Lisnagarvey went to the top of the Irish Men's Hockey League on Saturday after a 3-1 win over bottom club Annadale in the Ulster derby clash.
Previous leaders Monkstown lost for the first time this season at Glenanne while a late Eugene Magee goal gave Banbridge a narrow win over Cookstown.
In the women's IHL, Pegasus and Ards lost to Railway Union and Cork Harlequins respectively.
Hermes kept up their 100% record at the top winning their eighth straight game.
Lisnagarvey's fifth win in a row saw them climb above Monkstown and into first place in the standings.
Sean Murray's goal after just 64 seconds gave them the perfect start against Annadale as the Irish international turned in Andy Williamson's cross.
Annadale, without a win in the new league, hit back soon afterwards through Connor Roberts but in an action packed first quarter it was Timmy Cockram's goal from a penalty corner that gave the home side the lead once again.
As conditions worsened both sides created but couldn't convert their chances but Garvey made the game safe with seven minutes remaining when Cockram's flick from another penalty corner made the score 3-1.
Monkstown's first defeat of the season came at home, 3-2, to Glenanne despite taking the lead through Andrew Ward.
Second half goals from David Keogh and two penalty corner strikes from Shannon Boucher gave the visitors the lead, one that a late goal from Lee Cole couldn't alter.
Banbridge are four points off top spot in third place but they were made to work very hard by a resilient Cookstown side whose goalkeeper Ian Hughes was outstanding.
Hughes thwarted chance after chance for Banbridge and the game looked like it was going to end scoreless but with five minutes left Magee, who earlier hit the post with a drag flick from a penalty, buried another opportunity to give his side three valuable points.
Three Rock Rovers moved up to fourth place with a 4-3 win over Cork C of I despite a third hat-trick of the season for John Jermyn, all from penalty corners.
Sothern discharged from hospital following injury
Alan Sothern gave Pembroke Wanderers the lead against Railway Union but with the game level at 1-1 late in the final quarter Sothern suffered a neck injury.
It caused the game to be delayed for over half an hour as all precautions were taken and the Irish international forward was taken to hospital.
He was later discharged and will undergo concussion protocols over the next few days but the injury isn't thought to be serious. The game ended 1-1.
In the women's IHL the three-game winning streak for Pegasus came to an end as a first period goal from Nina Heisterkamp was enough for Railway Union to win the game 1-0 and move up to second place in the table ahead of Ulster Elks whose game against Greenfields was postponed.
Hermes still have a seven point lead at the top after they made it eight wins in a row to start the season with a 5-1 victory over Pembroke.
Ards missed a chance to move into the top half of the table as goals from Rachel Hobbs and Olivia Roycroft gave Cork Harlequins a 2-0 win at Londonderry Park.
Pembroke Wanderers 1-1 Railway Union
Three Rock Rovers 4-3 Cork C of I
Monkstown 2-3 Glenanne
Banbridge 1-0 Cookstown
Lisnagarvey 3-1 Annadale
Ulster Elks P-P Greenfields
UCC P-P UCD
Railway Union 1-0 Pegasus
Ards 0-2 Cork Harlequins
Hermes 5-1 Pembroke Wanderers