Head to head
Calvin Nielson vs Zach Ridall
Two careers, 69 shared rounds, one running count. Everything below comes from the official results the two of them posted in the same rounds of the same competitions.
Calvin Nielson (United States) and Zach Ridall (United States) have met in 69 rounds across 7 competitions since 2019. Counting every round where both finished with a result, Zach Ridall leads Calvin Nielson: 36 finishes in front to 33.
On personal bests the split is just as plain: across 14 shared events, Zach Ridall holds the faster single in 10, Calvin Nielson in 4.
Personal bests, side by side
faster single in bold| Event | Calvin Nielson single | average | Zach Ridall single | average |
|---|---|---|---|---|
| 3×3 | 7.41 | 9.37 | 5.97 | 7.69 |
| 2×2 | 1.02 | 2.67 | 1.34 | 2.71 |
| 4×4 | 34.64 | 43.51 | 30.36 | 34.06 |
| 5×5 | 1:11.59 | 1:24.03 | 59.42 | 1:07.15 |
| 6×6 | 2:28.88 | 2:37.29 | 1:49.97 | 1:58.45 |
| 7×7 | 3:58.09 | 4:14.47 | 3:23.79 | 3:31.59 |
| 3×3 blindfolded | 1:23.60 | 3:12.71 | 1:13.35 | 3:55.49 |
| 3×3 Fewest Moves | 20 moves | 24.33 | 25 moves | 34.00 |
| 3×3 one-handed | 12.92 | 17.81 | 14.84 | 18.76 |
| Clock | 4.75 | 6.40 | 3.08 | 4.67 |
| Megaminx | 1:02.11 | 1:09.66 | 1:13.06 | 1:25.73 |
| Pyraminx | 2.97 | 5.38 | 2.23 | 5.36 |
| Skewb | 2.54 | 4.71 | 2.13 | 3.58 |
| Square-1 | 4.66 | 6.58 | 4.53 | 7.12 |
Year by year
every meeting, 69 rounds in allRecent meetings
newest first · averages where the round ranked on one, singles otherwise| Year | Competition | Event | Round | Calvin Nielson | Zach Ridall | ahead |
|---|---|---|---|---|---|---|
| 2026 | Rubik's WCA North American Championship 2026 | 2×2 | First round | 3.75 | 4.16 | Calvin Nielson |
| 2026 | Rubik's WCA North American Championship 2026 | 3×3 | First round | 12.63 | 10.34 | Zach Ridall |
| 2026 | Rubik's WCA North American Championship 2026 | 4×4 | First round | 46.86 | 34.75 | Zach Ridall |
| 2026 | Rubik's WCA North American Championship 2026 | Skewb | First round | 6.23 | 4.91 | Zach Ridall |
| 2026 | Rubik's WCA North American Championship 2026 | Square-1 | First round | 6.85 | 9.55 | Calvin Nielson |
| 2024 | Rubik's WCA North American Championship 2024 | 2×2 | Second round | 3.78 | 3.29 | Zach Ridall |
| 2024 | Rubik's WCA North American Championship 2024 | 2×2 | First round | 3.54 | 3.37 | Zach Ridall |
| 2024 | Rubik's WCA North American Championship 2024 | 3×3 | Second round | 12.20 | 10.26 | Zach Ridall |
| 2024 | Rubik's WCA North American Championship 2024 | 3×3 | First round | 10.95 | 9.69 | Zach Ridall |
| 2024 | Rubik's WCA North American Championship 2024 | 3×3 one-handed | First round | 19.84 | 21.40 | Calvin Nielson |
| 2024 | Rubik's WCA North American Championship 2024 | 4×4 | First round | 48.31 | 40.47 | Zach Ridall |
| 2024 | Rubik's WCA North American Championship 2024 | 5×5 | First round | 1:27.92 | 1:19.44 | Zach Ridall |
| 2024 | Rubik's WCA North American Championship 2024 | 6×6 | First round | 2:53.38 | 2:47.22 | Zach Ridall |
| 2024 | Rubik's WCA North American Championship 2024 | Clock | First round | 8.50 | 5.64 | Zach Ridall |
Full careers: Calvin Nielson · Zach Ridall. A meeting is a round of one event at one competition where both finished with a counted result. Who finished ahead follows official placing in the round: rounds played to an average are won on the average, best-of rounds on the single.