GMT% Calculator — winning benchmarks (WBT, Met Regatta) & Henley qualification benchmark
Enter times below over 2000m to get comparative GMT scores against each benchmark.
Note: race conditions can vary significantly — this tool is intended to compare and benchmark different crews against each other based on times recorded during the same session.
Official World Best Times over 2000m as recognised by World Rowing.
Championship A-final winning times at the Metropolitan Regatta at Dorney Lake, averaged across 2021, 2022, 2023 and 2025. Saturday and Sunday events both included. 2024 not available as a published summary.
Unlike the WBT and Met benchmarks which represent winning times, these are the fastest non-qualifying times at Henley Royal Regatta — i.e. the slowest time that failed to make it into the draw. A score at or above 100% suggests a crew would likely have qualified. Times averaged across available years (2021–2025) and adjusted from Henley course (2112m) to 2000m equivalent (× 2000/2112). Select the event your crew would actually enter — eligibility rules differ significantly between events.
GMT stands for Gold Medal Time — a percentage score expressing how fast a crew's time is relative to a known benchmark. The higher the percentage, the closer the crew is to that standard.
The formula is: GMT% = benchmark time ÷ your time × 100. Because rowing is a timed sport where faster is better, your time will generally be slower than the benchmark, so scores are typically below 100%.
For example, a men's eight rowing 5:45 against a WBT of 5:18.68 scores 92.7% — meaning they rowed at 92.7% of the world's best pace.
WBT World Best Time — winning benchmark. The fastest ever recorded time for each boat class over 2000m, officially recognised by World Rowing. The gold standard. Competitive domestic club crews typically score 72–85%.
Met avg Metropolitan Regatta average — winning benchmark. The average championship A-final winning time at the Metropolitan Regatta at Dorney Lake, across 2021–2025. A score above 100% means you'd have won on average. Useful for gauging competitiveness within the UK club scene.
Henley qual. Henley qualification benchmark — not a winning benchmark. This is the fastest time that failed to qualify at Henley Royal Regatta qualifying races, averaged across available years and adjusted to 2000m. A score at or above 100% means you'd likely have made it into the draw — not that you'd win. Because eligibility rules differ significantly between events, make sure to select the specific Henley event your crew would enter.
The Henley course is 1 mile and 550 yards — approximately 2112m, which is 5.6% longer than the standard 2000m international distance. To convert a Henley time to its 2000m equivalent, the time is multiplied by 2000 ÷ 2112 = 0.9470. This assumes a crew can sustain the same average speed over both 2000m and 2112m, which is a reasonable approximation for comparison purposes.