individual #2 @ Central Islip | Central Islip |
| 9/22/21 | 5:00 PM | Central Islip @ Sachem East | Sachem East |
| 9/23/21 | 4:00 PM | Stony Brook School @ Hauppauge/Smithtown | Hauppauge |
| 9/23/21 | 4:00 PM | Brentwood/BS @ Wiliam Floyd | Brookhaven |
| 9/23/21 | 5:15 PM | Harborfields @ Lindenhurst | Lindenhurst |
| 9/23/21 | 4:00 PM | Sachem North @ Connetquot / EI | Connetquot |
| 9/23/21 | 4:30 PM | West Islip @ West Babylon | Deer Park |
| 9/24/21 | 5:00 PM | Sayville/BPT @ East Hampton/BH/Pier | East Hampton |
| | Top Individual Times Top Relay Times | |
| 9/26/21 | 10:00 AM | Connetquot 11 Dive Invitational | Connetquot |
| 9/27/21 | 4:00 PM | Huntington/Whitman @ West Babylon | Deer Park |
| 9/28/21 | 4:00 PM | Sachem North @ Central Islip | Central Islip |
| 9/28/21 | 4:15 PM | Ward Melville @ Sachem East | Sachem East |
| 9/28/21 | 4:00 PM | Deer Park / NB @ HHH | HHH |
| 9/28/21 | 4:30 PM | Individual #3 @ Ward Melville | Ward Melville |
| 9/29/21 | 5:15 PM | Harborfields @ West Babylon | Deer Park |
| 9/29/21 | 5:00 PM | East Hampton @ West Islip | West Islip |
| 9/29/21 | 4:00 PM | Lindenhurst @ Sayville/Bayport | Sayville |
| 9/30/21 | 4:00 PM | Brentwood/Bay Shore @ Hauppauge | Hauppauge |
| 9/30/21 | 4:30 PM | Individual #4 @ Brentwood | Brentwood |
| 9/30/21 | 4:15 PM | Huntington / Walt Whitman @ William Floyd | Brookhaven |
| 9/30/21 | 4:30 PM | Stony Brook @ Sachem North | Sachem North |
| 10/5/21 | 4:00 PM | West Babylon @ Sayville/BBP | Sayville MS |
| 10/5/21 | 4:15 PM | Sachem North @ Ward Melville | Ward Melville |
| 10/5/21 | 5:00 PM | Harborfields @ West Islip | West Islip |
| 10/6/21 | 4:00 PM | Huntington/Walt Whitman @ Hauppauge/Smithtown | Hauppauage |
| 10/6/21 | 4:15 PM | Connetquot/EI @ Brentwood/Bay Shore | Brentwood |
| 10/6/21 | 4:30 PM | Individual #5 @ Connetquot | Connetquot |
| 10/6/21 | 5:00 PM | East Hampton/BH/Pier @ Lindenhurst | Lindenhurst |
| | Top Individual Times Top Relay Times | |
| 10/7/21 | 4:00 PM | Sachem East @ Half Hollow Hills | Hills West HS |
| 10/7/21 | 4:00 PM | Sachem North @ Deer Park/North Babylon | Deer Park |
| 10/7/21 | 4:30 PM | Northport/Commack @ William Floyd | Brookhaven AC |
| 10/7/21 | 4:30 PM | Individual #6 @ Sachem North | Sachem North |
| 10/7/21 | 5:00 PM | Central Islip @ Ward Melville | Ward Melville |
| | Top Individual Times Top Relays Times | |
| 10/11/21 | 10:00 AM | Sachem North 11 Dive Invitational Detailed Results | Sachem North |
| 10/12/21 | 4:30 PM | Northport/Commack @ Hauppauge/Smithtown | Hauppauge |
| 10/12/21 | 5:00 PM | Huntington/Whitman @ Brentwood/Bay Shore | Brentwood |
| 10/13/21 | 4:00 PM | Half Hollow Hills @ Central Islip | Central Islip |
| 10/13/21 | 4:00 PM | Deer Park/North Babylon @ Sachem East | Sachem East |
| 10/13/21 | 4:30 PM | Individual #7 @ Half Hollow Hills | Hills West HS |
| 10/14/21 | 4:00 PM | Sayville/BP @ West Islip | West Islip |
| 10/14/21 | 4:15 PM | William Floyd @ Connetquot/EI | Connetquot |
| 10/14/21 | 4:30 PM | Lindenhurst @ West Babylon | Deer Park |
| 10/14/21 | 6:00 PM | Harborfields @ East Hampton | East Hampton |
| 10/14/21 | 4:30 PM | Individual #8 @ Sayville | Sayville MS |
| 10/18/21 | 5:30 PM | Lindy 11 Dive Invitational Detailed Results Final Results | Lindenhurst |
| 10/19/21 | 4:00 PM | Sachem East @ Sachem North | Sachem North |
| 10/19/21 | 4:15 PM | Ward Melville @ Half Hollow Hills | Hills West HS |
| 10/19/21 | 4:30 PM | Northport/Commack @ Connetquot/EI | Connetquot |
| 10/19/21 | 5:00 PM | Central Islip @ Deer Park/North Babylon | Deer Park |
| 10/19/21 | 4:30 PM | Individual #9 @ Sachem East | Sachem East |
| 10/20/21 | 4:00 PM | West Islip @ Lindenhurst | Lindenhurst |
| 10/20/21 | 4:30 PM | Individual #10 @ West Islip | West Islip |
| 10/20/21 | 5:00 PM | Harborfields @ Sayville/BP | Sayville MS |
| 10/20/21 | 5:00 PM | West Babylon @ East Hampton | East Hampton |
| 10/21/21 | 4:00 PM | William Floyd @ Hauppauge/Smithtown | Hauppauge |
| 10/21/21 | 4:30 PM | Northport/Commack @ Brentwood/BS | Brentwood |
| 10/21/21 | 5:15 PM | Huntington/Whitman @ Connetquot/EI | Connetquot |
| 10/27/21 | 3:45 PM | League 1 Swimming Championships | Hauppauge |
| 10/27/21 | 3:45 PM | League 3 Swimming Championships | West Islip |
| 10/28/21 | 3:45 PM | League 2 Swimming Championships | Sachem North |
| | Top 75 Individual Times Top 20 Relays | UPDATED 10/31 2:25PM |
| | NYSPHSAA In-Season Qualifiers | |
| 11/4/21 | 5:30 PM | SECTION XI DIVING CHAMPIONSHIPS
Detailed Results Dive Sheets Final Results | Hauppauge |
| 11/6/21 | 10:00 AM | SECTION XI SWIMMING CHAMPIONSHIPS
Day 1 Results | Stony Brook University |
| 11/7/21 | 10:00 AM | SECTION XI SWIMMING CHAMPIONSHIPS
Final Results | Stony Brook University |
| | Top 75 Individual Times Top 20 Relay Times | |
| 1/20/21 | | NYSPHSAA SWIMMING CHAMPIONSHIPS
NYSPHSAA FEDERATION RESULTS
Ithaca College | |
| | Final Top Individual Times Final Top Relay Times | |
| | Top 20 Individual Times Top 15 Relay Times | |
| | NYSPHSAA Qualifiers | |
