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    Heather Kirby

    Heather Kirby

    US United States

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    Performance Profile

    Athlete Performance Hub

    Participation and performance history of Heather Kirby.

    Results shown here represent performances from events registered on Freedive Central and are not official.

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    Career Statistics

    Competitions 2
    Disciplines 3
    Podiums 🏆 6
    Records ⚡ 0
    Medal Standings
    Discipline 🥇 🥈 🥉 Total
    CNF 0 0 1 1
    CWT-BF 0 1 1 2
    FIM 1 0 1 2
    Overall 1 0 0 1
    Total 2 1 3 6

    Clean Dive Rate

    100% White Card
    100% White Card Rate
    Ultra-consistent Diver 🎯
    White
    6
    Yellow
    0
    Red
    0

    Showcase Card Athlete Showcase Card: OVR: Overall Rating (50-99) based on the average points of your top 3 personal bests. ALL/DEP/POL: Archetype class (All-Rounder, Depth, or Pool Specialist). Disciplines: Your absolute best personal performances (PBs). CDR: Clean Dive Rate (% of White Cards/clean dives).

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    US Athletes from United States
    Country benchmark

    Heather Kirby vs. United States

    Personal bests compared with the best eligible marks registered on Freedive Central.

    Women
    0 Country-leading marks 3 Disciplines
    Constant No Fins Personal best
    Athlete PB 40 m
    United States best
    Details
    Country best archived in 2026 by Lauren Matevish at AIDA Xibalba 2026
    77 m
    Progress to country best 51.9%
    World benchmark

    PB vs. World Record

    Personal bests measured against the current world-record benchmarks.

    Women
    3 Disciplines World reference
    Constant No Fins Competitor
    Athlete PB 40 m
    World record 86 m
    46 m to the world record 46.5%
    Constant Weight Bifins Competitor
    Athlete PB 55 m
    World record 112 m
    57 m to the world record 49.1%
    Free Immersion Advanced
    Athlete PB 64 m
    World record 107 m
    43 m to the world record 59.8%
    Performance overview

    Performance Radar

    Personal bests compared with national benchmarks and the world benchmark for each discipline.

    Female / United States
    Performance comparison data is available in the table below.

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    Heather Kirby (PB) United States Best World benchmark (100%)

    Tap or hover over a point for exact values.

    Discipline breakdown

    Exact performances and the remaining gap to each benchmark.

    World record National record
    Performance comparison by discipline
    DisciplinePersonal bestNational bestWorld benchmark% WorldNational gapWorld gap
    CNFConstant No Fins 40 m 77 m 86 m 46.5% 37 m 46 m
    CWT-BFConstant Weight Bifins 55 m 100 m 112 m 49.1% 45 m 57 m
    FIMFree Immersion 64 m 106 m 107 m 59.8% 42 m 43 m

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    Disciplines 3 of 3 active
    Depth Disciplines
    3 active disciplines

    Depth Disciplines

    Depth performances across constant weight, free immersion and sled disciplines.

    CWT-BF Constant Weight Bifins US View United States CWT-BF Results →

    Performance evolution

    Explore CWT-BF history

    PB
    —
    Clean dives
    —
    Performances
    2
    Career gain
    —
    White card Yellow card Red card PB Record United States record 100 m
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    Career navigator Year changes Full career
    — — —

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    Showing 2 of 2 results

    FIM Free Immersion US View United States FIM Results →

    Performance evolution

    Explore FIM history

    PB
    —
    Clean dives
    —
    Performances
    2
    Career gain
    —
    White card Yellow card Red card PB Record United States record 106 m
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    Career navigator Year changes Full career
    — — —

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    Showing 2 of 2 results

    CNF Constant No Fins US View United States CNF Results →

    Performance evolution

    Explore CNF history

    PB
    —
    Clean dives
    —
    Performances
    2
    Career gain
    —
    White card Yellow card Red card PB Record United States record 77 m
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    Showing 2 of 2 results