Get trained
This page explains the principles. It is not a substitute for lessons from a qualified polo instructor or club, and it does not replace the rules of your governing body, club or tournament.
The formal definitions of the four positions are on positions. This page covers how clubs, a polo school and coaches describe playing them, and the team principles beginners are taught first. Tactics are learned in practice chukkas under an instructor, not from a page.
What each number does in play
Three sources describe the roles. They agree on the No. 1, No. 3 and No. 4 in broad terms:
| Position | Meadowbrook Polo Club | POLO+10 "Playing Field" (2004) | Argentina Polo School (June 2025) |
|---|---|---|---|
| No. 1 | Marks the opposing No. 4 | Concentrates near the opponent's goal | The striker: receives passes, finishes, pressures the opposing back |
| No. 2 | A forward whose marking job is the opposing No. 3 | Works midfield | An offensive midfielder: the link who makes runs and draws defenders |
| No. 3 | The strongest player and pivot, who sets up the defence and starts the attack, likened to a basketball centre | The captain who coordinates the game | The "field general" who distributes the ball and sets the pace |
| No. 4 | The back: a long hitter who takes the hit-ins and relies on strong backhands | Leads the defence | Mainly defensive, but able to advance or switch play when the opponent is pinned back |
The No. 2: sources differ
The clearest difference is over the No. 2. Meadowbrook calls the No. 2 a forward and gives it the job of marking the opposing No. 3. POLO+10 places the No. 2 in midfield, and Argentina Polo School calls it an offensive midfielder. The descriptions overlap but put the emphasis in different places: Meadowbrook on attack and marking, the other two on the midfield.
Marking and moving
Meadowbrook says that once play starts the players pair off: the No. 1 with the opposing No. 4, and the No. 2 with the opposing No. 3. Each player then has two jobs, to mark the opposite number in defence and to get free of him in attack. POLO+10 says the order stays in line from the No. 4 at the back to the No. 1 in front.
The positions are not fixed. Meadowbrook says the pace of the game often makes players interchange, and Argentina Polo School says players may deliberately swap roles in the middle of play, for example the No. 2 and No. 3 exchanging, to confuse defenders and exploit mismatches.
Line, man, ball
Houston Polo Club instructor Mark Prinsloo teaches beginners a priority order, as Horse Nation reported in May 2015: line, man, ball: the player joins the line first, then takes a man, and only then tries to hit the ball, rather than chasing the ball. POLO+10 calls the line of the ball "the number one rule in polo" and stresses that the line of the ball and right of way are related but are not the same thing.
The rulebooks show why that distinction matters. The HPA's 2026 rules build precedence around the line of the ball (Rule 27), with a separate right of way for the player in possession (Rule 28). The USPA's 2024 Outdoor Rules make Right of Way the central concept (Rule 24). The full rules are on the line of the ball, and the fouls for crossing are on fouls and penalties.
Backing up and missed hits
- Meadowbrook: play runs front to back rather than side to side, so a teammate should be following behind to pick up the play if a player overruns the ball.
- POLO+10: after a poor hit, the player keeps the same speed rather than slowing or turning for a second try, and leaves the next hit to a teammate or circles round to come again from behind.
- Argentina Polo School (2025): lack of support for the ball carrier is a common cause of turnovers. Clustering too close makes an attack easy to defend; spreading out opens passing lanes and angles at goal.
Restarts
- Throw-in. POLO+10's Polo 101 describes both teams lining up at the halfway line facing the umpire, each oriented toward the goal it attacks, with the umpire throwing the ball between them. Later chukkas start with a throw-in at the spot where the previous one ended.
- Knock-in and bowl-in. Dallas Burston Polo Club's glossary likens the knock-in to a football goal kick, and describes the "bowl-in" as the umpire rolling the ball down the centre of the line-up. Meadowbrook says the No. 4 usually takes the hit-ins.
- Penalties. Under the HPA's 2026 rules, the free hits for Penalties 2, 3 and 4 are taken from 30, 40 and 60 yards respectively (Penalty 2 may instead be taken from the spot). The USPA's 2024 Outdoor Rules use the same distances, with Penalty 2 likewise from 30 yards or the spot (Rule 36a), and different conditions on where defenders stand. We found no coach-level written source on how to take a penalty.
Talking on the field
Dallas Burston Polo Club's glossary defines "your line" as a teammate's call telling a player he has the right of way to the ball. Argentina Polo School notes that distance and noise limit talking, so players also rely on body language, trust and anticipation built through repeated practice together.
Talking to the umpires is a different matter. Under the HPA's 2026 rules, only the nominated team captain may speak with the umpires (Rule 2b), and continuing to appeal or argue with the umpires, or excessive appealing by a player not directly involved in the play, is unsportsmanlike conduct (Rule 35). The USPA's 2024 Outdoor Rules list appealing to umpires as unsportsmanlike conduct (Rule 33). The USPA revises its rules each year, so check the current book.
Sources
- Meadowbrook Polo Club, the sport of polo
- POLO+10, Playing Field (2004)
- POLO+10, Polo 101
- Argentina Polo School, coordinated attack in polo (June 2025)
- Horse Nation, Houston Polo Club line of the ball lesson (May 2015)
- Dallas Burston Polo Club, polo terms
- Hurlingham Polo Association, Rules and Regulations for Polo 2026 (Polo South Africa copy, PDF)
- United States Polo Association, 2024 Outdoor Rules (PDF)