Division 3
| Division 3 | |
| Billingham B. C. 'B' | J. W. P. |
| Eldon Grove 'B' | Eldon Grove |
| Expansion | Brinkburn 'B' |
| Grays | Binkburn 'A' |
| Guild 'B' | Burn Valley |
| Hartlepool | Friar Terrace |
| Utd. Services | Friar Terrace |
| Midweek Division 3 | ||||||
| Week 1 | w/c 17 May 2021 | |||||
| Utd. Services | v | Bye | ||||
| Eldon Grove 'B' | 3 | v | 3 | Grays | Eldon Grove | T |
| Guild 'B' | 1 | v | 5 | Hartlepool | Burn Valley | T |
| Expansion | v | Billingham B. C. 'B' | Brinkburn 'B' | T | ||
| Week 2 | w/c 24 May 2021 | |||||
| Utd. Services | 2 | v | 4 | Expansion | Friar Tce. | T |
| Eldon Grove 'B' | 2 | v | 4 | Guild 'B' | Eldon Grove | T |
| Bye | v | Grays | ||||
| Billingham B. C. 'B' | 5 | v | 1 | Hartlepool | J. W. P. | T |
| Week 3 | w/c 31 May 2021 | |||||
| Grays | 1 | v | 5 | Expansion | ||
| Hartlepool | 1.5 | v | 4.5 | Utd. Services | Friar Tce. | W |
| Eldon Grove 'B' | 5.5 | v | 0.5 | Billingham B. C. 'B' | Eldon Grove | T |
| Guild 'B' | v | Bye | ||||
| Week 4 | w/c 7 June 2021 | |||||
| Bye | v | Eldon Grove 'B' | ||||
| Grays | 5 | v | 1 | Guild 'B' | Brinkburn 'A' | T |
| Expansion | 2 | v | 4 | Hartlepool | Brinkburn 'B' | T |
| Utd. Services | 5 | v | 1 | Billingham B. C. 'B' | Friar Tce. | T |
| Week 5 | w/c 14 June 2021 | |||||
| Eldon Grove 'B' | v | Expansion | Eldon Grove | T | ||
| Guild 'B' | 1 | v | 5 | Utd. Services | Burn Valley | T |
| Hartlepool | v | Bye | ||||
| Billingham B. C. 'B' | 5 | v | 1 | Grays | J. W. P. | T |
| Week 6 | w/c 21 June 2021 | |||||
| Utd. Services | 5 | v | 1 | Eldon Grove 'B' | Friar Tce. | T |
| Expansion | 4 | v | 2 | Guild 'B' | Brinkburn 'B' | T |
| Grays | 1 | v | 5 | Hartlepool | Brinkburn 'A' | T |
| Bye | v | Billingham B.C. 'B' | ||||
| Week 7 | w/c 28 June 2021 | |||||
| Expansion | v | Bye | ||||
| Utd. Services | 5 | v | 1 | Grays | Friar Tce. | T |
| Eldon Grove 'B' | 2.5 | v | 3.5 | Hartlepool | Eldon Grove | T |
| Guild 'B' | v | Billingham B. C. 'B' | Burn Valley | T | ||
| Week 8 | w/c 5 July 2021 | |||||
| Bye | v | Utd. Services | ||||
| Grays | v | Eldon Grove 'B' | Brinkburn 'A' | T | ||
| Hartlepool | 6 | v | 0 | Guild 'B' | Friar Tce. | T |
| Billingham B. C. 'B' | v | Expansion | J. W. P. | T | ||
| Week 9 | w/c 12 July 2021 | |||||
| Expansion | 5 | v | 1 | Grays | Brinkburn 'B' | T |
| Utd. Services | 2.5 | v | 3.5 | Hartlepool | Friar Tce. | T |
| Billingham B. C. 'B' | 6 | v | 0 | Eldon Grove 'B' | J. W. P. | T |
| Guild 'B' | v | Bye | ||||
| Week 10 | w/c 19 July 2021 | |||||
| Expansion | 2 | v | 4 | Utd. Services | Brinkburn 'B' | T |
| Guild 'B' | 5 | v | 1 | Eldon Grove 'B' | Burn Valley | T |
| Grays | v | Bye | ||||
| Hartlepool | 6 | v | 0 | Billingham B. C. 'B' | Friar Tce. | T |
| Week 11 | w/c 26 July 2021 | |||||
| Eldon Grove 'B' | v | Bye | ||||
| Guild 'B' | 5 | v | 1 | Grays | Burn Valley | T |
| Hartlepool | 5 | v | 1 | Expansion | Friar Tce. | T |
| Billingham B. C. 'B' | v | Utd. Services | J. W. P. | T | ||
| Week 12 | w/c 2 Aug. 2021 | |||||
| Expansion | v | Eldon Grove 'B' | Brinkburn 'B' | T | ||
| Utd. Services | v | Guild 'B' | Friar Tce. | T | ||
| Bye | v | Hartlepool | ||||
| Grays | v | Billingham B. C. 'B' | Brinkburn 'A' | T | ||
| Week 13 | w/c 9 Aug. 2021 | |||||
| Eldon Grove 'B' | v | Utd. Services | Eldon Grove | T | ||
| Guild 'B' | v | Expansion | Burn Valley | T | ||
| Hartlepool | v | Grays | Friar Tce. | T | ||
| Billingham B. C. 'B' | v | Bye | ||||
| Week 14 | w/c 16 Aug. 2021 | |||||
| Bye | v | Expansion | ||||
| Grays | v | Utd. Services | Brinkburn 'A' | T | ||
| Hartlepool | v | Eldon Grove 'B' | Friar Tce. | T | ||
| Billingham B. C. 'B' | v | Guild 'B' | J. W. P. | T | ||
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