Seems like the casaulties kept on being alot higher for the Russians compared to the Germans even in 1943-44...
Battle of Kursk and Citadel in 1943 -
https://en.wikipedia.org/wiki/Battle_of_Kursk
Battle of Kharkov 1943 -
https://en.wikipedia.org/wiki/Third_Battle_of_Kharkov
Battle of Korsun-Cherkassy pocket 1944 -
https://en.wikipedia.org/wiki/Battle_of_the_Korsun–Cherkassy_Pocket
Battle of Narva 1944 -
https://en.wikipedia.org/wiki/Battle_of_Narva_(1944)
Finland, battle of Tali-Ihantala 1944 -
https://en.wikipedia.org/wiki/Battle_of_Tali-Ihantala
I agree the Russians won because they had more men AND because of the recieved LL which made it possible to concentrate Russias resources on tank production.
The war was lost for Germany when the USA entered the war in december 1941.
Actually, in reality Soviet casualties, while consistently being higher then the Germans until 1945, were not
significantly higher then the Germans. For 1943-1944, the ratio was generally 1.5:1.
From Absolute War page 594:
"Although the Russian losses were, again, greater than German, the German casualties were horrific, and they could afford them less. Of about seventy German divisions operating in the Kursk area, thirty had been destroyed and the German figures put their losses at more than half a million killed, seriously wounded, prisoners, or missing in fifty days of fighting. That gives about 10,000 a day. The Russian figures show a remarkable shift from inordinate numbers of dead and missing to a more normal ratio of killed to wounded. During the defensive phase there were 70,000 'irrecoverable losses against 107,517 sick and wounded. In Operation Rumyantsev the Russians lost 71,611 'irrecoverables' against 184,000 sick and wounded - closer to the one-to-three norm. In operation Kutuzov, the figures were 112,529 to 317,361, respectively, again, close to the norm of one-to-three. That must be an indicator of improved Russian medical and evacuation procedures. Russian losses per day were 9,360 in the defensive phase, against a total of 23,483 in the two overlapping counteroffensives. With a very rough German toll of 10,000 killed, prisoners, sick, wounded, and missing per day, that is close to the ratio of one German causality to 1.5 Russian, which would apply for the rest of the war."
The problem here is you are using wiki. For example: wikipedia's source on Kursk there is Zetterling, who to my knowledge has only analyzed German casualties during the thirteen days of what the Soviets refer to as the defensive phase (though the total German losses are too high to be just for that phase of the battle even if they're lower than Bellamy gives, which makes me curious to read the original source), whereas Bellamy is concerned with the additional month or so of Soviet counterattacks - which wikipedia also seems to include in its Soviet casualty figures.
There is, ultimately a grain of truth to the whole "Germans lost because they were outnumbered" myth: the Soviets were, and did, consistently able to take manpower heavier losses then pretty much any other WW2 power, save arguably the Chinese, and keep going. However, the degree to which this applies has been horrendously exaggerated as a result of Cold War mythologizing. By 1944 the Russians no longer considered their divisions that expendable. That the Germans thought they were facing endless hordes many times their own numbers is actually more a tribute to the growing mobility of the Red Army as well as intensive Soviet deception plans that grossly inflated the actual size of the force the Germans were facing (much like the phantom divisions at D-Day - the Germans never cottoned on, and in turn the Russians never felt the need to tell their Western Allies).
By 1945 the Red Army had adopted an increasingly mechanistic method of fighting, using firepower and speed rather than manpower and blood to break enemy defenses. One of their basic strategic tenets had also become the conservation of combat power and rapid regeneration of damaged units. It was realized that fighting divisions until they broke was wasteful and ineffective, and ideally a division would be taken off the line after suffering 30% casualties and allowed to recuperate.