GMT% Calculator - winning benchmarks (WBT, Met Regatta, HWR) & Henley qualification benchmark
Enter times below over 2000m to get comparative GMT scores against each benchmark.
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 (x 2000/2112). Select the event your crew would actually enter - eligibility rules differ significantly between events.
Winning times at Henley Women's Regatta across all event categories (Championship, Aspirational, Development, Junior, J16, Para), averaged across 2022-2025. The HWR course is 1500m, so times are adjusted to 2000m equivalent (x 2000/1500). Women's events only. Select the event your crew would actually enter. Times can vary significantly year to year due to river stream conditions. 2021 excluded: course was shortened due to pandemic construction.
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.
HRR qual. Henley Royal Regatta 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.
HWR Henley Women's Regatta - winning benchmark, women's events only. Winning times across all HWR event categories (Championship, Aspirational, Development, Junior, J16, Para) averaged across 2022-2025, adjusted from 1500m to 2000m equivalent. Select the event your crew would enter — like HRR, different events have different eligibility. Not available for men's or open boat classes.
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.
Full regatta analysis: GMT% heatmap across every event, top performers leaderboard, and club comparison.
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