Sunday’s Second-Round Games: How to Build a Winning +258 March Madness Parlay

• We’re finishing up the second round of the 2025 NCAA Tournament on Sunday, March 23
• At this point, it’s time to find a couple of favorites that we think will smash
• See below for my +258 March Madness Parlay for Sunday

It’s Sunday and we need a winner. We need something that’s going to get us pumped to go into the week and be the best version of ourselves. We also need something that will motivate us to start looking at the Sweet 16 lines. These bets aren’t going to make themselves so we need to get to work. The best way I know how to accomplish what we need to do today is by hitting a parlay. Hitting a parlay today will definitely send us into this week with a pep in our step. It will also keep us locked in for the Sweet 16 round. It’s really the only thing we absolutely have to do today. Lucky for us, I already took care of a little +258 banger. Feels right.

March Madness Parlay for Sunday, March 23

Odds as of March 23 at Fanduel. Download the best March Madness betting apps for the 2025 NCAA Tournament.

March Madness Sunday Parlay Leg #1 – Maryland Is Not a Joke

The round of 32 is all about finding an undervalued team. Only the best teams in the nation are left at this point so it makes sense that one or two could be much better than we originally thought. It’s happened before and it’s going to happen a million more times.

One team that could easily fit this description is the Maryland Terrapins. The Crab Five might actually be legit.

Maryland dominated in its first game of #MarchMadness this year ‼️#B1GMBBall x @TerrapinHoops pic.twitter.com/2aOdrE5z1l

— Big Ten Men’s Basketball (@B1GMBBall) March 21, 2025

Grand Canyon was a popular upset pick in the first round and Maryland just destroyed them. It was tough to watch by the end of that thing (unless you were a Maryland fan). There was a lot to talk about but for me, the biggest takeaway from that game was the fact that five different Terrapins scored double-digit points. One other guy had nine so he was right there too.

That’s going to be a problem for Colorado State. They haven’t seen anything like that this season. On top of that, Maryland’s defense could easily be the best in the country. Colorado State gets by on really good shooting but that might not be in the cards tonight. This game won’t be close.

• The Bet: Maryland -7.5 (-114) – FanDuel

March Madness Sunday Parlay Leg #2 – Michigan State Wins By Double-Digits

Maryland isn’t the only underrated team left in this tournament. Another one is the Michigan State Spartans. Not only are they gifted on the floor, but they’ve also got a legendary coach roaming their sidelines.

So even with the unknowns of a tournament like this, we know one thing for sure, Tom Izzo will have the Spartans ready for Sunday night.

TOMORROW 🕺🕺 pic.twitter.com/xsEDnnlEO4

— Michigan State Men’s Basketball (@MSU_Basketball) March 22, 2025

People don’t realize how good the Bryant Bulldogs were this season. They were big, they were fast and they had multiple guys who could score the rock. Still, Michigan State disposed of them with no problem in the first round. They legit won by 20 in the second half alone.

Tonight, the Spartans will see another team that likes to fly up and down the court in New Mexico. The haters are going to say that the Lobos have beaten multiple tournament teams this season but whatever. They haven’t seen Michigan State. The closest they’ve seen is St. John’s and they got slaughtered that night. We can expect more of the same tonight. This game won’t be close.

• The Bet: Michigan State -7.5 (-110) – FanDuel

As March Madness continues to heat up, Sunday’s second-round games offer a prime opportunity for bettors to build a winning parlay. With a +258 payout, creating a successful parlay requires careful consideration of each matchup and strategic betting choices.

To start, it’s important to analyze the matchups and identify potential upsets or underdog victories. Look for teams that have been performing well in the tournament so far, as well as those with strong offensive and defensive capabilities. Consider factors such as injuries, player performance, and recent form when making your selections.

When building your parlay, it’s crucial to diversify your bets and not rely solely on favorites or underdogs. Mix and match different types of bets, such as moneyline, point spread, and over/under, to increase your chances of hitting on multiple outcomes. This will help mitigate risk and maximize potential payouts.

Additionally, consider hedging your bets by including a mix of safer and riskier picks in your parlay. While it can be tempting to go all-in on longshot underdogs, including a few safer bets can help balance out your parlay and increase your chances of success.

Lastly, be sure to shop around for the best odds and lines before placing your parlay. Different sportsbooks may offer slightly different payouts for the same bet, so taking the time to compare options can make a significant difference in your potential winnings.

In conclusion, building a winning +258 March Madness parlay for Sunday’s second-round games requires careful analysis, strategic betting choices, and a mix of safe and risky picks. By diversifying your bets, considering matchups carefully, and shopping for the best odds, you can increase your chances of hitting on multiple outcomes and cashing in on a successful parlay. Good luck!