At a fintech hackathon in 2022, I watched a team of five spend the first four hours arguing about whether to use React or Vue. By the time they'd settled it, a guy two tables over—working completely alone, headphones on, energy drink count already at three—had a working prototype deployed. He didn't win, but he shipped. They didn't.

I've been to more of these events than I can count, and that scene has replayed itself in some form dozens of times. The solo-versus-team question gets treated like a personality quiz, but it's really a strategic decision. And most people get it wrong because they pick the format that feels safe instead of the one that fits the event.

The Team Trap Nobody Warns You About

Here's the counterintuitive part: bigger teams often ship less, not more. Coordination is a tax, and it compounds. With two people you have one communication channel. With four people you have six. With five, ten. Every one of those channels is a place for misalignment, duplicated work, and the dreaded "wait, I thought you were doing that part."

I once ran an informal tally across a weekend event with about 40 teams. The groups of two and three finished with demo-ready projects roughly 70% of the time. The groups of five or more? Closer to 40%. The big teams had more talent in the room and less to show for it. They spent their advantage on meetings.

This doesn't mean teams are bad. It means teams need a reason to exist beyond "more hands." A team works when the project genuinely splits into parallel tracks—someone on the API, someone on the frontend, someone on the pitch and the slides. If your idea can't be cleanly divided, you've just assembled a committee.

When Solo Actually Wins

Going solo gets dismissed as the lonely option, but I'd argue it's the most underrated way to hack. When you're alone, there's zero coordination overhead. You hold the entire architecture in your head. You pivot instantly because there's no one to convince. Every decision takes seconds, not a Slack thread.

Solo is the right call when:

  • You already have a sharp, narrow idea. If you know exactly what you're building, a team only slows the build down.
  • The event is short. For a 24-hour sprint, the time you'd spend onboarding teammates is time you don't have.
  • You're there to learn a specific skill. You can't deeply learn Rust if a teammate keeps swooping in to do the hard parts for you.

The trade-off is real, though. Solo means no one catches your blind spots, no one keeps you awake at hour 18, and you're pitching alone in front of judges. I've seen brilliant solo builds lose to mediocre team projects purely because the team had someone who could sell. Judging is human, and a confident two-minute demo beats a great-but-mumbled one.

The Format Hides Inside the Event

The mistake I see most often is choosing solo or team before looking at what the event actually rewards. Some hackathons are sponsor-driven, where the prize goes to whoever best uses a specific tool—those reward focused solo or pair work. Others are pitch competitions in disguise, where polish and storytelling matter more than code, and a team with a designer and a presenter will clean up.

Read the judging criteria first. If "technical complexity" is weighted heavily, lean toward small, fast-moving builds. If "business viability" and "presentation" carry the points, you want people who can do the non-code work well. The format should serve the rubric, not your comfort zone.

This is also where doing your homework before you show up pays off. I always scan upcoming events to see the theme, the sponsors, and the judging setup before deciding how to approach them. If you're hunting for your next one, you can find events on Droppa and actually compare formats side by side instead of signing up blind.

What I'd Actually Tell You to Do

If you're new, do your first hackathon solo or in a pair. You'll learn the rhythm of the thing—the time pressure, the scope-cutting, the demo crunch—without hiding inside a group where someone else carries the weight. You'll find out fast what you're actually good at.

Once you know your strengths, build a team deliberately: one or two people whose skills complement yours, not five friends who all write backend code. A tight team of two with a clear split will out-ship a loose team of five almost every time.

And don't lock yourself in. Some of my best hackathon experiences started solo and turned into a duo when I met someone at hour six with the exact skill I was missing. The format isn't a vow. It's a tool. Pick the one that fits the build in front of you, browse what's coming up on Droppa, and go ship something.