The Water Polo Tournament at the 2003 Pan American Games had a men's and a women's competition. The women were competing for the second time at the Pan American Games. The event was held in Santo Domingo, Dominican Republic.

Men's competition

Preliminary round TeamPointsGWDLGFGADiff1.14770011519+962.1276018547+383.1075027340+334.974124774–275.672233658–226.371153361–287.371154472–288.170163595–60

August 2, 2003 6 – 611 – 224 – 015 – 6

August 3, 2003 6 – 517 – 55 – 514 – 2

August 4, 2003 12 – 89 – 86 – 514 – 2

August 5, 2003 8 – 818 – 116 – 517 – 6

August 6, 2003 8 – 511 – 411 – 510 – 9

August 7, 2003 19 – 418 – 46 – 710 – 6

August 8, 2003 13 – 28 – 38 – 119 – 4

Semi Final Round August 9, 2003 4 – 216 – 7

8 – 613 – 4

Final round August 10, 2003 — 7th place 10 – 6

August 10, 2003 — 5th place 6 – 5

August 10, 2003 — Bronze-medal match 15 – 4

August 10, 2003 — Gold-medal match 13 – 7

Final ranking

RANKTEAM4.5.6.7.8.

Women's competition

Preliminary round TeamPointsGWDLGFGADiff1.743105314+392.743104913+363.341121932–134.341121641–255.040041047–37

August 3, 2003 6 – 312 – 4

August 4, 2003 20 – 26 – 6

August 5, 2003 19 – 39 – 4

August 6, 2003 15 – 013 – 1

August 7, 2003 6 – 57 – 7

Semi finals August 9, 2003 16 – 27 – 3

Bronze Medal August 10, 2003 6 – 5

Gold Medal August 10, 2003 7 – 3

Final ranking

RANKTEAM4.5.

References Sports123 UOL results