Type “Underdog deposit bonus code” and there are really two different questions hiding in there. One is about the match tied to a first deposit — the thing SDS, GRINDERS, HANDLE, and VIBONUS all unlock. The other is whether that match comes back on a second or third deposit, the way a sportsbook reload bonus might. Underdog only has an answer for the first one.

One Deposit, One Match — Not a Recurring Code

Underdog’s published terms scope the 50% deposit match to a single qualifying first deposit. There isn’t a second code that fires again once an account has already claimed its match, and there isn’t a rotating reload promotion that stacks on top of it the way some sportsbooks run weekly redeposit offers. Whatever code gets typed — SDS or GRINDERS or one of the others — it points at the same one-time event.

“Deposit bonus” and “reload bonus” aren’t the same thing here. A reload bonus implies a code that keeps working on later deposits. Underdog’s deposit bonus is the opposite — it works exactly once, on the first deposit that clears the $10 minimum.

What the Match Actually Pays, by Deposit Size

Because the match is 50% rather than a flat number, what it pays depends entirely on how much goes in. Small deposits get small matches; the headline $1,000 figure only shows up once a deposit reaches $2,000.

$10 deposit — $5 match

$100 deposit — $50 match

$600 deposit — $300 match

$2,000+ deposit — $1,000 match (capped)

The bonus funds then need a 1x playthrough on the deposit plus the bonus amount — combined, not separately — cleared within 14 days of the bonus landing, or the unplayed portion is forfeited.

What Existing Accounts Get Instead

An account that already used its one deposit-match code isn’t automatically shut out of every promotion Underdog runs. Keep Your Million has been open to most existing accounts as a free-to-enter game, no deposit required: start with a virtual $1 million, work through 20 higher-or-lower player-projection questions, and whatever balance survives converts to real bonus funds. It’s a genuinely different mechanic — not deposit-triggered, not scaled to anything put in — so it answers a different search than “deposit bonus code” even though it shows up bundled with the same promo codes in some places.

Where None of This Applies

The deposit-match promotion has not been offered in Maryland, Michigan, New Jersey, New York, Ohio, or Pennsylvania, which sits on top of the states where Underdog itself doesn’t operate at all — Connecticut, Hawaii, Idaho, Iowa, Louisiana, Maine, Montana, Nevada, and Washington. Age minimums stack on further: 18+ in most states, 19+ in Alabama and Nebraska, 21+ in Arizona, Massachusetts, and Virginia. Treat the match as promotional value on an entry fee, not income — confirm live terms in-app before depositing.