Big Brother 4
The winner is hidden (spoiler-safe). Jun Song won 6–1 over Alison Irwin. July 8, 2003 – September 24, 2003. Step through every week below.
The story of this season
What this shows: Written automatically from the season's results, so every line comes from the data credited at the bottom of the page.
13 strangers moved into the house. The season premiered on July 8, 2003. Jun won 6–1 over Alison after 82 days.
Amanda was the first to go, evicted 9–0 in Week 1. Of the season's 8 house votes with recorded ballots, 4 were unanimous. In the other 4, at least one person voted .
Scott (expelled, Week 1) left without a vote. From Dana in Week 4 onward, everyone evicted joined the .
How Big Brother works
What this shows: Strangers live in a house full of cameras. Every week follows the same four steps, and every week someone leaves.
- Someone winsA competition decides the week's boss. They are safe and they pick who is at risk.
- The HOH people for evictionUsually two people go on the block.
- Someone wins theThe winner can save one nominee. The HOH then names a .
- The house votes in anEveryone except the HOH and the nominees votes. The nominee with the most votes leaves.
How it ends: late in the season, evicted players join the . When two players are left, the jury votes for the winner.
Rules in full: HOH · Nominations · Veto · Eviction · Jury · all topics →
The house
What this shows: This season's house design, its stand-out rooms and what changed from the season before, in our own words.
Listed by the Big Brother Wiki as "70's Retro".
Built at CBS Studio Center in Los Angeles (the original one-storey house used for seasons 1-5).
- Diary RoomDiary roomWhere the compulsory eviction votes were cast privately with host Julie Chen.
- Evictees left the house for an adjacent studio to be interviewed live by Julie Chen.
Our own summary of the cited pages. Sources: Big Brother 4 (American season) (CC BY-SA 4.0), Big Brother 4 (US) (CC BY-SA 3.0), Big Brother House/United States (CC BY-SA 3.0). Photos hotlinked from the Big Brother Wiki.
The whole season on one line
What this shows: Every week's , and other competitions with the winners, who was evicted and by what vote, and the twists. Tap a competition for its history.
- Spoiler-safe. The rest of the season is hidden until you've watched it.
- Have-Not / foodX Marks The Spotwinner not recorded
- HOHWho's Ya Chum?Nathan
VetoFeeling KnottyDana- Have-Not / foodSpudswinner not recorded
- VDana kept the Veto unused
- Have-Not / foodX Marks The Spot
- Spoiler-safe. The rest of the season is hidden until you've watched it.
HOHMajority RulesJee- VetoDuck BallDavid
Have-Not / foodClash Of The Casseroles
+25 winners
- Michelle evicted6–2
- VDavid kept the Veto unused
- Spoiler-safe. The rest of the season is hidden until you've watched it.
- HOHEverything In 3'sDana
VetoNiagara BallsNathan- Have-Not / foodParatrooperswinner not recorded
- LuxurySpin-O-MaticAlison
- David evicted5–2
- VNathan used the Veto
- ↻Replacement nominee: David
- HOHEverything In 3's
- Spoiler-safe. The rest of the season is hidden until you've watched it.
- Jury starts
HOHAround The Water CoolerAlison- VetoSnake In The GrassRobert
- Have-Not / foodLaying Pipe
4 winners
- Dana evicted6–0
- VRobert kept the Veto unused
- Spoiler-safe. The rest of the season is hidden until you've watched it.
HOHWho Said It?Justin- VetoQuoridorRobert
- Have-Not / food50 Ways To Cook A Houseguestwinner not recorded
LuxuryFoam Partywinner not recorded
- Nathan evicted5–0
- VRobert kept the Veto unused
- Spoiler-safe. The rest of the season is hidden until you've watched it.
HOHSteel Cage MatchErika- VetoVideo VetoJun
- Have-Not / foodClambake From Hellwinner not recorded
- Justin evicted3–1
- VJun kept the Veto unused
- Spoiler-safe. The rest of the season is hidden until you've watched it.
- Jack evicted2–1
- VJee kept the Veto unused
- Spoiler-safe. The rest of the season is hidden until you've watched it.
- HOHDisappearing ActJun
- VetoWhere in the World is Jun?Alison
- Have-Not / foodBig Brother Ball Roomwinner not recorded
- Jee evicted2–0
- VAlison used the Veto
- ↻Replacement nominee: Robert
- HOHDisappearing Act
- Spoiler-safe. The rest of the season is hidden until you've watched it.
HOHDearly DepartedRobert- VetoFinal VetoAlison
- Have-Not / foodMexotic Dinnerwinner not recorded
- LuxuryEscape From Big Brother
Alison & Jun
- Erika evicted by Alison1–0
- VAlison used the Veto
- ↻Replacement nominee: Erika
- Spoiler-safe. The rest of the season is hidden until you've watched it.
- Finale: Jun wins
- HOHExact MatchAlison
- LuxuryRunaway JuryRobert
- HOHOn The HouseAlison
HOHUnexpected RelationsJun
- Robert evicted by Alison1–0
Week 1, 1st eviction, before the vote: Amanda and Jee facing eviction.
Week 1 in the house
What this shows: What happened this week, step by step. Use Before vote to guess the result, then After vote to see it.
NathanNathan Marlow · Personal trainerWon the HOH competition "Who's Ya Chum?"- Nathan's
AmandaJee 
DanaDana Varela · Karate school managerWon "Feeling Knotty"Dana chose not to use it, so the nominations stayed the same.
AmandaOn the block
JeeOn the block9 houseguests vote. Who goes? Make your pick, then tap After vote.
Your call: who goes home?
What this shows: A guessing game. Tap your pick, then switch to After vote. Picks stay on this page only.
Who had the power
What this shows: Each column is one round. It shows who was , who won the and who left. Tap a column to jump there, or switch to the race to see running wins.
2 points. Week: 1 to 1. HOH and Veto wins: 1 to 1.
One line per houseguest who has won so far; the top three are labelled. Tap a dot for the numbers, or to follow that houseguest.
Who's who
What this shows: All 13 houseguests at Week 1 (before the vote), with and wins so far. Tap anyone to follow them across the page (their profile is in the Following chip).
Still in the house · 13
Who got votes
What this shows: How many eviction votes had each houseguest's name on, up to Week 1 (before the vote). Switch to the table for votes cast, how often they voted with the house, and wins and weeks in the house. Tap anyone to follow them.
No eviction votes yet.
| 0 | 0 | – | 0 | 0 | 1 | |
| 0 | 0 | – | 0 | 0 | 1 | |
| 0 | 0 | – | 0 | 0 | 1 | |
| 0 | 0 | – | 0 | 0 | 1 | |
| 0 | 0 | – | 0 | 0 | 1 | |
| 0 | 0 | – | 0 | 0 | 1 | |
| 0 | 0 | – | 0 | 0 | 1 | |
| 0 | 0 | – | 1 | 0 | 1 | |
| 0 | 0 | – | 0 | 1 | 1 | |
| 0 | 0 | – | 0 | 0 | 1 | |
| 0 | 0 | – | 0 | 0 | 1 | |
| 0 | 0 | – | 0 | 0 | 1 | |
| 0 | 0 | – | 0 | 0 | 1 |
How everyone voted
What this shows: Each row is a houseguest; each column is a round. A cell shows who that person voted to . Purple cells are votes . Tap any cell for the full story, or a name to follow that houseguest: their row moves to the top and every vote against them is outlined.
| Houseguest | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Result | Amanda9–0 | Scottexpelled | Michelle6–2 | David5–2 | Dana6–0 | Nathan5–0 | Justin3–1 | Jack2–1 | Jee2–0 | Erika1–0 | Robert1–0 | Alison6–1 |
Tap a cell to see what that vote means. Swipe the table sideways to see every week; names stay pinned on the left.
Who voted with whom
What this shows: Each circle is a houseguest. A line joins two who voted to the same person, thicker the more often, up to Week 1 (before the vote). Players who often voted together sit close. Tap anyone to follow them.
13 players and no shared votes yet.
- In the house
- Out of the house
Named
Tap a houseguest to see who they voted with most. Tap empty space to clear.
From the Big Brother WikiAlliance details · 3
When each named alliance or showmance formed and ended, and how often its members voted to evict the same person. Faded = not formed yet or already over at this week; grey names are out of the house.
Elite Eight
ActiveFormed Week 1 · ended Week 4: ended in a betrayal
The eight original houseguests teamed up on day one to evict the exes who arrived as the season's twist. Trust frayed within weeks, and Dana's switch in week four broke it. Alison, Erika and Jun later regrouped as Girl Power.
Voted together in 3/4 evictionsSource: bigbrother.fandom.com ↗
Three Stooges
ActiveFormed Week 1 · ended Week 10: members picked off
Jee, Justin and Robert bonded as the male exes in week one and briefly drew Dana and Jun to their side. Girl Power evicted them one by one in the closing weeks.
Voted together in 5/5 evictionsSource: bigbrother.fandom.com ↗
Girl Power
Forms in Week 7Formed Week 7 · ended Week 9: split in the endgame
Alison and Jun brought Erika in late, flipping the vote to evict Jack instead of her. The trio then cleared out the last of the Three Stooges, but only two could go to the end, and Alison and Jun picked each other.
Voted together in 2/2 evictionsSource: bigbrother.fandom.com ↗
Who was in danger
What this shows: before each , the 5 houseguests a simple score ranked most at risk, and whether the person evicted was one of them. Tap a name to follow them.
Week 1: 11 houseguests at risk, Nathan and Dana safe with HOH or the Veto.
Switch to After vote in This week to see who went and whether we had them.
No counted votes yet so far.
How this is scored
| Input | Points |
|---|---|
| Eviction votes received so farper eviction vote with their name on it, all season | +1 |
| Votes at the last evictionper vote against them at the most recent eviction | +2 |
| Times nominatedper earlier week on the block (first nominee or replacement) | +2 |
| Earlier HOH and Veto winsper earlier win: comp winners are seen as threats (this week's HOH and Veto holder are safe and left out) | +1 |
| Voted against the houseif their last eviction vote went against the majority | +3 |
Scored once the week's and winners are known (they are safe and left out), but without this week's , which would give the answer away. Only things that already happened count. Ties are listed A to Z. A vote counts toward the hit rate when more than 5 people were at risk and at least one of them had a score.
This is a simple model, not a prediction engine: it can't see alliances forming, camp life, idols nobody knows about or the house's side deals. The “by chance” number is what picking 5 names at random would score on the same votes.
Week 1 takes
What this shows: Rob Has a Podcast episodes and Taran Armstrong's live-feed updates from this week. Links open the original; videos play here only when you tap Play.
- Big Brother 4 Blockumentary | Week OneMay 22, 2020Taran Armstrong· matched by its title
How the jury voted, juror by juror
What this shows: Each , in the order they joined the jury: how they left, who nominated or evicted them, and which they voted for to win. ● is their vote; ✕ marks a finalist who helped send them home.
| Juror | ||
|---|---|---|
| voted for Jun | Alison helped get them out | |
| Jun helped get them out | voted for Alison; Alison helped get them out | |
| voted for Jun; Jun helped get them out | Alison helped get them out | |
| voted for Jun; Jun helped get them out | Alison helped get them out | |
| voted for Jun; Jun helped get them out | Alison helped get them out | |
| voted for Jun | Alison helped get them out | |
| voted for Jun | Alison helped get them out |
“Helped” means nominated them as HOH or voted to evict them.
How the jury voted
What this shows: Each voted for one to win. Most votes wins.
No result in our data for this season.
Season picks
What this shows: Long-form Rob Has a Podcast and Taran Armstrong coverage of this season: 12 episodes in our links, 12 with Taran. Week-by-week takes sit next to This week above.
- Big Brother 4: A Weekly Big Brother Season RetrospectiveJan 24, 2025Weekly Big Brother Season RetrospectiveTaran Armstrong
- Big Brother 4 Blockumentary | Jun Song InterviewAug 2, 2020InterviewTaran Armstrong
- Big Brother 4 Blockumentary | Week Ten | FinaleJul 25, 2020Taran Armstrong
- Big Brother 4 Blockumentary | Week NineJul 18, 2020Taran Armstrong
- Big Brother 4 Blockumentary | Week EightJul 11, 2020Taran Armstrong
- Big Brother 4 Blockumentary | Week SevenJul 3, 2020Taran Armstrong
- Big Brother 4 Blockumentary | Week SixJun 27, 2020Taran Armstrong
- Big Brother 4 Blockumentary | Week FiveJun 19, 2020Taran Armstrong
- Big Brother 4 Blockumentary | Week FourJun 12, 2020Taran Armstrong
- Big Brother 4 Blockumentary | Week ThreeJun 6, 2020Taran Armstrong
Watch officially: CBS show page · CBS episodes · CBS videos · Paramount+ · Paramount+ episodes
Titles, dates and links from robhasawebsite.com. We link out and never copy the audio; videos play from youtube-nocookie.com only after you tap Play.
Big Brother words
What this shows: Every term used on this page, in plain English. Tap an underlined word anywhere to see its meaning.
- Jury
- Players knocked out late in the game. They stay on to watch the rest of it, and at the finale they vote for who wins. Rules →
- Finalist
- One of the last two or three players, who face the jury's vote for the win. Rules →
- Returning player
- Someone who had already played the show (or the other show) before this season.
- Boot
- Fan slang for a player being voted out or evicted. "First boot" means the first person out. Rules →
- Blindside
- A player is voted out without seeing it coming, usually because their allies voted against them. Rules →
- Confessionalthe edit
- A short interview to camera, away from the other players, cut into the episode. Fans count them to see whose story the editors are telling.
- HouseguestHG
- What Big Brother calls its players. They live together in a house filled with cameras. Rules →
- Head of HouseholdHOH
- The week's boss, decided by a competition. The HOH can't be nominated, only votes to break a tie, and picks who goes on the block. Rules →
- Nominationson the block
- The players the HOH puts at risk of eviction that week. Being nominated is called being "on the block". Rules →
- Power of VetoPOV
- Won in a competition. The holder can take one nominee off the block, or choose not to use it. Using it is the week's big decision. Rules →
- Replacement nomineerenom
- When the Veto saves someone, a new player goes on the block in their place. Usually the HOH chooses. Rules →
- Backdoor
- A plan to evict someone who wasn't nominated at first: they only go on the block as the replacement after the Veto is used, so they can't play for it. Rules →
- Eviction
- The live vote that sends someone home. Each eligible houseguest secretly votes for one nominee to evict. Rules →
- Against the house
- A vote for the nominee who stayed. The majority picked the other person, so this voter was on the losing side, often a sign they're outside the main alliance.
- Double eviction
- Two full weeks of the game squeezed into one live show, so two people leave the same night. Rules →
- Tie-break vote
- If the eviction vote is tied, the HOH breaks the tie by voting. Rules →
- Sole vote
- With four players left, only the Veto holder votes. They alone decide who leaves.
- Final HOH
- The last HOH competition, played in three parts. The winner takes one person to the end and evicts the other. Rules →
- Have-Not
- A houseguest stuck with cold showers, a hard bed and bland food for the week, usually after losing a competition. Rules →
- America's Favorite PlayerAFP
- A separate prize chosen by viewers at home, not by the players. Rules →
- Block Buster
- A competition for the HOH's nominees, played before the Veto. Whoever wins is saved and comes off the block.
- Battle of the BlockBOTB
- Used in weeks with two HOHs. Each HOH's pair of nominees compete; the winning pair comes off the block and the HOH who nominated them loses their HOH power.
- Triple eviction
- Three full rounds of the game played back to back in one live show, so three people leave the same night.
- Veto players
- The six people who compete for the Power of Veto: the HOH, the nominees, and others picked by random draw.
- Banishment
- Big Brother 1's version of eviction. Houseguests nominated each other, then viewers voted by phone on which nominee had to leave.
- Public vote
- A vote by viewers at home rather than by the players, used for Big Brother 1's evictions and winner.
- Re-entry twistbattle back
- A one-off twist that lets an evicted houseguest earn their way back into the house, through a competition or a vote.
- Team or partner phase
- Some seasons start with houseguests tied to a partner, team or group, so wins, nominations and evictions can apply to more than one person at once.
- Twist
- A rule change for one season or one week, such as an extra competition, a secret power or a returning player.
- Walked
- Left the game by choice, without being evicted.
- Expelled
- Removed from the game by the producers for breaking the rules, with no vote.
- Pre-jury
- Players who left before the jury phase began. They do not vote for the winner.