Rainmaker Fun
Sports traders let Rainmaker Fun's AI models monitor live games and place trades automatically from their own Polymarket wallet.
Rainmaker fun AI Sports Trading Bot for Polymarket MLB
What is Rainmaker Fun?
Rainmaker fun is a non custodial AI trading tool that automates live sports trades on Polymarket using specialized models for MLB, tennis, and other markets.
Ready to try Rainmaker Fun?
Open the official site and get started in a few clicks.
Rainmaker Fun Overview
Rainmaker.fun is an AI powered trading layer built for sports prediction markets on Polymarket. It does not give picks or tips. It watches live games, reads the odds as they move, and places trades directly through a user's own funded Polymarket wallet. The main focus right now is MLB trading, with newer models covering tennis matches as well.
The tool is built for people who already trade on Polymarket or bet on sports and want to stop sitting through every inning or set to catch the right entry. Manual live trading takes constant attention, and most people lose their edge to slow reactions or bad timing under pressure. Rainmaker fills that gap by running the analysis and the trade execution on its own, so the user does not have to watch the game to act on it.
Setup is simple. A user connects a funded Polymarket wallet, sets a stake size, and turns on the AI agent. From there, models like the Laser series for MLB and Backspin+ for tennis track live game states and decide when to enter or exit a position. The user keeps full control of funds at all times since the wallet stays in their name and withdrawals are open whenever they want.
What sets Rainmaker apart from a normal betting site or a signal group is that it does not just suggest a trade, it places the trade for the user based on preset rules. There is no manual stop loss to remember or exit price to watch for. The system handles entries and exits based on its own models, and the user only decides how much to stake per trade. An optional $RAIN token on Solana can lower trading costs or improve access, but it is not required to use the core trading features in current retail access.
Rainmaker Fun Key features
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Live Game Monitoring
The AI tracks live MLB games and other covered sports and updates win probabilities as plays happen. It places and manages trades on its own, so you do not have to watch the screen or make quick calls under pressure.
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Specialized Sport Models
Laser models focus on MLB and have posted stretches like 18 wins against 6 losses. Backspin+ covers tennis using decades of ATP and WTA data, and auto mode picks the strongest model for the current slate.
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Non-Custodial Wallet Control
You fund your own Polymarket wallet and only give the AI permission to trade from it. You can withdraw your money at any time, since the AI never holds your funds.
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Stake and Risk Controls
You set the size of each trade before turning the system on. After that, the AI sticks to those limits and handles all entries and exits for you.
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Dashboard and Mobile View
The interface shows live scores, win probabilities, open positions, and past results in simple tabs. You can also share performance cards to show your results to others.
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RAIN Token Access
Holding RAIN on Solana can unlock or improve access, cut certain fees, and give priority during busy signals. The token is not required for basic use in current retail flows.
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Referral and Support Links
Verified holders and partners can share links that lower fees for new users for a set period. A Discord channel helps new users with setup and account questions.
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Performance Tracking Records
The platform posts settled signals with entry prices, results, and ROI for each trade. Public totals show win-loss counts and combined ROI across many signals, though open positions stay out of the numbers until they close.
Rainmaker Fun Fees
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Performance based fees Users pay fees when the AI generates winning trades, rather than a fixed subscription.
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Token discount Holding $RAIN can lower trading costs for users.
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Referral discount Referral links can give new users 10 percent off fees for a set period.
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No upfront subscription The core design does not require a large upfront subscription fee.
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Payment processor costs Funding the Polymarket wallet by card or crypto may carry standard payment processor costs.
Rainmaker Fun Supported networks
Solana
Ethereum
Base
BNB Chain
How to use Rainmaker Fun
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Create your account
Go to the Rainmaker.fun site and sign up with your email. Verify the email to activate your account.
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Get access via RAIN or referral
If access rules require it, buy and hold the needed amount of $RAIN on Solana. You can also join the waitlist or use a referral link from an existing user.
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Fund your Polymarket wallet
Connect or fund your own Polymarket wallet with the minimum amount needed. Use a card or crypto to add funds.
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Authorize the AI agent
Give the AI permission to trade from your funded wallet. Set your stake size for each trade before you continue.
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Turn on auto mode
Activate auto mode so the AI starts watching live games and placing trades on your behalf. It will pick entries and exits using its own models.
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Track results and withdraw
Check the dashboard for live scores, positions, and settled trades. Withdraw funds from your Polymarket wallet whenever you want.
Rainmaker Fun Demo video
Rainmaker Fun Screenshots
Rainmaker Fun User Reviews
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Been cookin since months in beta....legends will be raised from rainmaker users.
View on X ↗ -
Solid results again from @rainmakerdotfun.
View on X ↗ -
Yes we finally did it!
View on X ↗
This day has finally arrived.
There's gonna be a really bright journey ahead for @rainmakerdotfun, no doubt about it. ☔️
Rainmaker Fun Review
Pros
- The AI trades live MLB games without needing you to watch the screen.
- You keep your funds in your own Polymarket wallet at all times.
- Withdrawals stay open whenever you want to pull your money out.
- The Laser models publish specific records like 18 wins against 6 losses.
- Tennis models train on decades of ATP and WTA data before going live.
- You set your stake size once and the system applies it to every trade.
- The dashboard shows live scores, win probabilities, and settled results in one place.
- Auto mode picks the strongest model for the current slate on its own.
- Holding RAIN can lower your trading costs and give priority fills.
- Referral links can cut fees for new users for a set period.
- Setup takes just a few steps: fund your wallet, authorize the agent, and activate.
- Public performance records list entry prices, outcomes, and ROI for each signal.
Cons
- Access can depend on token holdings or referral availability during high demand periods.
- All trading carries risk of loss and model performance can vary across sports or market conditions.
- Results depend on Polymarket liquidity and odds quality, factors outside the platform's control.
- Tennis models have a shorter live track record than the core MLB system.
- Users must handle their own wallet security and funding.
- Public materials give little detail about the team behind the project.
- The platform depends on Polymarket staying available and functional, since all trades settle there.
- Fee structure and access tiers can change with model updates, so costs are not fixed.
Our verdict
Rainmaker Fun automates the part of Polymarket trading that burns people out: watching live odds and pulling the trigger fast enough to matter. You connect your own Polymarket wallet, set a stake size, and let its models (Laser for MLB, Backspin+ for tennis) handle entries and exits while your funds stay under your control the whole time. The MLB track record is the strongest part of the pitch, with win rates above 60 percent on some model series, though the tennis models are newer and haven't been tested over as long a stretch. Where it falls short is transparency around the team behind it and the fact that access can hinge on holding the $RAIN token or landing a referral link during busy periods, which adds friction for someone who just wants to try it out. This tool makes sense for people who already trade on Polymarket or bet on sports and want a systematic, hands off way to size up their activity, not for beginners who have never funded a crypto wallet or anyone expecting guaranteed profit.
Is Rainmaker Fun safe & legit?
Rainmaker.fun is a non custodial AI trading layer built to trade sports markets on Polymarket automatically, using models like Laser and Backspin+ to enter and exit live positions from a user's own funded wallet. The team behind it does not publicize individual founder names, but the platform keeps funds under user control at all times, and security scans show no phishing or malware flags. There are no known red flags, though users should still verify the $RAIN token contract on Solana and remember that past model win rates do not guarantee future results.
X account intel @rainmakerdotfun
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Based in United States
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Joined X May 2025 1 year ago
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Username changes 2 renames last on Jun 2, 2025
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Signup source United States App Store
Public profile signals from X. Use as one input alongside other due-diligence.
Wallet blacklist scan checked Sep 2, 2026
- MetaMask Not flagged
- Phantom Not flagged
- ScamSniffer Not flagged
- EtherAddressLookup Not flagged
- Keplr Wallet Not flagged
Domain rainmaker.fun checked against public crypto wallet blacklists.
Rainmaker Fun Updates
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AI Trading Day 8 of the US Open:
Tiafoe was not a favorite in Round 16 of the US Open. Every major sportsbook and prediction market had him as an underdog.
Our AI, Backspin+, saw something different. It predicted before the market that even as a massive underdog, Tiafoe would win.
@FTiafoe won in straight sets.
Rainmaker traded him on Polymarket for our users: +43% on average (fees included) and fully autonomously.
The past 2 days, our AI has garnered 7 wins and 2 losses since Round 32.
$RAIN holders get special access to leverage, priority queue and lower trading fees.
See you for the quarterfinals: https://rainmaker.fun
- 20 replies
- 50 reposts
- 73 likes
- 1.1K views
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Days 6/7 of the US Open:
We trained a brand new AI model for Round 32 and it paid off.
6 wins, 2 losses.
Including our internal tests of live matches, this new model produced 9 winning signals and only 1 that truly lost within 24 hours.
Today we head into the next round with another custom trained model specifically for round 16.
We are the only publicly available AI tennis trader that is fully autonomous.
Our future value is enormous.
More upgrades are coming to the models and app, sign up: http://rainmaker.fun
- 20 replies
- 32 reposts
- 63 likes
- 1.3K views
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Day 5 US Open:
Backspin went 0-4.
The model noticed a regime shift, automatically shut off and began retraining immediately.
These later rounds in the @usopen are a different caliber than the earlier rounds. We had 17W and 2L at the beginning of the US Open.
The retrained model now has a much higher understanding of Grand Slams during R64 and R32.
Backspin+ total wins and losses: 22W 11L. Overall, still profitable if you started the US Open.
Comeback model (for holders only) total wins and losses: 2W 4L +550%.
The new model is deploying today. We expect more profitable results for these later rounds that resemble the early rounds of the US Open's 17 wins and 2 losses.
- 12 replies
- 28 reposts
- 60 likes
- 1.1K views
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Day 4 of the @usopen: 5 wins, 3 losses for Rainmaker AI.
First marginally red day of the tournament. Still more wins than losses, and we publish both.
Backspin+ US Open to date: 22W-7L, 75.8% win rate, +$6,353 net across every user wallet. Same 73% it ran in Cincinnati.
Day 5 is live now. Let's make it rain.
All you need is an email and $20 to start: http://rainmaker.fun/r/usopen
- 20 replies
- 43 reposts
- 78 likes
- 1.1K views
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Day 3 of the US Open:
Our AI pushed through and had 1 win, 1 loss, 1 green trade pending due to the rain delays.
Most trading and matches were paused due to rain delays so the matches are picking up today for Day 4.
Still, we had 30 new retail users and our discord is now just shy of 1,000 rainmakers.
Lots of matches today. Let’s make it rain!- 15 replies
- 42 reposts
- 71 likes
- 1.3K views
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Rainmaker AI bet on the @usopen and made +$6,852 yesterday.
Backspin+ our core AI model autonomously went 8 wins and only 1 loss, +$5,966 net.
Comeback our underdog AI model achieved +469% on just one trade.
98.6% of users were green yesterday.
Sign up to access your AI Agent and trade the rest of the US Open with Rainmaker.
$RAIN holders get leverage, comeback models, fewer fees and higher stake sizes.
http://rainmaker.fun/r/usopen
- 19 replies
- 47 reposts
- 83 likes
- 2K views
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Day 1 of the @usopen rendered Rainmaker users 8 wins and 2 losses.
Average take-profit: +47% ROI, +$757 net per match. +$2,014 across all 132 user wallets after fees, losses counted in full.
Every trade executed from users' own wallets on Polymarket verifiable on chain.
Day 2 is live right now. An email and $20 is all you need to sign up.
50% off fees your first win, $RAIN holders get lower fees, leverage, newer models and higher stakes: http://rainmaker.fun/r/usopen
- 16 replies
- 43 reposts
- 72 likes
- 1.3K views
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@rainmakerdotfun app started bidding yesterday on another #tennis tournament.
Results were impressive with 7 Wins vs 2 Losses.
The journey have been nothing less than incredible so far. The app is modern and effective.
The infrastructure built can now cope with hundreds of requests to order fills.
We are heading to where you are thinking.
Tremendous execution here.
Congrats to everyone onboard already.
#Polymarket #USOpen #PredictionMarket $RAIN
- 12 replies
- 30 reposts
- 51 likes
- 726 views
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AI that trades Tennis polymarkets for you, now 10× more powerful with leverage.
Rainmaker partnered with @dimes_fi to bring leverage to our AI tennis model, Backspin+.
Backspin already scored over 80% WR at the Cincinnati Open across thousands of autonomous fills for our users.
$10 × 3× leverage across every fill → +$255.
Our AI trades. Leverage amplifies it.
Join Discord: http://discord.gg/2GzbAYBxxq
Sign up: http://rainmaker.fun
- 16 replies
- 37 reposts
- 83 likes
- 2.6K views
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The Cincinnati Open printed Rainmaker AI users +$13.5k in total profit with our Tennis Backspin model, now open to the world.
If you’d put $100 on every fill, you’d have walked away with about +$850.
Rainmaker’s homepage is remodeled: real user PnL cards from the Cincy Open’s biggest wins, and a stake calculator so you can see what those same trades would’ve made for you.
US Open’s up next if you want in. $RAIN holders get special access and benefits like leverage on each AI trade.
Only at http://rainmaker.fun.
- 17 replies
- 39 reposts
- 78 likes
- 1.6K views
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The best AI tennis model on @Polymarket has reached $1M in volume in just 20 short days.
We've trained this AI model from scratch on match data going back to 1998.
We are the only AI that buys and sells for you fully autonomously and still manages a 6.2x in net profit with our flagship Tennis AI, Backspin+.
This is just the beginning.
Signup now: http://rainmaker.fun
- 19 replies
- 44 reposts
- 87 likes
- 2.1K views
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Another +267% on Coballi for Rainmaker user @RomeoBoros
Rainmaker AI placed the trade. He just watched.
First trade is $20 at https://rainmaker.fun
Only on Rainmaker.- 3 replies
- 18 reposts
- 50 likes
- 1.8K views
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Another +391% on Tirante for @Katicabogar57.
Rainmaker AI took the trade. She just watched.
Start with $20 at https://rainmaker.fun
Only on Rainmaker.- 5 replies
- 21 reposts
- 47 likes
- 1.6K views
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+358% on Kenin for @NagyKrisz0221.
Rainmaker AI placed the trade.
He just sat back and watched.
Start your first trade today at https://rainmaker.fun for only $20.
Only on Rainmaker.- 13 replies
- 28 reposts
- 61 likes
- 1.4K views
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+391% on Tirante for @RomeoBoros.
Rainmaker AI placed the trade. He just sat back and watched.
Start your first trade today at https://rainmaker.fun for only $20.
Only on Rainmaker.- 18 replies
- 32 reposts
- 68 likes
- 1.6K views
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+455% already with Tennis AI today.
Signup for our sports trading AI: https://rainmaker.fun
$RAIN holders get lower fees, unlimited trading sizes and access to models like this first.
- 17 replies
- 38 reposts
- 67 likes
- 2.2K views
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Rainmaker AI is Top 60 (#54) on the @Polymarket builder leaderboard for volume this month.
Our AI has won 6 out of it's last 8 trades across @MLB and @ATP/@WTA this week.
The future of sports trading is fully automatic: http://rainmaker.fun
- 17 replies
- 37 reposts
- 92 likes
- 1.4K views
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Why are you still trading sports on @polymarket manually?
Our AI autonomously traded 4 wins and 0 losses across 2 different sports today.
2 wins on @MLB for retail users on @Yankees / @CleGuardians
2 wins on @atptour and @WTA for our special access rain holders.
In total: +296% in cumulative gains.
C9's (our AI model) track record for @MLB is 36W and 12L over 64 days of trading with full ledger on our site.
Verified and Powered by @Polymarket: http://rainmaker.fun
- 17 replies
- 49 reposts
- 96 likes
- 2.2K views
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Listen to the world's first AI-generated live radio for @MLB.
Everything you hear is created by AI in real time. The announcers calling the game. The crowd. The crack of the bat. It's built from the real game, play by play, as it happens.
And here's the part that has never existed before: this station only broadcasts games Rainmaker AI has real money on.
Rainmaker is an AI that trades sports on @Polymarket for you. You turn it on, it finds the edge, it places the trade. You don't pick sides and you don't watch odds all night. Your AI does.
Sign up, turn on your AI to trade, and listen to the games it enters. Only at https://rainmaker.fun/- 12 replies
- 44 reposts
- 84 likes
- 1.7K views
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