Division 1A leaders Clontarf travel to Ollie Campbell Park for a top of the table Dublin derby against second placed Old Belvedere. Tarf arrive following an emphatic 61-15 victory over UCD, while Belvo seek a response after defeat to Lansdowne. Clontarf won both meetings last season, including a 34-12 victory at this venue.
Another fierce capital rivalry unfolds at Templeville Road, where fifth placed St Mary's College welcome Terenure College in the D6W derby. Mary’s narrowly lost to Cork Constitution last time out, while Terenure overcame Old Wesley. Mary’s won both home meetings last season, with Terenure seeking their first AIL victory at Templeville Road since 2017.
Fourth placed UCD host eighth placed Cork Constitution, with just four points separating them. UCD aim to bounce back from defeat to Clontarf, although Con arrive following their first victory of the campaign. The Cork side have gone eight visits unbeaten at the UCD Bowl.
Old Wesley and Young Munster renew acquaintances at Energia Park for the first time since the 1996/97 season, when the Cookies' victory relegated Wesley from the top flight. Young Munster are chasing a third consecutive win, while Wesley seek a response to defeat against Terenure.
Bottom placed Ballynahinch welcome Lansdowne to Ballymacarn Park in a fixture streamed live on IrishRugby+. Hinch are chasing their first victory, while Lansdowne look to build on their win over Belvedere.
Division 1B leaders Naas travel to Shaw's Bridge to face eighth placed Instonians, seeking a first ever AIL victory at the venue. Naas impressed in their 54-14 win over Blackrock, while Instonians edged Nenagh Ormond 23-21.
Second placed Highfield visit MU Barnhall at Parsonstown, with both sides carrying winning momentum. Barnhall secured their second victory against Garryowen, while Highfield impressed in a 57-29 win over Dublin University.
Trinity welcome third placed Nenagh Ormond to College Park, with both sides looking to respond to their first defeats. Their last meeting saw Trinity win 20-7 in April 2025 to preserve their Division 1B status.
Blackrock College host City of Armagh at Stradbrook, with score difference separating the fourth and fifth placed sides. Rock won both meetings last season, while Armagh arrive following victory over UCC.
UCC and Garryowen complete the programme with a Munster derby at the Mardyke. The students chase their first win, having completed a league double over Garryowen last season.
Division 2A leaders Cashel travel to Merrion Road to face fifth placed Wanderers, who won both meetings last season, including a narrow 25-24 home success. Cashel are chasing a fourth consecutive victory, while Wanderers look to build on their opening win against Shannon.
Second placed Ballymena visit bottom placed Galwegians seeking a fourth straight victory. Their last two meetings in 2016 and 2017 were both decided by a single point in Ballymena's favour.
Third placed Dungannon defend their unbeaten record when Shannon visit Stevenson Park. Shannon defeated Dungannon in last season's promotion playoff semi final, adding extra intrigue.
Galway Corinthians travel to UL Bohemian aiming to bounce back from defeat to Dungannon, while Bohs seek consecutive victories following their first win. Corinthians won 35-21 on their last visit to Annacotty in April 2024.
Queen's University host Greystones at The Dub, with both clubs eager to end disappointing recent runs. Greystones won both meetings when the sides last faced each other in December 2017.
Division 2B North leaders Ballyclare welcome winless Navan to The Cloughan for a first ever AIL meeting, with the hosts targeting four consecutive victories.
Unbeaten newcomers Enniskillen travel to Rifle Park for their first AIL Ulster derby against Banbridge, who remain without a win. Malone also chase a fourth straight bonus point success when they visit Rainey at Hatrick Park, although Rainey won both meetings last season.
Clogher Valley defend their perfect start away to Skerries, having won on their last two visits to Holmpatrick. Sligo complete the programme with a trip to Malahide, hoping to build on their opening victory, while the hosts continue their search for a first win.
Division 2B South leaders Clonmel welcome Thomond to Ard Gaoithe seeking a fourth consecutive maximum points haul. The hosts won both meetings last season, including a narrow 24-22 success in November.
Second placed Old Crescent host bottom placed Enniscorthy in a first ever AIL meeting, with Crescent also chasing a fourth consecutive bonus point victory.
Bective Rangers travel to Buccaneers seeking a third successive victory, with the sides meeting for the first time since December 2007.
Midleton welcome Monkstown to Towns Park, with the visitors having won their last three encounters, including a 19-15 victory at this venue last December.
Bruff and Dolphin complete the programme in a Munster derby at Kilballyowen Park. Both sides are looking to end losing runs, with Bruff hoping to repeat their 21-15 home victory from last November.
FIXTURES:
ALL GAMES KICK-OFF AT 2:30PM UNLESS STATED
ENERGIA AIL MEN'S DIVISION 1A - ROUND 4
Ballynahinch v Lansdowne, Ballymacarn Park
Old Belvedere v Clontarf, Ollie Campbell Park
Old Wesley v Young Munster, Energia Park
St. Mary's Col. v Terenure Col., Templeville Road
UCD v Cork Con, UCD Bowl
ENERGIA AIL MEN'S DIVISION 1B - ROUND 4
Instonians v Naas, Shaw's Bridge, (KO: 2:00pm)
Blackrock Col. v City of Armagh, Stradbrook
Dublin Uni. v Nenagh Ormond, College Park
MU Barnhall v Highfield RFC, Parsonstown
UCC Rugby v Garryowen, The Mardyke
ENERGIA AIL MEN'S DIVISION 2A - ROUND 4
Dungannon v Shannon RFC, Stevenson Park
Galwegians v Ballymena, Crowley Park (12:30pm)
Queen's Uni. v Greystones, The Dub
UL Bohemian v Corinthians, UL 4G
Wanderers v Cashel RFC, Merrion Road
ENERGIA AIL MEN'S DIVISION 2B NORTH - ROUND 4
Banbridge v Enniskillen RFC, Rifle Park
Malahide v Sligo, Estuary Road
Navan v Ballyclare RFC, Balreask Old
Rainey RFC v Malone, Hatrick Park
Skerries v Clogher Valley, Holmpatrick
ENERGIA AIL MEN'S DIVISION 2B SOUTH - ROUND 4
Bruff v Dolphin, Kilballyowen Park
Buccaneers v Bective Rangers, Dubarry Park
Clonmel v Thomond RFC, Ard Gaoithe
Midleton v Monkstown, Towns Park
Old Crescent v Enniscorthy, Takumi Park