Walsh's playing career was influenced by his paternal aunt Alice who has inspired him through every path of his career. Alice was known for her hockey career. It is true he would not be who he is today without her. Walsh's discipline on the pitch is inspired by his other aunt, Mary who is known for her all elbows approach.
Colleges During his schooling at
St Kieran's College in
Kilkenny, Walsh established himself as a key member of the senior hurling team. In 1999 he won his first
Leinster medal following a 3–13 to 1–11 defeat of Dublin Colleges. Walsh added a second Leinster medal to his collection in 2000, as Dublin Colleges were defeated by 2–13 to 1–10.
St Flannan's College provided the opposition in the subsequent All-Ireland decider. Having come close to beating the
Ennis-based school at the same stage the previous year, St. Kieran's made no mistake this time and recorded a 1–10 to 0–9 victory, giving Walsh an
All-Ireland medal.
University During his studies at
University College Cork, Walsh was an automatic inclusion on the
college hurling team. In 2004, he was at left wing-back as UCC faced
Waterford Institute of Technology in the final of the
Fitzgibbon Cup. Against the wind, Waterford rallied with late scores to overhaul Cork, with a last minute free from Wexford senior
Rory Jacob being the clinching score in an 0–11 to 0–9 defeat for Walsh's side.
Club Walsh has been heavily involved with the Tullaroan club for many years. He enjoyed much success at juvenile level, claiming championship medals from primary school up to under-16 grades. The highlight of his juvenile career came in 1997 when he was part of the Féile na nGael-winning Tullaroan side. In 1999 Walsh was a key member of the Tullaroan minor team. A 1–16 to 0–6 trouncing of
Shamrocks gave him a championship medal. Two years later in 2001 Walsh had joined the Tullaroan under-21 team that faced
Carrickshock in the championship decider. A 1–14 apiece draw was the result on that occasion, however, Tullaroan claimed a 2–16 to 2–7 victory in the replay. By this stage Walsh had joined the Tullaroan senior team. After playing a number of challenge and Byrne Cup games he later became a championship regular.
Minor and under-21 Walsh first played for Kilkenny at the turn of the century when he joined the minor side. He won his sole
Leinster medal in 2001 following a 3–16 to 1–9 trouncing of
Wexford. By 2003 Walsh was a key member of the Kilkenny under-21 team. He won his first
Leinster medal that year following a 0–12 to 1–4 defeat of
Dublin. Kilkenny later faced
Galway in the All-Ireland decider. "The Cats" outsmarted a Galway side which struggled in attack and conceded a goal a minute into the second half. The 2–13 to 0–12 score line gave Walsh his first
All-Ireland medal in the grade. Walsh collected a second Leinster medal in 2004, as Wexford were downed once again by 0–16 to 2–3. The subsequent All-Ireland final between Kilkenny and old rivals
Tipperary was a total mismatch. "The Cats" scored key goals early in the opening half, which helped power them to a 3–21 to 1–6 victory.
Senior Beginnings Walsh was just out of the minor grade when he was added to the Kilkenny senior panel in 2002. That year he shared in his county's
Leinster and
All-Ireland triumphs, however, Walsh was yet to make his debut. In 2003 Walsh became a regular member of the starting fifteen during Kilkenny's successful run to the final of the
National Hurling League. Kilkenny came back from eight points down to secure a stunning 5–14 to 5–13 extra-time defeat of
Tipperary, with Walsh collecting his first league medal. He later made his senior championship debut on 7 June 2003 in a 3–16 to 0–10 Leinster semi-final defeat of
Dublin. Walsh went on to collect his first Leinster medal on the field of play, as Kilkenny defeated Wexford by 2–23 to 2–12. The subsequent All-Ireland final on 14 September 2003 saw Kilkenny face
Cork for the first time in four years. Both teams remained level for much of the game, exchanging tit-for-tat scores. A
Setanta Ó hAilpín goal gave Cork the advantage, however, a
Martin Comerford goal five minutes from the end settled the game as Kilkenny went on to win by 1–14 to 1–11. It was Walsh's first All-Ireland medal on the field of play. He was later honoured with his first
All-Star award. After facing a shock, last-minute 2–15 to 1–16 defeat by Wexford in the Leinster semi-final in 2004, Kilkenny worked their way through the qualifiers and lined out against Cork in the All-Ireland decider on 12 September 2004. The game was expected to be a classic, however, a rain-soaked day made conditions difficult as Kilkenny aimed to secure a third successive championship. The first half was a low-scoring affair and provided little excitement for fans, however, the second half saw Cork completely take over. For the last twenty-three minutes Cork scored nine unanswered points and went on to win the game by 0–17 to 0–9. Kilkenny ended the year with no silverware, however, Walsh was still presented with a second consecutive All-Star award. Kilkenny were back in form in 2005, with Walsh winning a second National League medal following a 3–20 to 0–15 victory over Clare. "The Cats" later struggled against a wasteful Wexford side, however, a 0–22 to 1–16 victory gave Walsh a second Leinster medal. While a third successive All-Ireland showdown with Cork seemed likely, Galway defeated Kilkenny in the All-Ireland semi-final in one of the games of the decade. Walsh later added a third successive All-Star award to his collection.
Four-in-a-row In 2006 Walsh added a third National League medal to his collection following a 3–11 to 0–14 victory over
Limerick. He later won his third Leinster medal following another facile 1–23 to 1–12 victory over Wexford. On 3 September 2006 Kilkenny faced a Cork team who were presented with the opportunity to become the first side in nearly thirty years to secure three successive All-Ireland championships. Like previous encounters neither side took a considerable lead, however, Kilkenny had a vital goal from
Aidan Fogarty. Cork were in arrears coming into the final few minutes, however,
Ben O'Connor scored a late goal for Cork. It was too little too late as the Cats denied Cork on a score line of 1–16 to 1–13. Walsh, whose uncle died just a few hours before the game, collected his second All-Ireland medal. He rounded off the year once again by claiming a fourth successive All-Star award. Walsh collected a fourth Leinster medal in 2007, as Kilkenny asserted their provincial dominance and defeated Wexford by 2–24 to 1–12. On 2 September 2007 Kilkenny faced defeated Munster finalists and surprise All-Ireland semi-final winners Limerick in the championship decider. Kilkenny got off to a flying start with
Eddie Brennan and
Henry Shefflin scoring two goals within the first ten minutes to set the tone. Limerick launched a second-half comeback, however, "the Cats" were too powerful and cruised to a 2–19 to 1–15 victory. It was Walsh's third All-Ireland medal. He was later presented with a fifth successive All-Star award. Kilkenny secured the Leinster crown again in 2008, with Walsh collecting a fifth winners' medal following a 5–21 to 0–17 defeat of Wexford. On 8 September 2008 Kilkenny faced
Waterford in the All-Ireland decider for the first time in forty-five years. In a disappointingly one-sided final, Kilkenny produced a near perfect seventy minutes as Waterford endured a nightmare afternoon. A 23-point winning margin, 3–24 from play, only two wides in the entire match and eight scorers in all with Eddie Brennan and Henry Shefflin leading the way in a 3–30 to 1–13 victory. It was Walsh's fourth All-Ireland medal, while a sixth consecutive All-Star quickly followed. Walsh collected a fourth National League medal in 2009, as Kilkenny beat Tipperary by 2–26 to 4–17 with a thrilling extra-time victory. He later won a fifth successive Leinster medal, as new challengers Dublin were bested by 2–18 to 0–18. On 6 September Kilkenny were poised to become the second team ever in the history of hurling to win four successive All-Ireland championships when they faced Tipperary in the decider. For long periods Tipp looked the likely winners, however, late goals from Henry Shefflin and substitute
Martin Comerford finally killed off their efforts to secure a 2–22 to 0–23 victory. Walsh had collected his fifth All-Ireland medal, however, the game was not without incident for him. A wild pull on him by
Benny Dunne was punished with a red card. Walsh later collected a seventh successive All-Star award, while he also picked up the
Texaco,
Vodafone and
GPA Hurler of the Year awards.
Continued dominance In 2010 Kilkenny defeated Galway in an eagerly-anticipated but ultimately disappointing provincial decider. A 1–19 to 1–12 victory gave Walsh a seventh Leinster medal. The drive for a fifth successive All-Ireland crown reached a head on 5 September 2010, when Kilkenny faced Tipperary in the All-Ireland decider. "The Cats" lost talisman Henry Shefflin due to injury, while Tipperary's Lar Corbett ran riot and scored a hat-trick of goals as Walsh's side fell to a 4–17 to 1–18 defeat. In spite of this defeat, Walsh later won an eight successive All-Star award. Kilkenny's stranglehold in Leinster continued in 2011. A 4–17 to 1–15 defeat of Dublin gave "the Cats" a record-equalling seventh successive championship. It was Walsh's eighth winners' medal overall. Kilkenny subsequently faced Tipperary in a record-breaking seventh successive All-Ireland decider on 4 September 2011. Goals by
Michael Fennelly and
Richie Hogan in either half gave Kilkenny, who many viewed as the underdogs going into the game, a 2–17 to 1–16 victory. Walsh, who collected a sixth All-Ireland medal, was lucky not to have received a red card as a wild strike of his hurley caught referee
Brian Gavin on the bridge of the nose, resulting in a four-minute stoppage. He later collected a ninth successive All-Star award. 2012 began well for Walsh when he collected a fifth National League medal following a 3–21 to 0–16 demolition of old rivals Cork. Kilkenny were later shocked by Galway in the Leinster decider, losing by 2–21 to 2–11, however, both sides subsequently met in the All-Ireland decider on 9 September 2012. Kilkenny had led going into the final stretch, however,
Joe Canning struck a stoppage time equaliser to level the game at 2–13 to 0–19 and send the final to a replay for the first time since 1959. The replay took place three weeks later on 30 September 2012. Galway stunned the reigning champions with two first-half goals, however, Kilkenny's championship debutant
Walter Walsh gave a man of the match performance, claiming a 1–3 haul. The 3–22 to 3–11 Kilkenny victory gave Walsh a seventh All-Ireland medal.
Decline Kilkenny's dominance showed no sign of abating in 2013, with Walsh winning a sixth National League medal following a 2–17 to 0–20 defeat of Tipperary in the decider. During the 2014 league campaign a loss of form saw Walsh being dropped from Kilkenny's starting fifteen in favour of his brother Pádraig. He was an unused substitute as "the Cats" claimed a third successive league crown following a 2–25 to 1–27 defeat of Tipperary. He failed to convince manager
Brian Cody and remained on the bench for Kilkenny's championship opener against Offaly. Walsh made a number of cameo appearances during the provincial campaign, but played no part in Kilkenny's Leinster final triumph. He also remained on the bench during the All-Ireland series, however, he collected a ninth All-Ireland medal, his second as a non-playing substitute, following a 2–17 to 2–14 defeat of Tipperary in the decider. On 20 November 2014 Walsh announced his retirement from inter-county hurling. In a released statement he said "I wish to announce my retirement from intercounty hurling. For the last 13 years I have had the time of my life, lived my dream and have memories that will stay with me forever."
Inter-provincial In 2006 Walsh was at right wing-back on the Leinster team that faced
Connacht in the inter-provincial final. A disappointing contest resulted in a 1–23 to 0–17 victory for Leinster, and a first
Railway Cup medal for Walsh. After surrendering their title the following year, Leinster were back in the decider once again in 2008 with Walsh as captain.
Richie Power top-scored with nine points as Leinster secured a 1–15 to 1–12 victory. It was Walsh's second Railway Cup medal, while he also had the honour of collecting the cup. Leinster made it two-in-a-row in 2009, with Walsh collecting his third winner's medal as Leinster defeated Connacht by 3–18 to 1–17. After a two-year hiatus and a period of uncertainty surrounding the competition, the Railway Cup returned in 2012 with Leinster facing Connacht in the decider. The game was effectively over at half time, with Leinster powering to an eventual 2–19 to 1–15 victory. In 2014 Walsh lined out in his last Railway Cup decider. Just 150 spectators turned up to
Croke Park as Leinster walloped Connacht for the third time in four finals by 1–23 to 0–16.
International Walsh was picked for duty with the
national team in 2008, as Ireland faced
Scotland in the
composite rules shinty-hurling series of games. The Scots narrowly won the game by 1–10 to 1–9. In 2009 Walsh was appointed captain of the team as Ireland travelled to
Bught Park for the one-leg clash. Ireland won the series with an aggregate score of 7–21 to 5–23, with Walsh collecting the cup for the second year in succession. After a one-year absence, Walsh returned to the squad in 2012. He later collected a third winners' medal as Ireland defeated Scotland with an aggregate score of 11–21 to 6–12. ==Recognition==