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Prof. Oak's Research 98 Reverse Holo

Fire Red & Leaf Green · #98

The Reverse Holo printing — a separate card from the standard version.

£5.63

PriceCharting · converted to GBP

0.0%1D

0.0%7D

+40.4%30D

Live deals

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Looking for confirmed deals on this card…

Find this on eBay UK

Raw · ungraded£5.63 PSA 10£195 PSA 9£16.30 CGC 10£55.01 BGS 10£254

UK sellers only. Opens eBay in a new tab.

HoloHawk earns a commission on eBay purchases through this link. It never changes the price you pay.

Prices by grade

PSA 10 = 34.7× raw

Today's figures for every tier.

Raw · ungraded£5.63

PSA 10£195

PSA 9£16.30

CGC 10£55.01

BGS 10£254

A PSA 10 sells for 34.7× the raw card — a gap of £190. Grading fees and the risk of a 9 come out of that.

At a glance

30-day high£5.63

30-day low£4.01

Tracked high£5.63

Days tracked192

Price history

116 readings · 192d

7D30DAll

HoloHawk awaiting data£5.630.0%PriceChartingPulseTCG awaiting data

16 Oct16 Oct16 Oct23 Oct23 Oct23 Oct

HoloHawk awaiting data£5.63+40.4%PriceChartingPulseTCG awaiting data

23 Sept 2026PriceCharting£4.0124 Sept 2026PriceCharting£4.0125 Sept 2026PriceCharting£4.0126 Sept 2026PriceCharting£4.0127 Sept 2026PriceCharting£4.0128 Sept 2026PriceCharting£4.0129 Sept 2026PriceCharting£4.0130 Sept 2026PriceCharting£4.011 Oct 2026PriceCharting£4.012 Oct 2026PriceCharting£4.013 Oct 2026PriceCharting£4.014 Oct 2026PriceCharting£4.015 Oct 2026PriceCharting£4.016 Oct 2026PriceCharting£4.017 Oct 2026PriceCharting£4.018 Oct 2026PriceCharting£4.019 Oct 2026PriceCharting£4.0110 Oct 2026PriceCharting£4.0111 Oct 2026PriceCharting£4.0112 Oct 2026PriceCharting£4.0113 Oct 2026PriceCharting£4.0114 Oct 2026PriceCharting£4.0115 Oct 2026PriceCharting£5.6316 Oct 2026PriceCharting£5.6317 Oct 2026PriceCharting£5.6318 Oct 2026PriceCharting£5.6319 Oct 2026PriceCharting£5.6320 Oct 2026PriceCharting£5.6321 Oct 2026PriceCharting£5.6322 Oct 2026PriceCharting£5.6323 Oct 2026PriceCharting£5.63

23 Sept1 Oct1 Oct15 Oct15 Oct23 Oct

HoloHawk awaiting data£5.63+48.5%PriceChartingPulseTCG awaiting data

14 Apr 2026PriceCharting£3.7915 Apr 2026PriceCharting£3.7916 Apr 2026PriceCharting£3.7917 Apr 2026PriceCharting£3.7918 Apr 2026PriceCharting£3.7919 Apr 2026PriceCharting£3.7920 Apr 2026PriceCharting£3.7921 Apr 2026PriceCharting£3.7922 Apr 2026PriceCharting£3.7923 Apr 2026PriceCharting£3.7924 Apr 2026PriceCharting£3.7925 Apr 2026PriceCharting£3.7926 Apr 2026PriceCharting£3.7927 Apr 2026PriceCharting£3.7928 Apr 2026PriceCharting£3.7929 Apr 2026PriceCharting£3.7930 Apr 2026PriceCharting£3.791 May 2026PriceCharting£3.792 May 2026PriceCharting£3.793 May 2026PriceCharting£3.794 May 2026PriceCharting£3.795 May 2026PriceCharting£3.796 May 2026PriceCharting£3.797 May 2026PriceCharting£3.758 May 2026PriceCharting£3.759 May 2026PriceCharting£3.7510 May 2026PriceCharting£3.7511 May 2026PriceCharting£3.7512 May 2026PriceCharting£3.7513 May 2026PriceCharting£3.7514 May 2026PriceCharting£3.7515 May 2026PriceCharting£3.7516 May 2026PriceCharting£3.7517 May 2026PriceCharting£3.7518 May 2026PriceCharting£3.7519 May 2026PriceCharting£3.7520 May 2026PriceCharting£3.7521 May 2026PriceCharting£3.7522 May 2026PriceCharting£3.7523 May 2026PriceCharting£3.7524 May 2026PriceCharting£3.7525 May 2026PriceCharting£3.7526 May 2026PriceCharting£3.7527 May 2026PriceCharting£3.7528 May 2026PriceCharting£3.7529 May 2026PriceCharting£3.7530 May 2026PriceCharting£3.7531 May 2026PriceCharting£3.751 Jun 2026PriceCharting£3.752 Jun 2026PriceCharting£3.753 Jun 2026PriceCharting£3.754 Jun 2026PriceCharting£3.755 Jun 2026PriceCharting£3.756 Jun 2026PriceCharting£3.757 Jun 2026PriceCharting£3.758 Jun 2026PriceCharting£3.759 Jun 2026PriceCharting£3.7510 Jun 2026PriceCharting£3.7511 Jun 2026PriceCharting£3.7512 Jun 2026PriceCharting£3.7513 Jun 2026PriceCharting£3.7514 Jun 2026PriceCharting£3.7515 Jun 2026PriceCharting£3.7516 Jun 2026PriceCharting£3.7517 Jun 2026PriceCharting£3.7518 Jun 2026PriceCharting£3.7519 Jun 2026PriceCharting£3.7520 Jun 2026PriceCharting£3.7521 Jun 2026PriceCharting£3.7522 Jun 2026PriceCharting£3.7523 Jun 2026PriceCharting£3.7524 Jun 2026PriceCharting£3.7525 Jun 2026PriceCharting£3.7526 Jun 2026PriceCharting£3.7627 Jun 2026PriceCharting£3.7628 Jun 2026PriceCharting£3.7629 Jun 2026PriceCharting£3.7630 Jun 2026PriceCharting£3.761 Jul 2026PriceCharting£3.762 Jul 2026PriceCharting£3.763 Jul 2026PriceCharting£3.764 Jul 2026PriceCharting£3.765 Jul 2026PriceCharting£3.766 Jul 2026PriceCharting£3.737 Jul 2026PriceCharting£3.738 Jul 2026PriceCharting£3.739 Jul 2026PriceCharting£3.7310 Jul 2026PriceCharting£3.7311 Jul 2026PriceCharting£3.7312 Jul 2026PriceCharting£3.7313 Jul 2026PriceCharting£3.7314 Jul 2026PriceCharting£3.7315 Jul 2026PriceCharting£3.4716 Jul 2026PriceCharting£3.4717 Jul 2026PriceCharting£3.4718 Jul 2026PriceCharting£3.4719 Jul 2026PriceCharting£3.4720 Jul 2026PriceCharting£3.4721 Jul 2026PriceCharting£3.4722 Jul 2026PriceCharting£3.4723 Jul 2026PriceCharting£3.4724 Jul 2026PriceCharting£3.4725 Jul 2026PriceCharting£3.4726 Jul 2026PriceCharting£3.4727 Jul 2026PriceCharting£3.4728 Jul 2026PriceCharting£3.4729 Jul 2026PriceCharting£3.4730 Jul 2026PriceCharting£3.4731 Jul 2026PriceCharting£3.471 Aug 2026PriceCharting£3.472 Aug 2026PriceCharting£3.473 Aug 2026PriceCharting£3.714 Aug 2026PriceCharting£3.715 Aug 2026PriceCharting£3.716 Aug 2026PriceCharting£3.717 Aug 2026PriceCharting£3.718 Aug 2026PriceCharting£3.719 Aug 2026PriceCharting£3.7110 Aug 2026PriceCharting£3.7111 Aug 2026PriceCharting£3.7112 Aug 2026PriceCharting£3.7113 Aug 2026PriceCharting£3.7114 Aug 2026PriceCharting£3.4515 Aug 2026PriceCharting£3.4516 Aug 2026PriceCharting£3.4517 Aug 2026PriceCharting£3.4518 Aug 2026PriceCharting£3.4519 Aug 2026PriceCharting£3.4520 Aug 2026PriceCharting£3.4521 Aug 2026PriceCharting£3.4522 Aug 2026PriceCharting£3.4523 Aug 2026PriceCharting£3.4524 Aug 2026PriceCharting£3.4525 Aug 2026PriceCharting£3.4526 Aug 2026PriceCharting£3.4527 Aug 2026PriceCharting£3.4528 Aug 2026PriceCharting£3.4529 Aug 2026PriceCharting£3.4530 Aug 2026PriceCharting£3.4531 Aug 2026PriceCharting£3.451 Sept 2026PriceCharting£3.732 Sept 2026PriceCharting£3.733 Sept 2026PriceCharting£3.734 Sept 2026PriceCharting£3.735 Sept 2026PriceCharting£3.736 Sept 2026PriceCharting£3.737 Sept 2026PriceCharting£3.738 Sept 2026PriceCharting£3.739 Sept 2026PriceCharting£3.7310 Sept 2026PriceCharting£3.7311 Sept 2026PriceCharting£3.7412 Sept 2026PriceCharting£3.7413 Sept 2026PriceCharting£3.7414 Sept 2026PriceCharting£3.7415 Sept 2026PriceCharting£3.7416 Sept 2026PriceCharting£3.7417 Sept 2026PriceCharting£3.7418 Sept 2026PriceCharting£3.7419 Sept 2026PriceCharting£3.7420 Sept 2026PriceCharting£3.7421 Sept 2026PriceCharting£3.7422 Sept 2026PriceCharting£4.0123 Sept 2026PriceCharting£4.0124 Sept 2026PriceCharting£4.0125 Sept 2026PriceCharting£4.0126 Sept 2026PriceCharting£4.0127 Sept 2026PriceCharting£4.0128 Sept 2026PriceCharting£4.0129 Sept 2026PriceCharting£4.0130 Sept 2026PriceCharting£4.011 Oct 2026PriceCharting£4.012 Oct 2026PriceCharting£4.013 Oct 2026PriceCharting£4.014 Oct 2026PriceCharting£4.015 Oct 2026PriceCharting£4.016 Oct 2026PriceCharting£4.017 Oct 2026PriceCharting£4.018 Oct 2026PriceCharting£4.019 Oct 2026PriceCharting£4.0110 Oct 2026PriceCharting£4.0111 Oct 2026PriceCharting£4.0112 Oct 2026PriceCharting£4.0113 Oct 2026PriceCharting£4.0114 Oct 2026PriceCharting£4.0115 Oct 2026PriceCharting£5.6316 Oct 2026PriceCharting£5.6317 Oct 2026PriceCharting£5.6318 Oct 2026PriceCharting£5.6319 Oct 2026PriceCharting£5.6320 Oct 2026PriceCharting£5.6321 Oct 2026PriceCharting£5.6322 Oct 2026PriceCharting£5.6323 Oct 2026PriceCharting£5.63

14 Apr8 May4 Jun27 Jun20 Jul23 Oct

Three independent readings on one scale. A reading is recorded only when a price changes, so a flat stretch means it held. Hover or tap any day. HoloHawk and PulseTCG have no readings for this card yet.

Graded price history

PSA 10 · £195

£195+213.8%PSA 10£16.300.0%PSA 9£55.01-2.2%CGC 10£254+213.9%BGS 10

14 Apr 2026PSA 10£62.2715 Apr 2026PSA 10£62.2716 Apr 2026PSA 10£62.2717 Apr 2026PSA 10£62.2718 Apr 2026PSA 10£62.2719 Apr 2026PSA 10£62.2720 Apr 2026PSA 10£62.2721 Apr 2026PSA 10£62.2722 Apr 2026PSA 10£62.2723 Apr 2026PSA 10£62.2724 Apr 2026PSA 10£62.2725 Apr 2026PSA 10£62.2726 Apr 2026PSA 10£62.2727 Apr 2026PSA 10£62.2728 Apr 2026PSA 10£62.2729 Apr 2026PSA 10£62.2730 Apr 2026PSA 10£62.271 May 2026PSA 10£62.272 May 2026PSA 10£62.273 May 2026PSA 10£62.274 May 2026PSA 10£62.275 May 2026PSA 10£62.276 May 2026PSA 10£62.277 May 2026PSA 10£62.278 May 2026PSA 10£62.279 May 2026PSA 10£62.2710 May 2026PSA 10£62.2711 May 2026PSA 10£62.2712 May 2026PSA 10£62.2713 May 2026PSA 10£62.2714 May 2026PSA 10£62.2715 May 2026PSA 10£62.2716 May 2026PSA 10£62.2717 May 2026PSA 10£62.2718 May 2026PSA 10£62.2719 May 2026PSA 10£62.2720 May 2026PSA 10£62.2721 May 2026PSA 10£62.2722 May 2026PSA 10£62.2723 May 2026PSA 10£62.2724 May 2026PSA 10£62.2725 May 2026PSA 10£62.2726 May 2026PSA 10£62.2727 May 2026PSA 10£62.2728 May 2026PSA 10£62.2729 May 2026PSA 10£62.2730 May 2026PSA 10£62.2731 May 2026PSA 10£62.271 Jun 2026PSA 10£62.272 Jun 2026PSA 10£62.273 Jun 2026PSA 10£62.274 Jun 2026PSA 10£62.275 Jun 2026PSA 10£62.276 Jun 2026PSA 10£62.277 Jun 2026PSA 10£62.278 Jun 2026PSA 10£62.279 Jun 2026PSA 10£62.2710 Jun 2026PSA 10£62.2711 Jun 2026PSA 10£62.2712 Jun 2026PSA 10£62.2713 Jun 2026PSA 10£62.2714 Jun 2026PSA 10£62.2715 Jun 2026PSA 10£62.2716 Jun 2026PSA 10£62.2717 Jun 2026PSA 10£62.2718 Jun 2026PSA 10£62.2719 Jun 2026PSA 10£62.2720 Jun 2026PSA 10£62.2721 Jun 2026PSA 10£62.2722 Jun 2026PSA 10£62.2723 Jun 2026PSA 10£62.2724 Jun 2026PSA 10£62.2725 Jun 2026PSA 10£62.2726 Jun 2026PSA 10£62.2727 Jun 2026PSA 10£62.2728 Jun 2026PSA 10£62.2729 Jun 2026PSA 10£62.2730 Jun 2026PSA 10£62.271 Jul 2026PSA 10£62.272 Jul 2026PSA 10£62.273 Jul 2026PSA 10£62.274 Jul 2026PSA 10£62.275 Jul 2026PSA 10£62.276 Jul 2026PSA 10£62.277 Jul 2026PSA 10£62.278 Jul 2026PSA 10£62.279 Jul 2026PSA 10£62.2710 Jul 2026PSA 10£62.2711 Jul 2026PSA 10£62.2712 Jul 2026PSA 10£62.2713 Jul 2026PSA 10£62.2714 Jul 2026PSA 10£62.2715 Jul 2026PSA 10£62.2716 Jul 2026PSA 10£62.2717 Jul 2026PSA 10£62.2718 Jul 2026PSA 10£62.2719 Jul 2026PSA 10£62.2720 Jul 2026PSA 10£62.2721 Jul 2026PSA 10£62.2722 Jul 2026PSA 10£62.2723 Jul 2026PSA 10£62.2724 Jul 2026PSA 10£62.2725 Jul 2026PSA 10£62.2726 Jul 2026PSA 10£62.2727 Jul 2026PSA 10£62.2728 Jul 2026PSA 10£62.2729 Jul 2026PSA 10£62.2730 Jul 2026PSA 10£62.2731 Jul 2026PSA 10£62.271 Aug 2026PSA 10£62.272 Aug 2026PSA 10£62.273 Aug 2026PSA 10£62.274 Aug 2026PSA 10£62.27PSA 9£16.30CGC 10£56.26BGS 10£81.035 Aug 2026PSA 10£62.27PSA 9£16.30CGC 10£56.26BGS 10£81.036 Aug 2026PSA 10£62.27PSA 9£16.30CGC 10£56.26BGS 10£81.037 Aug 2026PSA 10£62.27PSA 9£16.30CGC 10£56.26BGS 10£81.038 Aug 2026PSA 10£62.27PSA 9£16.30CGC 10£56.26BGS 10£81.039 Aug 2026PSA 10£62.27PSA 9£16.30CGC 10£56.26BGS 10£81.0310 Aug 2026PSA 10£62.27PSA 9£16.30CGC 10£56.26BGS 10£81.0311 Aug 2026PSA 10£62.27PSA 9£16.30CGC 10£56.26BGS 10£81.0312 Aug 2026PSA 10£62.27PSA 9£16.30CGC 10£56.26BGS 10£81.0313 Aug 2026PSA 10£62.27PSA 9£16.30CGC 10£56.26BGS 10£81.0314 Aug 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26815 Aug 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26816 Aug 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26817 Aug 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26818 Aug 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26819 Aug 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26820 Aug 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26821 Aug 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26822 Aug 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26823 Aug 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26824 Aug 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26825 Aug 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26826 Aug 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26827 Aug 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26828 Aug 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26829 Aug 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26830 Aug 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26831 Aug 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£2681 Sept 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£2682 Sept 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£2683 Sept 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£2684 Sept 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£2685 Sept 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£2686 Sept 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£2687 Sept 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£2688 Sept 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£2689 Sept 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26810 Sept 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26811 Sept 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26812 Sept 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26813 Sept 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26814 Sept 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26815 Sept 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26816 Sept 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26817 Sept 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26818 Sept 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26819 Sept 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26820 Sept 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26821 Sept 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26822 Sept 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26823 Sept 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26824 Sept 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26825 Sept 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26826 Sept 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26827 Sept 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26828 Sept 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26829 Sept 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£26830 Sept 2026PSA 10£206PSA 9£16.30CGC 10£56.26BGS 10£2681 Oct 2026PSA 10£200PSA 9£16.30CGC 10£54.40BGS 10£2602 Oct 2026PSA 10£200PSA 9£16.30CGC 10£54.40BGS 10£2603 Oct 2026PSA 10£200PSA 9£16.30CGC 10£54.40BGS 10£2604 Oct 2026PSA 10£200PSA 9£16.30CGC 10£54.40BGS 10£2605 Oct 2026PSA 10£200PSA 9£16.30CGC 10£54.40BGS 10£2606 Oct 2026PSA 10£200PSA 9£16.30CGC 10£54.40BGS 10£2607 Oct 2026PSA 10£200PSA 9£16.30CGC 10£54.40BGS 10£2608 Oct 2026PSA 10£200PSA 9£16.30CGC 10£54.40BGS 10£2609 Oct 2026PSA 10£200PSA 9£16.30CGC 10£54.40BGS 10£26010 Oct 2026PSA 10£200PSA 9£16.30CGC 10£54.40BGS 10£26011 Oct 2026PSA 10£200PSA 9£16.30CGC 10£54.40BGS 10£26012 Oct 2026PSA 10£200PSA 9£16.30CGC 10£54.40BGS 10£26013 Oct 2026PSA 10£200PSA 9£16.30CGC 10£54.40BGS 10£26014 Oct 2026PSA 10£200PSA 9£16.30CGC 10£54.40BGS 10£26015 Oct 2026PSA 10£197PSA 9£16.30CGC 10£55.01BGS 10£25616 Oct 2026PSA 10£197PSA 9£16.30CGC 10£55.01BGS 10£25617 Oct 2026PSA 10£197PSA 9£16.30CGC 10£55.01BGS 10£25618 Oct 2026PSA 10£197PSA 9£16.30CGC 10£55.01BGS 10£25619 Oct 2026PSA 10£197PSA 9£16.30CGC 10£55.01BGS 10£25620 Oct 2026PSA 10£197PSA 9£16.30CGC 10£55.01BGS 10£25621 Oct 2026PSA 10£197PSA 9£16.30CGC 10£55.01BGS 10£25622 Oct 2026PSA 10£197PSA 9£16.30CGC 10£55.01BGS 10£25623 Oct 2026PSA 10£195PSA 9£16.30CGC 10£55.01BGS 10£254

14 Apr8 May4 Jun27 Jun20 Jul23 Oct

Graded prices from PriceCharting, in GBP. PSA 10 has been tracked since April 2026; the other tiers began recording 3 August 2026 and join the chart as their history builds.

New listings per day

Building

How much new stock hits the UK market each day The scanner records every new UK listing it sees — around 13,600 a day. This charts how many appear for this card once the daily rollup has readings for it.

A direct count of listings we saw appear — not an estimate of every listing on eBay.

Confirmed sales per day

Building

How often this card actually sells We record roughly 4,600 UK auction outcomes a day across the catalogue. This charts how many close with a winning bid, day by day, from the first confirmed sale for this card.

Only auctions that finished with a bid count. A listing vanishing is not proof of a sale, so it is not counted as one.

Recent confirmed sales

Recording live

No confirmed sales for this card yet We log every UK auction that closes with a winning bid — around 4,600 a day across the catalogue. The first result for this card appears here as soon as one sells.

On sale now in the UK

Building

Live UK listings for this card The scanner records every new UK listing it sees — around 13,600 a day. This fills as soon as one appears for this card, showing asking prices cheapest first.

Where these numbers come from

Three independent readings, shown side by side rather than blended into one figure:

HoloHawk Our own market price, from live UK listings

PriceCharting Published reference price, USD converted to GBP

PulseTCG Published reference price, natively GBP

A reading is stored only when a price actually changes, so flat stretches mean the price held — not that data is missing. Where a source has no history for an item its line is absent rather than flat. Confirmed sales are UK auctions that closed with a winning bid, observed within three minutes of close, so each is a lower bound. Live listings are asking prices, not sales. Supply and sales counts are direct observations — listings we saw appear and auctions we saw close with a bid. We do not infer that a listing sold because it disappeared, so nothing here depends on that guess.

Also in Fire Red & Leaf Green

Gengar EX 108	£1,272
Blastoise EX 104	£262
Gyarados EX 109	£246
Charizard EX 105	£195
Professor Oak's Research 98 Professor Program	£113