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Tri-Valley Invitational 2026: girls varsity water polo, Oct 16–17, Foothill, Granada and Livermore High Schools and the Robert Livermore Aquatic Center, Pleasanton and Livermore, CA

Tri-Valley Invitational · History

Tri-Valley Invitational

Girls varsity water polo · every champion, every final standing, both divisions · 2025

The 2025 Invitational is in the books: 64 of 64 games decided by 32 teams in two divisions at Amador Valley, Foothill, Granada and Livermore. The 2026 edition is October 16–17, 2026; its results join this page once the host posts them. Here’s who won, who climbed, and the stories the tables don’t tell.

Champions

YearChampionshipPremiere
2025Alhambra

14⁠–⁠6 over Bishop O'Dowd

Third: Amador Valley

Livermore

10⁠–⁠9 over Granite Bay

Third: Mitty

The stories the tables don’t tell

Computed straight from the 2025 results. When the 2026 results are in, this section adds who came back, who changed division, who climbed and who went back to back.

2025 · Championship

Alhambra took the title, 14⁠–⁠6 over Bishop O'Dowd.

On Friday it beat Harker 11⁠–⁠3 in the Pool B first round, then beat Castilleja 20⁠–⁠16 in the Pool B winners’ game. On Saturday it beat Amador Valley 11⁠–⁠7 in the semifinal, places 1–4, then beat Bishop O'Dowd 14⁠–⁠6 in the final. Amador Valley took third, 10⁠–⁠1 over College Park.

2025 · Premiere

Livermore took the title, 10⁠–⁠9 over Granite Bay.

On Friday it beat St. Ignatius 12⁠–⁠6 in the Pool H first round, then beat Liberty 10⁠–⁠6 in the Pool H winners’ game. On Saturday it beat Rio Americano 16⁠–⁠6 in the semifinal, places 1–4, then beat Granite Bay 10⁠–⁠9 in the final. Mitty took third, 11⁠–⁠3 over Rio Americano.

2025 · Championship · Seeded 3rd in Pool A

Slotted for 9th–12th. Finished 4th.

College Park was listed 3rd in Pool A, and a pool’s 3rd seed is slotted for Saturday’s group playing for 9th to 12th place. On Friday it beat Clovis East 10⁠–⁠2 in the Pool A first round, then beat Alameda 9⁠–⁠7 in the Pool A winners’ game. On Saturday it lost to Bishop O'Dowd 11⁠–⁠8 in the semifinal, places 1–4, then lost to Amador Valley 10⁠–⁠1 in the 3rd-place game. No 2025 Championship team finished further above its seed’s band: 5 places.

POOL SEEDFINISH1st seeds1st–4th2nd seeds5th–8th3rd seeds9th–12th4th seeds13th–16th116Alameda: seeded 1st in Pool A, finished 8thClovis East: seeded 2nd in Pool A, finished 15thGranada: seeded 4th in Pool A, finished 11thAlhambra: seeded 1st in Pool B, finished 1stCastilleja: seeded 2nd in Pool B, finished 6thCastro Valley: seeded 3rd in Pool B, finished 9thHarker: seeded 4th in Pool B, finished 13thAmador Valley: seeded 1st in Pool C, finished 3rdCalifornia: seeded 2nd in Pool C, finished 7thChristian Brothers: seeded 3rd in Pool C, finished 12thLeigh: seeded 4th in Pool C, finished 16thBerkeley: seeded 1st in Pool D, finished 5thBishop O'Dowd: seeded 2nd in Pool D, finished 2ndGarces Memorial: seeded 3rd in Pool D, finished 10thDel Oro: seeded 4th in Pool D, finished 14thCollege Park: seeded 3rd in Pool A, finished 4th4thCollege Park
Every placed 2025 team: pool seed and finish
2025: pool seed and finish
TeamSeedSlotted forFinish
AlhambraB11st–4th1st
Bishop O'DowdD25th–8th2nd
Amador ValleyC11st–4th3rd
College ParkA39th–12th4th
BerkeleyD11st–4th5th
CastillejaB25th–8th6th
CaliforniaC25th–8th7th
AlamedaA11st–4th8th
Castro ValleyB39th–12th9th
Garces MemorialD39th–12th10th
GranadaA413th–16th11th
Christian BrothersC39th–12th12th
HarkerB413th–16th13th
Del OroD413th–16th14th
Clovis EastA25th–8th15th
LeighC413th–16th16th

Seeds are the host’s Friday pool order, proven by the first-round pairings (1 v 4, 2 v 3). Lines rising left to right beat their band.

2025 · Premiere · Seeded 3rd in Pool E

Slotted for 9th–12th. Finished 4th.

Rio Americano was listed 3rd in Pool E, and a pool’s 3rd seed is slotted for Saturday’s group playing for 9th to 12th place. On Friday it beat Northgate 10⁠–⁠4 in the Pool E first round, then beat Heritage 8⁠–⁠7 in the Pool E winners’ game. On Saturday it lost to Livermore 16⁠–⁠6 in the semifinal, places 1–4, then lost to Mitty 11⁠–⁠3 in the 3rd-place game. No 2025 Premiere team finished further above its seed’s band: 5 places.

POOL SEEDFINISH1st seeds1st–4th2nd seeds5th–8th3rd seeds9th–12th4th seeds13th–16th116Heritage: seeded 1st in Pool E, finished 5thNorthgate: seeded 2nd in Pool E, finished 10thWillow Glen: seeded 4th in Pool E, finished 15thLas Lomas: seeded 1st in Pool F, finished 6thMitty: seeded 2nd in Pool F, finished 3rdTerra Linda: seeded 3rd in Pool F, finished 16thSanta Catalina: seeded 4th in Pool F, finished 11thGranite Bay: seeded 1st in Pool G, finished 2ndMerced: seeded 2nd in Pool G, finished 13thSanta Cruz: seeded 3rd in Pool G, finished 8thTamalpais: seeded 4th in Pool G, finished 9thLiberty: seeded 1st in Pool H, finished 7thLivermore: seeded 2nd in Pool H, finished 1stSt. Ignatius: seeded 3rd in Pool H, finished 14thSt. Mary's: seeded 4th in Pool H, finished 12thRio Americano: seeded 3rd in Pool E, finished 4th4thRio Americano
Every placed 2025 team: pool seed and finish
2025: pool seed and finish
TeamSeedSlotted forFinish
LivermoreH25th–8th1st
Granite BayG11st–4th2nd
MittyF25th–8th3rd
Rio AmericanoE39th–12th4th
HeritageE11st–4th5th
Las LomasF11st–4th6th
LibertyH11st–4th7th
Santa CruzG39th–12th8th
TamalpaisG413th–16th9th
NorthgateE25th–8th10th
Santa CatalinaF413th–16th11th
St. Mary'sH413th–16th12th
MercedG25th–8th13th
St. IgnatiusH39th–12th14th
Willow GlenE413th–16th15th
Terra LindaF39th–12th16th

Seeds are the host’s Friday pool order, proven by the first-round pairings (1 v 4, 2 v 3). Lines rising left to right beat their band.

2025 · The close ones

Nine in 2025 decided by one goal.

  • Bishop O'Dowd12⁠–⁠11Garces MemorialChampionship · Pool D first round
  • Granada9⁠–⁠8Clovis EastChampionship · Pool A third-place game
  • Rio Americano8⁠–⁠7HeritagePremiere · Pool E winners’ game
  • Northgate5⁠–⁠4St. Mary'sPremiere · Semifinal, places 9–12
  • Las Lomas12⁠–⁠11Santa CruzPremiere · Semifinal, places 5–8
  • Castro Valley10⁠–⁠9Garces MemorialChampionship · 9th-place game
  • Santa Catalina7⁠–⁠6St. Mary'sPremiere · 11th-place game
  • California10⁠–⁠9AlamedaChampionship · 7th-place game
  • Livermore10⁠–⁠9Granite BayPremiere · Final

2025 · The widest margins

Berkeley by 15 over Del Oro.

  • Berkeley20⁠–⁠5Del OroChampionship · Pool D first round
  • Amador Valley14⁠–⁠1LeighChampionship · Pool C first round
  • Heritage16⁠–⁠4Willow GlenPremiere · Pool E first round
  • Livermore16⁠–⁠6Rio AmericanoPremiere · Semifinal, places 1–4
  • St. Ignatius15⁠–⁠5Willow GlenPremiere · Semifinal, places 13–16

The host runs a running clock from a seven-goal lead, so a wide margin is also a short game.

Final standings

2025

October 17–18, 2025 · the host’s published placement tables, from the host’s own schedule workbook, every score in. Tap a school for its season page.

How this page is built

2025’s names and scores are read from the host’s own schedule workbook, every score in. Standings are the host’s own placement tables, one per division, exactly as published; nothing here re-derives them. The round of each Saturday game is read back from those tables: the game between the teams that finished 1st and 2nd is the final, 3rd and 4th the third-place game, and so on down to 15th. Friday’s rounds follow the pool: two first-round games, then the winners’ game and the third-place game.

Each division seeds four pools of four, and Saturday’s groups take the pools’ winners, runners-up, thirds and fourths in turn, so a pool seed carries a band of places rather than a rank; the seed chart uses that band. The 2025 pool lists are seeds: Friday’s first round pairs 1 v 4 and 2 v 3 in every pool. The host’s sheets do not mark overtime, so no overtime story is told. 2025, Gm 9: The host’s sheet names Leigh here, a Championship team. Pool E’s winners’ game is Heritage v Rio Americano, and both teams’ Saturday places fit that. The host’s spellings (Tamalpias, St Mary, Castilellja, Garces) are matched to the schools’ names.

Not affiliated with the tournament host. Spot something wrong? The host’s published results always win. Tell us and we’ll fix this page.

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